fix: preserve scroll position after editing forward rules (#319 )

* fix(dialog): prevent both open and close auto focus to avoid page scroll Add onOpenAutoFocus handler to prevent Radix Dialog from auto-focusing content on open, which can cause unwanted scroll behavior. * fix(dialog): remove onOpenAutoFocus, keep only onCloseAutoFocus Remove onOpenAutoFocus handler that was causing scroll issues on first open. Keep onCloseAutoFocus to prevent scroll to trigger element on close. Key fix: Move {...props} before onCloseAutoFocus to prevent override. * fix(dialog): prevent scroll to top on modal close - Move {...props} before onCloseAutoFocus to prevent override - Simplify handler to just e.preventDefault() - Apply fix to both dialog.tsx and modal.tsx * fix: preserve scroll position after editing forward rules Move getForwardDisplayFlow outside component to prevent unnecessary re-renders that reset scroll position on save.
fix(dialog): prevent scroll to top on modal close (#318 )
2026-09-28 07:36:38 +08:00 · 2026-03-14 12:14:15 +08:00 · 2026-03-14 02:32:35 +00:00 · 2026-03-14 09:38:09 +08:00 · 2026-03-13 17:35:18 +08:00 · 2026-03-13 17:04:54 +08:00
185 changed files with 28484 additions and 2632 deletions
@@ -0,0 +1,84 @@
+{
+  "hooks": {
+    "PostToolUse": [
+      {
+        "matcher": "Task",
+        "hooks": [
+          {
+            "type": "command",
+            "command": "entire hooks claude-code post-task"
+          }
+        ]
+      },
+      {
+        "matcher": "TodoWrite",
+        "hooks": [
+          {
+            "type": "command",
+            "command": "entire hooks claude-code post-todo"
+          }
+        ]
+      }
+    ],
+    "PreToolUse": [
+      {
+        "matcher": "Task",
+        "hooks": [
+          {
+            "type": "command",
+            "command": "entire hooks claude-code pre-task"
+          }
+        ]
+      }
+    ],
+    "SessionEnd": [
+      {
+        "matcher": "",
+        "hooks": [
+          {
+            "type": "command",
+            "command": "entire hooks claude-code session-end"
+          }
+        ]
+      }
+    ],
+    "SessionStart": [
+      {
+        "matcher": "",
+        "hooks": [
+          {
+            "type": "command",
+            "command": "entire hooks claude-code session-start"
+          }
+        ]
+      }
+    ],
+    "Stop": [
+      {
+        "matcher": "",
+        "hooks": [
+          {
+            "type": "command",
+            "command": "entire hooks claude-code stop"
+          }
+        ]
+      }
+    ],
+    "UserPromptSubmit": [
+      {
+        "matcher": "",
+        "hooks": [
+          {
+            "type": "command",
+            "command": "entire hooks claude-code user-prompt-submit"
+          }
+        ]
+      }
+    ]
+  },
+  "permissions": {
+    "deny": [
+      "Read(./.entire/metadata/**)"
+    ]
+  }
+}
@@ -0,0 +1,48 @@
+name: Publish Skill to npm
+
+on:
+  push:
+    tags:
+      - 'v*'
+  workflow_dispatch:
+
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+      id-token: write
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+          registry-url: 'https://registry.npmjs.org'
+
+      - name: Get version from tag
+        id: version
+        run: |
+          if [ "${{ github.event_name }}" = "workflow_dispatch" ]; then
+            VERSION=$(node -p "require('./skills/flvx-api/package.json').version")
+          else
+            VERSION="${GITHUB_REF#refs/tags/v}"
+          fi
+          echo "version=$VERSION" >> $GITHUB_OUTPUT
+          echo "Publishing skill version: $VERSION"
+
+      - name: Publish to npm
+        working-directory: skills/flvx-api
+        run: npm publish --provenance --access public
+        env:
+          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
+
+      - name: Create GitHub Release
+        if: github.event_name == 'push'
+        uses: softprops/action-gh-release@v1
+        with:
+          name: Skill v${{ steps.version.outputs.version }}
+          generate_release_notes: true
+          files: skills/flvx-api/package.json
@@ -0,0 +1,33 @@
+# Issue #211: 转发自定义监听IP / 隧道指定连接IP
+
+## 需求总结
+1. **节点**: 高级配置增加"额外IP地址"字段（逗号分隔）
+2. **转发**: 创建/编辑时可指定入口监听IP
+3. **隧道**: 配置出口节点时可指定连接IP
+
+---
+
+## 任务清单
+
+### 后端
+- [x] 1. 数据模型扩展 - Node/ForwardPort/ChainTunnel 增加字段
+- [x] 2. Repository - CreateNode/UpdateNode 处理 extraIPs
+- [x] 3. Repository - resolveForwardIngress 使用 forward_port.in_ip
+- [x] 4. Repository - GetNodeAllIPs 辅助函数（返回节点所有可用IP）
+- [x] 5. Handler - 转发创建/更新处理 inIp 参数
+- [x] 6. Handler - 隧道出口节点处理 connectIp 参数
+- [x] 7. Handler - 节点API返回 extraIPs 字段
+
+### 前端
+- [x] 8. 节点编辑页 - 高级配置增加"额外IP"输入
+- [x] 9. 转发编辑弹窗 - 增加"监听IP"下拉选择
+- [x] 10. 隧道配置页 - 出口节点增加"连接IP"输入
+
+---
+
+## 完成进度
+- 开始时间: 2026-03-02
+- 完成时间: 2026-03-02
+- 完成任务: 10/10
+- 后端完成: ✅
+- 前端完成: ✅
@@ -1,12 +1,12 @@
 # PROJECT KNOWLEDGE BASE

-**Generated:** Thu Feb 19 2026
-**Commit:** 137c34e
+**Generated:** Thu Feb 26 2026
+**Commit:** 21008cc
 **Branch:** main
-**Tag:** 2.1.4-rc2
+**Tag:** 2.1.5-rc15

 ## OVERVIEW
-FLVX (formerly Flux Panel) is a traffic forwarding management system built on a forked GOST v3 stack. It ships as a Go-based admin API (SQLite) + Vite/React UI + Go forwarding agent, with optional mobile WebView wrappers.
+FLVX (formerly Flux Panel) is a traffic forwarding management system built on a forked GOST v3 stack. It ships as a Go-based admin API (SQLite/PostgreSQL) + Vite/React UI + Go forwarding agent, with optional mobile WebView wrappers.

 ## STRUCTURE
 ```
@@ -14,12 +14,14 @@ FLVX (formerly Flux Panel) is a traffic forwarding management system built on a
 ├── go-gost/               # Go forwarding agent (forked gost + local x/)
 │   └── x/                 # Local fork of github.com/go-gost/x (replace => ./x)
 ├── go-backend/            # Go Admin API (GORM + SQLite/PostgreSQL, net/http)
+│   └── tests/contract/    # Integration/contract tests
 ├── vite-frontend/         # React/Vite dashboard (shadcn bridge + Tailwind v4)
+│   └── src/shadcn-bridge/heroui/  # HeroUI-compatible facade
 ├── docker-compose-v4.yml  # Panel deploy (IPv4-only bridge)
 ├── docker-compose-v6.yml  # Panel deploy (IPv6-enabled bridge)
 ├── panel_install.sh       # Panel installer/upgrader (downloads compose)
 ├── install.sh             # Node installer/upgrader (downloads gost binary)
-└── .github/workflows/     # CI: build/push images + release artifacts
+└── .github/workflows/     # CI: build/test + Docker push + release artifacts
 ```

 ## WHERE TO LOOK
@@ -29,12 +31,15 @@ FLVX (formerly Flux Panel) is a traffic forwarding management system built on a
 | **Deploy (IPv6)** | `docker-compose-v6.yml` | Same as v4 + IPv6-enabled bridge |
 | **Panel install** | `panel_install.sh` | Picks v4/v6, generates `JWT_SECRET`, downloads compose |
 | **Node install** | `install.sh` | Installs `/etc/flux_agent/flux_agent` + writes `config.json`/`gost.json` + systemd `flux_agent.service` |
-| **Admin API** | `go-backend/` | Go Admin API (SQLite) |
+| **Admin API** | `go-backend/` | Go Admin API (SQLite/PostgreSQL) |
 | **Web UI** | `vite-frontend/` | React/Vite dashboard (shadcn bridge + Tailwind v4) |
 | **UI Compatibility** | `vite-frontend/src/shadcn-bridge/heroui/` | HeroUI-compatible API wrappers backed by shadcn/radix |
 | **Theme Tokens** | `vite-frontend/src/styles/tailwind-theme.pcss` | Tailwind v4 `@theme inline` semantic color mapping |
 | **Go Agent** | `go-gost/` | Forwarding agent (forked gost + local x/) |
 | **Go Core** | `go-gost/x/` | Handlers/listeners/dialers + management API |
+| **Repository Layer** | `go-backend/internal/store/repo/` | GORM data access (repository.go 83k LOC) |
+| **Contract Tests** | `go-backend/tests/contract/` | Integration tests for auth, federation, tunnels |
+| **CI Workflows** | `.github/workflows/` | ci-build.yml, docker-build.yml, deploy-docs.yml |

 ## CODE MAP
 | Symbol | Type | Location | Role |
@@ -43,15 +48,19 @@ FLVX (formerly Flux Panel) is a traffic forwarding management system built on a
 | `main` | Func | `go-backend/cmd/paneld/main.go` | Backend Entry |
 | `App` | Component | `vite-frontend/src/App.tsx` | Frontend Entry |
 | `main` | Func | `go-gost/main.go` | Agent Entry |
-
+| `Repository` | Struct | `go-backend/internal/store/repo/repository.go` | Data Access Layer |
+| `Handler` | Struct | `go-backend/internal/http/handler/handler.go` | HTTP Handlers |
+| `websocket_reporter` | Func | `go-gost/x/socket/websocket_reporter.go` | Panel Telemetry |

 ## CONVENTIONS
+- **Skills & MCP**: Always prefer using available skills (via `skill` tool) and MCP tools when applicable. Check for relevant skills before implementing from scratch.
 - **Auth**: `Authorization` header carries the raw JWT token (no `Bearer` prefix) between `vite-frontend/` and `go-backend/`.
 - **Module Fork**: `go-gost/` uses `replace github.com/go-gost/x => ./x` and `go-gost/x/` is also its own Go module.
 - **Encryption**: Agent-to-panel communication uses AES encryption with node `secret` as PSK.
 - **API Envelope**: All REST responses follow `{code, msg, data, ts}` structure (code 0 = success).
 - **Frontend UI Layer**: Import UI primitives from `src/shadcn-bridge/heroui/*` (legacy-compatible facade), not direct `@heroui/*` packages.
 - **Tailwind v4 Semantic Colors**: `src/styles/globals.css` must import `src/styles/tailwind-theme.pcss`; removing it breaks semantic classes like `bg-primary`, `text-foreground`, and `border-input`.
+- **Go Versions**: `go-backend` uses Go 1.24, `go-gost` uses Go 1.23, `go-gost/x` uses Go 1.22.

 ## ANTI-PATTERNS (THIS PROJECT)
 - **DO NOT EDIT** generated protobuf output: `go-gost/x/internal/util/grpc/proto/*.pb.go`, `go-gost/x/internal/util/grpc/proto/*_grpc.pb.go`.
@@ -60,6 +69,8 @@ FLVX (formerly Flux Panel) is a traffic forwarding management system built on a
 - **DO NOT** let backend handlers call `repo.DB()` directly — add a Repository method instead.
 - **DO NOT ADD** frontend tests - project has no test infrastructure (Vitest/Jest not configured).
 - **DO NOT REINTRODUCE** `@heroui/*` or `@nextui-org/*` dependencies; migration is now shadcn bridge-based.
+- **DO NOT** use `type:jsonb` or `type:serial` in GORM tags (SQLite incompatible).
+- **DO NOT** omit `TableName()` on new models — GORM pluralizes by default.

 ## COMMANDS
 ```bash
@@ -75,15 +86,21 @@ docker compose -f docker-compose-v6.yml up -d
 (cd go-backend && make build)
 (cd vite-frontend && npm run dev)
 (cd go-gost && go run .)
+
+# Testing
+(cd go-backend && go test ./...)
+(cd go-backend && go test ./tests/contract/...)
 ```

 ## UNIQUE STYLES
 - **Flat Monorepo**: Language-prefixed dirs (`go-backend`, `go-gost`, `vite-frontend`) instead of `apps/`/`libs/`.
 - **Asymmetric Go Layout**: `go-backend` follows `cmd/<app>/main.go` while `go-gost` uses `root/main.go`.
 - **Frontend Hybrid Mode**: `App.tsx` detects "H5 mode" (mobile WebView) vs desktop, dictating layout strategy.
+- **Experimental Bundler**: `vite-frontend` uses `rolldown-vite` (Rust-based) instead of standard Vite.
+- **Non-minified Builds**: `vite.config.ts` sets `minify: false`, `treeshake: false` for debugging.

 ## NOTES
- LSP servers are not installed in this environment (gopls/jdtls/typescript-language-server); rely on grep-based navigation.
+- LSP servers are not installed in this environment (gopls/typescript-language-server); rely on grep-based navigation.
 - `vite-frontend/vite.config.ts` sets `minify: false` and disables treeshake; expect larger bundles.
 - `vite-frontend` uses `rolldown-vite` (experimental Rust bundler) instead of standard Vite.
 - Install scripts (`install.sh`, `panel_install.sh`) self-delete after execution - common pattern in one-liner installs.
@@ -91,7 +108,16 @@ docker compose -f docker-compose-v6.yml up -d
 - CI dynamically injects `PINNED_VERSION` into install scripts and docker-compose files during releases.
 - `panel_install.sh` auto-detects IPv6 and modifies `/etc/docker/daemon.json` to enable IPv6 bridge.
 - Download proxy `https://gcode.hostcentral.cc/` used for GitHub downloads in China/restricted environments.
- Backend has contract tests in `go-backend/tests/contract/` - frontend has no test infrastructure (Vitest/Jest not configured).
+- Backend has contract tests in `go-backend/tests/contract/` - frontend has no test infrastructure.
 - `analysis/3x-ui/` contains a separate git repo for reference/comparison - not part of FLVX core.
- PR `#144` (shadcn migration) and PR `#142` (user-group binding) are merged into `main`; release tag `2.1.4-rc2` points to commit `137c34e`.
+- CI workflows: `ci-build.yml` (build check), `docker-build.yml` (multi-arch images + release), `deploy-docs.yml` (MkDocs).
+- PostgreSQL migration supported via `panel_install.sh` menu option using pgloader.
+- Repository layer is large: `repository.go` (83k LOC), `repository_mutations.go` (43k LOC).
 - Button visual parity relies on `vite-frontend/src/shadcn-bridge/heroui/button.tsx` color mapping + `vite-frontend/src/styles/tailwind-theme.pcss` token export.
+
+## PLAN DOCUMENT RULE
+- Every new implementation plan must have a dedicated Markdown plan document.
+- Store plan documents under `plans/`.
+- Use an incrementing numeric prefix and a short plan-summary name: `NNN-<plan-summary>.md` (for example, `001-auth-refactor.md`, `002-federation-api-cleanup.md`).
+- The numeric prefix must increase by 1 for each new plan.
+- In each plan document, keep a task checklist and mark each task as completed immediately after finishing it.
@@ -0,0 +1,148 @@
+# 限速功能重构实施计划
+
+## 一、需求概述
+
+**原始需求**: 限速功能当前绑定到具体隧道，需要改为不绑定隧道，创建限速后可以自由在隧道上限速，也可以在转发上限速。
+
+**核心变更**:
+1. 限速规则(SpeedLimit)与隧道的绑定关系改为可选
+2. 转发(Forward)支持独立的限速规则
+
+---
+
+## 二、实施计划清单
+
+### 2.0 计划状态（审计更新：2026-02-26）
+
+- 总体状态：**进行中（未验收通过）**
+- 已完成：模型、仓储查询、限速 CRUD、控制面优先级、限速页与类型改造、编译与测试通过
+- 未完成：**Forward 独立限速写入链路**（前端表单 -> API handler -> repository 落库 `forward.speed_id`）
+
+### 2.1 后端模型层 (Model)
+
+| 序号 | 任务 | 文件 | 状态 |
+|------|------|------|------|
+| M1 | SpeedLimit.TunnelID 改为 sql.NullInt64 (可空) | `go-backend/internal/store/model/model.go` | ✅ 完成 |
+| M2 | SpeedLimit.TunnelName 改为 sql.NullString (可空) | `go-backend/internal/store/model/model.go` | ✅ 完成 |
+| M3 | Forward 添加 SpeedID sql.NullInt64 字段 | `go-backend/internal/store/model/model.go` | ✅ 完成 |
+| M4 | ForwardRecord 添加 SpeedID sql.NullInt64 字段 | `go-backend/internal/store/model/model.go` | ✅ 完成 |
+| M5 | SpeedLimitBackup.TunnelID 改为指针类型 | `go-backend/internal/store/model/model.go` | ✅ 完成 |
+| M6 | ForwardBackup 添加 SpeedID *int64 字段 | `go-backend/internal/store/model/model.go` | ✅ 完成 |
+
+### 2.2 后端仓储层 (Repository)
+
+| 序号 | 任务 | 文件 | 状态 |
+|------|------|------|------|
+| R1 | ListSpeedLimits() 返回可空 tunnelId/tunnelName | `go-backend/internal/store/repo/repository.go` | ✅ 完成 |
+| R2 | ListForwards() 返回 speedId 字段 | `go-backend/internal/store/repo/repository.go` | ✅ 完成 |
+| R3 | CreateSpeedLimit() 参数 tunnelID 改为 *int64 | `go-backend/internal/store/repo/repository_mutations.go` | ✅ 完成 |
+| R4 | UpdateSpeedLimit() 参数 tunnelID 改为 *int64 | `go-backend/internal/store/repo/repository_mutations.go` | ✅ 完成 |
+| R5 | GetSpeedLimitTunnelID() 返回 sql.NullInt64 | `go-backend/internal/store/repo/repository_mutations.go` | ✅ 完成 |
+| R6 | exportSpeedLimits() 处理可空字段 | `go-backend/internal/store/repo/repository.go` | ✅ 完成 |
+| R7 | importSpeedLimits() 处理可空字段 | `go-backend/internal/store/repo/repository.go` | ✅ 完成 |
+| R8 | GetSpeedLimitSpeed() 新增方法 | `go-backend/internal/store/repo/repository_flow.go` | ✅ 完成 |
+| R9 | ListForwardsByTunnel() 返回 SpeedID | `go-backend/internal/store/repo/repository_control.go` | ✅ 完成 |
+| R10 | ListActiveForwardsByUser() 返回 SpeedID | `go-backend/internal/store/repo/repository_flow.go` | ✅ 完成 |
+| R11 | ListActiveForwardsByUserTunnel() 返回 SpeedID | `go-backend/internal/store/repo/repository_flow.go` | ✅ 完成 |
+| R12 | GetForwardRecord() 返回 SpeedID | `go-backend/internal/store/repo/repository_flow.go` | ✅ 完成 |
+
+### 2.3 后端处理器层 (Handler)
+
+| 序号 | 任务 | 文件 | 状态 |
+|------|------|------|------|
+| H1 | speedLimitCreate 处理可选 tunnelId | `go-backend/internal/http/handler/mutations.go` | ✅ 完成 |
+| H2 | speedLimitUpdate 处理可选 tunnelId | `go-backend/internal/http/handler/mutations.go` | ✅ 完成 |
+| H3 | speedLimitDelete 处理可空 tunnelID | `go-backend/internal/http/handler/mutations.go` | ✅ 完成 |
+
+### 2.4 后端控制平面 (Control Plane)
+
+| 序号 | 任务 | 文件 | 状态 |
+|------|------|------|------|
+| C1 | syncForwardServices 优先使用 Forward.SpeedID | `go-backend/internal/http/handler/control_plane.go` | ✅ 完成 |
+| C2 | 回退到 UserTunnel 的 speed limit | `go-backend/internal/http/handler/control_plane.go` | ✅ 完成 |
+
+### 2.5 前端类型定义 (TypeScript Types)
+
+| 序号 | 任务 | 文件 | 状态 |
+|------|------|------|------|
+| T1 | SpeedLimitApiItem.tunnelId 改为可选 | `vite-frontend/src/api/types.ts` | ✅ 完成 |
+| T2 | ForwardApiItem 添加 speedId 字段 | `vite-frontend/src/api/types.ts` | ✅ 完成 |
+| T3 | ForwardMutationPayload 添加 speedId 字段 | `vite-frontend/src/api/types.ts` | ✅ 完成 |
+| T4 | SpeedLimitMutationPayload.tunnelId 改为可选 | `vite-frontend/src/api/types.ts` | ✅ 完成 |
+
+### 2.6 前端页面组件
+
+| 序号 | 任务 | 文件 | 状态 |
+|------|------|------|------|
+| F1 | SpeedLimitRule 接口更新 | `vite-frontend/src/pages/limit.tsx` | ✅ 完成 |
+| F2 | SpeedLimitForm 接口更新 | `vite-frontend/src/pages/limit.tsx` | ✅ 完成 |
+| F3 | validateForm 移除 tunnelId 必填校验 | `vite-frontend/src/pages/limit.tsx` | ✅ 完成 |
+| F4 | Select 组件改为可选 | `vite-frontend/src/pages/limit.tsx` | ✅ 完成 |
+| F5 | 显示"未绑定"状态 | `vite-frontend/src/pages/limit.tsx` | ✅ 完成 |
+
+### 2.7 编译验证
+
+| 序号 | 任务 | 状态 |
+|------|------|------|
+| B1 | Go 后端编译通过 | ✅ 完成 |
+| B2 | TypeScript 类型检查通过 | ✅ 完成 |
+| B3 | `go test ./...` 全量通过 | ✅ 完成 |
+| B4 | `go test ./tests/contract/... -run SpeedLimit` 通过 | ✅ 完成 |
+
+### 2.8 Forward 独立限速写入链路补全（新增）
+
+| 序号 | 任务 | 文件 | 状态 |
+|------|------|------|------|
+| N1 | forwardCreate 支持接收并校验可选 speedId，写入 Forward.SpeedID | `go-backend/internal/http/handler/mutations.go` | ✅ 完成 |
+| N2 | forwardUpdate 支持更新/清空 speedId，并触发服务重下发 | `go-backend/internal/http/handler/mutations.go` | ✅ 完成 |
+| N3 | CreateForwardTx 支持落库 speed_id | `go-backend/internal/store/repo/repository_mutations.go` | ✅ 完成 |
+| N4 | UpdateForward 支持更新 speed_id | `go-backend/internal/store/repo/repository_mutations.go` | ✅ 完成 |
+| N5 | Forward 页面新增限速选择并透传 speedId | `vite-frontend/src/pages/forward.tsx` | ✅ 完成 |
+| N6 | Forward 相关契约测试补充 speedId 写入/清空断言 | `go-backend/tests/contract/forward_contract_test.go` | ✅ 完成 |
+
+---
+
+## 三、优先级说明
+
+限速规则应用优先级:
+1. **Forward.SpeedID** - 转发级别的限速 (最高优先)
+2. **UserTunnel.SpeedID** - 用户隧道权限级别的限速 (回退)
+
+---
+
+## 四、数据库兼容性
+
+- SpeedLimit 表: `tunnel_id` 和 `tunnel_name` 字段改为可空 (GORM AutoMigrate 自动处理)
+- Forward 表: 新增 `speed_id` 可空字段 (GORM AutoMigrate 自动处理)
+
+---
+
+## 五、验证检查项
+
+### 5.1 功能验证（审计后）
+
+- [x] 创建不限速规则的限速 (不绑定隧道)
+- [x] 创建绑定隧道的限速 (兼容旧逻辑)
+- [x] 编辑限速规则，切换隧道绑定状态
+- [ ] 删除限速规则
+- [ ] 转发列表正确显示 speedId
+
+### 5.2 API 验证（审计后）
+
+- [x] GET /api/speed-limit/list 返回可选 tunnelId
+- [x] POST /api/speed-limit/create 接受可选 tunnelId
+- [x] POST /api/speed-limit/update 接受可选 tunnelId
+- [ ] GET /api/forward/list 返回 speedId
+
+### 5.3 兼容性验证（审计后）
+
+- [x] 现有绑定隧道的限速规则继续正常工作
+- [ ] 现有 UserTunnel 的限速继续正常工作
+- [ ] 备份/恢复功能正常
+
+### 5.4 Forward 独立限速闭环验证（新增）
+
+- [x] POST /api/forward/create 接受 speedId 并写入 `forward.speed_id`
+- [x] POST /api/forward/update 可更新/清空 speedId
+- [x] Forward 表单可选择限速并提交 speedId
+- [ ] `syncForwardServices` 实际使用 Forward.SpeedID 而非仅回退 UserTunnel.SpeedID
@@ -0,0 +1,220 @@
+# AI Skill 使用指南
+
+让大模型直接操作 FLVX 面板的技能包。支持 OpenCode、OpenClaw、Claude Code 等工具。
+
+## 安装
+
+### 方式 1: npm (推荐)
+
+```bash
+npm install -g @flvx/skill-api
+```
+
+postinstall 脚本会自动链接到 `~/.agents/skills/flvx-api/`。
+
+### 方式 2: 手动链接
+
+```bash
+# 从 FLVX 源码
+cd /path/to/flvx
+mkdir -p ~/.agents/skills
+ln -sf $(pwd)/skills/flvx-api ~/.agents/skills/
+
+# 或从 GitHub
+git clone https://github.com/Sagit-chu/flvx.git
+cd flvx
+ln -sf $(pwd)/skills/flvx-api ~/.agents/skills/
+```
+
+## 配置
+
+设置环境变量：
+
+```bash
+export FLVX_BASE_URL="https://your-panel.example.com"
+export FLVX_USERNAME="admin"
+export FLVX_PASSWORD="your-password"
+```
+
+或使用凭证文件：
+
+```bash
+mkdir -p ~/.flvx
+cat > ~/.flvx/.env << 'EOF'
+export FLVX_BASE_URL="https://panel.example.com"
+export FLVX_USERNAME="admin"
+export FLVX_PASSWORD="your-password"
+EOF
+chmod 600 ~/.flvx/.env
+source ~/.flvx/.env
+```
+
+---
+
+## 工具接入方法
+
+### OpenCode
+
+OpenCode 是命令行 AI 编程助手，支持通过 skills 扩展能力。
+
+**安装 skill:**
+```bash
+npm install -g @flvx/skill-api
+```
+
+**使用:**
+```bash
+export FLVX_BASE_URL="https://panel.example.com"
+export FLVX_USERNAME="admin"
+export FLVX_PASSWORD="your-password"
+
+opencode
+```
+
+**示例对话:**
+```
+你: 查看我的转发列表
+你: 创建一个转发到 192.168.1.100:80 使用隧道 1
+你: 检查节点状态
+你: 查看流量使用情况
+```
+
+---
+
+### OpenClaw
+
+OpenClaw 同样支持 skills 机制。
+
+**安装 skill:**
+```bash
+npm install -g @flvx/skill-api
+
+# 或手动链接
+mkdir -p ~/.openclaw/skills
+ln -sf /path/to/flvx/skills/flvx-api ~/.openclaw/skills/flvx-api
+```
+
+**使用:**
+```bash
+openclaw
+
+>>> 查看所有节点状态
+>>> 给用户 alice 分配 50GB 流量
+>>> 导出系统备份
+```
+
+---
+
+### Claude Code
+
+Claude Code 是 Anthropic 官方的命令行工具，支持通过 CLAUDE.md 扩展。
+
+#### 方式 1: 项目级 CLAUDE.md
+
+在项目根目录创建 `CLAUDE.md`：
+
+```markdown
+# FLVX API Skill
+
+你可以通过 REST API 操作 FLVX 面板。
+
+## 环境变量
+- FLVX_BASE_URL: 面板地址
+- FLVX_USERNAME: 用户名
+- FLVX_PASSWORD: 密码
+
+## 认证规则
+- Authorization 头使用原始 JWT token，不加 "Bearer " 前缀
+- 所有 API 使用 POST 方法
+
+## 常用 API
+
+### 登录获取 token
+POST /api/v1/user/login
+{"username": "...", "password": "..."}
+
+### 查看转发列表
+POST /api/v1/forward/list
+Authorization: <token>
+{}
+
+### 创建转发
+POST /api/v1/forward/create
+{"name": "xxx", "tunnelId": 1, "remoteAddr": "1.2.3.4:80"}
+
+### 查看节点
+POST /api/v1/node/list
+{}
+```
+
+**使用:**
+```bash
+cd /path/to/your/project
+claude
+```
+
+#### 方式 2: 全局 CLAUDE.md
+
+```bash
+mkdir -p ~/.claude
+cat > ~/.claude/CLAUDE.md << 'EOF'
+# FLVX Panel Operations
+
+使用 FLVX REST API 操作流量转发面板。
+
+环境变量: FLVX_BASE_URL, FLVX_USERNAME, FLVX_PASSWORD
+调用方式: curl -X POST "$FLVX_BASE_URL/api/v1/..." -H "Authorization: $TOKEN"
+注意: Authorization 不要加 Bearer 前缀
+EOF
+```
+
+#### 方式 3: 复制 SKILL.md
+
+```bash
+cat ~/.agents/skills/flvx-api/SKILL.md >> ~/.claude/CLAUDE.md
+```
+
+**示例对话:**
+```
+>>> 帮我查看 FLVX 面板上有哪些节点
+>>> 创建一个名为 test 的转发，目标地址 10.0.0.1:80
+>>> 查看我的流量使用情况
+```
+
+---
+
+## API 覆盖
+
+| 模块 | 操作 |
+|------|------|
+| 认证 | 登录、Token 管理 |
+| 用户 | 增删改查、流量重置、密码 |
+| 节点 | 增删改查、安装、升级、状态 |
+| 隧道 | 增删改查、用户分配 |
+| 转发 | 增删改查、暂停/恢复、诊断 |
+| 分组 | 用户/隧道分组、权限 |
+| 限速 | 增删改查 |
+| 联邦 | 节点共享、远程节点 |
+| 备份 | 导出/导入 |
+
+## 安全提示
+
+- ⚠️ 环境变量在进程列表中可见
+- 使用 `~/.flvx/.env` 文件并设置 `chmod 600`
+- 添加 `export HISTIGNORE="*FLVX_PASSWORD*"` 防止密码进入历史记录
+- Token 仅在会话内存中缓存，不写入磁盘
+
+## 发布
+
+维护者可通过以下方式发布新版本：
+
+```bash
+# 方式 1: 推送 tag
+git tag skill-v2.1.6
+git push --tags
+
+# 方式 2: GitHub Actions 手动触发
+# 在 Actions 页面运行 publish-skill workflow
+```
+
+需要在 GitHub 仓库设置 `NPM_TOKEN` secret。
@@ -18,6 +18,7 @@
 - [安装部署](./install.md)
 - [使用指南](./usage.md)
 - [PostgreSQL 数据库指南](./postgresql.md)
+- [AI Skill 接入](./ai-skill.md) - 让大模型直接操作面板
 - [常见问题](./faq.md)

 ## 免责声明
@@ -2,7 +2,7 @@

 ## OVERVIEW
 Go-based Admin API for FLVX. Replaced legacy Spring Boot backend.
-**Stack:** Go 1.23, net/http (std lib), GORM + SQLite/PostgreSQL (glebarez/sqlite - CGO-free).
+**Stack:** Go 1.24, net/http (std lib), GORM + SQLite/PostgreSQL (glebarez/sqlite - CGO-free).

 ## STRUCTURE
 ```
@@ -17,14 +17,15 @@ go-backend/
 │   ├── store/
 │   │   ├── model/model.go    # GORM model structs (single source of truth)
 │   │   └── repo/             # Data Access Layer (Repository pattern, GORM)
-│   │       ├── repository.go           # Core queries, Open/OpenPostgres, AutoMigrate
-│   │       ├── repository_mutations.go # Mutation helpers (user/node/tunnel/forward CRUD)
-│   │       ├── repository_federation.go# Federation-specific queries
+│   │       ├── repository.go           # Core queries, Open/OpenPostgres, AutoMigrate (83k LOC)
+│   │       ├── repository_mutations.go # Mutation helpers (user/node/tunnel/forward CRUD, 43k LOC)
+│   │       ├── repository_federation.go # Federation-specific queries
 │   │       ├── repository_flow.go      # Flow/forward status queries
-│   │       └── repository_control.go   # Control plane queries
+│   │       ├── repository_control.go   # Control plane queries
+│   │       └── repository_groups.go    # Group management queries
 │   └── auth/                 # Auth logic
-├── tests/                    # Integration/Contract tests
-├── Dockerfile                # Multi-stage build (alpine)
+├── tests/contract/            # Integration/contract tests (14 tests)
+├── Dockerfile                # Multi-stage build (golang:1.24-bookworm → debian:bookworm-slim)
 └── Makefile                  # Build commands
 ```

@@ -36,6 +37,7 @@ go-backend/
 | **Repository** | `go-backend/internal/store/repo/` | GORM-based queries, all DB ops encapsulated |
 | **Auth Middleware** | `go-backend/internal/http/middleware/jwt.go` | Extracts `Authorization` header |
 | **WebSocket** | `go-backend/internal/ws/` | Real-time updates (traffic, status) |
+| **Contract Tests** | `go-backend/tests/contract/` | Integration tests for auth, federation, tunnels |

 ## CONVENTIONS
 - **GORM ORM**: Uses GORM with `glebarez/sqlite` (CGO-free) and `gorm.io/driver/postgres`.
@@ -47,6 +49,7 @@ go-backend/
 - **API Envelope**: All responses use `response.R{code, msg, data, ts}` structure.
 - **Config**: Loaded from environment variables (see `cmd/paneld/main.go`).
 - **SQLite Constraints**: `MaxOpenConns(1)`, WAL mode, busy_timeout=5000.
+- **PostgreSQL**: Supported via `DB_TYPE=postgres` and `DATABASE_URL` env vars.

 ## ANTI-PATTERNS
 - **DO NOT** let handlers call `repo.DB()` directly — add a Repository method instead.
@@ -58,6 +61,7 @@ go-backend/
 ```bash
 cd go-backend
 go run ./cmd/paneld       # Default: SERVER_ADDR=:6365
-go test ./...
+go test ./...             # Unit tests
+go test ./tests/contract/... # Contract tests
 make build
 ```
@@ -49,7 +49,7 @@ func New(cfg config.Config) (*App, error) {
 		Handler:           router,
 		ReadTimeout:       30 * time.Second,
 		ReadHeaderTimeout: 5 * time.Second,
-		WriteTimeout:      30 * time.Second,
+		WriteTimeout:      2 * time.Minute,
 		IdleTimeout:       60 * time.Second,
 	}

@@ -1,10 +1,10 @@
 # BACKEND HTTP HANDLER KNOWLEDGE BASE

-**Generated:** Sun Feb 15 2026
+**Generated:** Thu Feb 26 2026

 ## OVERVIEW
 HTTP request handlers for FLVX Admin API. Core business logic layer.
-**Stack:** Go 1.23, net/http, GORM via Repository pattern.
+**Stack:** Go 1.24, net/http, GORM via Repository pattern.

 ## STRUCTURE
 ```
@@ -14,7 +14,7 @@ handler/
 ├── federation.go     # Federation/cluster sync API
 ├── flow_policy.go    # Traffic policy API
 ├── jobs.go           # Background job management (sync, cleanup)
-├── mutations.go      # CRUD for users, tunnels, forwards (largest: 100k+ LOC)
+├── mutations.go      # CRUD for users, tunnels, forwards (~3700 LOC)
 └── upgrade.go        # System upgrade API
 ```

@@ -26,10 +26,11 @@ handler/
 | **Federation Sync** | `federation.go` | Panel-to-panel sync |
 | **Traffic Policies** | `flow_policy.go` | Flow limiting, quota management |
 | **Background Jobs** | `jobs.go` | Scheduled sync/cleanup tasks |
+| **Node Control** | `control_plane.go` | Node add/delete/list operations |

 ## CONVENTIONS
 - Inherits from parent: GORM via Repository pattern, JWT in Authorization header.
- Large files expected (`mutations.go` 3716 LOC - central mutation hub).
+- Large files expected (`mutations.go` ~3700 LOC - central mutation hub).
 - Uses `repo.Repository` for DB access via `h.repo.XXX()` methods.
 - Handlers never call `repo.DB()` directly — all queries go through Repository methods.
 - Domain-driven file split: one file per functional area (federation, jobs, etc.).
@@ -1,8 +1,11 @@
 package handler

 import (
+	"errors"
 	"reflect"
 	"testing"
+
+	"go-backend/internal/store/repo"
 )

 func TestBuildForwardControlServiceNamesPauseResume(t *testing.T) {
@@ -42,6 +45,20 @@ func TestBuildForwardServiceBaseCandidatesWithZeroPreferred(t *testing.T) {
 	}
 }

+func TestBuildForwardServiceBaseWithResolvedUserTunnel(t *testing.T) {
+	got := buildForwardServiceBaseWithResolvedUserTunnel(12, 34, 56)
+	if got != "12_34_56" {
+		t.Fatalf("expected 12_34_56, got %s", got)
+	}
+}
+
+func TestBuildForwardServiceBaseWithResolvedUserTunnelFallbackToZero(t *testing.T) {
+	got := buildForwardServiceBaseWithResolvedUserTunnel(12, 34, 0)
+	if got != "12_34_0" {
+		t.Fatalf("expected 12_34_0, got %s", got)
+	}
+}
+
 func TestShouldTryLegacySingleService(t *testing.T) {
 	if !shouldTryLegacySingleService("PauseService") {
 		t.Fatalf("PauseService should require legacy fallback")
@@ -53,3 +70,418 @@ func TestShouldTryLegacySingleService(t *testing.T) {
 		t.Fatalf("DeleteService should not require legacy fallback")
 	}
 }
+
+func TestShouldSelfHealForwardServiceControl(t *testing.T) {
+	if !shouldSelfHealForwardServiceControl("PauseService") {
+		t.Fatalf("PauseService should trigger self-heal")
+	}
+	if !shouldSelfHealForwardServiceControl(" resumeService ") {
+		t.Fatalf("ResumeService should trigger self-heal")
+	}
+	if shouldSelfHealForwardServiceControl("DeleteService") {
+		t.Fatalf("DeleteService should not trigger self-heal")
+	}
+}
+
+func TestControlForwardServiceCommandHandledOnKnownVariant(t *testing.T) {
+	bases := []string{"12_34_56"}
+	called := make([]string, 0)
+	handled, lastNotFoundErr, err := controlForwardServiceCommand(bases, "PauseService", func(name string) error {
+		called = append(called, name)
+		if name == "12_34_56_udp" {
+			return nil
+		}
+		return errors.New("service " + name + " not found")
+	})
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if !handled {
+		t.Fatalf("expected handled=true")
+	}
+	if lastNotFoundErr != nil {
+		t.Fatalf("expected lastNotFoundErr=nil when handled")
+	}
+	wantCalls := []string{"12_34_56_tcp", "12_34_56_udp", "12_34_56"}
+	if !reflect.DeepEqual(called, wantCalls) {
+		t.Fatalf("expected calls %v, got %v", wantCalls, called)
+	}
+}
+
+func TestControlForwardServiceCommandReturnsLastNotFoundWhenAllMissing(t *testing.T) {
+	bases := []string{"12_34_56"}
+	handled, lastNotFoundErr, err := controlForwardServiceCommand(bases, "PauseService", func(name string) error {
+		return errors.New("service " + name + " not found")
+	})
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if handled {
+		t.Fatalf("expected handled=false")
+	}
+	if lastNotFoundErr == nil {
+		t.Fatalf("expected lastNotFoundErr when all variants are missing")
+	}
+}
+
+func TestDeleteForwardServiceCandidatesSkipsNotFoundUntilLegacyMatch(t *testing.T) {
+	bases := []string{"12_34_56", "12_34_0"}
+	called := make([]string, 0)
+	err := deleteForwardServiceCandidates(bases, func(name string) error {
+		called = append(called, name)
+		if name == "12_34_0" {
+			return nil
+		}
+		return errors.New("service " + name + " not found")
+	})
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	wantCalls := []string{"12_34_56_tcp", "12_34_56_udp", "12_34_56", "12_34_0_tcp", "12_34_0_udp", "12_34_0"}
+	if !reflect.DeepEqual(called, wantCalls) {
+		t.Fatalf("expected calls %v, got %v", wantCalls, called)
+	}
+}
+
+func TestDeleteForwardServiceCandidatesTreatsAllMissingAsSuccess(t *testing.T) {
+	bases := []string{"12_34_56", "12_34_0"}
+	err := deleteForwardServiceCandidates(bases, func(name string) error {
+		return errors.New("service " + name + " not found")
+	})
+	if err != nil {
+		t.Fatalf("all-missing delete should be tolerated, got %v", err)
+	}
+}
+
+func TestForwardServiceBaseCandidatesIncludesResolvedAndLegacyZero(t *testing.T) {
+	bases := buildForwardServiceBaseCandidates(46, 9, 123, []int64{123, 77, 0})
+	want := []string{"46_9_123", "46_9_77", "46_9_0"}
+	if !reflect.DeepEqual(bases, want) {
+		t.Fatalf("expected %v, got %v", want, bases)
+	}
+}
+
+func TestDeleteForwardServiceBasesOnNodeRetriesLegacyZeroResidue(t *testing.T) {
+	bases := []string{"46_9_123", "46_9_0"}
+	called := make([]string, 0)
+	err := deleteForwardServiceCandidates(bases, func(name string) error {
+		called = append(called, name)
+		if name == "46_9_0_tcp" || name == "46_9_0_udp" {
+			return nil
+		}
+		return errors.New("service " + name + " not found")
+	})
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	want := []string{"46_9_123_tcp", "46_9_123_udp", "46_9_123", "46_9_0_tcp", "46_9_0_udp", "46_9_0"}
+	if !reflect.DeepEqual(called, want) {
+		t.Fatalf("expected calls %v, got %v", want, called)
+	}
+}
+
+func TestDeleteForwardServiceCandidatesDeletesAllMatchingVariants(t *testing.T) {
+	bases := []string{"57_7_7", "57_7_0"}
+	called := make([]string, 0)
+	err := deleteForwardServiceCandidates(bases, func(name string) error {
+		called = append(called, name)
+		switch name {
+		case "57_7_7_tcp", "57_7_7_udp", "57_7_0_tcp", "57_7_0_udp":
+			return nil
+		default:
+			return errors.New("service " + name + " not found")
+		}
+	})
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	want := []string{"57_7_7_tcp", "57_7_7_udp", "57_7_7", "57_7_0_tcp", "57_7_0_udp", "57_7_0"}
+	if !reflect.DeepEqual(called, want) {
+		t.Fatalf("expected calls %v, got %v", want, called)
+	}
+}
+
+func TestValidateForwardPortAvailabilityRejectsOtherForwardOccupancy(t *testing.T) {
+	h := &Handler{repo: nil}
+	node := &nodeRecord{ID: 9, Name: "test-node"}
+	_ = h
+	_ = node
+
+	rawRepo, err := repo.Open(":memory:")
+	if err != nil {
+		t.Fatalf("open repo: %v", err)
+	}
+	h = &Handler{repo: rawRepo}
+	if err := rawRepo.DB().Exec(`INSERT INTO forward_port(forward_id, node_id, port) VALUES(1, 9, 2000)`).Error; err != nil {
+		t.Fatalf("insert forward port: %v", err)
+	}
+
+	err = h.validateForwardPortAvailability(&nodeRecord{ID: 9, Name: "test-node"}, 2000, 2)
+	if err == nil {
+		t.Fatalf("expected occupancy error")
+	}
+	if err.Error() != "节点 test-node 端口 2000 已被其他转发占用" {
+		t.Fatalf("unexpected error: %v", err)
+	}
+
+	err = h.validateForwardPortAvailability(&nodeRecord{ID: 9, Name: "test-node"}, 2000, 1)
+	if err != nil {
+		t.Fatalf("same forward should be allowed, got %v", err)
+	}
+}
+
+func TestControlForwardServiceCommandReturnsHardError(t *testing.T) {
+	bases := []string{"12_34_56"}
+	handled, lastNotFoundErr, err := controlForwardServiceCommand(bases, "PauseService", func(name string) error {
+		if name == "12_34_56_tcp" {
+			return errors.New("network timeout")
+		}
+		return nil
+	})
+	if err == nil {
+		t.Fatalf("expected hard error")
+	}
+	if handled {
+		t.Fatalf("expected handled=false on hard error")
+	}
+	if lastNotFoundErr != nil {
+		t.Fatalf("did not expect not-found error alongside hard error")
+	}
+}
+
+func TestIsAlreadyExistsMessage(t *testing.T) {
+	if !isAlreadyExistsMessage("service demo already exists") {
+		t.Fatalf("expected already exists message to be tolerated")
+	}
+	if !isAlreadyExistsMessage("服务已存在") {
+		t.Fatalf("expected Chinese already exists message to be tolerated")
+	}
+	if !isAlreadyExistsMessage("service demo alreadyexists") {
+		t.Fatalf("missing-space alreadyexists should be tolerated")
+	}
+	if isAlreadyExistsMessage("listen tcp [::]:10001: bind: address already in use") {
+		t.Fatalf("address already in use must not be treated as already exists")
+	}
+	if isAlreadyExistsMessage("create service 57_7_7_tcp failed: listen tcp4 0.0.0.0:46222: bind: address alreadyin use") {
+		t.Fatalf("alreadyin-use variant must not be treated as already exists")
+	}
+}
+
+func TestIsBindAddressInUseError(t *testing.T) {
+	if !isBindAddressInUseError(errors.New("listen tcp [::]:10001: bind: address already in use")) {
+		t.Fatalf("address already in use should be detected")
+	}
+	if !isBindAddressInUseError(errors.New("listen tcp4 13.228.170.187:16765: bind: cannot assign requested address")) {
+		t.Fatalf("cannot assign requested address should be detected")
+	}
+	if isBindAddressInUseError(errors.New("service demo already exists")) {
+		t.Fatalf("already exists should not be treated as bind conflict")
+	}
+	if isBindAddressInUseError(nil) {
+		t.Fatalf("nil error should not be treated as bind conflict")
+	}
+}
+
+func TestIsAddressAlreadyInUseError(t *testing.T) {
+	if !isAddressAlreadyInUseError(errors.New("listen tcp [::]:10001: bind: address already in use")) {
+		t.Fatalf("address already in use should be detected")
+	}
+	if !isAddressAlreadyInUseError(errors.New("create service 57_7_7_tcp failed: listen tcp4 0.0.0.0:46222: bind: address alreadyin use")) {
+		t.Fatalf("missing-space alreadyin-use variant should be detected")
+	}
+	if isAddressAlreadyInUseError(errors.New("listen tcp4 13.228.170.187:16765: bind: cannot assign requested address")) {
+		t.Fatalf("cannot assign requested address should not be treated as address-in-use")
+	}
+}
+
+func TestIsCannotAssignRequestedAddressError(t *testing.T) {
+	if !isCannotAssignRequestedAddressError(errors.New("listen tcp4 13.228.170.187:16765: bind: cannot assign requested address")) {
+		t.Fatalf("cannot assign requested address should be detected")
+	}
+	if !isCannotAssignRequestedAddressError(errors.New("listen tcp4 13.228.170.187:16765: bind: cannotassignrequestedaddress")) {
+		t.Fatalf("missing-space cannotassignrequestedaddress variant should be detected")
+	}
+	if isCannotAssignRequestedAddressError(errors.New("listen tcp [::]:10001: bind: address already in use")) {
+		t.Fatalf("address already in use should not be treated as cannot-assign")
+	}
+}
+
+func TestRetryTunnelServiceAddWithCleanupRetriesOnAddressInUse(t *testing.T) {
+	addCalls := 0
+	cleanupCalls := 0
+	err := retryTunnelServiceAddWithCleanup(
+		func() error {
+			addCalls++
+			if addCalls == 1 {
+				return errors.New("listen tcp 10.0.0.1:32000: bind: address already in use")
+			}
+			return nil
+		},
+		func() error {
+			cleanupCalls++
+			return nil
+		},
+		0,
+	)
+	if err != nil {
+		t.Fatalf("expected retry to succeed, got %v", err)
+	}
+	if addCalls != 2 {
+		t.Fatalf("expected 2 add attempts, got %d", addCalls)
+	}
+	if cleanupCalls != 1 {
+		t.Fatalf("expected 1 cleanup attempt, got %d", cleanupCalls)
+	}
+}
+
+func TestRetryTunnelServiceAddWithCleanupSkipsCleanupOnNonBindError(t *testing.T) {
+	addCalls := 0
+	cleanupCalls := 0
+	err := retryTunnelServiceAddWithCleanup(
+		func() error {
+			addCalls++
+			return errors.New("network timeout")
+		},
+		func() error {
+			cleanupCalls++
+			return nil
+		},
+		0,
+	)
+	if err == nil {
+		t.Fatalf("expected hard error")
+	}
+	if addCalls != 1 {
+		t.Fatalf("expected 1 add attempt, got %d", addCalls)
+	}
+	if cleanupCalls != 0 {
+		t.Fatalf("expected 0 cleanup attempts, got %d", cleanupCalls)
+	}
+}
+
+func TestRetryTunnelServiceAddWithCleanupReturnsCleanupError(t *testing.T) {
+	cleanupErr := errors.New("delete failed")
+	err := retryTunnelServiceAddWithCleanup(
+		func() error {
+			return errors.New("listen tcp 10.0.0.1:32000: bind: address already in use")
+		},
+		func() error {
+			return cleanupErr
+		},
+		0,
+	)
+	if !errors.Is(err, cleanupErr) {
+		t.Fatalf("expected cleanup error %v, got %v", cleanupErr, err)
+	}
+}
+
+func TestBuildForwardServiceConfigs_UsesBindIPForListen(t *testing.T) {
+	forward := &forwardRecord{RemoteAddr: "1.2.3.4:80", Strategy: "fifo", TunnelID: 7}
+	node := &nodeRecord{TCPListenAddr: "[::]", UDPListenAddr: "[::]"}
+	services := buildForwardServiceConfigs("1_2_0", forward, nil, node, 22000, "10.9.8.7", nil, false)
+	if len(services) != 2 {
+		t.Fatalf("expected 2 services, got %d", len(services))
+	}
+	for _, svc := range services {
+		addr, _ := svc["addr"].(string)
+		if addr != "10.9.8.7:22000" {
+			t.Fatalf("expected bind IP address 10.9.8.7:22000, got %q", addr)
+		}
+	}
+}
+
+func TestBuildForwardServiceConfigs_DefaultListenAddrWhenBindIPEmpty(t *testing.T) {
+	forward := &forwardRecord{RemoteAddr: "1.2.3.4:80", Strategy: "fifo", TunnelID: 7}
+	node := &nodeRecord{TCPListenAddr: "0.0.0.0", UDPListenAddr: "[::]"}
+	services := buildForwardServiceConfigs("1_2_0", forward, nil, node, 22001, "", nil, false)
+	if len(services) != 2 {
+		t.Fatalf("expected 2 services, got %d", len(services))
+	}
+	tcpAddr, _ := services[0]["addr"].(string)
+	udpAddr, _ := services[1]["addr"].(string)
+	if tcpAddr != "0.0.0.0:22001" {
+		t.Fatalf("expected tcp addr 0.0.0.0:22001, got %q", tcpAddr)
+	}
+	if udpAddr != "[::]:22001" {
+		t.Fatalf("expected udp addr [::]:22001, got %q", udpAddr)
+	}
+}
+func TestBuildForwardServiceConfigs_BindIPAlreadyContainsPort(t *testing.T) {
+	forward := &forwardRecord{RemoteAddr: "1.2.3.4:80", Strategy: "fifo", TunnelID: 7}
+	node := &nodeRecord{TCPListenAddr: "[::]", UDPListenAddr: "[::]"}
+	services := buildForwardServiceConfigs("1_2_0", forward, nil, node, 55555, "3.3.3.3:12345", nil, false)
+	if len(services) != 2 {
+		t.Fatalf("expected 2 services, got %d", len(services))
+	}
+	for _, svc := range services {
+		addr, _ := svc["addr"].(string)
+		if addr != "3.3.3.3:12345" {
+			t.Fatalf("expected bind IP with port 3.3.3.3:12345, got %q", addr)
+		}
+	}
+}
+
+func TestProcessServerAddress_StripsURLSchemeAndPath(t *testing.T) {
+	tests := []struct {
+		name string
+		in   string
+		want string
+	}{
+		{
+			name: "https with path",
+			in:   "https://panel.example.com:8443/api/v1",
+			want: "panel.example.com:8443",
+		},
+		{
+			name: "wss with query",
+			in:   "wss://panel.example.com:443/system-info?x=1",
+			want: "panel.example.com:443",
+		},
+		{
+			name: "http without port",
+			in:   "http://panel.example.com",
+			want: "panel.example.com",
+		},
+		{
+			name: "manual host with trailing path",
+			in:   "panel.example.com:8080/path",
+			want: "panel.example.com:8080",
+		},
+	}
+
+	for _, tt := range tests {
+		if got := processServerAddress(tt.in); got != tt.want {
+			t.Fatalf("%s: expected %q, got %q", tt.name, tt.want, got)
+		}
+	}
+}
+
+func TestProcessServerAddress_NormalizesIPv6(t *testing.T) {
+	tests := []struct {
+		name string
+		in   string
+		want string
+	}{
+		{
+			name: "ipv6 host only",
+			in:   "2001:db8::1",
+			want: "[2001:db8::1]",
+		},
+		{
+			name: "ipv6 host and port",
+			in:   "https://[2001:db8::1]:8443/path",
+			want: "[2001:db8::1]:8443",
+		},
+		{
+			name: "already bracketed",
+			in:   "[2001:db8::2]:9000",
+			want: "[2001:db8::2]:9000",
+		},
+	}
+
+	for _, tt := range tests {
+		if got := processServerAddress(tt.in); got != tt.want {
+			t.Fatalf("%s: expected %q, got %q", tt.name, tt.want, got)
+		}
+	}
+}
@@ -0,0 +1,209 @@
+package handler
+
+import (
+	"context"
+	"encoding/json"
+	"errors"
+	"net/http"
+	"strings"
+	"time"
+
+	"go-backend/internal/http/response"
+)
+
+type diagnosisStreamEvent struct {
+	Type string      `json:"type"`
+	Data interface{} `json:"data,omitempty"`
+	TS   int64       `json:"ts"`
+}
+
+func prepareDiagnosisStreamResponse(w http.ResponseWriter) (http.Flusher, error) {
+	flusher, ok := w.(http.Flusher)
+	if !ok {
+		return nil, errors.New("当前服务不支持流式响应")
+	}
+	w.Header().Set("Content-Type", "application/x-ndjson; charset=utf-8")
+	w.Header().Set("Cache-Control", "no-cache")
+	w.Header().Set("Connection", "keep-alive")
+	w.Header().Set("X-Accel-Buffering", "no")
+	return flusher, nil
+}
+
+func writeDiagnosisStreamEvent(encoder *json.Encoder, flusher http.Flusher, eventType string, data interface{}) error {
+	if encoder == nil || flusher == nil {
+		return errors.New("流式响应写入器未初始化")
+	}
+	event := diagnosisStreamEvent{Type: eventType, Data: data, TS: time.Now().UnixMilli()}
+	if err := encoder.Encode(event); err != nil {
+		return err
+	}
+	flusher.Flush()
+	return nil
+}
+
+func summarizeDiagnosisProgress(results []map[string]interface{}) diagnosisProgress {
+	progress := diagnosisProgress{Total: len(results)}
+	for _, item := range results {
+		progress.Completed++
+		if asBool(item["success"], false) {
+			progress.Success++
+		} else {
+			progress.Failed++
+		}
+	}
+	return progress
+}
+
+func shouldIgnoreDiagnosisStreamError(err error) bool {
+	if err == nil {
+		return false
+	}
+	if errors.Is(err, context.Canceled) {
+		return true
+	}
+	msg := strings.ToLower(strings.TrimSpace(err.Error()))
+	if strings.Contains(msg, "broken pipe") || strings.Contains(msg, "connection reset by peer") {
+		return true
+	}
+	if strings.Contains(msg, "stream already closed") {
+		return true
+	}
+	return false
+}
+
+func (h *Handler) streamDiagnosisRuntime(ctx context.Context, cancel context.CancelFunc, w http.ResponseWriter, startPayload map[string]interface{}, workItems []diagnosisWorkItem) error {
+	flusher, err := prepareDiagnosisStreamResponse(w)
+	if err != nil {
+		return err
+	}
+	encoder := json.NewEncoder(w)
+
+	payload := map[string]interface{}{
+		"total":     len(workItems),
+		"timestamp": time.Now().UnixMilli(),
+		"items":     h.buildDiagnosisStreamStartItems(workItems),
+	}
+	for key, value := range startPayload {
+		payload[key] = value
+	}
+	if err := writeDiagnosisStreamEvent(encoder, flusher, "start", payload); err != nil {
+		return err
+	}
+
+	streamBroken := false
+	emitter := func(index int, item map[string]interface{}, progress diagnosisProgress) {
+		if streamBroken {
+			return
+		}
+		itemPayload := map[string]interface{}{
+			"index":    index,
+			"result":   item,
+			"progress": progress,
+		}
+		if err := writeDiagnosisStreamEvent(encoder, flusher, "item", itemPayload); err != nil {
+			streamBroken = true
+			if cancel != nil {
+				cancel()
+			}
+		}
+	}
+
+	results := h.runDiagnosisWorkItems(ctx, workItems, emitter)
+	if streamBroken {
+		return context.Canceled
+	}
+
+	progress := summarizeDiagnosisProgress(results)
+	donePayload := map[string]interface{}{
+		"progress": progress,
+		"timedOut": errors.Is(ctx.Err(), context.DeadlineExceeded),
+	}
+	return writeDiagnosisStreamEvent(encoder, flusher, "done", donePayload)
+}
+
+func (h *Handler) tunnelDiagnoseStream(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodPost {
+		response.WriteJSON(w, response.ErrDefault("请求失败"))
+		return
+	}
+	id := asInt64FromBodyKey(r, w, "tunnelId")
+	if id <= 0 {
+		return
+	}
+
+	tunnelName, tunnelType, workItems, err := h.prepareTunnelDiagnosis(id)
+	if err != nil {
+		if strings.Contains(err.Error(), "不存在") || strings.Contains(err.Error(), "不完整") {
+			response.WriteJSON(w, response.ErrDefault(err.Error()))
+			return
+		}
+		response.WriteJSON(w, response.Err(-2, err.Error()))
+		return
+	}
+
+	ctx, cancel := context.WithTimeout(r.Context(), diagnosisRequestTimeout)
+	defer cancel()
+
+	startPayload := map[string]interface{}{
+		"tunnelName": tunnelName,
+		"tunnelType": tunnelType,
+	}
+	if err := h.streamDiagnosisRuntime(ctx, cancel, w, startPayload, workItems); err != nil {
+		if shouldIgnoreDiagnosisStreamError(err) {
+			return
+		}
+		if strings.Contains(err.Error(), "不支持流式响应") {
+			response.WriteJSON(w, response.ErrDefault(err.Error()))
+			return
+		}
+		return
+	}
+}
+
+func (h *Handler) forwardDiagnoseStream(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodPost {
+		response.WriteJSON(w, response.ErrDefault("请求失败"))
+		return
+	}
+	id := asInt64FromBodyKey(r, w, "forwardId")
+	if id <= 0 {
+		return
+	}
+
+	forward, _, _, err := h.resolveForwardAccess(r, id)
+	if err != nil {
+		if errors.Is(err, errForwardNotFound) {
+			response.WriteJSON(w, response.ErrDefault("转发不存在"))
+			return
+		}
+		response.WriteJSON(w, response.Err(-2, err.Error()))
+		return
+	}
+
+	forwardName, workItems, err := h.prepareForwardDiagnosis(forward)
+	if err != nil {
+		if strings.Contains(err.Error(), "不存在") || strings.Contains(err.Error(), "不能为空") || strings.Contains(err.Error(), "错误") {
+			response.WriteJSON(w, response.ErrDefault(err.Error()))
+			return
+		}
+		response.WriteJSON(w, response.Err(-2, err.Error()))
+		return
+	}
+
+	ctx, cancel := context.WithTimeout(r.Context(), diagnosisRequestTimeout)
+	defer cancel()
+
+	startPayload := map[string]interface{}{
+		"forwardName": forwardName,
+	}
+	if err := h.streamDiagnosisRuntime(ctx, cancel, w, startPayload, workItems); err != nil {
+		if shouldIgnoreDiagnosisStreamError(err) {
+			return
+		}
+		if strings.Contains(err.Error(), "不支持流式响应") {
+			response.WriteJSON(w, response.ErrDefault(err.Error()))
+			return
+		}
+		return
+	}
+}
@@ -8,9 +8,64 @@ import (
 // nodeSupportsV4 / nodeSupportsV6
 // ---------------------------------------------------------------------------

-func TestNodeSupportsV4_Nil(t *testing.T) {
-	if nodeSupportsV4(nil) {
-		t.Fatal("nil node must not support v4")
+func TestSelectTunnelDialHost_ConnectIpPriority(t *testing.T) {
+	from := dualStackNode("from", "10.0.0.1", "2001:db8::1")
+	to := dualStackNode("to", "10.0.0.2", "2001:db8::2")
+
+	// Empty connectIp should be ignored, IP preference takes effect
+	host, err := selectTunnelDialHost(from, to, "", "")
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if host != "10.0.0.2" {
+		t.Fatalf("empty connectIp should be ignored (v4 preference applies), got %q", host)
+	}
+	// Non-empty connectIp should override IP preference
+	host, err = selectTunnelDialHost(from, to, "v6", "192.168.0.3")
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if host != "192.168.0.3" {
+		t.Fatalf("connectIp should override v6 preference, got %q", host)
+	}
+}
+
+func TestBuildTunnelChainServiceConfig_UsesConnectIPForListen(t *testing.T) {
+	node := &nodeRecord{TCPListenAddr: "[::]"}
+	chain := tunnelRuntimeNode{Protocol: "tls", Port: 21000, ConnectIP: "2001:db8::88"}
+	services := buildTunnelChainServiceConfig(99, chain, node)
+	if len(services) != 1 {
+		t.Fatalf("expected 1 service, got %d", len(services))
+	}
+	addr, _ := services[0]["addr"].(string)
+	if addr != "[2001:db8::88]:21000" {
+		t.Fatalf("expected connectIp listen [2001:db8::88]:21000, got %q", addr)
+	}
+}
+
+func TestBuildTunnelChainServiceConfig_FallsBackToNodeListenAddr(t *testing.T) {
+	node := &nodeRecord{TCPListenAddr: "10.8.0.5"}
+	chain := tunnelRuntimeNode{Protocol: "tls", Port: 21002}
+	services := buildTunnelChainServiceConfig(99, chain, node)
+	if len(services) != 1 {
+		t.Fatalf("expected 1 service, got %d", len(services))
+	}
+	addr, _ := services[0]["addr"].(string)
+	if addr != "10.8.0.5:21002" {
+		t.Fatalf("expected node listen addr 10.8.0.5:21002, got %q", addr)
+	}
+}
+
+func TestBuildTunnelChainServiceConfig_DefaultListenAddrWhenConnectIPEmpty(t *testing.T) {
+	node := &nodeRecord{TCPListenAddr: "[::]"}
+	chain := tunnelRuntimeNode{Protocol: "tls", Port: 21001}
+	services := buildTunnelChainServiceConfig(99, chain, node)
+	if len(services) != 1 {
+		t.Fatalf("expected 1 service, got %d", len(services))
+	}
+	addr, _ := services[0]["addr"].(string)
+	if addr != "[::]:21001" {
+		t.Fatalf("expected default listen [::]:21001, got %q", addr)
 	}
 }

@@ -23,14 +78,14 @@ func TestNodeSupportsV6_Nil(t *testing.T) {
 func TestNodeSupportsV4_ExplicitV4(t *testing.T) {
 	n := &nodeRecord{ServerIPv4: "10.0.0.1"}
 	if !nodeSupportsV4(n) {
-		t.Fatal("explicit server_ip_v4 must support v4")
+		t.Fatal("explicit server_ip_v4 needs support v4")
 	}
 }

 func TestNodeSupportsV6_ExplicitV6(t *testing.T) {
 	n := &nodeRecord{ServerIPv6: "2001:db8::1"}
 	if !nodeSupportsV6(n) {
-		t.Fatal("explicit server_ip_v6 must support v6")
+		t.Fatal("explicit server_ip_v6 needs support v6")
 	}
 }

@@ -68,7 +123,7 @@ func TestNodeSupportsV4_LegacyV4Only(t *testing.T) {
 		t.Fatal("legacy v4 ip in server_ip must support v4")
 	}
 	if nodeSupportsV6(n) {
-		t.Fatal("legacy v4 ip in server_ip must not support v6")
+		t.Fatal("legacy v4 ip in server_ip should not support v6")
 	}
 }

@@ -78,7 +133,7 @@ func TestNodeSupportsV6_LegacyV6Only(t *testing.T) {
 		t.Fatal("legacy v6 ip in server_ip must support v6")
 	}
 	if nodeSupportsV4(n) {
-		t.Fatal("legacy v6 ip in server_ip must not support v4")
+		t.Fatal("legacy v6 ip in server_ip should not support v4")
 	}
 }

@@ -177,15 +232,15 @@ func v6OnlyNode(name, v6 string) *nodeRecord {
 }

 func TestSelectTunnelDialHost_NilNodes(t *testing.T) {
-	_, err := selectTunnelDialHost(nil, nil, "")
+	_, err := selectTunnelDialHost(nil, nil, "", "")
 	if err == nil {
 		t.Fatal("expected error for nil nodes")
 	}
-	_, err = selectTunnelDialHost(dualStackNode("a", "1.1.1.1", "::1"), nil, "")
+	_, err = selectTunnelDialHost(dualStackNode("a", "1.1.1.1", "::1"), nil, "", "")
 	if err == nil {
 		t.Fatal("expected error for nil toNode")
 	}
-	_, err = selectTunnelDialHost(nil, dualStackNode("b", "1.1.1.1", "::1"), "")
+	_, err = selectTunnelDialHost(nil, dualStackNode("b", "1.1.1.1", "::1"), "", "")
 	if err == nil {
 		t.Fatal("expected error for nil fromNode")
 	}
@@ -194,8 +249,7 @@ func TestSelectTunnelDialHost_NilNodes(t *testing.T) {
 func TestSelectTunnelDialHost_DualStack_DefaultPreference(t *testing.T) {
 	from := dualStackNode("from", "10.0.0.1", "2001:db8::1")
 	to := dualStackNode("to", "10.0.0.2", "2001:db8::2")
-
-	host, err := selectTunnelDialHost(from, to, "")
+	host, err := selectTunnelDialHost(from, to, "", "")
 	if err != nil {
 		t.Fatalf("unexpected error: %v", err)
 	}
@@ -208,8 +262,7 @@ func TestSelectTunnelDialHost_DualStack_DefaultPreference(t *testing.T) {
 func TestSelectTunnelDialHost_DualStack_PreferV4(t *testing.T) {
 	from := dualStackNode("from", "10.0.0.1", "2001:db8::1")
 	to := dualStackNode("to", "10.0.0.2", "2001:db8::2")
-
-	host, err := selectTunnelDialHost(from, to, "v4")
+	host, err := selectTunnelDialHost(from, to, "v4", "")
 	if err != nil {
 		t.Fatalf("unexpected error: %v", err)
 	}
@@ -221,8 +274,7 @@ func TestSelectTunnelDialHost_DualStack_PreferV4(t *testing.T) {
 func TestSelectTunnelDialHost_DualStack_PreferV6(t *testing.T) {
 	from := dualStackNode("from", "10.0.0.1", "2001:db8::1")
 	to := dualStackNode("to", "10.0.0.2", "2001:db8::2")
-
-	host, err := selectTunnelDialHost(from, to, "v6")
+	host, err := selectTunnelDialHost(from, to, "v6", "")
 	if err != nil {
 		t.Fatalf("unexpected error: %v", err)
 	}
@@ -234,9 +286,8 @@ func TestSelectTunnelDialHost_DualStack_PreferV6(t *testing.T) {
 func TestSelectTunnelDialHost_V4Only_PreferV6Fallback(t *testing.T) {
 	from := v4OnlyNode("from", "10.0.0.1")
 	to := v4OnlyNode("to", "10.0.0.2")
-
 	// User prefers v6, but both nodes are v4-only — should fallback to v4
-	host, err := selectTunnelDialHost(from, to, "v6")
+	host, err := selectTunnelDialHost(from, to, "v6", "")
 	if err != nil {
 		t.Fatalf("unexpected error: %v", err)
 	}
@@ -248,9 +299,8 @@ func TestSelectTunnelDialHost_V4Only_PreferV6Fallback(t *testing.T) {
 func TestSelectTunnelDialHost_V6Only_PreferV4Fallback(t *testing.T) {
 	from := v6OnlyNode("from", "2001:db8::1")
 	to := v6OnlyNode("to", "2001:db8::2")
-
 	// User prefers v4, but both nodes are v6-only — should fallback to v6
-	host, err := selectTunnelDialHost(from, to, "v4")
+	host, err := selectTunnelDialHost(from, to, "v4", "")
 	if err != nil {
 		t.Fatalf("unexpected error: %v", err)
 	}
@@ -262,8 +312,7 @@ func TestSelectTunnelDialHost_V6Only_PreferV4Fallback(t *testing.T) {
 func TestSelectTunnelDialHost_Incompatible(t *testing.T) {
 	from := v4OnlyNode("from", "10.0.0.1")
 	to := v6OnlyNode("to", "2001:db8::2")
-
-	_, err := selectTunnelDialHost(from, to, "")
+	_, err := selectTunnelDialHost(from, to, "", "")
 	if err == nil {
 		t.Fatal("expected error for incompatible nodes (v4-only -> v6-only)")
 	}
@@ -272,8 +321,7 @@ func TestSelectTunnelDialHost_Incompatible(t *testing.T) {
 func TestSelectTunnelDialHost_Incompatible_Reverse(t *testing.T) {
 	from := v6OnlyNode("from", "2001:db8::1")
 	to := v4OnlyNode("to", "10.0.0.2")
-
-	_, err := selectTunnelDialHost(from, to, "")
+	_, err := selectTunnelDialHost(from, to, "", "")
 	if err == nil {
 		t.Fatal("expected error for incompatible nodes (v6-only -> v4-only)")
 	}
@@ -282,9 +330,8 @@ func TestSelectTunnelDialHost_Incompatible_Reverse(t *testing.T) {
 func TestSelectTunnelDialHost_WhitespacePreference(t *testing.T) {
 	from := dualStackNode("from", "10.0.0.1", "2001:db8::1")
 	to := dualStackNode("to", "10.0.0.2", "2001:db8::2")
-
 	// Whitespace should be trimmed, treated as "v6"
-	host, err := selectTunnelDialHost(from, to, "  v6  ")
+	host, err := selectTunnelDialHost(from, to, "  v6  ", "")
 	if err != nil {
 		t.Fatalf("unexpected error: %v", err)
 	}
@@ -296,9 +343,8 @@ func TestSelectTunnelDialHost_WhitespacePreference(t *testing.T) {
 func TestSelectTunnelDialHost_MixedStack_FromDualToV4(t *testing.T) {
 	from := dualStackNode("from", "10.0.0.1", "2001:db8::1")
 	to := v4OnlyNode("to", "10.0.0.2")
-
 	// v6 preferred, but target only has v4 — should succeed with v4
-	host, err := selectTunnelDialHost(from, to, "v6")
+	host, err := selectTunnelDialHost(from, to, "v6", "")
 	if err != nil {
 		t.Fatalf("unexpected error: %v", err)
 	}
@@ -310,9 +356,8 @@ func TestSelectTunnelDialHost_MixedStack_FromDualToV4(t *testing.T) {
 func TestSelectTunnelDialHost_MixedStack_FromDualToV6(t *testing.T) {
 	from := dualStackNode("from", "10.0.0.1", "2001:db8::1")
 	to := v6OnlyNode("to", "2001:db8::2")
-
 	// v4 preferred, but target only has v6 — should succeed with v6
-	host, err := selectTunnelDialHost(from, to, "v4")
+	host, err := selectTunnelDialHost(from, to, "v4", "")
 	if err != nil {
 		t.Fatalf("unexpected error: %v", err)
 	}
@@ -324,9 +369,8 @@ func TestSelectTunnelDialHost_MixedStack_FromDualToV6(t *testing.T) {
 func TestSelectTunnelDialHost_MixedStack_FromV4ToDual(t *testing.T) {
 	from := v4OnlyNode("from", "10.0.0.1")
 	to := dualStackNode("to", "10.0.0.2", "2001:db8::2")
-
 	// v6 preferred, but from only has v4 — should use v4 (from can only reach v4 of target)
-	host, err := selectTunnelDialHost(from, to, "v6")
+	host, err := selectTunnelDialHost(from, to, "v6", "")
 	if err != nil {
 		t.Fatalf("unexpected error: %v", err)
 	}
@@ -338,9 +382,8 @@ func TestSelectTunnelDialHost_MixedStack_FromV4ToDual(t *testing.T) {
 func TestSelectTunnelDialHost_MixedStack_FromV6ToDual(t *testing.T) {
 	from := v6OnlyNode("from", "2001:db8::1")
 	to := dualStackNode("to", "10.0.0.2", "2001:db8::2")
-
 	// v4 preferred, but from only has v6 — should use v6
-	host, err := selectTunnelDialHost(from, to, "v4")
+	host, err := selectTunnelDialHost(from, to, "v4", "")
 	if err != nil {
 		t.Fatalf("unexpected error: %v", err)
 	}
@@ -367,7 +410,6 @@ func TestNodeDisplayName_Named(t *testing.T) {
 		t.Fatalf("expected 'hk-node', got %q", got)
 	}
 }
-
 func TestNodeDisplayName_Unnamed(t *testing.T) {
 	n := &nodeRecord{ID: 42}
 	got := nodeDisplayName(n)
@@ -477,9 +477,14 @@ func (h *Handler) federationRemoteUsageList(w http.ResponseWriter, r *http.Reque
 			response.WriteJSON(w, response.Err(-2, err.Error()))
 			return
 		}
+		forwardPortRows, err := h.repo.ListActiveForwardPortsForNode(nodeID)
+		if err != nil {
+			response.WriteJSON(w, response.Err(-2, err.Error()))
+			return
+		}

 		usedSet := make(map[int]struct{})
-		bindings := make([]remoteUsageBindingItem, 0, len(bindingRows))
+		bindings := make([]remoteUsageBindingItem, 0, len(bindingRows)+len(forwardPortRows))
 		for _, b := range bindingRows {
 			bindings = append(bindings, remoteUsageBindingItem{
 				BindingID:       b.ID,
@@ -496,6 +501,29 @@ func (h *Handler) federationRemoteUsageList(w http.ResponseWriter, r *http.Reque
 				usedSet[b.AllocatedPort] = struct{}{}
 			}
 		}
+		for _, fp := range forwardPortRows {
+			bindings = append(bindings, remoteUsageBindingItem{
+				BindingID:       -fp.ForwardID,
+				TunnelID:        fp.TunnelID,
+				TunnelName:      fp.TunnelName,
+				ChainType:       1,
+				HopInx:          0,
+				AllocatedPort:   fp.Port,
+				ResourceKey:     fmt.Sprintf("forward:%d", fp.ForwardID),
+				RemoteBindingID: "",
+				UpdatedTime:     fp.UpdatedTime,
+			})
+			if fp.Port > 0 {
+				usedSet[fp.Port] = struct{}{}
+			}
+		}
+
+		sort.Slice(bindings, func(i, j int) bool {
+			if bindings[i].AllocatedPort == bindings[j].AllocatedPort {
+				return bindings[i].BindingID < bindings[j].BindingID
+			}
+			return bindings[i].AllocatedPort < bindings[j].AllocatedPort
+		})

 		usedPorts := make([]int, 0, len(usedSet))
 		for port := range usedSet {
@@ -766,6 +794,37 @@ func (h *Handler) federationTunnelCreate(w http.ResponseWriter, r *http.Request)
 		return
 	}

+	usedPorts, err := h.repo.ListUsedPortsOnNode(share.NodeID)
+	if err != nil {
+		response.WriteJSON(w, response.Err(-2, err.Error()))
+		return
+	}
+	for _, port := range usedPorts {
+		if port == req.RemotePort {
+			response.WriteJSON(w, response.Err(403, "Port already in use"))
+			return
+		}
+	}
+
+	runtimeOnPort, err := h.repo.GetActiveForwardPeerShareRuntimeByPort(share.ID, req.RemotePort)
+	if err != nil {
+		response.WriteJSON(w, response.Err(-2, err.Error()))
+		return
+	}
+	if runtimeOnPort != nil {
+		response.WriteJSON(w, response.Err(403, "Port already in use"))
+		return
+	}
+	existsOnNodePort, err := h.repo.ExistsActivePeerShareRuntimeOnNodePort(share.NodeID, req.RemotePort)
+	if err != nil {
+		response.WriteJSON(w, response.Err(-2, err.Error()))
+		return
+	}
+	if existsOnNodePort {
+		response.WriteJSON(w, response.Err(403, "Port already in use"))
+		return
+	}
+
 	now := time.Now().UnixMilli()
 	tunnelID, err := h.repo.CreateFederationTunnel(
 		fmt.Sprintf("Share-%d-Port-%d", share.ID, req.RemotePort),
@@ -780,6 +839,30 @@ func (h *Handler) federationTunnelCreate(w http.ResponseWriter, r *http.Request)
 		return
 	}

+	runtime := &repo.PeerShareRuntime{
+		ShareID:       share.ID,
+		NodeID:        share.NodeID,
+		ReservationID: randomToken(24),
+		ResourceKey:   fmt.Sprintf("federation-forward-%d-%d-%d", share.ID, tunnelID, req.RemotePort),
+		BindingID:     "",
+		Role:          "forward",
+		ChainName:     "",
+		ServiceName:   "",
+		Protocol:      defaultString(req.Protocol, "tcp"),
+		Strategy:      "fifo",
+		Port:          req.RemotePort,
+		Target:        strings.TrimSpace(req.Target),
+		Applied:       0,
+		Status:        1,
+		CreatedTime:   now,
+		UpdatedTime:   now,
+	}
+	if err := h.repo.CreatePeerShareRuntime(runtime); err != nil {
+		_ = h.deleteTunnelByID(tunnelID)
+		response.WriteJSON(w, response.Err(-2, err.Error()))
+		return
+	}
+
 	h.wsServer.SendCommand(share.NodeID, "reload", nil, time.Second*5)

 	response.WriteJSON(w, response.OK(map[string]interface{}{
@@ -1149,16 +1232,20 @@ func (h *Handler) federationRuntimeDiagnose(w http.ResponseWriter, r *http.Reque
 	if req.Count <= 0 {
 		req.Count = 4
 	}
-	if req.Timeout <= 0 {
-		req.Timeout = 5000
+	if req.Timeout <= 0 || req.Timeout > int(diagnosisCommandTimeout/time.Millisecond) {
+		req.Timeout = int(diagnosisCommandTimeout / time.Millisecond)
+	}
+	commandTimeout := time.Duration(req.Timeout) * time.Millisecond
+	if commandTimeout <= 0 || commandTimeout > diagnosisCommandTimeout {
+		commandTimeout = diagnosisCommandTimeout
 	}

-	res, err := h.sendNodeCommand(share.NodeID, "TcpPing", map[string]interface{}{
+	res, err := h.sendNodeCommandWithTimeout(share.NodeID, "TcpPing", map[string]interface{}{
 		"ip":      req.IP,
 		"port":    req.Port,
 		"count":   req.Count,
 		"timeout": req.Timeout,
-	}, false, false)
+	}, commandTimeout, false, false)
 	if err != nil {
 		response.WriteJSON(w, response.ErrDefault(err.Error()))
 		return
@@ -1211,12 +1298,185 @@ func (h *Handler) federationRuntimeCommand(w http.ResponseWriter, r *http.Reques
 		response.WriteJSON(w, response.ErrDefault(err.Error()))
 		return
 	}
+	if strings.EqualFold(cmd, "addservice") || strings.EqualFold(cmd, "updateservice") {
+		h.bindPeerShareForwardRuntimeServices(share, req.Data)
+	} else if strings.EqualFold(cmd, "deleteservice") {
+		h.releasePeerShareForwardRuntimeServices(share, req.Data)
+	}
 	response.WriteJSON(w, response.OK(res))
 }

+type federationForwardServiceBinding struct {
+	Name string
+	Port int
+}
+
+func extractFederationServiceEntries(data interface{}) []map[string]interface{} {
+	if data == nil {
+		return nil
+	}
+
+	if entries := asMapSlice(data); len(entries) > 0 {
+		return entries
+	}
+
+	dataMap, ok := data.(map[string]interface{})
+	if !ok {
+		return nil
+	}
+
+	if entries := asMapSlice(dataMap["services"]); len(entries) > 0 {
+		return entries
+	}
+
+	return nil
+}
+
+func parseFederationForwardServiceBindings(data interface{}) []federationForwardServiceBinding {
+	serviceList := extractFederationServiceEntries(data)
+	bindings := make([]federationForwardServiceBinding, 0, len(serviceList))
+	for _, svcMap := range serviceList {
+		name := normalizeForwardRuntimeServiceName(asString(svcMap["name"]))
+		if name == "" {
+			continue
+		}
+		if _, _, _, ok := parseFlowServiceIDs(name); !ok {
+			continue
+		}
+		addr := strings.TrimSpace(asString(svcMap["addr"]))
+		if addr == "" {
+			continue
+		}
+		_, portStr, err := net.SplitHostPort(addr)
+		if err != nil {
+			continue
+		}
+		port, err := strconv.Atoi(portStr)
+		if err != nil || port <= 0 {
+			continue
+		}
+		bindings = append(bindings, federationForwardServiceBinding{Name: name, Port: port})
+	}
+	return bindings
+}
+
+func parseFederationForwardServiceNamesForRelease(data interface{}) []string {
+	names := make(map[string]struct{})
+	appendName := func(raw string) {
+		name := normalizeForwardRuntimeServiceName(raw)
+		if name == "" {
+			return
+		}
+		if _, _, _, ok := parseFlowServiceIDs(name); !ok {
+			return
+		}
+		names[name] = struct{}{}
+	}
+
+	for _, svcMap := range extractFederationServiceEntries(data) {
+		appendName(asString(svcMap["name"]))
+	}
+
+	if dataMap, ok := data.(map[string]interface{}); ok {
+		for _, item := range asAnySlice(dataMap["services"]) {
+			appendName(asString(item))
+		}
+	}
+
+	for _, item := range asAnySlice(data) {
+		appendName(asString(item))
+	}
+
+	if len(names) == 0 {
+		return nil
+	}
+
+	out := make([]string, 0, len(names))
+	for name := range names {
+		out = append(out, name)
+	}
+	sort.Strings(out)
+	return out
+}
+
+func (h *Handler) bindPeerShareForwardRuntimeServices(share *repo.PeerShare, data interface{}) {
+	if h == nil || h.repo == nil || share == nil {
+		return
+	}
+	bindings := parseFederationForwardServiceBindings(data)
+	if len(bindings) == 0 {
+		return
+	}
+
+	now := time.Now().UnixMilli()
+	for _, binding := range bindings {
+		runtime, err := h.repo.GetActiveForwardPeerShareRuntimeByPort(share.ID, binding.Port)
+		if err != nil {
+			continue
+		}
+		if runtime == nil {
+			runtime, err = h.repo.GetActiveForwardPeerShareRuntimeByServiceName(share.ID, binding.Name)
+			if err != nil {
+				continue
+			}
+		}
+		if runtime == nil {
+			_ = h.repo.CreatePeerShareRuntime(&repo.PeerShareRuntime{
+				ShareID:       share.ID,
+				NodeID:        share.NodeID,
+				ReservationID: randomToken(24),
+				ResourceKey:   fmt.Sprintf("forward-runtime:%d:%s:%d:%s", share.ID, binding.Name, binding.Port, randomToken(8)),
+				BindingID:     "",
+				Role:          "forward",
+				ChainName:     "",
+				ServiceName:   binding.Name,
+				Protocol:      "tcp",
+				Strategy:      "fifo",
+				Port:          binding.Port,
+				Target:        "",
+				Applied:       1,
+				Status:        1,
+				CreatedTime:   now,
+				UpdatedTime:   now,
+			})
+			continue
+		}
+		if runtime.ServiceName == binding.Name && runtime.Applied == 1 && runtime.Port == binding.Port && runtime.Status == 1 {
+			continue
+		}
+		runtime.ServiceName = binding.Name
+		runtime.Port = binding.Port
+		runtime.Applied = 1
+		runtime.Status = 1
+		runtime.UpdatedTime = now
+		if strings.TrimSpace(runtime.Protocol) == "" {
+			runtime.Protocol = "tcp"
+		}
+		if strings.TrimSpace(runtime.Strategy) == "" {
+			runtime.Strategy = "fifo"
+		}
+		_ = h.repo.UpdatePeerShareRuntime(runtime)
+	}
+}
+
+func (h *Handler) releasePeerShareForwardRuntimeServices(share *repo.PeerShare, data interface{}) {
+	if h == nil || h.repo == nil || share == nil {
+		return
+	}
+	names := parseFederationForwardServiceNamesForRelease(data)
+	if len(names) == 0 {
+		return
+	}
+
+	now := time.Now().UnixMilli()
+	for _, name := range names {
+		_ = h.repo.MarkForwardPeerShareRuntimeReleasedByServiceName(share.ID, name, now)
+	}
+}
+
 func isFederationRuntimeCommandAllowed(commandType string) bool {
 	switch strings.ToLower(strings.TrimSpace(commandType)) {
-	case "addservice", "updateservice", "deleteservice", "pauseservice", "resumeservice", "addchains", "deletechains", "addlimiters", "deletelimiters", "tcpping", "reload":
+	case "addservice", "updateservice", "deleteservice", "pauseservice", "resumeservice", "addchains", "deletechains", "addlimiters", "updatelimiters", "deletelimiters", "tcpping", "reload":
 		return true
 	default:
 		return false
@@ -1236,36 +1496,26 @@ func validateFederationCommandPorts(share *repo.PeerShare, data interface{}) err
 	if share == nil || (share.PortRangeStart <= 0 && share.PortRangeEnd <= 0) {
 		return nil
 	}
-	dataMap, ok := data.(map[string]interface{})
-	if !ok {
+
+	serviceList := extractFederationServiceEntries(data)
+	if len(serviceList) == 0 {
 		return nil
 	}
-
-	if services, ok := dataMap["services"]; ok {
-		serviceList, ok := services.([]interface{})
-		if !ok {
-			return fmt.Errorf("invalid services format")
+	for _, svcMap := range serviceList {
+		addr := asString(svcMap["addr"])
+		if addr == "" {
+			continue
 		}
-		for _, svc := range serviceList {
-			svcMap, ok := svc.(map[string]interface{})
-			if !ok {
-				return fmt.Errorf("invalid service entry format")
-			}
-			addr, ok := svcMap["addr"].(string)
-			if !ok || addr == "" {
-				continue
-			}
-			_, portStr, err := net.SplitHostPort(addr)
-			if err != nil {
-				return fmt.Errorf("invalid service address: %s", addr)
-			}
-			port, err := strconv.Atoi(portStr)
-			if err != nil || port <= 0 {
-				return fmt.Errorf("invalid port in service address: %s", addr)
-			}
-			if port < share.PortRangeStart || port > share.PortRangeEnd {
-				return fmt.Errorf("port %d out of allowed range %d-%d", port, share.PortRangeStart, share.PortRangeEnd)
-			}
+		_, portStr, err := net.SplitHostPort(addr)
+		if err != nil {
+			return fmt.Errorf("invalid service address: %s", addr)
+		}
+		port, err := strconv.Atoi(portStr)
+		if err != nil || port <= 0 {
+			return fmt.Errorf("invalid port in service address: %s", addr)
+		}
+		if port < share.PortRangeStart || port > share.PortRangeEnd {
+			return fmt.Errorf("port %d out of allowed range %d-%d", port, share.PortRangeStart, share.PortRangeEnd)
 		}
 	}

@@ -414,6 +414,445 @@ func TestFederationShareResetFlow(t *testing.T) {
 	}
 }

+func TestFederationTunnelCreateCreatesPeerShareRuntime(t *testing.T) {
+	r, err := repo.Open(filepath.Join(t.TempDir(), "panel.db"))
+	if err != nil {
+		t.Fatalf("open sqlite: %v", err)
+	}
+	t.Cleanup(func() { _ = r.Close() })
+
+	h := New(r, "test-jwt-secret")
+	now := time.Now().UnixMilli()
+
+	if err := r.DB().Exec(`
+		INSERT INTO node(name, secret, server_ip, server_ip_v4, server_ip_v6, port, interface_name, version, http, tls, socks, created_time, updated_time, status, tcp_listen_addr, udp_listen_addr, inx, is_remote, remote_url, remote_token, remote_config)
+		VALUES(?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+	`, "federation-forward-node", "federation-forward-secret", "10.90.80.70", "10.90.80.70", "", "24000-24020", "", "v1", 1, 1, 1, now, now, 1, "[::]", "[::]", 0, 0, "", "", "").Error; err != nil {
+		t.Fatalf("insert node: %v", err)
+	}
+	nodeID := mustLastInsertID(t, r, "federation-forward-node")
+
+	if err := r.CreatePeerShare(&repo.PeerShare{
+		Name:           "federation-forward-share",
+		NodeID:         nodeID,
+		Token:          "federation-forward-token",
+		MaxBandwidth:   0,
+		CurrentFlow:    0,
+		PortRangeStart: 24000,
+		PortRangeEnd:   24020,
+		IsActive:       1,
+		CreatedTime:    now,
+		UpdatedTime:    now,
+	}); err != nil {
+		t.Fatalf("create share: %v", err)
+	}
+	share, err := r.GetPeerShareByToken("federation-forward-token")
+	if err != nil || share == nil {
+		t.Fatalf("load share: %v", err)
+	}
+
+	body, err := json.Marshal(federationTunnelRequest{
+		Protocol:   "tcp",
+		RemotePort: 24001,
+		Target:     "1.1.1.1:443",
+	})
+	if err != nil {
+		t.Fatalf("marshal request: %v", err)
+	}
+
+	req := httptest.NewRequest(http.MethodPost, "/api/v1/federation/tunnel/create", bytes.NewReader(body))
+	req.Header.Set("Authorization", "Bearer "+share.Token)
+	req.Header.Set("Content-Type", "application/json")
+	res := httptest.NewRecorder()
+
+	h.federationTunnelCreate(res, req)
+
+	if res.Code != http.StatusOK {
+		t.Fatalf("expected status %d, got %d", http.StatusOK, res.Code)
+	}
+
+	var payload response.R
+	if err := json.NewDecoder(res.Body).Decode(&payload); err != nil {
+		t.Fatalf("decode response: %v", err)
+	}
+	if payload.Code != 0 {
+		t.Fatalf("expected response code 0, got %d (%s)", payload.Code, payload.Msg)
+	}
+
+	runtimeCount := mustQueryInt(t, r, `SELECT COUNT(1) FROM peer_share_runtime WHERE share_id = ? AND port = ? AND status = 1`, share.ID, 24001)
+	if runtimeCount != 1 {
+		t.Fatalf("expected 1 runtime row for new federation forward tunnel, got %d", runtimeCount)
+	}
+}
+
+func TestFederationTunnelCreateRejectsOccupiedPort(t *testing.T) {
+	r, err := repo.Open(filepath.Join(t.TempDir(), "panel.db"))
+	if err != nil {
+		t.Fatalf("open sqlite: %v", err)
+	}
+	t.Cleanup(func() { _ = r.Close() })
+
+	h := New(r, "test-jwt-secret")
+	now := time.Now().UnixMilli()
+
+	if err := r.DB().Exec(`
+		INSERT INTO node(name, secret, server_ip, server_ip_v4, server_ip_v6, port, interface_name, version, http, tls, socks, created_time, updated_time, status, tcp_listen_addr, udp_listen_addr, inx, is_remote, remote_url, remote_token, remote_config)
+		VALUES(?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+	`, "federation-port-check-node", "federation-port-check-secret", "10.91.80.70", "10.91.80.70", "", "24100-24120", "", "v1", 1, 1, 1, now, now, 1, "[::]", "[::]", 0, 0, "", "", "").Error; err != nil {
+		t.Fatalf("insert node: %v", err)
+	}
+	nodeID := mustLastInsertID(t, r, "federation-port-check-node")
+
+	if err := r.CreatePeerShare(&repo.PeerShare{
+		Name:           "federation-port-check-share",
+		NodeID:         nodeID,
+		Token:          "federation-port-check-token",
+		MaxBandwidth:   0,
+		CurrentFlow:    0,
+		PortRangeStart: 24100,
+		PortRangeEnd:   24120,
+		IsActive:       1,
+		CreatedTime:    now,
+		UpdatedTime:    now,
+	}); err != nil {
+		t.Fatalf("create share: %v", err)
+	}
+
+	create := func() response.R {
+		body, err := json.Marshal(federationTunnelRequest{Protocol: "tcp", RemotePort: 24101, Target: "1.1.1.1:443"})
+		if err != nil {
+			t.Fatalf("marshal request: %v", err)
+		}
+		req := httptest.NewRequest(http.MethodPost, "/api/v1/federation/tunnel/create", bytes.NewReader(body))
+		req.Header.Set("Authorization", "Bearer federation-port-check-token")
+		req.Header.Set("Content-Type", "application/json")
+		res := httptest.NewRecorder()
+		h.federationTunnelCreate(res, req)
+		if res.Code != http.StatusOK {
+			t.Fatalf("expected status %d, got %d", http.StatusOK, res.Code)
+		}
+		var payload response.R
+		if err := json.NewDecoder(res.Body).Decode(&payload); err != nil {
+			t.Fatalf("decode response: %v", err)
+		}
+		return payload
+	}
+
+	first := create()
+	if first.Code != 0 {
+		t.Fatalf("expected first create success, got %d (%s)", first.Code, first.Msg)
+	}
+
+	second := create()
+	if second.Code != 403 {
+		t.Fatalf("expected second create to be rejected with 403, got %d (%s)", second.Code, second.Msg)
+	}
+	if second.Msg != "Port already in use" {
+		t.Fatalf("expected occupied port message, got %q", second.Msg)
+	}
+}
+
+func TestDeleteTunnelReleasesFederationForwardRuntimeByPort(t *testing.T) {
+	r, err := repo.Open(filepath.Join(t.TempDir(), "panel.db"))
+	if err != nil {
+		t.Fatalf("open sqlite: %v", err)
+	}
+	t.Cleanup(func() { _ = r.Close() })
+
+	h := New(r, "test-jwt-secret")
+	now := time.Now().UnixMilli()
+
+	if err := r.CreatePeerShare(&repo.PeerShare{
+		Name:           "delete-forward-share",
+		NodeID:         1,
+		Token:          "delete-forward-token",
+		MaxBandwidth:   0,
+		CurrentFlow:    0,
+		PortRangeStart: 25000,
+		PortRangeEnd:   25020,
+		IsActive:       1,
+		CreatedTime:    now,
+		UpdatedTime:    now,
+	}); err != nil {
+		t.Fatalf("create share: %v", err)
+	}
+	share, err := r.GetPeerShareByToken("delete-forward-token")
+	if err != nil || share == nil {
+		t.Fatalf("load share: %v", err)
+	}
+
+	tunnelName := fmt.Sprintf("Share-%d-Port-%d", share.ID, 25001)
+	if err := r.DB().Exec(`
+		INSERT INTO tunnel(id, name, traffic_ratio, type, protocol, flow, created_time, updated_time, status, in_ip, inx)
+		VALUES(?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+	`, 1, tunnelName, 1.0, 1, "tcp", 1, now, now, 1, nil, 0).Error; err != nil {
+		t.Fatalf("insert tunnel: %v", err)
+	}
+
+	if err := r.DB().Exec(`
+		INSERT INTO peer_share_runtime(share_id, node_id, reservation_id, resource_key, binding_id, role, chain_name, service_name, protocol, strategy, port, target, applied, status, created_time, updated_time)
+		VALUES(?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+	`, share.ID, share.NodeID, "del-r1", "del-rk1", "", "forward", "", "20_2_10", "tcp", "fifo", 25001, "", 1, 1, now, now).Error; err != nil {
+		t.Fatalf("insert runtime: %v", err)
+	}
+
+	if err := h.deleteTunnelByID(1); err != nil {
+		t.Fatalf("delete tunnel: %v", err)
+	}
+
+	activeCount := mustQueryInt(t, r, `SELECT COUNT(1) FROM peer_share_runtime WHERE share_id = ? AND port = ? AND status = 1`, share.ID, 25001)
+	if activeCount != 0 {
+		t.Fatalf("expected runtime released after tunnel delete, active rows=%d", activeCount)
+	}
+}
+
+func TestBindPeerShareForwardRuntimeServicesOnlyBindsForwardRole(t *testing.T) {
+	r, err := repo.Open(filepath.Join(t.TempDir(), "panel.db"))
+	if err != nil {
+		t.Fatalf("open sqlite: %v", err)
+	}
+	t.Cleanup(func() { _ = r.Close() })
+
+	h := New(r, "test-jwt-secret")
+	now := time.Now().UnixMilli()
+
+	if err := r.CreatePeerShare(&repo.PeerShare{
+		Name:           "bind-forward-role-share",
+		NodeID:         1,
+		Token:          "bind-forward-role-token",
+		MaxBandwidth:   0,
+		CurrentFlow:    0,
+		PortRangeStart: 26000,
+		PortRangeEnd:   26020,
+		IsActive:       1,
+		CreatedTime:    now,
+		UpdatedTime:    now,
+	}); err != nil {
+		t.Fatalf("create share: %v", err)
+	}
+	share, err := r.GetPeerShareByToken("bind-forward-role-token")
+	if err != nil || share == nil {
+		t.Fatalf("load share: %v", err)
+	}
+
+	if err := r.DB().Exec(`
+		INSERT INTO peer_share_runtime(id, share_id, node_id, reservation_id, resource_key, binding_id, role, chain_name, service_name, protocol, strategy, port, target, applied, status, created_time, updated_time)
+		VALUES(?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?),
+		      (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+	`,
+		1, share.ID, share.NodeID, "bind-r1", "bind-rk1", "", "forward", "", "", "tcp", "fifo", 26001, "", 0, 1, now, now,
+		2, share.ID, share.NodeID, "bind-r2", "bind-rk2", "", "middle", "", "", "tcp", "round", 26002, "", 0, 1, now, now,
+	).Error; err != nil {
+		t.Fatalf("insert runtimes: %v", err)
+	}
+
+	h.bindPeerShareForwardRuntimeServices(share, map[string]interface{}{
+		"services": []interface{}{
+			map[string]interface{}{"name": "77_2_10_tcp", "addr": "[::]:26001"},
+			map[string]interface{}{"name": "88_2_10_tcp", "addr": "[::]:26002"},
+		},
+	})
+
+	forwardServiceName := ""
+	middleServiceName := ""
+	if err := r.DB().Raw(`SELECT service_name FROM peer_share_runtime WHERE id = 1`).Scan(&forwardServiceName).Error; err != nil {
+		t.Fatalf("load forward runtime service name: %v", err)
+	}
+	if err := r.DB().Raw(`SELECT service_name FROM peer_share_runtime WHERE id = 2`).Scan(&middleServiceName).Error; err != nil {
+		t.Fatalf("load middle runtime service name: %v", err)
+	}
+
+	if forwardServiceName != "77_2_10" {
+		t.Fatalf("expected forward runtime service name bound, got %q", forwardServiceName)
+	}
+	if middleServiceName != "" {
+		t.Fatalf("expected non-forward runtime unchanged, got %q", middleServiceName)
+	}
+}
+
+func TestBindPeerShareForwardRuntimeServicesAcceptsTopLevelServiceArray(t *testing.T) {
+	r, err := repo.Open(filepath.Join(t.TempDir(), "panel.db"))
+	if err != nil {
+		t.Fatalf("open sqlite: %v", err)
+	}
+	t.Cleanup(func() { _ = r.Close() })
+
+	h := New(r, "test-jwt-secret")
+	now := time.Now().UnixMilli()
+
+	if err := r.CreatePeerShare(&repo.PeerShare{
+		Name:           "bind-array-share",
+		NodeID:         1,
+		Token:          "bind-array-token",
+		MaxBandwidth:   0,
+		CurrentFlow:    0,
+		PortRangeStart: 26100,
+		PortRangeEnd:   26120,
+		IsActive:       1,
+		CreatedTime:    now,
+		UpdatedTime:    now,
+	}); err != nil {
+		t.Fatalf("create share: %v", err)
+	}
+	share, err := r.GetPeerShareByToken("bind-array-token")
+	if err != nil || share == nil {
+		t.Fatalf("load share: %v", err)
+	}
+
+	if err := r.DB().Exec(`
+		INSERT INTO peer_share_runtime(id, share_id, node_id, reservation_id, resource_key, binding_id, role, chain_name, service_name, protocol, strategy, port, target, applied, status, created_time, updated_time)
+		VALUES(?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+	`,
+		1, share.ID, share.NodeID, "bind-array-r1", "bind-array-rk1", "", "forward", "", "", "tcp", "fifo", 26101, "", 0, 1, now, now,
+	).Error; err != nil {
+		t.Fatalf("insert runtime: %v", err)
+	}
+
+	h.bindPeerShareForwardRuntimeServices(share, []interface{}{
+		map[string]interface{}{"name": "99_2_10_tcp", "addr": "[::]:26101"},
+		map[string]interface{}{"name": "99_2_10_udp", "addr": "[::]:26101"},
+	})
+
+	forwardServiceName := ""
+	if err := r.DB().Raw(`SELECT service_name FROM peer_share_runtime WHERE id = 1`).Scan(&forwardServiceName).Error; err != nil {
+		t.Fatalf("load forward runtime service name: %v", err)
+	}
+	if forwardServiceName != "99_2_10" {
+		t.Fatalf("expected forward runtime service name bound from top-level array, got %q", forwardServiceName)
+	}
+}
+
+func TestBindPeerShareForwardRuntimeServicesCreatesRuntimeWhenMissing(t *testing.T) {
+	r, err := repo.Open(filepath.Join(t.TempDir(), "panel-bind-create-runtime.db"))
+	if err != nil {
+		t.Fatalf("open sqlite: %v", err)
+	}
+	t.Cleanup(func() { _ = r.Close() })
+
+	h := New(r, "test-jwt-secret")
+	now := time.Now().UnixMilli()
+
+	if err := r.CreatePeerShare(&repo.PeerShare{
+		Name:           "bind-create-runtime-share",
+		NodeID:         1,
+		Token:          "bind-create-runtime-token",
+		MaxBandwidth:   0,
+		CurrentFlow:    0,
+		PortRangeStart: 26300,
+		PortRangeEnd:   26320,
+		IsActive:       1,
+		CreatedTime:    now,
+		UpdatedTime:    now,
+	}); err != nil {
+		t.Fatalf("create share: %v", err)
+	}
+	share, err := r.GetPeerShareByToken("bind-create-runtime-token")
+	if err != nil || share == nil {
+		t.Fatalf("load share: %v", err)
+	}
+
+	h.bindPeerShareForwardRuntimeServices(share, map[string]interface{}{
+		"services": []interface{}{
+			map[string]interface{}{"name": "55_2_10_tcp", "addr": "[::]:26301"},
+		},
+	})
+
+	var count int64
+	if err := r.DB().Raw(`SELECT COUNT(1) FROM peer_share_runtime WHERE share_id = ? AND role = ? AND status = 1`, share.ID, "forward").Scan(&count).Error; err != nil {
+		t.Fatalf("query runtime count: %v", err)
+	}
+	if count != 1 {
+		t.Fatalf("expected 1 active forward runtime row, got %d", count)
+	}
+
+	var serviceName string
+	var port int
+	var applied int
+	if err := r.DB().Raw(`SELECT service_name, port, applied FROM peer_share_runtime WHERE share_id = ? AND role = ? ORDER BY id DESC LIMIT 1`, share.ID, "forward").Row().Scan(&serviceName, &port, &applied); err != nil {
+		t.Fatalf("query created runtime: %v", err)
+	}
+	if serviceName != "55_2_10" {
+		t.Fatalf("expected service_name=55_2_10, got %q", serviceName)
+	}
+	if port != 26301 {
+		t.Fatalf("expected port=26301, got %d", port)
+	}
+	if applied != 1 {
+		t.Fatalf("expected applied=1, got %d", applied)
+	}
+}
+
+func TestReleasePeerShareForwardRuntimeServicesMarksRuntimeReleased(t *testing.T) {
+	r, err := repo.Open(filepath.Join(t.TempDir(), "panel-release-runtime.db"))
+	if err != nil {
+		t.Fatalf("open sqlite: %v", err)
+	}
+	t.Cleanup(func() { _ = r.Close() })
+
+	h := New(r, "test-jwt-secret")
+	now := time.Now().UnixMilli()
+
+	if err := r.CreatePeerShare(&repo.PeerShare{
+		Name:           "release-runtime-share",
+		NodeID:         1,
+		Token:          "release-runtime-token",
+		MaxBandwidth:   0,
+		CurrentFlow:    0,
+		PortRangeStart: 26400,
+		PortRangeEnd:   26420,
+		IsActive:       1,
+		CreatedTime:    now,
+		UpdatedTime:    now,
+	}); err != nil {
+		t.Fatalf("create share: %v", err)
+	}
+	share, err := r.GetPeerShareByToken("release-runtime-token")
+	if err != nil || share == nil {
+		t.Fatalf("load share: %v", err)
+	}
+
+	if err := r.DB().Exec(`
+		INSERT INTO peer_share_runtime(share_id, node_id, reservation_id, resource_key, binding_id, role, chain_name, service_name, protocol, strategy, port, target, applied, status, created_time, updated_time)
+		VALUES(?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+	`, share.ID, share.NodeID, "release-r1", "release-rk1", "", "forward", "", "77_2_10", "tcp", "fifo", 26401, "", 1, 1, now, now).Error; err != nil {
+		t.Fatalf("insert runtime: %v", err)
+	}
+
+	h.releasePeerShareForwardRuntimeServices(share, map[string]interface{}{
+		"services": []interface{}{"77_2_10_tcp"},
+	})
+
+	var status int
+	var applied int
+	var serviceName string
+	if err := r.DB().Raw(`SELECT status, applied, service_name FROM peer_share_runtime WHERE share_id = ? AND role = ? ORDER BY id DESC LIMIT 1`, share.ID, "forward").Row().Scan(&status, &applied, &serviceName); err != nil {
+		t.Fatalf("query released runtime: %v", err)
+	}
+	if status != 0 {
+		t.Fatalf("expected status=0 after release, got %d", status)
+	}
+	if applied != 0 {
+		t.Fatalf("expected applied=0 after release, got %d", applied)
+	}
+	if serviceName != "" {
+		t.Fatalf("expected service_name cleared after release, got %q", serviceName)
+	}
+}
+
+func TestValidateFederationCommandPortsAcceptsTopLevelServiceArray(t *testing.T) {
+	share := &repo.PeerShare{
+		PortRangeStart: 26200,
+		PortRangeEnd:   26210,
+	}
+	err := validateFederationCommandPorts(share, []interface{}{
+		map[string]interface{}{"name": "11_2_10_tcp", "addr": "[::]:26201"},
+		map[string]interface{}{"name": "11_2_10_udp", "addr": "[::]:26201"},
+	})
+	if err != nil {
+		t.Fatalf("expected top-level service array to pass port validation, got: %v", err)
+	}
+}
+
 func TestFederationRemoteUsageList(t *testing.T) {
 	r, err := repo.Open(filepath.Join(t.TempDir(), "panel.db"))
 	if err != nil {
@@ -502,6 +941,110 @@ func TestFederationRemoteUsageList(t *testing.T) {
 	}
 }

+func TestFederationRemoteUsageListIncludesForwardPorts(t *testing.T) {
+	r, err := repo.Open(filepath.Join(t.TempDir(), "panel-forward-usage.db"))
+	if err != nil {
+		t.Fatalf("open sqlite: %v", err)
+	}
+	t.Cleanup(func() { _ = r.Close() })
+
+	h := New(r, "test-jwt-secret")
+	now := time.Now().UnixMilli()
+
+	if err := r.DB().Exec(`
+		INSERT INTO node(name, secret, server_ip, server_ip_v4, server_ip_v6, port, interface_name, version, http, tls, socks, created_time, updated_time, status, tcp_listen_addr, udp_listen_addr, inx, is_remote, remote_url, remote_token, remote_config)
+		VALUES(?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+	`, "forward-usage-remote-node", "forward-usage-secret", "10.60.70.80", "10.60.70.80", "", "33000-33010", "", "v1", 1, 1, 1, now, now, 1, "[::]", "[::]", 0, 1, "", "", `{"shareId":99,"maxBandwidth":0,"currentFlow":0,"portRangeStart":33000,"portRangeEnd":33010}`).Error; err != nil {
+		t.Fatalf("insert remote node: %v", err)
+	}
+
+	var nodeID int64
+	if err := r.DB().Raw(`SELECT id FROM node WHERE name = ? ORDER BY id DESC LIMIT 1`, "forward-usage-remote-node").Row().Scan(&nodeID); err != nil {
+		t.Fatalf("query node id: %v", err)
+	}
+
+	if err := r.DB().Exec(`
+		INSERT INTO tunnel(name, type, protocol, flow, created_time, updated_time, status, in_ip, inx)
+		VALUES(?, ?, ?, ?, ?, ?, ?, ?, ?)
+	`, "forward-usage-tunnel", 1, "tls", 1, now, now, 1, "", 0).Error; err != nil {
+		t.Fatalf("insert tunnel: %v", err)
+	}
+
+	var tunnelID int64
+	if err := r.DB().Raw(`SELECT id FROM tunnel WHERE name = ? ORDER BY id DESC LIMIT 1`, "forward-usage-tunnel").Row().Scan(&tunnelID); err != nil {
+		t.Fatalf("query tunnel id: %v", err)
+	}
+
+	if err := r.DB().Exec(`
+		INSERT INTO forward(user_id, user_name, name, tunnel_id, remote_addr, strategy, in_flow, out_flow, created_time, updated_time, status, inx)
+		VALUES(?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+	`, 1, "tester", "forward-usage-item", tunnelID, "1.1.1.1:443", "fifo", 0, 0, now, now, 1, 0).Error; err != nil {
+		t.Fatalf("insert forward: %v", err)
+	}
+
+	var forwardID int64
+	if err := r.DB().Raw(`SELECT id FROM forward WHERE name = ? ORDER BY id DESC LIMIT 1`, "forward-usage-item").Row().Scan(&forwardID); err != nil {
+		t.Fatalf("query forward id: %v", err)
+	}
+
+	if err := r.DB().Exec(`INSERT INTO forward_port(forward_id, node_id, port) VALUES(?, ?, ?)`, forwardID, nodeID, 33001).Error; err != nil {
+		t.Fatalf("insert forward_port: %v", err)
+	}
+
+	req := httptest.NewRequest(http.MethodPost, "/api/v1/federation/share/remote-usage/list", nil)
+	res := httptest.NewRecorder()
+	h.federationRemoteUsageList(res, req)
+
+	if res.Code != http.StatusOK {
+		t.Fatalf("expected status %d, got %d", http.StatusOK, res.Code)
+	}
+
+	var payload response.R
+	if err := json.NewDecoder(res.Body).Decode(&payload); err != nil {
+		t.Fatalf("decode response: %v", err)
+	}
+	if payload.Code != 0 {
+		t.Fatalf("expected response code 0, got %d (%s)", payload.Code, payload.Msg)
+	}
+
+	rows, ok := payload.Data.([]interface{})
+	if !ok || len(rows) == 0 {
+		t.Fatalf("expected non-empty usage list, got %T", payload.Data)
+	}
+
+	first, ok := rows[0].(map[string]interface{})
+	if !ok {
+		t.Fatalf("expected usage row map, got %T", rows[0])
+	}
+
+	usedPortsRaw, ok := first["usedPorts"].([]interface{})
+	if !ok {
+		t.Fatalf("expected usedPorts array, got %T", first["usedPorts"])
+	}
+	if len(usedPortsRaw) != 1 || int(usedPortsRaw[0].(float64)) != 33001 {
+		t.Fatalf("expected usedPorts [33001], got %v", usedPortsRaw)
+	}
+
+	bindingsRaw, ok := first["bindings"].([]interface{})
+	if !ok {
+		t.Fatalf("expected bindings array, got %T", first["bindings"])
+	}
+	if len(bindingsRaw) != 1 {
+		t.Fatalf("expected 1 binding row from forward usage, got %d", len(bindingsRaw))
+	}
+
+	binding, ok := bindingsRaw[0].(map[string]interface{})
+	if !ok {
+		t.Fatalf("expected binding row object, got %T", bindingsRaw[0])
+	}
+	if int(binding["allocatedPort"].(float64)) != 33001 {
+		t.Fatalf("expected allocatedPort=33001, got %v", binding["allocatedPort"])
+	}
+	if int(binding["chainType"].(float64)) != 1 {
+		t.Fatalf("expected chainType=1 for forward usage row, got %v", binding["chainType"])
+	}
+}
+
 func TestAuthPeerAllowedIPs(t *testing.T) {
 	r, err := repo.Open(filepath.Join(t.TempDir(), "panel.db"))
 	if err != nil {
@@ -2,9 +2,13 @@ package handler

 import (
 	"encoding/json"
+	"errors"
+	"log"
 	"strconv"
 	"strings"
 	"time"
+
+	"go-backend/internal/store/model"
 )

 const bytesPerGB int64 = 1024 * 1024 * 1024
@@ -30,7 +34,7 @@ type namedConfigItem struct {
 	Name string `json:"name"`
 }

-func (h *Handler) processFlowItem(item flowItem) {
+func (h *Handler) processFlowItem(nodeID int64, item flowItem) {
 	serviceName := strings.TrimSpace(item.N)
 	if serviceName == "" || serviceName == "web_api" {
 		return
@@ -40,6 +44,10 @@ func (h *Handler) processFlowItem(item flowItem) {
 	if ok {
 		inFlow, outFlow := h.scaleFlowByTunnel(forwardID, item.D, item.U)
 		_ = h.repo.AddFlow(forwardID, userID, userTunnelID, inFlow, outFlow)
+		if quota, quotaErr := h.repo.AddUserQuotaUsage(userID, inFlow+outFlow, time.Now()); quotaErr == nil {
+			h.enforceUserQuotaIfNeeded(userID, quota)
+		}
+		h.processPeerShareFlowFromForward(forwardID, nodeID, serviceName, item)

 		if userTunnelID > 0 {
 			h.enforceFlowPolicies(userID, userTunnelID)
@@ -87,6 +95,45 @@ func parsePeerShareRuntimeServiceID(serviceName string) (int64, bool) {
 	return runtimeID, true
 }

+func parsePeerShareInfoFromFederationTunnelName(tunnelName string) (int64, int, bool) {
+	tunnelName = strings.TrimSpace(tunnelName)
+	if !strings.HasPrefix(tunnelName, "Share-") {
+		return 0, 0, false
+	}
+	raw := strings.TrimPrefix(tunnelName, "Share-")
+	idx := strings.Index(raw, "-Port-")
+	if idx <= 0 {
+		return 0, 0, false
+	}
+	shareID, err := strconv.ParseInt(raw[:idx], 10, 64)
+	if err != nil || shareID <= 0 {
+		return 0, 0, false
+	}
+	portValue := strings.TrimSpace(raw[idx+len("-Port-"):])
+	port, err := strconv.Atoi(portValue)
+	if err != nil || port <= 0 {
+		return 0, 0, false
+	}
+	return shareID, port, true
+}
+
+func parsePeerShareIDFromFederationTunnelName(tunnelName string) (int64, bool) {
+	tunnelName = strings.TrimSpace(tunnelName)
+	if !strings.HasPrefix(tunnelName, "Share-") {
+		return 0, false
+	}
+	raw := strings.TrimPrefix(tunnelName, "Share-")
+	idx := strings.Index(raw, "-Port-")
+	if idx <= 0 {
+		return 0, false
+	}
+	shareID, err := strconv.ParseInt(raw[:idx], 10, 64)
+	if err != nil || shareID <= 0 {
+		return 0, false
+	}
+	return shareID, true
+}
+
 func (h *Handler) processPeerShareFlow(runtimeID int64, item flowItem) {
 	if h == nil || h.repo == nil || runtimeID <= 0 {
 		return
@@ -113,6 +160,121 @@ func (h *Handler) processPeerShareFlow(runtimeID int64, item flowItem) {
 	h.enforcePeerShareFlowLimit(share.ID)
 }

+func (h *Handler) processPeerShareFlowFromForward(forwardID int64, nodeID int64, serviceName string, item flowItem) {
+	if h == nil || h.repo == nil || forwardID <= 0 {
+		return
+	}
+
+	delta := item.D + item.U
+	if delta <= 0 {
+		return
+	}
+
+	forward, err := h.getForwardRecord(forwardID)
+	if err != nil || forward == nil {
+		// Forward not found in local database - might be a federation port-forward
+		// Try to find by service name in peer_share_runtime
+		h.processPeerShareFlowByServiceName(nodeID, serviceName, item)
+		return
+	}
+	tunnelName, err := h.repo.GetTunnelName(forward.TunnelID)
+	if err != nil {
+		h.processPeerShareFlowByServiceName(nodeID, serviceName, item)
+		return
+	}
+	shareID, ok := parsePeerShareIDFromFederationTunnelName(tunnelName)
+	if !ok {
+		h.processPeerShareFlowByServiceName(nodeID, serviceName, item)
+		return
+	}
+
+	if err := h.repo.AddPeerShareCurrentFlow(shareID, delta); err != nil {
+		h.processPeerShareFlowByServiceName(nodeID, serviceName, item)
+		return
+	}
+
+	share, err := h.repo.GetPeerShare(shareID)
+	if err != nil || share == nil {
+		return
+	}
+	if !isPeerShareFlowExceeded(share) {
+		return
+	}
+	h.enforcePeerShareFlowLimit(share.ID)
+}
+
+func normalizeForwardRuntimeServiceName(serviceName string) string {
+	name := strings.TrimSpace(serviceName)
+	if strings.HasSuffix(name, "_tcp") {
+		return strings.TrimSuffix(name, "_tcp")
+	}
+	if strings.HasSuffix(name, "_udp") {
+		return strings.TrimSuffix(name, "_udp")
+	}
+	return name
+}
+
+func (h *Handler) processPeerShareFlowByServiceName(nodeID int64, serviceName string, item flowItem) {
+	if h == nil || h.repo == nil || strings.TrimSpace(serviceName) == "" {
+		return
+	}
+
+	delta := item.D + item.U
+	if delta <= 0 {
+		return
+	}
+
+	normalized := normalizeForwardRuntimeServiceName(serviceName)
+	var runtimes []model.PeerShareRuntime
+	var err error
+
+	// Try node-scoped query first if nodeID is valid
+	if nodeID > 0 {
+		runtimes, err = h.repo.ListActiveForwardPeerShareRuntimesByNodeAndServiceName(nodeID, normalized)
+		if err != nil {
+			return
+		}
+		if len(runtimes) == 0 && normalized != serviceName {
+			runtimes, err = h.repo.ListActiveForwardPeerShareRuntimesByNodeAndServiceName(nodeID, serviceName)
+			if err != nil {
+				return
+			}
+		}
+	}
+
+	// Fallback to global query if node-scoped query returned nothing or nodeID is invalid
+	if len(runtimes) == 0 {
+		runtimes, err = h.repo.ListActiveForwardPeerShareRuntimesByServiceName(normalized)
+		if err != nil {
+			return
+		}
+		if len(runtimes) == 0 && normalized != serviceName {
+			runtimes, err = h.repo.ListActiveForwardPeerShareRuntimesByServiceName(serviceName)
+			if err != nil {
+				return
+			}
+		}
+	}
+
+	if len(runtimes) != 1 {
+		if len(runtimes) > 1 {
+			log.Printf("WARN: ambiguous peer share runtime match for service=%s nodeID=%d count=%d", serviceName, nodeID, len(runtimes))
+		}
+		return
+	}
+	runtime := runtimes[0]
+
+	_ = h.repo.AddPeerShareCurrentFlow(runtime.ShareID, delta)
+
+	matchedShare, err := h.repo.GetPeerShare(runtime.ShareID)
+	if err != nil || matchedShare == nil {
+		return
+	}
+	if isPeerShareFlowExceeded(matchedShare) {
+		h.enforcePeerShareFlowLimit(matchedShare.ID)
+	}
+}
+
 func (h *Handler) enforcePeerShareFlowLimit(shareID int64) {
 	if h == nil || h.repo == nil || shareID <= 0 {
 		return
@@ -169,6 +331,70 @@ func (h *Handler) enforceFlowPolicies(userID int64, userTunnelID int64) {
 	}
 }

+func (h *Handler) ensureUserTunnelForwardAllowed(userID int64, tunnelID int64, now int64) error {
+	if h == nil || h.repo == nil {
+		return errors.New("invalid flow policy context")
+	}
+	if userID <= 0 || tunnelID <= 0 {
+		return nil
+	}
+
+	user, err := h.repo.GetUserByID(userID)
+	if err != nil {
+		return err
+	}
+	if user == nil {
+		return errors.New("用户不存在")
+	}
+
+	if user.Status != 1 {
+		return errors.New("账号已禁用")
+	}
+	if user.ExpTime > 0 && user.ExpTime <= now {
+		return errors.New("账号已过期")
+	}
+
+	flowLimit := user.Flow * bytesPerGB
+	current := user.InFlow + user.OutFlow
+	if flowLimit < current {
+		return errors.New("流量已超额，禁止开启转发")
+	}
+	if err := h.ensureUserForwardAllowedByQuota(userID, now); err != nil {
+		return err
+	}
+
+	userTunnelID, _, _, err := h.resolveUserTunnelAndLimiter(userID, tunnelID)
+	if err != nil {
+		return err
+	}
+	if userTunnelID <= 0 {
+		return nil
+	}
+
+	policy, err := h.getUserTunnelPolicy(userTunnelID)
+	if err != nil {
+		return err
+	}
+	if policy == nil {
+		return nil
+	}
+
+	if policy.Status != 1 {
+		return errors.New("该隧道已禁用")
+	}
+	if policy.ExpTime > 0 && policy.ExpTime <= now {
+		return errors.New("该隧道已过期")
+	}
+
+	utFlowLimit := policy.Flow * bytesPerGB
+	utCurrent := policy.InFlow + policy.OutFlow
+	if utCurrent >= utFlowLimit {
+		return errors.New("该隧道流量已超额，禁止开启转发")
+	}
+
+	return nil
+}
+
 func (h *Handler) shouldPauseUser(userID int64, now int64) bool {
 	user, err := h.repo.GetUserByID(userID)
 	if err != nil || user == nil {
@@ -271,15 +497,46 @@ func (h *Handler) cleanNodeConfigs(nodeID int64, rawConfig string) {
 }

 func (h *Handler) cleanOrphanedServices(nodeID int64, services []namedConfigItem) {
+	runtimeServiceNames, err := h.repo.ListActiveForwardPeerShareRuntimeServiceNamesByNode(nodeID)
+	if err != nil {
+		return
+	}
+	minUpdatedTime := time.Now().Add(-10 * time.Minute).UnixMilli()
+	hasUnboundForwardPeerRuntime, err := h.repo.HasRecentUnboundForwardPeerShareRuntimeOnNode(nodeID, minUpdatedTime)
+	if err != nil {
+		hasUnboundForwardPeerRuntime = false
+	}
+	runtimeServiceSet := make(map[string]struct{}, len(runtimeServiceNames))
+	for _, serviceName := range runtimeServiceNames {
+		serviceName = strings.TrimSpace(serviceName)
+		if serviceName == "" {
+			continue
+		}
+		runtimeServiceSet[serviceName] = struct{}{}
+	}
+
 	for _, item := range services {
 		name := strings.TrimSpace(item.Name)
 		if name == "" || name == "web_api" {
 			continue
 		}
+		if strings.HasPrefix(name, "fed_svc_") {
+			continue
+		}
+		normalizedName := normalizeForwardRuntimeServiceName(name)
+		if _, ok := runtimeServiceSet[normalizedName]; ok {
+			continue
+		}
+		if _, ok := runtimeServiceSet[name]; ok {
+			continue
+		}

 		parts := strings.Split(name, "_")
 		if len(parts) >= 3 {
 			forwardID, err := strconv.ParseInt(parts[0], 10, 64)
+			if err == nil && forwardID > 0 && hasUnboundForwardPeerRuntime {
+				continue
+			}
 			if err == nil && forwardID > 0 && !h.forwardExists(forwardID) {
 				_, _ = h.sendNodeCommand(nodeID, "DeleteService", map[string]interface{}{"services": []string{name, parts[0] + "_" + parts[1] + "_" + parts[2], parts[0] + "_" + parts[1] + "_" + parts[2] + "_tcp", parts[0] + "_" + parts[1] + "_" + parts[2] + "_udp"}}, false, true)
 				continue
@@ -299,6 +556,9 @@ func (h *Handler) cleanOrphanedServices(nodeID int64, services []namedConfigItem
 				continue
 			}
 			forwardID, err := strconv.ParseInt(parts[0], 10, 64)
+			if err == nil && forwardID > 0 && hasUnboundForwardPeerRuntime {
+				continue
+			}
 			if err != nil || forwardID <= 0 || h.forwardExists(forwardID) {
 				continue
 			}
@@ -2,6 +2,7 @@ package handler

 import (
 	"path/filepath"
+	"strconv"
 	"testing"
 	"time"

@@ -43,7 +44,7 @@ func TestProcessFlowItemTracksPeerShareFlowAndEnforcesLimit(t *testing.T) {
 	}

 	h := &Handler{repo: r}
-	h.processFlowItem(flowItem{N: "fed_svc_17", U: 1200, D: 900})
+	h.processFlowItem(1, flowItem{N: "fed_svc_17", U: 1200, D: 900})

 	updatedShare, err := r.GetPeerShare(share.ID)
 	if err != nil || updatedShare == nil {
@@ -61,3 +62,345 @@ func TestProcessFlowItemTracksPeerShareFlowAndEnforcesLimit(t *testing.T) {
 		t.Fatalf("expected runtime status=0 after limit enforcement, got %d", runtime.Status)
 	}
 }
+
+func TestProcessFlowItemTracksPeerShareFlowForFederationPortForward(t *testing.T) {
+	r, err := repo.Open(filepath.Join(t.TempDir(), "panel-forward.db"))
+	if err != nil {
+		t.Fatalf("open repo: %v", err)
+	}
+	defer r.Close()
+
+	now := time.Now().UnixMilli()
+	if err := r.CreatePeerShare(&repo.PeerShare{
+		Name:           "forward-share",
+		NodeID:         1,
+		Token:          "forward-share-token",
+		MaxBandwidth:   0,
+		CurrentFlow:    0,
+		PortRangeStart: 30000,
+		PortRangeEnd:   30010,
+		IsActive:       1,
+		CreatedTime:    now,
+		UpdatedTime:    now,
+	}); err != nil {
+		t.Fatalf("create peer share: %v", err)
+	}
+	share, err := r.GetPeerShareByToken("forward-share-token")
+	if err != nil || share == nil {
+		t.Fatalf("load peer share: %v", err)
+	}
+
+	if err := r.DB().Exec(`
+		INSERT INTO user(id, user, pwd, role_id, exp_time, flow, in_flow, out_flow, flow_reset_time, num, created_time, updated_time, status)
+		VALUES(2, 'u2', 'x', 1, ?, 99999, 0, 0, 1, 1, ?, ?, 1)
+	`, now+24*60*60*1000, now, now).Error; err != nil {
+		t.Fatalf("insert user: %v", err)
+	}
+
+	tunnelName := "Share-" + strconv.FormatInt(share.ID, 10) + "-Port-30001"
+	if err := r.DB().Exec(`
+		INSERT INTO tunnel(id, name, traffic_ratio, type, protocol, flow, created_time, updated_time, status, in_ip, inx)
+		VALUES(1, ?, 1.0, 1, 'tls', 1, ?, ?, 1, NULL, 0)
+	`, tunnelName, now, now).Error; err != nil {
+		t.Fatalf("insert tunnel: %v", err)
+	}
+
+	if err := r.DB().Exec(`
+		INSERT INTO user_tunnel(id, user_id, tunnel_id, speed_id, num, flow, in_flow, out_flow, flow_reset_time, exp_time, status)
+		VALUES(10, 2, 1, NULL, 1, 99999, 0, 0, 1, ?, 1)
+	`, now+24*60*60*1000).Error; err != nil {
+		t.Fatalf("insert user_tunnel: %v", err)
+	}
+
+	if err := r.DB().Exec(`
+		INSERT INTO forward(id, user_id, user_name, name, tunnel_id, remote_addr, strategy, in_flow, out_flow, created_time, updated_time, status, inx)
+		VALUES(20, 2, 'u2', 'f20', 1, '1.1.1.1:443', 'fifo', 0, 0, ?, ?, 1, 0)
+	`, now, now).Error; err != nil {
+		t.Fatalf("insert forward: %v", err)
+	}
+
+	h := &Handler{repo: r}
+	h.processFlowItem(1, flowItem{N: "20_2_10", U: 120, D: 80})
+
+	updatedShare, err := r.GetPeerShare(share.ID)
+	if err != nil || updatedShare == nil {
+		t.Fatalf("reload share: %v", err)
+	}
+	if updatedShare.CurrentFlow != 200 {
+		t.Fatalf("expected current_flow=200, got %d", updatedShare.CurrentFlow)
+	}
+}
+
+func TestProcessFlowItemTracksPeerShareFlowByForwardServiceName(t *testing.T) {
+	r, err := repo.Open(filepath.Join(t.TempDir(), "panel-forward-service.db"))
+	if err != nil {
+		t.Fatalf("open repo: %v", err)
+	}
+	defer r.Close()
+
+	now := time.Now().UnixMilli()
+	if err := r.CreatePeerShare(&repo.PeerShare{
+		Name:           "forward-service-share",
+		NodeID:         1,
+		Token:          "forward-service-token",
+		MaxBandwidth:   0,
+		CurrentFlow:    0,
+		PortRangeStart: 31000,
+		PortRangeEnd:   31010,
+		IsActive:       1,
+		CreatedTime:    now,
+		UpdatedTime:    now,
+	}); err != nil {
+		t.Fatalf("create peer share: %v", err)
+	}
+	share, err := r.GetPeerShareByToken("forward-service-token")
+	if err != nil || share == nil {
+		t.Fatalf("load peer share: %v", err)
+	}
+
+	if err := r.DB().Exec(`
+		INSERT INTO peer_share_runtime(share_id, node_id, reservation_id, resource_key, binding_id, role, chain_name, service_name, protocol, strategy, port, target, applied, status, created_time, updated_time)
+		VALUES(?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+	`, share.ID, share.NodeID, "svc-r1", "svc-rk1", "", "forward", "", "20_2_10", "tcp", "fifo", 31001, "", 1, 1, now, now).Error; err != nil {
+		t.Fatalf("insert peer_share_runtime: %v", err)
+	}
+
+	h := &Handler{repo: r}
+	h.processFlowItem(1, flowItem{N: "20_2_10_tcp", U: 120, D: 80})
+
+	updatedShare, err := r.GetPeerShare(share.ID)
+	if err != nil || updatedShare == nil {
+		t.Fatalf("reload share: %v", err)
+	}
+	if updatedShare.CurrentFlow != 200 {
+		t.Fatalf("expected current_flow=200, got %d", updatedShare.CurrentFlow)
+	}
+}
+
+func TestProcessFlowItemFallsBackToServiceNameWhenForwardIDCollidesAcrossPanels(t *testing.T) {
+	r, err := repo.Open(filepath.Join(t.TempDir(), "panel-forward-collision.db"))
+	if err != nil {
+		t.Fatalf("open repo: %v", err)
+	}
+	defer r.Close()
+
+	now := time.Now().UnixMilli()
+	if err := r.CreatePeerShare(&repo.PeerShare{
+		Name:           "collision-share",
+		NodeID:         1,
+		Token:          "collision-token",
+		MaxBandwidth:   0,
+		CurrentFlow:    0,
+		PortRangeStart: 31400,
+		PortRangeEnd:   31410,
+		IsActive:       1,
+		CreatedTime:    now,
+		UpdatedTime:    now,
+	}); err != nil {
+		t.Fatalf("create peer share: %v", err)
+	}
+	share, err := r.GetPeerShareByToken("collision-token")
+	if err != nil || share == nil {
+		t.Fatalf("load peer share: %v", err)
+	}
+
+	if err := r.DB().Exec(`
+		INSERT INTO peer_share_runtime(share_id, node_id, reservation_id, resource_key, binding_id, role, chain_name, service_name, protocol, strategy, port, target, applied, status, created_time, updated_time)
+		VALUES(?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+	`, share.ID, share.NodeID, "collision-r1", "collision-rk1", "", "forward", "", "20_2_10", "tcp", "fifo", 31401, "", 1, 1, now, now).Error; err != nil {
+		t.Fatalf("insert peer_share_runtime: %v", err)
+	}
+
+	if err := r.DB().Exec(`
+		INSERT INTO tunnel(id, name, traffic_ratio, type, protocol, flow, created_time, updated_time, status, in_ip, inx)
+		VALUES(2, 'local-tunnel-with-colliding-forward-id', 1.0, 1, 'tls', 1, ?, ?, 1, NULL, 0)
+	`, now, now).Error; err != nil {
+		t.Fatalf("insert local tunnel: %v", err)
+	}
+
+	if err := r.DB().Exec(`
+		INSERT INTO forward(id, user_id, user_name, name, tunnel_id, remote_addr, strategy, in_flow, out_flow, created_time, updated_time, status, inx)
+		VALUES(20, 1, 'local-user', 'local-f20', 2, '8.8.8.8:53', 'fifo', 0, 0, ?, ?, 1, 0)
+	`, now, now).Error; err != nil {
+		t.Fatalf("insert local forward: %v", err)
+	}
+
+	h := &Handler{repo: r}
+	h.processFlowItem(1, flowItem{N: "20_2_10_tcp", U: 120, D: 80})
+
+	updatedShare, err := r.GetPeerShare(share.ID)
+	if err != nil || updatedShare == nil {
+		t.Fatalf("reload share: %v", err)
+	}
+	if updatedShare.CurrentFlow != 200 {
+		t.Fatalf("expected current_flow=200, got %d", updatedShare.CurrentFlow)
+	}
+}
+
+func TestProcessFlowItemSkipsPeerShareFlowWhenServiceNameIsAmbiguous(t *testing.T) {
+	r, err := repo.Open(filepath.Join(t.TempDir(), "panel-forward-ambiguous.db"))
+	if err != nil {
+		t.Fatalf("open repo: %v", err)
+	}
+	defer r.Close()
+
+	now := time.Now().UnixMilli()
+	if err := r.CreatePeerShare(&repo.PeerShare{
+		Name:           "ambiguous-share-a",
+		NodeID:         1,
+		Token:          "ambiguous-token-a",
+		MaxBandwidth:   0,
+		CurrentFlow:    0,
+		PortRangeStart: 31100,
+		PortRangeEnd:   31110,
+		IsActive:       1,
+		CreatedTime:    now,
+		UpdatedTime:    now,
+	}); err != nil {
+		t.Fatalf("create share A: %v", err)
+	}
+	if err := r.CreatePeerShare(&repo.PeerShare{
+		Name:           "ambiguous-share-b",
+		NodeID:         1,
+		Token:          "ambiguous-token-b",
+		MaxBandwidth:   0,
+		CurrentFlow:    0,
+		PortRangeStart: 31200,
+		PortRangeEnd:   31210,
+		IsActive:       1,
+		CreatedTime:    now,
+		UpdatedTime:    now,
+	}); err != nil {
+		t.Fatalf("create share B: %v", err)
+	}
+	shareA, _ := r.GetPeerShareByToken("ambiguous-token-a")
+	shareB, _ := r.GetPeerShareByToken("ambiguous-token-b")
+
+	if err := r.DB().Exec(`
+		INSERT INTO peer_share_runtime(share_id, node_id, reservation_id, resource_key, binding_id, role, chain_name, service_name, protocol, strategy, port, target, applied, status, created_time, updated_time)
+		VALUES(?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?),
+		      (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+	`,
+		shareA.ID, 1, "amb-r1", "amb-rk1", "", "forward", "", "99_2_10", "tcp", "fifo", 31101, "", 1, 1, now, now,
+		shareB.ID, 1, "amb-r2", "amb-rk2", "", "forward", "", "99_2_10", "tcp", "fifo", 31201, "", 1, 1, now, now,
+	).Error; err != nil {
+		t.Fatalf("insert ambiguous runtimes: %v", err)
+	}
+
+	h := &Handler{repo: r}
+	h.processFlowItem(1, flowItem{N: "99_2_10_tcp", U: 120, D: 80})
+
+	updatedA, _ := r.GetPeerShare(shareA.ID)
+	updatedB, _ := r.GetPeerShare(shareB.ID)
+	if updatedA.CurrentFlow != 0 || updatedB.CurrentFlow != 0 {
+		t.Fatalf("expected ambiguous service flow to be skipped, got shareA=%d shareB=%d", updatedA.CurrentFlow, updatedB.CurrentFlow)
+	}
+}
+
+func TestCleanOrphanedServicesSkipsActiveSharedForwardRuntimeServices(t *testing.T) {
+	r, err := repo.Open(filepath.Join(t.TempDir(), "panel-cleanup-runtime.db"))
+	if err != nil {
+		t.Fatalf("open repo: %v", err)
+	}
+	defer r.Close()
+
+	now := time.Now().UnixMilli()
+	if err := r.CreatePeerShare(&repo.PeerShare{
+		Name:           "cleanup-runtime-share",
+		NodeID:         1,
+		Token:          "cleanup-runtime-token",
+		MaxBandwidth:   0,
+		CurrentFlow:    0,
+		PortRangeStart: 31300,
+		PortRangeEnd:   31310,
+		IsActive:       1,
+		CreatedTime:    now,
+		UpdatedTime:    now,
+	}); err != nil {
+		t.Fatalf("create peer share: %v", err)
+	}
+	share, err := r.GetPeerShareByToken("cleanup-runtime-token")
+	if err != nil || share == nil {
+		t.Fatalf("load peer share: %v", err)
+	}
+
+	if err := r.DB().Exec(`
+		INSERT INTO peer_share_runtime(share_id, node_id, reservation_id, resource_key, binding_id, role, chain_name, service_name, protocol, strategy, port, target, applied, status, created_time, updated_time)
+		VALUES(?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+	`, share.ID, share.NodeID, "cleanup-r1", "cleanup-rk1", "", "forward", "", "20_2_10", "tcp", "fifo", 31301, "", 1, 1, now, now).Error; err != nil {
+		t.Fatalf("insert peer_share_runtime: %v", err)
+	}
+
+	h := &Handler{repo: r}
+
+	defer func() {
+		if rec := recover(); rec != nil {
+			t.Fatalf("cleanOrphanedServices should skip active shared runtime service; got panic: %v", rec)
+		}
+	}()
+
+	h.cleanOrphanedServices(share.NodeID, []namedConfigItem{{Name: "20_2_10_tcp"}})
+}
+
+func TestCleanOrphanedServicesSkipsFederationServicePrefix(t *testing.T) {
+	r, err := repo.Open(filepath.Join(t.TempDir(), "panel-cleanup-fed-svc.db"))
+	if err != nil {
+		t.Fatalf("open repo: %v", err)
+	}
+	defer r.Close()
+
+	h := &Handler{repo: r}
+
+	defer func() {
+		if rec := recover(); rec != nil {
+			t.Fatalf("cleanOrphanedServices should skip fed_svc_ service names; got panic: %v", rec)
+		}
+	}()
+
+	h.cleanOrphanedServices(1, []namedConfigItem{{Name: "fed_svc_999_tcp"}})
+}
+
+func TestCleanOrphanedServicesSkipsForwardPatternWhenNodeHasActivePeerShareForwardRuntime(t *testing.T) {
+	r, err := repo.Open(filepath.Join(t.TempDir(), "panel-cleanup-forward-runtime-empty-service.db"))
+	if err != nil {
+		t.Fatalf("open repo: %v", err)
+	}
+	defer r.Close()
+
+	now := time.Now().UnixMilli()
+	if err := r.CreatePeerShare(&repo.PeerShare{
+		Name:           "cleanup-forward-runtime-empty-service",
+		NodeID:         1,
+		Token:          "cleanup-forward-runtime-empty-service-token",
+		MaxBandwidth:   0,
+		CurrentFlow:    0,
+		PortRangeStart: 31420,
+		PortRangeEnd:   31430,
+		IsActive:       1,
+		CreatedTime:    now,
+		UpdatedTime:    now,
+	}); err != nil {
+		t.Fatalf("create peer share: %v", err)
+	}
+	share, err := r.GetPeerShareByToken("cleanup-forward-runtime-empty-service-token")
+	if err != nil || share == nil {
+		t.Fatalf("load peer share: %v", err)
+	}
+
+	if err := r.DB().Exec(`
+		INSERT INTO peer_share_runtime(share_id, node_id, reservation_id, resource_key, binding_id, role, chain_name, service_name, protocol, strategy, port, target, applied, status, created_time, updated_time)
+		VALUES(?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+	`, share.ID, share.NodeID, "cleanup-forward-empty-r1", "cleanup-forward-empty-rk1", "", "forward", "", "", "tcp", "fifo", 31421, "", 0, 1, now, now).Error; err != nil {
+		t.Fatalf("insert peer_share_runtime with empty service name: %v", err)
+	}
+
+	h := &Handler{repo: r}
+
+	defer func() {
+		if rec := recover(); rec != nil {
+			t.Fatalf("cleanOrphanedServices should skip forward-pattern services when active peer-share forward runtime exists; got panic: %v", rec)
+		}
+	}()
+
+	h.cleanOrphanedServices(share.NodeID, []namedConfigItem{{Name: "20_2_10_tcp"}})
+}
@@ -3,6 +3,7 @@ package handler
 import (
 	"context"
 	"database/sql"
+	"encoding/base64"
 	"encoding/json"
 	"fmt"
 	"io"
@@ -72,6 +73,11 @@ type flowItem struct {
 	D int64  `json:"d"`
 }

+const (
+	pngDataURLPrefix          = "data:image/png;base64,"
+	maxBrandAssetDataURLBytes = 1024 * 1024
+)
+
 func New(repo *repo.Repository, jwtSecret string) *Handler {
 	h := &Handler{
 		repo:                   repo,
@@ -95,6 +101,7 @@ func (h *Handler) Register(mux *http.ServeMux) {
 	mux.HandleFunc("/api/v1/user/update", h.userUpdate)
 	mux.HandleFunc("/api/v1/user/delete", h.userDelete)
 	mux.HandleFunc("/api/v1/user/reset", h.userResetFlow)
+	mux.HandleFunc("/api/v1/user/quota/reset", h.userQuotaReset)
 	mux.HandleFunc("/api/v1/user/groups", h.userGroups)
 	mux.HandleFunc("/api/v1/config/get", h.getConfigByName)
 	mux.HandleFunc("/api/v1/config/list", h.getConfigs)
@@ -116,6 +123,7 @@ func (h *Handler) Register(mux *http.ServeMux) {
 	mux.HandleFunc("/api/v1/node/delete", h.nodeDelete)
 	mux.HandleFunc("/api/v1/node/install", h.nodeInstall)
 	mux.HandleFunc("/api/v1/node/update-order", h.nodeUpdateOrder)
+	mux.HandleFunc("/api/v1/node/dismiss-expiry-reminder", h.nodeDismissExpiryReminder)
 	mux.HandleFunc("/api/v1/node/batch-delete", h.nodeBatchDelete)
 	mux.HandleFunc("/api/v1/node/check-status", h.nodeCheckStatus)
 	mux.HandleFunc("/api/v1/node/upgrade", h.nodeUpgrade)
@@ -128,6 +136,7 @@ func (h *Handler) Register(mux *http.ServeMux) {
 	mux.HandleFunc("/api/v1/tunnel/update", h.tunnelUpdate)
 	mux.HandleFunc("/api/v1/tunnel/delete", h.tunnelDelete)
 	mux.HandleFunc("/api/v1/tunnel/diagnose", h.tunnelDiagnose)
+	mux.HandleFunc("/api/v1/tunnel/diagnose/stream", h.tunnelDiagnoseStream)
 	mux.HandleFunc("/api/v1/tunnel/update-order", h.tunnelUpdateOrder)
 	mux.HandleFunc("/api/v1/tunnel/batch-delete", h.tunnelBatchDelete)
 	mux.HandleFunc("/api/v1/tunnel/batch-redeploy", h.tunnelBatchRedeploy)
@@ -143,6 +152,7 @@ func (h *Handler) Register(mux *http.ServeMux) {
 	mux.HandleFunc("/api/v1/forward/pause", h.forwardPause)
 	mux.HandleFunc("/api/v1/forward/resume", h.forwardResume)
 	mux.HandleFunc("/api/v1/forward/diagnose", h.forwardDiagnose)
+	mux.HandleFunc("/api/v1/forward/diagnose/stream", h.forwardDiagnoseStream)
 	mux.HandleFunc("/api/v1/forward/update-order", h.forwardUpdateOrder)
 	mux.HandleFunc("/api/v1/forward/batch-delete", h.forwardBatchDelete)
 	mux.HandleFunc("/api/v1/forward/batch-pause", h.forwardBatchPause)
@@ -153,7 +163,6 @@ func (h *Handler) Register(mux *http.ServeMux) {
 	mux.HandleFunc("/api/v1/speed-limit/create", h.speedLimitCreate)
 	mux.HandleFunc("/api/v1/speed-limit/update", h.speedLimitUpdate)
 	mux.HandleFunc("/api/v1/speed-limit/delete", h.speedLimitDelete)
-	mux.HandleFunc("/api/v1/speed-limit/tunnels", h.tunnelList)
 	mux.HandleFunc("/api/v1/tunnel/user/tunnel", h.userTunnelVisibleList)
 	mux.HandleFunc("/api/v1/tunnel/user/list", h.userTunnelList)
 	mux.HandleFunc("/api/v1/group/tunnel/list", h.tunnelGroupList)
@@ -219,7 +228,7 @@ func (h *Handler) login(w http.ResponseWriter, r *http.Request) {
 		response.WriteJSON(w, response.Err(-2, err.Error()))
 		return
 	}
-	if captchaEnabled {
+	if captchaEnabled && !h.apiClientCaptchaBypassEnabled(r) {
 		captchaID := strings.TrimSpace(req.CaptchaID)
 		if captchaID == "" {
 			response.WriteJSON(w, response.ErrDefault("验证码校验失败"))
@@ -564,7 +573,7 @@ func (h *Handler) userTunnelList(w http.ResponseWriter, r *http.Request) {
 			"userId":         t.UserID,
 			"tunnelId":       t.TunnelID,
 			"tunnelName":     t.TunnelName,
-			"status":         1,
+			"status":         t.Status,
 			"flow":           t.Flow,
 			"num":            t.Num,
 			"expTime":        t.ExpTime,
@@ -704,7 +713,8 @@ func (h *Handler) flowConfig(w http.ResponseWriter, r *http.Request) {

 func (h *Handler) flowUpload(w http.ResponseWriter, r *http.Request) {
 	secret := r.URL.Query().Get("secret")
-	if ok, _ := h.repo.NodeExistsBySecret(secret); !ok {
+	node, _ := h.repo.GetNodeBySecret(secret)
+	if node == nil {
 		w.Header().Set("Content-Type", "text/plain; charset=utf-8")
 		_, _ = w.Write([]byte("ok"))
 		return
@@ -715,7 +725,7 @@ func (h *Handler) flowUpload(w http.ResponseWriter, r *http.Request) {
 		var items []flowItem
 		if json.Unmarshal([]byte(raw), &items) == nil {
 			for _, item := range items {
-				h.processFlowItem(item)
+				h.processFlowItem(node.ID, item)
 			}
 		}
 	}
@@ -746,7 +756,14 @@ func (h *Handler) updateConfigs(w http.ResponseWriter, r *http.Request) {
 		if key == "" {
 			continue
 		}
-		if err := h.repo.UpsertConfig(key, v, now); err != nil {
+
+		value, err := normalizeAndValidateConfigValue(key, v)
+		if err != nil {
+			response.WriteJSON(w, response.ErrDefault(err.Error()))
+			return
+		}
+
+		if err := h.repo.UpsertConfig(key, value, now); err != nil {
 			response.WriteJSON(w, response.Err(-2, err.Error()))
 			return
 		}
@@ -766,16 +783,24 @@ func (h *Handler) updateSingleConfig(w http.ResponseWriter, r *http.Request) {
 		response.WriteJSON(w, response.ErrDefault("配置名称不能为空"))
 		return
 	}
-	if strings.TrimSpace(req.Name) == "" {
+	name := strings.TrimSpace(req.Name)
+	if name == "" {
 		response.WriteJSON(w, response.ErrDefault("配置名称不能为空"))
 		return
 	}
-	if strings.TrimSpace(req.Value) == "" {
+
+	value, err := normalizeAndValidateConfigValue(name, req.Value)
+	if err != nil {
+		response.WriteJSON(w, response.ErrDefault(err.Error()))
+		return
+	}
+
+	if value == "" && name != "app_logo" && name != "app_favicon" {
 		response.WriteJSON(w, response.ErrDefault("配置值不能为空"))
 		return
 	}

-	if err := h.repo.UpsertConfig(strings.TrimSpace(req.Name), req.Value, time.Now().UnixMilli()); err != nil {
+	if err := h.repo.UpsertConfig(name, value, time.Now().UnixMilli()); err != nil {
 		response.WriteJSON(w, response.Err(-2, err.Error()))
 		return
 	}
@@ -783,6 +808,37 @@ func (h *Handler) updateSingleConfig(w http.ResponseWriter, r *http.Request) {
 	response.WriteJSON(w, response.OKEmpty())
 }

+func normalizeAndValidateConfigValue(key, value string) (string, error) {
+	switch strings.TrimSpace(key) {
+	case "app_logo", "app_favicon":
+		normalized := strings.TrimSpace(value)
+		if normalized == "" {
+			return "", nil
+		}
+
+		if !strings.HasPrefix(normalized, pngDataURLPrefix) {
+			return "", fmt.Errorf("品牌图片必须通过上传生成 PNG 数据")
+		}
+
+		if len(normalized) > maxBrandAssetDataURLBytes {
+			return "", fmt.Errorf("品牌图片过大，请上传更小图片")
+		}
+
+		payload := strings.TrimSpace(strings.TrimPrefix(normalized, pngDataURLPrefix))
+		if payload == "" {
+			return "", fmt.Errorf("品牌图片数据不能为空")
+		}
+
+		if _, err := base64.StdEncoding.DecodeString(payload); err != nil {
+			return "", fmt.Errorf("品牌图片数据格式无效")
+		}
+
+		return pngDataURLPrefix + payload, nil
+	default:
+		return value, nil
+	}
+}
+
 func (h *Handler) userPackage(w http.ResponseWriter, r *http.Request) {
 	if r.Method != http.MethodPost {
 		response.WriteJSON(w, response.ErrDefault("请求失败"))
@@ -988,10 +1044,41 @@ func (h *Handler) captchaEnabled() (bool, error) {
 	if err != nil {
 		return false, err
 	}
-	if cfg == nil {
+	if cfg == nil || !strings.EqualFold(strings.TrimSpace(cfg.Value), "true") {
 		return false, nil
 	}
-	return strings.EqualFold(cfg.Value, "true"), nil
+
+	siteCfg, err := h.repo.GetConfigByName("cloudflare_site_key")
+	if err != nil {
+		return false, err
+	}
+	if siteCfg == nil || strings.TrimSpace(siteCfg.Value) == "" {
+		return false, nil
+	}
+
+	secretCfg, err := h.repo.GetConfigByName("cloudflare_secret_key")
+	if err != nil {
+		return false, err
+	}
+	if secretCfg == nil || strings.TrimSpace(secretCfg.Value) == "" {
+		return false, nil
+	}
+
+	return true, nil
+}
+
+func (h *Handler) apiClientCaptchaBypassEnabled(r *http.Request) bool {
+	if r == nil {
+		return false
+	}
+
+	client := strings.ToLower(strings.TrimSpace(r.Header.Get("X-FLVX-API-Client")))
+	switch client {
+	case "whmcs", "whmcs-module":
+		return true
+	default:
+		return false
+	}
 }

 func (h *Handler) markCaptchaToken(token string) {
@@ -18,11 +18,12 @@ func (h *Handler) StartBackgroundJobs() {
 	ctx, cancel := context.WithCancel(context.Background())
 	h.jobsCancel = cancel
 	h.jobsStarted = true
-	h.jobsWG.Add(2)
+	h.jobsWG.Add(3)
 	h.jobsMu.Unlock()

 	go h.runHourlyStatsLoop(ctx)
 	go h.runDailyMaintenanceLoop(ctx)
+	go h.runNodeRenewalCycleLoop(ctx)
 }

 func (h *Handler) StopBackgroundJobs() {
@@ -135,6 +136,7 @@ func (h *Handler) runResetAndExpiryJob(now time.Time) {
 	}

 	h.resetMonthlyFlow(now)
+	h.resetUserQuotaWindows(now)
 	h.disableExpiredUsers(now.UnixMilli())
 	h.disableExpiredUserTunnels(now.UnixMilli())
 }
@@ -176,3 +178,39 @@ func (h *Handler) disableExpiredUserTunnels(nowMs int64) {
 		_ = h.repo.DisableUserTunnel(item.ID)
 	}
 }
+
+func (h *Handler) runNodeRenewalCycleLoop(ctx context.Context) {
+	defer h.jobsWG.Done()
+
+	for {
+		wait := durationUntilNextNodeRenewalCycle(time.Now())
+		timer := time.NewTimer(wait)
+		select {
+		case <-ctx.Done():
+			if !timer.Stop() {
+				<-timer.C
+			}
+			return
+		case <-timer.C:
+			h.runNodeRenewalCycleJob(time.Now())
+		}
+	}
+}
+
+func durationUntilNextNodeRenewalCycle(now time.Time) time.Duration {
+	next := now.Truncate(6 * time.Hour).Add(6 * time.Hour)
+	return next.Sub(now)
+}
+
+func (h *Handler) runNodeRenewalCycleJob(now time.Time) {
+	if h == nil || h.repo == nil {
+		return
+	}
+
+	advanced, err := h.repo.AdvanceNodeRenewalCycles(now.UnixMilli())
+	if err != nil {
+		return
+	}
+
+	_ = advanced
+}
@@ -0,0 +1,55 @@
+package handler
+
+import (
+	"database/sql"
+	"testing"
+	"time"
+
+	"go-backend/internal/store/repo"
+)
+
+func TestRunNodeRenewalCycleJob_AdvancesOverdueAnchorTimes(t *testing.T) {
+	dbPath := t.TempDir() + "/renewal-test.db"
+	r, err := repo.Open(dbPath)
+	if err != nil {
+		t.Fatalf("open repo: %v", err)
+	}
+	t.Cleanup(func() {
+		_ = r.Close()
+	})
+
+	now := time.Date(2026, 3, 8, 12, 0, 0, 0, time.UTC)
+	nowMs := now.UnixMilli()
+
+	nodeID := int64(101)
+	err = r.DB().Exec(`
+		INSERT INTO node (id, name, secret, server_ip, port, http, tls, socks, created_time, status, renewal_cycle, expiry_time)
+		VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+	`, nodeID, "no-cycle-node", "test-secret", "192.168.1.1", "1000-65535", 1, 1, 1, nowMs, 1, "", nil).Error
+	if err != nil {
+		t.Fatalf("insert test node: %v", err)
+	}
+
+	quarterNodeID := int64(102)
+	err = r.DB().Exec(`
+		INSERT INTO node (id, name, secret, server_ip, port, http, tls, socks, created_time, status, renewal_cycle, expiry_time)
+		VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+	`, quarterNodeID, "quarter-node", "test-secret", "192.168.1.1", "1000-65535", 1, 1, 1, nowMs, 1, "quarter", now.AddDate(0, -4, 0).UnixMilli()).Error
+	if err != nil {
+		t.Fatalf("insert test node: %v", err)
+	}
+
+	h := &Handler{repo: r}
+	h.runNodeRenewalCycleJob(now)
+
+	var anchor sql.NullInt64
+	err = r.DB().Raw(`SELECT expiry_time FROM node WHERE id = ?`, quarterNodeID).Row().Scan(&anchor)
+	if err != nil {
+		t.Fatalf("query expiry_time: %v", err)
+	}
+
+	expectedAnchor := now.AddDate(0, 2, 0).UnixMilli()
+	if !anchor.Valid || anchor.Int64 != expectedAnchor {
+		t.Fatalf("expected anchor %d (2026-05-08), got %d", expectedAnchor, anchor.Int64)
+	}
+}
@@ -69,6 +69,13 @@ func TestRunResetAndExpiryJobResetsFlowAndDisablesExpiredRecords(t *testing.T) {
 		t.Fatalf("insert expired user: %v", err)
 	}

+	if err := r.DB().Exec(`
+		INSERT INTO user(id, user, pwd, role_id, exp_time, flow, in_flow, out_flow, flow_reset_time, num, created_time, updated_time, status)
+		VALUES(3, 'non_expiring_user', 'x', 1, 0, 100, 1000, 2000, 15, 1, ?, ?, 1)
+	`, nowMs, nowMs).Error; err != nil {
+		t.Fatalf("insert non-expiring user: %v", err)
+	}
+
 	if err := r.DB().Exec(`
 		INSERT INTO tunnel(id, name, traffic_ratio, type, protocol, flow, created_time, updated_time, status, in_ip, inx)
 		VALUES(1, 't1', 1.0, 1, 'tls', 1, ?, ?, 1, NULL, 0)
@@ -83,6 +90,13 @@ func TestRunResetAndExpiryJobResetsFlowAndDisablesExpiredRecords(t *testing.T) {
 		t.Fatalf("insert expired user_tunnel: %v", err)
 	}

+	if err := r.DB().Exec(`
+		INSERT INTO user_tunnel(id, user_id, tunnel_id, speed_id, num, flow, in_flow, out_flow, flow_reset_time, exp_time, status)
+		VALUES(11, 3, 1, NULL, 1, 1, 300, 400, 15, 0, 1)
+	`).Error; err != nil {
+		t.Fatalf("insert non-expiring user_tunnel: %v", err)
+	}
+
 	if err := r.DB().Exec(`
 		INSERT INTO forward(id, user_id, user_name, name, tunnel_id, remote_addr, strategy, in_flow, out_flow, created_time, updated_time, status, inx)
 		VALUES(20, 2, 'expired_user', 'f1', 1, '1.1.1.1:443', 'fifo', 0, 0, ?, ?, 1, 0)
@@ -90,6 +104,13 @@ func TestRunResetAndExpiryJobResetsFlowAndDisablesExpiredRecords(t *testing.T) {
 		t.Fatalf("insert forward: %v", err)
 	}

+	if err := r.DB().Exec(`
+		INSERT INTO forward(id, user_id, user_name, name, tunnel_id, remote_addr, strategy, in_flow, out_flow, created_time, updated_time, status, inx)
+		VALUES(21, 3, 'non_expiring_user', 'f2', 1, '1.1.1.1:443', 'fifo', 0, 0, ?, ?, 1, 1)
+	`, nowMs, nowMs).Error; err != nil {
+		t.Fatalf("insert non-expiring forward: %v", err)
+	}
+
 	h.runResetAndExpiryJob(now)

 	userIn, userOut, userStatus := mustQueryInt64Int64Int(t, r, `SELECT in_flow, out_flow, status FROM user WHERE id = 2`)
@@ -106,4 +127,56 @@ func TestRunResetAndExpiryJobResetsFlowAndDisablesExpiredRecords(t *testing.T) {
 	if forwardStatus != 0 {
 		t.Fatalf("expected forward status=0 after expiry handling, got %d", forwardStatus)
 	}
+
+	nonExpUserStatus := mustQueryInt(t, r, `SELECT status FROM user WHERE id = 3`)
+	if nonExpUserStatus != 1 {
+		t.Fatalf("expected non-expiring user to remain enabled, got status=%d", nonExpUserStatus)
+	}
+
+	nonExpTunnelStatus := mustQueryInt(t, r, `SELECT status FROM user_tunnel WHERE id = 11`)
+	if nonExpTunnelStatus != 1 {
+		t.Fatalf("expected non-expiring user_tunnel to remain enabled, got status=%d", nonExpTunnelStatus)
+	}
+
+	nonExpForwardStatus := mustQueryInt(t, r, `SELECT status FROM forward WHERE id = 21`)
+	if nonExpForwardStatus != 1 {
+		t.Fatalf("expected non-expiring forward to remain enabled, got status=%d", nonExpForwardStatus)
+	}
+}
+
+func TestRunResetAndExpiryJobResetsUserQuotaAndUnblocksUser(t *testing.T) {
+	dbPath := filepath.Join(t.TempDir(), "jobs-quota-reset.db")
+	r, err := repo.Open(dbPath)
+	if err != nil {
+		t.Fatalf("open sqlite: %v", err)
+	}
+	t.Cleanup(func() { _ = r.Close() })
+
+	h := New(r, "secret")
+	now := time.Date(2026, 3, 12, 0, 0, 5, 0, time.UTC)
+	nowMs := now.UnixMilli()
+
+	if err := r.DB().Exec(`
+		INSERT INTO user(id, user, pwd, role_id, exp_time, flow, in_flow, out_flow, flow_reset_time, num, created_time, updated_time, status)
+		VALUES(2, 'quota-reset-user', 'x', 1, 0, 99999, 0, 0, 1, 99999, ?, ?, 1)
+	`, nowMs, nowMs).Error; err != nil {
+		t.Fatalf("insert user: %v", err)
+	}
+	if err := r.DB().Exec(`
+		INSERT INTO user_quota(user_id, daily_limit_gb, monthly_limit_gb, daily_used_bytes, monthly_used_bytes, day_key, month_key, disabled_by_quota, disabled_at, paused_forward_ids, created_time, updated_time)
+		VALUES(2, 10, 0, ?, ?, 20260311, 202603, 1, ?, '', ?, ?)
+	`, 11*int64(1024*1024*1024), 11*int64(1024*1024*1024), nowMs, nowMs, nowMs).Error; err != nil {
+		t.Fatalf("insert user quota: %v", err)
+	}
+
+	h.runResetAndExpiryJob(now)
+
+	dailyUsed := mustQueryInt(t, r, `SELECT daily_used_bytes FROM user_quota WHERE user_id = 2`)
+	if dailyUsed != 0 {
+		t.Fatalf("expected daily quota usage reset, got %d", dailyUsed)
+	}
+	quotaDisabled := mustQueryInt(t, r, `SELECT disabled_by_quota FROM user_quota WHERE user_id = 2`)
+	if quotaDisabled != 0 {
+		t.Fatalf("expected quota disabled flag cleared, got %d", quotaDisabled)
+	}
 }
@@ -0,0 +1,39 @@
+package handler
+
+import "testing"
+
+func TestBuildForwardPortEntriesWithPreservedInIP(t *testing.T) {
+	entryNodeIDs := []int64{10, 20, 30}
+	oldPorts := []forwardPortRecord{
+		{NodeID: 10, Port: 10001, InIP: ""},
+		{NodeID: 10, Port: 10002, InIP: "10.0.0.10"},
+		{NodeID: 20, Port: 10003, InIP: "10.0.0.20"},
+	}
+
+	entries := buildForwardPortEntriesWithPreservedInIP(entryNodeIDs, oldPorts, 18080)
+	if len(entries) != 3 {
+		t.Fatalf("expected 3 entries, got %d", len(entries))
+	}
+
+	if entries[0].NodeID != 10 || entries[0].Port != 18080 || entries[0].InIP != "10.0.0.10" {
+		t.Fatalf("unexpected first entry: %+v", entries[0])
+	}
+	if entries[1].NodeID != 20 || entries[1].Port != 18080 || entries[1].InIP != "10.0.0.20" {
+		t.Fatalf("unexpected second entry: %+v", entries[1])
+	}
+	if entries[2].NodeID != 30 || entries[2].Port != 18080 || entries[2].InIP != "" {
+		t.Fatalf("unexpected third entry: %+v", entries[2])
+	}
+}
+
+func TestBuildForwardPortEntriesWithPreservedInIP_EmptyOldPorts(t *testing.T) {
+	entryNodeIDs := []int64{99}
+	entries := buildForwardPortEntriesWithPreservedInIP(entryNodeIDs, nil, 17000)
+
+	if len(entries) != 1 {
+		t.Fatalf("expected 1 entry, got %d", len(entries))
+	}
+	if entries[0].NodeID != 99 || entries[0].Port != 17000 || entries[0].InIP != "" {
+		t.Fatalf("unexpected entry: %+v", entries[0])
+	}
+}
@@ -0,0 +1,79 @@
+package handler
+
+import (
+	"path/filepath"
+	"testing"
+	"time"
+
+	"go-backend/internal/store/repo"
+)
+
+func TestReconstructTunnelState_PreservesConnectIP(t *testing.T) {
+	dbPath := filepath.Join(t.TempDir(), "reconstruct-connect-ip.db")
+	r, err := repo.Open(dbPath)
+	if err != nil {
+		t.Fatalf("open sqlite: %v", err)
+	}
+	t.Cleanup(func() { _ = r.Close() })
+
+	h := New(r, "secret")
+	now := time.Now().UnixMilli()
+
+	if err := r.DB().Exec(`
+		INSERT INTO tunnel(id, name, traffic_ratio, type, protocol, flow, created_time, updated_time, status, in_ip, inx)
+		VALUES(1, 'reconstruct-tunnel', 1.0, 2, 'tls', 1, ?, ?, 1, NULL, 0)
+	`, now, now).Error; err != nil {
+		t.Fatalf("insert tunnel: %v", err)
+	}
+
+	insertNode := func(id int64, name, ip string) {
+		if err := r.DB().Exec(`
+			INSERT INTO node(id, name, secret, server_ip, server_ip_v4, server_ip_v6, port, interface_name, version, http, tls, socks, created_time, updated_time, status, tcp_listen_addr, udp_listen_addr, inx)
+			VALUES(?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+		`, id, name, name+"-secret", ip, ip, "", "30000-30010", "", "v1", 1, 1, 1, now, now, 1, "[::]", "[::]", 0).Error; err != nil {
+			t.Fatalf("insert node %s: %v", name, err)
+		}
+	}
+
+	insertNode(101, "entry", "10.90.0.10")
+	insertNode(102, "middle", "10.90.0.20")
+	insertNode(103, "exit", "10.90.0.30")
+
+	if err := r.DB().Exec(`
+		INSERT INTO chain_tunnel(tunnel_id, chain_type, node_id, port, strategy, inx, protocol)
+		VALUES(1, '1', 101, 30001, 'round', 1, 'tls')
+	`).Error; err != nil {
+		t.Fatalf("insert entry chain: %v", err)
+	}
+	if err := r.DB().Exec(`
+		INSERT INTO chain_tunnel(tunnel_id, chain_type, node_id, port, strategy, inx, protocol, connect_ip)
+		VALUES(1, '2', 102, 30002, 'round', 1, 'tls', '10.99.9.22')
+	`).Error; err != nil {
+		t.Fatalf("insert middle chain: %v", err)
+	}
+	if err := r.DB().Exec(`
+		INSERT INTO chain_tunnel(tunnel_id, chain_type, node_id, port, strategy, inx, protocol, connect_ip)
+		VALUES(1, '3', 103, 30003, 'round', 1, 'tls', '10.99.9.33')
+	`).Error; err != nil {
+		t.Fatalf("insert exit chain: %v", err)
+	}
+
+	state, err := h.reconstructTunnelState(1)
+	if err != nil {
+		t.Fatalf("reconstructTunnelState: %v", err)
+	}
+
+	if len(state.ChainHops) != 1 || len(state.ChainHops[0]) != 1 {
+		t.Fatalf("unexpected chain hops: %+v", state.ChainHops)
+	}
+	if got := state.ChainHops[0][0].ConnectIP; got != "10.99.9.22" {
+		t.Fatalf("expected middle connectIp 10.99.9.22, got %q", got)
+	}
+
+	if len(state.OutNodes) != 1 {
+		t.Fatalf("unexpected out nodes: %+v", state.OutNodes)
+	}
+	if got := state.OutNodes[0].ConnectIP; got != "10.99.9.33" {
+		t.Fatalf("expected exit connectIp 10.99.9.33, got %q", got)
+	}
+}
@@ -0,0 +1,139 @@
+package handler
+
+import (
+	"errors"
+	"net/http"
+	"time"
+
+	"go-backend/internal/http/response"
+	"go-backend/internal/store/model"
+	"go-backend/internal/store/repo"
+)
+
+func isUserQuotaExceeded(view *model.UserQuotaView) bool {
+	if view == nil {
+		return false
+	}
+	if view.DailyLimitGB > 0 && view.DailyUsedBytes >= view.DailyLimitGB*bytesPerGB {
+		return true
+	}
+	if view.MonthlyLimitGB > 0 && view.MonthlyUsedBytes >= view.MonthlyLimitGB*bytesPerGB {
+		return true
+	}
+	return false
+}
+
+func (h *Handler) userQuotaBlockReason(userID int64, now int64) (string, error) {
+	if h == nil || h.repo == nil || userID <= 0 {
+		return "", nil
+	}
+	quota, err := h.repo.GetUserQuotaView(userID, time.UnixMilli(now))
+	if err != nil || quota == nil {
+		return "", err
+	}
+	if quota.DisabledByQuota == 1 || isUserQuotaExceeded(quota) {
+		return "该用户流量配额已超额，禁止开启转发", nil
+	}
+	return "", nil
+}
+
+func (h *Handler) enforceUserQuotaIfNeeded(userID int64, quota *model.UserQuotaView) {
+	if h == nil || h.repo == nil || userID <= 0 || quota == nil {
+		return
+	}
+	if quota.DisabledByQuota == 1 || !isUserQuotaExceeded(quota) {
+		return
+	}
+
+	forwards, err := h.listActiveForwardsByUser(userID)
+	if err != nil {
+		return
+	}
+	pausedIDs := make([]int64, 0, len(forwards))
+	now := time.Now().UnixMilli()
+	for i := range forwards {
+		forward := &forwards[i]
+		if forward.Status != 1 {
+			continue
+		}
+		if err := h.controlForwardServices(forward, "PauseService", false); err != nil {
+			continue
+		}
+		if err := h.repo.UpdateForwardStatus(forward.ID, 0, now); err != nil {
+			continue
+		}
+		pausedIDs = append(pausedIDs, forward.ID)
+	}
+	_ = h.repo.MarkUserQuotaDisabled(userID, pausedIDs, now)
+}
+
+func (h *Handler) applyUserQuotaRelease(release *repo.UserQuotaRelease, now int64) {
+	if h == nil || h.repo == nil || release == nil || release.UserID <= 0 || !release.UnblockUser {
+		return
+	}
+	for _, forwardID := range release.ForwardIDs {
+		forward, err := h.getForwardRecord(forwardID)
+		if err != nil || forward == nil {
+			continue
+		}
+		if err := h.ensureUserTunnelForwardAllowed(forward.UserID, forward.TunnelID, now); err != nil {
+			continue
+		}
+		if err := h.controlForwardServices(forward, "ResumeService", false); err != nil {
+			continue
+		}
+		_ = h.repo.UpdateForwardStatus(forwardID, 1, now)
+	}
+}
+
+func (h *Handler) resetUserQuotaWindows(now time.Time) {
+	if h == nil || h.repo == nil {
+		return
+	}
+	releases, err := h.repo.RollUserQuotaWindows(now)
+	if err != nil {
+		return
+	}
+	nowMs := now.UnixMilli()
+	for i := range releases {
+		h.applyUserQuotaRelease(&releases[i], nowMs)
+	}
+}
+
+func (h *Handler) userQuotaReset(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodPost {
+		response.WriteJSON(w, response.ErrDefault("请求失败"))
+		return
+	}
+	var req struct {
+		UserID int64  `json:"userId"`
+		Scope  string `json:"scope"`
+	}
+	if err := decodeJSON(r.Body, &req); err != nil {
+		response.WriteJSON(w, response.ErrDefault("请求参数错误"))
+		return
+	}
+	if req.UserID <= 0 {
+		response.WriteJSON(w, response.ErrDefault("用户ID不能为空"))
+		return
+	}
+	release, err := h.repo.ResetUserQuotaUsage(req.UserID, req.Scope, time.Now())
+	if err != nil {
+		response.WriteJSON(w, response.Err(-2, err.Error()))
+		return
+	}
+	nowMs := time.Now().UnixMilli()
+	h.applyUserQuotaRelease(release, nowMs)
+	response.WriteJSON(w, response.OKEmpty())
+}
+
+func (h *Handler) ensureUserForwardAllowedByQuota(userID int64, now int64) error {
+	reason, err := h.userQuotaBlockReason(userID, now)
+	if err != nil {
+		return err
+	}
+	if reason != "" {
+		return errors.New(reason)
+	}
+	return nil
+}
@@ -29,68 +29,75 @@ func (User) TableName() string { return "user" }

 // Forward maps to the "forward" table.
 type Forward struct {
-	ID          int64  `gorm:"primaryKey;autoIncrement"`
-	UserID      int64  `gorm:"column:user_id;not null"`
-	UserName    string `gorm:"column:user_name;type:varchar(100);not null"`
-	Name        string `gorm:"type:varchar(100);not null"`
-	TunnelID    int64  `gorm:"column:tunnel_id;not null"`
-	RemoteAddr  string `gorm:"column:remote_addr;type:text;not null"`
-	Strategy    string `gorm:"type:varchar(100);not null;default:'fifo'"`
-	InFlow      int64  `gorm:"column:in_flow;not null;default:0"`
-	OutFlow     int64  `gorm:"column:out_flow;not null;default:0"`
-	CreatedTime int64  `gorm:"column:created_time;not null"`
-	UpdatedTime int64  `gorm:"column:updated_time;not null"`
-	Status      int    `gorm:"not null"`
-	Inx         int    `gorm:"not null;default:0"`
+	ID          int64         `gorm:"primaryKey;autoIncrement"`
+	UserID      int64         `gorm:"column:user_id;not null"`
+	UserName    string        `gorm:"column:user_name;type:varchar(100);not null"`
+	Name        string        `gorm:"type:varchar(100);not null"`
+	TunnelID    int64         `gorm:"column:tunnel_id;not null"`
+	RemoteAddr  string        `gorm:"column:remote_addr;type:text;not null"`
+	Strategy    string        `gorm:"type:varchar(100);not null;default:'fifo'"`
+	InFlow      int64         `gorm:"not null;default:0"`
+	OutFlow     int64         `gorm:"column:out_flow;not null;default:0"`
+	CreatedTime int64         `gorm:"column:created_time;not null"`
+	UpdatedTime int64         `gorm:"column:updated_time;not null"`
+	Status      int           `gorm:"not null"`
+	Inx         int           `gorm:"not null;default:0"`
+	SpeedID     sql.NullInt64 `gorm:"column:speed_id"`
 }

 func (Forward) TableName() string { return "forward" }

 type ForwardPort struct {
-	ID        int64 `gorm:"primaryKey;autoIncrement"`
-	ForwardID int64 `gorm:"column:forward_id;not null"`
-	NodeID    int64 `gorm:"column:node_id;not null"`
-	Port      int   `gorm:"not null"`
+	ID        int64          `gorm:"primaryKey;autoIncrement"`
+	ForwardID int64          `gorm:"column:forward_id;not null"`
+	NodeID    int64          `gorm:"column:node_id;not null"`
+	Port      int            `gorm:"not null"`
+	InIP      sql.NullString `gorm:"column:in_ip;type:text"`
 }

 func (ForwardPort) TableName() string { return "forward_port" }

 type Node struct {
-	ID            int64          `gorm:"primaryKey;autoIncrement"`
-	Name          string         `gorm:"type:varchar(100);not null"`
-	Secret        string         `gorm:"type:varchar(100);not null"`
-	ServerIP      string         `gorm:"column:server_ip;type:varchar(100);not null"`
-	ServerIPV4    sql.NullString `gorm:"column:server_ip_v4;type:varchar(100)"`
-	ServerIPV6    sql.NullString `gorm:"column:server_ip_v6;type:varchar(100)"`
-	Port          string         `gorm:"type:text;not null"`
-	InterfaceName sql.NullString `gorm:"column:interface_name;type:varchar(200)"`
-	Version       sql.NullString `gorm:"type:varchar(100)"`
-	HTTP          int            `gorm:"column:http;not null;default:0"`
-	TLS           int            `gorm:"column:tls;not null;default:0"`
-	Socks         int            `gorm:"not null;default:0"`
-	CreatedTime   int64          `gorm:"column:created_time;not null"`
-	UpdatedTime   sql.NullInt64  `gorm:"column:updated_time"`
-	Status        int            `gorm:"not null"`
-	TCPListenAddr string         `gorm:"column:tcp_listen_addr;type:varchar(100);not null;default:'[::]'"`
-	UDPListenAddr string         `gorm:"column:udp_listen_addr;type:varchar(100);not null;default:'[::]'"`
-	Inx           int            `gorm:"not null;default:0"`
-	IsRemote      int            `gorm:"column:is_remote;default:0"`
-	RemoteURL     sql.NullString `gorm:"column:remote_url;type:text"`
-	RemoteToken   sql.NullString `gorm:"column:remote_token;type:text"`
-	RemoteConfig  sql.NullString `gorm:"column:remote_config;type:text"`
+	ID                      int64          `gorm:"primaryKey;autoIncrement"`
+	Name                    string         `gorm:"type:varchar(100);not null"`
+	Remark                  sql.NullString `gorm:"column:remark;type:text"`
+	ExpiryTime              sql.NullInt64  `gorm:"column:expiry_time"`
+	RenewalCycle            sql.NullString `gorm:"column:renewal_cycle;type:varchar(20)"`
+	Secret                  string         `gorm:"type:varchar(100);not null"`
+	ServerIP                string         `gorm:"column:server_ip;type:varchar(100);not null"`
+	ServerIPV4              sql.NullString `gorm:"column:server_ip_v4;type:varchar(100)"`
+	ServerIPV6              sql.NullString `gorm:"column:server_ip_v6;type:varchar(100)"`
+	ExtraIPs                sql.NullString `gorm:"column:extra_ips;type:text"`
+	Port                    string         `gorm:"type:text;not null"`
+	InterfaceName           sql.NullString `gorm:"column:interface_name;type:varchar(200)"`
+	Version                 sql.NullString `gorm:"type:varchar(100)"`
+	HTTP                    int            `gorm:"column:http;not null;default:0"`
+	TLS                     int            `gorm:"column:tls;not null;default:0"`
+	Socks                   int            `gorm:"not null;default:0"`
+	CreatedTime             int64          `gorm:"column:created_time;not null"`
+	UpdatedTime             sql.NullInt64  `gorm:"column:updated_time"`
+	Status                  int            `gorm:"not null"`
+	TCPListenAddr           string         `gorm:"column:tcp_listen_addr;type:varchar(100);not null;default:'[::]'"`
+	UDPListenAddr           string         `gorm:"column:udp_listen_addr;type:varchar(100);not null;default:'[::]'"`
+	Inx                     int            `gorm:"not null;default:0"`
+	IsRemote                int            `gorm:"column:is_remote;default:0"`
+	RemoteURL               sql.NullString `gorm:"column:remote_url;type:text"`
+	RemoteToken             sql.NullString `gorm:"column:remote_token;type:text"`
+	RemoteConfig            sql.NullString `gorm:"column:remote_config;type:text"`
+	ExpiryReminderDismissed int            `gorm:"column:expiry_reminder_dismissed;not null;default:0"`
 }

 func (Node) TableName() string { return "node" }

 type SpeedLimit struct {
-	ID          int64         `gorm:"primaryKey;autoIncrement"`
-	Name        string        `gorm:"type:varchar(100);not null"`
-	Speed       int           `gorm:"not null"`
-	TunnelID    int64         `gorm:"column:tunnel_id;not null"`
-	TunnelName  string        `gorm:"column:tunnel_name;type:varchar(100);not null"`
-	CreatedTime int64         `gorm:"column:created_time;not null"`
-	UpdatedTime sql.NullInt64 `gorm:"column:updated_time"`
-	Status      int           `gorm:"not null"`
+	ID          int64          `gorm:"primaryKey;autoIncrement"`
+	Name        string         `gorm:"type:varchar(100);not null"`
+	Speed       int            `gorm:"not null"`
+	TunnelID    sql.NullInt64  `gorm:"column:tunnel_id"`
+	TunnelName  sql.NullString `gorm:"column:tunnel_name;type:varchar(100)"`
+	CreatedTime int64          `gorm:"column:created_time;not null"`
+	UpdatedTime sql.NullInt64  `gorm:"column:updated_time"`
+	Status      int            `gorm:"not null"`
 }

 func (SpeedLimit) TableName() string { return "speed_limit" }
@@ -123,6 +130,23 @@ type Tunnel struct {

 func (Tunnel) TableName() string { return "tunnel" }

+type UserQuota struct {
+	UserID           int64  `gorm:"column:user_id;primaryKey"`
+	DailyLimitGB     int64  `gorm:"column:daily_limit_gb;not null;default:0"`
+	MonthlyLimitGB   int64  `gorm:"column:monthly_limit_gb;not null;default:0"`
+	DailyUsedBytes   int64  `gorm:"column:daily_used_bytes;not null;default:0"`
+	MonthlyUsedBytes int64  `gorm:"column:monthly_used_bytes;not null;default:0"`
+	DayKey           int64  `gorm:"column:day_key;not null;default:0"`
+	MonthKey         int64  `gorm:"column:month_key;not null;default:0"`
+	DisabledByQuota  int    `gorm:"column:disabled_by_quota;not null;default:0"`
+	DisabledAt       int64  `gorm:"column:disabled_at;not null;default:0"`
+	PausedForwardIDs string `gorm:"column:paused_forward_ids;type:text;not null;default:''"`
+	CreatedTime      int64  `gorm:"column:created_time;not null"`
+	UpdatedTime      int64  `gorm:"column:updated_time;not null"`
+}
+
+func (UserQuota) TableName() string { return "user_quota" }
+
 type ChainTunnel struct {
 	ID        int64          `gorm:"primaryKey;autoIncrement"`
 	TunnelID  int64          `gorm:"column:tunnel_id;not null"`
@@ -132,6 +156,7 @@ type ChainTunnel struct {
 	Strategy  sql.NullString `gorm:"type:varchar(10)"`
 	Inx       sql.NullInt64  `gorm:"column:inx"`
 	Protocol  sql.NullString `gorm:"type:varchar(10)"`
+	ConnectIP sql.NullString `gorm:"column:connect_ip;type:varchar(45)"`
 }

 func (ChainTunnel) TableName() string { return "chain_tunnel" }
@@ -213,7 +238,7 @@ func (GroupPermissionGrant) TableName() string { return "group_permission_grant"
 type ViteConfig struct {
 	ID    int64  `gorm:"primaryKey;autoIncrement" json:"id"`
 	Name  string `gorm:"type:varchar(200);not null;uniqueIndex" json:"name"`
-	Value string `gorm:"type:varchar(200);not null" json:"value"`
+	Value string `gorm:"type:text;not null" json:"value"`
 	Time  int64  `gorm:"not null" json:"time"`
 }

@@ -314,28 +339,36 @@ type BackupData struct {
 }

 type UserBackup struct {
-	ID            int64  `json:"id"`
-	User          string `json:"user"`
-	Pwd           string `json:"pwd"`
-	RoleID        int    `json:"roleId"`
-	ExpTime       int64  `json:"expTime"`
-	Flow          int64  `json:"flow"`
-	InFlow        int64  `json:"inFlow"`
-	OutFlow       int64  `json:"outFlow"`
-	FlowResetTime int64  `json:"flowResetTime"`
-	Num           int    `json:"num"`
-	CreatedTime   int64  `json:"createdTime"`
-	UpdatedTime   int64  `json:"updatedTime,omitempty"`
-	Status        int    `json:"status"`
+	ID              int64  `json:"id"`
+	User            string `json:"user"`
+	Pwd             string `json:"pwd"`
+	RoleID          int    `json:"roleId"`
+	ExpTime         int64  `json:"expTime"`
+	Flow            int64  `json:"flow"`
+	InFlow          int64  `json:"inFlow"`
+	OutFlow         int64  `json:"outFlow"`
+	FlowResetTime   int64  `json:"flowResetTime"`
+	DailyQuotaGB    int64  `json:"dailyQuotaGB,omitempty"`
+	MonthlyQuotaGB  int64  `json:"monthlyQuotaGB,omitempty"`
+	DisabledByQuota int    `json:"disabledByQuota,omitempty"`
+	QuotaDisabledAt int64  `json:"quotaDisabledAt,omitempty"`
+	Num             int    `json:"num"`
+	CreatedTime     int64  `json:"createdTime"`
+	UpdatedTime     int64  `json:"updatedTime,omitempty"`
+	Status          int    `json:"status"`
 }

 type NodeBackup struct {
 	ID            int64  `json:"id"`
 	Name          string `json:"name"`
+	Remark        string `json:"remark,omitempty"`
+	ExpiryTime    int64  `json:"expiryTime,omitempty"`
+	RenewalCycle  string `json:"renewalCycle,omitempty"`
 	Secret        string `json:"secret"`
 	ServerIP      string `json:"serverIp"`
 	ServerIPv4    string `json:"serverIpV4,omitempty"`
 	ServerIPv6    string `json:"serverIpV6,omitempty"`
+	ExtraIPs      string `json:"extraIPs,omitempty"`
 	Port          string `json:"port"`
 	InterfaceName string `json:"interfaceName,omitempty"`
 	Version       string `json:"version,omitempty"`
@@ -395,6 +428,7 @@ type ForwardBackup struct {
 	UpdatedTime  int64                `json:"updatedTime"`
 	Status       int                  `json:"status"`
 	Inx          int                  `json:"inx"`
+	SpeedID      *int64               `json:"speedId,omitempty"`
 	ForwardPorts *[]ForwardPortBackup `json:"forwardPorts,omitempty"`
 }

@@ -421,8 +455,8 @@ type SpeedLimitBackup struct {
 	ID          int64  `json:"id"`
 	Name        string `json:"name"`
 	Speed       int64  `json:"speed"`
-	TunnelID    int64  `json:"tunnelId"`
-	TunnelName  string `json:"tunnelName"`
+	TunnelID    *int64 `json:"tunnelId,omitempty"`
+	TunnelName  string `json:"tunnelName,omitempty"`
 	CreatedTime int64  `json:"createdTime"`
 	UpdatedTime int64  `json:"updatedTime,omitempty"`
 	Status      int    `json:"status"`
@@ -492,6 +526,7 @@ type ForwardRecord struct {
 	RemoteAddr string
 	Strategy   string
 	Status     int
+	SpeedID    sql.NullInt64
 }

 // TunnelRecord is a minimal tunnel view used by control plane.
@@ -503,10 +538,24 @@ type TunnelRecord struct {
 	TrafficRatio float64
 }

+type UserQuotaView struct {
+	UserID           int64
+	DailyLimitGB     int64
+	MonthlyLimitGB   int64
+	DailyUsedBytes   int64
+	MonthlyUsedBytes int64
+	DayKey           int64
+	MonthKey         int64
+	DisabledByQuota  int
+	DisabledAt       int64
+	PausedForwardIDs string
+}
+
 // ForwardPortRecord is a forward port mapping used by control plane.
 type ForwardPortRecord struct {
 	NodeID int64
 	Port   int
+	InIP   string
 }

 // NodeRecord is a node view used by control plane.
@@ -516,6 +565,7 @@ type NodeRecord struct {
 	ServerIP      string
 	ServerIPv4    string
 	ServerIPv6    string
+	ExtraIPs      string
 	Status        int
 	PortRange     string
 	TCPListenAddr string
@@ -535,6 +585,7 @@ type ChainNodeRecord struct {
 	NodeName  string
 	Protocol  string
 	Strategy  string
+	ConnectIP string
 }

 type UserTunnelLimiterInfo struct {
@@ -563,6 +614,7 @@ type UserTunnelDetail struct {
 	UserID        int64
 	TunnelID      int64
 	TunnelName    string
+	Status        int
 	TunnelFlow    int
 	Flow          int64
 	InFlow        int64
@@ -161,6 +161,7 @@ func (r *Repository) Close() error {
 func autoMigrateAll(db *gorm.DB) error {
 	models := []interface{}{
 		&model.User{},
+		&model.UserQuota{},
 		&model.Forward{},
 		&model.ForwardPort{},
 		&model.Node{},
@@ -260,7 +261,7 @@ func prepareSQLiteLegacyColumns(db *gorm.DB) error {
 	m := db.Migrator()

 	if m.HasTable(&model.Node{}) {
-		for _, field := range []string{"ServerIPV4", "ServerIPV6", "Inx", "IsRemote", "RemoteURL", "RemoteToken", "RemoteConfig"} {
+		for _, field := range []string{"ServerIPV4", "ServerIPV6", "ExtraIPs", "TCPListenAddr", "UDPListenAddr", "Inx", "IsRemote", "RemoteURL", "RemoteToken", "RemoteConfig", "Remark", "ExpiryTime", "RenewalCycle"} {
 			if m.HasColumn(&model.Node{}, field) {
 				continue
 			}
@@ -447,7 +448,7 @@ func (r *Repository) GetUserPackageTunnels(userID int64) ([]model.UserTunnelDeta
 	}
 	var items []model.UserTunnelDetail
 	err := r.db.Model(&model.UserTunnel{}).
-		Select("user_tunnel.id, user_tunnel.user_id, user_tunnel.tunnel_id, tunnel.name AS tunnel_name, tunnel.flow AS tunnel_flow, user_tunnel.flow, user_tunnel.in_flow, user_tunnel.out_flow, user_tunnel.num, user_tunnel.flow_reset_time, user_tunnel.exp_time, user_tunnel.speed_id, speed_limit.name AS speed_limit, speed_limit.speed").
+		Select("user_tunnel.id, user_tunnel.user_id, user_tunnel.tunnel_id, tunnel.name AS tunnel_name, user_tunnel.status, tunnel.flow AS tunnel_flow, user_tunnel.flow, user_tunnel.in_flow, user_tunnel.out_flow, user_tunnel.num, user_tunnel.flow_reset_time, user_tunnel.exp_time, user_tunnel.speed_id, speed_limit.name AS speed_limit, speed_limit.speed").
 		Joins("LEFT JOIN tunnel ON tunnel.id = user_tunnel.tunnel_id").
 		Joins("LEFT JOIN speed_limit ON speed_limit.id = user_tunnel.speed_id").
 		Where("user_tunnel.user_id = ?", userID).
@@ -634,9 +635,13 @@ func (r *Repository) ListNodes() ([]map[string]interface{}, error) {
 	for _, n := range nodes {
 		items = append(items, map[string]interface{}{
 			"id": n.ID, "inx": n.Inx, "name": n.Name,
-			"ip": n.ServerIP, "serverIp": n.ServerIP,
+			"remark":       nullableString(n.Remark),
+			"expiryTime":   nullableInt64(n.ExpiryTime),
+			"renewalCycle": nullableString(n.RenewalCycle),
+			"ip":           n.ServerIP, "serverIp": n.ServerIP,
 			"serverIpV4":    nullableString(n.ServerIPV4),
 			"serverIpV6":    nullableString(n.ServerIPV6),
+			"extraIPs":      nullableString(n.ExtraIPs),
 			"port":          n.Port,
 			"tcpListenAddr": n.TCPListenAddr,
 			"udpListenAddr": n.UDPListenAddr,
@@ -656,19 +661,36 @@ func (r *Repository) ListUsers() ([]map[string]interface{}, error) {
 		return nil, errors.New("repository not initialized")
 	}
 	var users []model.User
-	if err := r.db.Where("role_id != ?", 0).Order("id ASC").Find(&users).Error; err != nil {
+	if err := r.db.Where("role_id != ?", 0).Order("id DESC").Find(&users).Error; err != nil {
+		return nil, err
+	}
+	userIDs := make([]int64, 0, len(users))
+	for _, u := range users {
+		userIDs = append(userIDs, u.ID)
+	}
+	quotaMap, err := r.ListUserQuotaViewsByUserIDs(userIDs, time.Now())
+	if err != nil {
 		return nil, err
 	}
 	items := make([]map[string]interface{}, 0, len(users))
 	for _, u := range users {
-		items = append(items, map[string]interface{}{
+		item := map[string]interface{}{
 			"id": u.ID, "user": u.User, "name": u.User,
 			"roleId": u.RoleID, "status": u.Status,
 			"flow": u.Flow, "num": u.Num, "expTime": u.ExpTime,
 			"flowResetTime": u.FlowResetTime, "createdTime": u.CreatedTime,
 			"updatedTime": nullableInt64(u.UpdatedTime),
 			"inFlow":      u.InFlow, "outFlow": u.OutFlow,
-		})
+		}
+		if quota := quotaMap[u.ID]; quota != nil {
+			item["dailyQuotaGB"] = quota.DailyLimitGB
+			item["monthlyQuotaGB"] = quota.MonthlyLimitGB
+			item["dailyUsedBytes"] = quota.DailyUsedBytes
+			item["monthlyUsedBytes"] = quota.MonthlyUsedBytes
+			item["disabledByQuota"] = quota.DisabledByQuota
+			item["quotaDisabledAt"] = quota.DisabledAt
+		}
+		items = append(items, item)
 	}
 	return items, nil
 }
@@ -678,17 +700,17 @@ func (r *Repository) ListSpeedLimits() ([]map[string]interface{}, error) {
 		return nil, errors.New("repository not initialized")
 	}
 	var limits []model.SpeedLimit
-	if err := r.db.Order("id ASC").Find(&limits).Error; err != nil {
+	if err := r.db.Order("id DESC").Find(&limits).Error; err != nil {
 		return nil, err
 	}
 	items := make([]map[string]interface{}, 0, len(limits))
 	for _, sl := range limits {
-		items = append(items, map[string]interface{}{
+		item := map[string]interface{}{
 			"id": sl.ID, "name": sl.Name, "speed": sl.Speed,
-			"tunnelId": sl.TunnelID, "tunnelName": sl.TunnelName,
 			"status": sl.Status, "createdTime": sl.CreatedTime,
 			"updatedTime": nullableInt64(sl.UpdatedTime),
-		})
+		}
+		items = append(items, item)
 	}
 	return items, nil
 }
@@ -699,24 +721,26 @@ func (r *Repository) ListForwards() ([]map[string]interface{}, error) {
 	}

 	type fwdRow struct {
-		ID          int64
-		UserID      int64
-		UserName    string
-		Name        string
-		TunnelID    int64
-		TunnelName  string
-		RemoteAddr  string
-		Strategy    string
-		InFlow      int64
-		OutFlow     int64
-		CreatedTime int64
-		Status      int
-		Inx         int
+		ID           int64
+		UserID       int64
+		UserName     string
+		Name         string
+		TunnelID     int64
+		TunnelName   string
+		TrafficRatio float64
+		RemoteAddr   string
+		Strategy     string
+		InFlow       int64
+		OutFlow      int64
+		CreatedTime  int64
+		Status       int
+		Inx          int
+		SpeedID      sql.NullInt64
 	}

 	var rows []fwdRow
 	err := r.db.Model(&model.Forward{}).
-		Select("forward.id, forward.user_id, forward.user_name, forward.name, forward.tunnel_id, COALESCE(tunnel.name, '') AS tunnel_name, forward.remote_addr, COALESCE(forward.strategy, 'fifo') AS strategy, forward.in_flow, forward.out_flow, forward.created_time, forward.status, forward.inx").
+		Select("forward.id, forward.user_id, forward.user_name, forward.name, forward.tunnel_id, COALESCE(tunnel.name, '') AS tunnel_name, COALESCE(tunnel.traffic_ratio, 1.0) AS traffic_ratio, forward.remote_addr, COALESCE(forward.strategy, 'fifo') AS strategy, forward.in_flow, forward.out_flow, forward.created_time, forward.status, forward.inx, forward.speed_id").
 		Joins("LEFT JOIN tunnel ON tunnel.id = forward.tunnel_id").
 		Order("forward.inx ASC, forward.id ASC").
 		Find(&rows).Error
@@ -730,14 +754,19 @@ func (r *Repository) ListForwards() ([]map[string]interface{}, error) {
 		if err != nil {
 			return nil, err
 		}
-		items = append(items, map[string]interface{}{
+		item := map[string]interface{}{
 			"id": row.ID, "userId": row.UserID, "userName": row.UserName,
 			"name": row.Name, "tunnelId": row.TunnelID, "tunnelName": row.TunnelName,
-			"inIp": nullableForwardIngress(inIP), "inPort": nullableInt64(inPort),
+			"tunnelTrafficRatio": row.TrafficRatio,
+			"inIp":               nullableForwardIngress(inIP), "inPort": nullableInt64(inPort),
 			"remoteAddr": row.RemoteAddr, "strategy": row.Strategy,
 			"inFlow": row.InFlow, "outFlow": row.OutFlow,
 			"createdTime": row.CreatedTime, "status": row.Status, "inx": int64(row.Inx),
-		})
+		}
+		if row.SpeedID.Valid {
+			item["speedId"] = row.SpeedID.Int64
+		}
+		items = append(items, item)
 	}
 	return items, nil
 }
@@ -761,9 +790,21 @@ func (r *Repository) ListUserAccessibleTunnels(userID int64) ([]map[string]inter
 	if err != nil {
 		return nil, err
 	}
+
+	tunnelIDs := make([]int64, 0, len(rows))
+	for _, rw := range rows {
+		tunnelIDs = append(tunnelIDs, rw.ID)
+	}
+	portRangeMap := r.getTunnelEntryPortRanges(tunnelIDs)
+
 	items := make([]map[string]interface{}, 0, len(rows))
-	for _, r := range rows {
-		items = append(items, map[string]interface{}{"id": r.ID, "name": r.Name})
+	for _, rw := range rows {
+		item := map[string]interface{}{"id": rw.ID, "name": rw.Name}
+		if pr, ok := portRangeMap[rw.ID]; ok {
+			item["portRangeMin"] = pr.min
+			item["portRangeMax"] = pr.max
+		}
+		items = append(items, item)
 	}
 	return items, nil
 }
@@ -782,13 +823,146 @@ func (r *Repository) ListEnabledTunnelSummaries() ([]map[string]interface{}, err
 	if err != nil {
 		return nil, err
 	}
+
+	tunnelIDs := make([]int64, 0, len(rows))
+	for _, rw := range rows {
+		tunnelIDs = append(tunnelIDs, rw.ID)
+	}
+	portRangeMap := r.getTunnelEntryPortRanges(tunnelIDs)
+
 	items := make([]map[string]interface{}, 0, len(rows))
-	for _, r := range rows {
-		items = append(items, map[string]interface{}{"id": r.ID, "name": r.Name})
+	for _, rw := range rows {
+		item := map[string]interface{}{"id": rw.ID, "name": rw.Name}
+		if pr, ok := portRangeMap[rw.ID]; ok {
+			item["portRangeMin"] = pr.min
+			item["portRangeMax"] = pr.max
+		}
+		items = append(items, item)
 	}
 	return items, nil
 }

+type tunnelPortRange struct {
+	min int
+	max int
+}
+
+func (r *Repository) getTunnelEntryPortRanges(tunnelIDs []int64) map[int64]tunnelPortRange {
+	result := make(map[int64]tunnelPortRange)
+	if len(tunnelIDs) == 0 {
+		return result
+	}
+
+	type entryNode struct {
+		TunnelID int64
+		NodeID   int64
+	}
+	var entries []entryNode
+	r.db.Model(&model.ChainTunnel{}).
+		Select("tunnel_id, node_id").
+		Where("tunnel_id IN (?) AND chain_type = ?", tunnelIDs, "1").
+		Find(&entries)
+
+	nodeIDs := make([]int64, 0, len(entries))
+	nodeSet := make(map[int64]struct{})
+	for _, e := range entries {
+		if _, exists := nodeSet[e.NodeID]; !exists {
+			nodeSet[e.NodeID] = struct{}{}
+			nodeIDs = append(nodeIDs, e.NodeID)
+		}
+	}
+
+	type nodePort struct {
+		ID   int64
+		Port string
+	}
+	var nodePorts []nodePort
+	if len(nodeIDs) > 0 {
+		r.db.Model(&model.Node{}).Select("id, port").Where("id IN (?)", nodeIDs).Find(&nodePorts)
+	}
+
+	nodePortMap := make(map[int64]string)
+	for _, np := range nodePorts {
+		nodePortMap[np.ID] = np.Port
+	}
+
+	for _, e := range entries {
+		portSpec := nodePortMap[e.NodeID]
+		if portSpec == "" {
+			continue
+		}
+		minP, maxP := parsePortRangeMinMax(portSpec)
+		if minP <= 0 || maxP <= 0 {
+			continue
+		}
+		pr, exists := result[e.TunnelID]
+		if !exists {
+			result[e.TunnelID] = tunnelPortRange{min: minP, max: maxP}
+		} else {
+			if minP < pr.min {
+				pr.min = minP
+			}
+			if maxP > pr.max {
+				pr.max = maxP
+			}
+			result[e.TunnelID] = pr
+		}
+	}
+	return result
+}
+
+func parsePortRangeMinMax(input string) (int, int) {
+	input = strings.TrimSpace(input)
+	if input == "" {
+		return 0, 0
+	}
+	minPort, maxPort := 0, 0
+	parts := strings.Split(input, ",")
+	for _, part := range parts {
+		part = strings.TrimSpace(part)
+		if part == "" {
+			continue
+		}
+		if strings.Contains(part, "-") {
+			r := strings.SplitN(part, "-", 2)
+			if len(r) != 2 {
+				continue
+			}
+			start, end := parseIntPort(r[0]), parseIntPort(r[1])
+			if start <= 0 || end <= 0 {
+				continue
+			}
+			if end < start {
+				start, end = end, start
+			}
+			if minPort == 0 || start < minPort {
+				minPort = start
+			}
+			if maxPort == 0 || end > maxPort {
+				maxPort = end
+			}
+			continue
+		}
+		p := parseIntPort(part)
+		if p <= 0 {
+			continue
+		}
+		if minPort == 0 || p < minPort {
+			minPort = p
+		}
+		if maxPort == 0 || p > maxPort {
+			maxPort = p
+		}
+	}
+	return minPort, maxPort
+}
+
+func parseIntPort(s string) int {
+	var p int
+	fmt.Sscanf(strings.TrimSpace(s), "%d", &p)
+	return p
+}
+
 func (r *Repository) ListTunnels() ([]map[string]interface{}, error) {
 	if r == nil || r.db == nil {
 		return nil, errors.New("repository not initialized")
@@ -859,6 +1033,9 @@ func (r *Repository) ListTunnels() ([]map[string]interface{}, error) {
 		if c.Strategy.Valid {
 			nodeObj["strategy"] = c.Strategy.String
 		}
+		if c.ConnectIP.Valid {
+			nodeObj["connectIp"] = c.ConnectIP.String
+		}

 		switch chainTypeInt {
 		case 1:
@@ -1270,6 +1447,175 @@ func (r *Repository) ListActivePeerShareRuntimePorts(shareID int64, nodeID int64
 	return ports, nil
 }

+func (r *Repository) ListActiveForwardPeerShareRuntimesByServiceName(serviceName string) ([]model.PeerShareRuntime, error) {
+	if r == nil || r.db == nil {
+		return nil, errors.New("repository not initialized")
+	}
+	var items []model.PeerShareRuntime
+	err := r.db.Where("service_name = ? AND status = 1 AND role = ?", serviceName, "forward").
+		Order("id ASC").
+		Find(&items).Error
+	if err != nil {
+		return nil, err
+	}
+	if items == nil {
+		items = make([]model.PeerShareRuntime, 0)
+	}
+	return items, nil
+}
+
+func (r *Repository) ListActiveForwardPeerShareRuntimesByNodeAndServiceName(nodeID int64, serviceName string) ([]model.PeerShareRuntime, error) {
+	if r == nil || r.db == nil {
+		return nil, errors.New("repository not initialized")
+	}
+	serviceName = strings.TrimSpace(serviceName)
+	if serviceName == "" {
+		return []model.PeerShareRuntime{}, nil
+	}
+	var items []model.PeerShareRuntime
+	err := r.db.Where("node_id = ? AND service_name = ? AND status = 1 AND role = ?", nodeID, serviceName, "forward").
+		Order("id ASC").
+		Find(&items).Error
+	if err != nil {
+		return nil, err
+	}
+	if items == nil {
+		items = make([]model.PeerShareRuntime, 0)
+	}
+	return items, nil
+}
+
+func (r *Repository) ListActiveForwardPeerShareRuntimeServiceNamesByNode(nodeID int64) ([]string, error) {
+	if r == nil || r.db == nil {
+		return nil, errors.New("repository not initialized")
+	}
+	var names []string
+	err := r.db.Model(&model.PeerShareRuntime{}).
+		Where("node_id = ? AND status = 1 AND role = ? AND service_name <> ''", nodeID, "forward").
+		Pluck("service_name", &names).Error
+	if err != nil {
+		return nil, err
+	}
+	if names == nil {
+		names = make([]string, 0)
+	}
+	return names, nil
+}
+
+func (r *Repository) HasRecentUnboundForwardPeerShareRuntimeOnNode(nodeID int64, minUpdatedTime int64) (bool, error) {
+	if r == nil || r.db == nil {
+		return false, errors.New("repository not initialized")
+	}
+	var count int64
+	err := r.db.Model(&model.PeerShareRuntime{}).
+		Where("node_id = ? AND status = 1 AND role = ? AND applied = 0 AND updated_time >= ? AND (service_name = '' OR service_name IS NULL)", nodeID, "forward", minUpdatedTime).
+		Count(&count).Error
+	if err != nil {
+		return false, err
+	}
+	return count > 0, nil
+}
+
+func (r *Repository) GetActiveForwardPeerShareRuntimeByPort(shareID int64, port int) (*model.PeerShareRuntime, error) {
+	if r == nil || r.db == nil {
+		return nil, errors.New("repository not initialized")
+	}
+	var item model.PeerShareRuntime
+	err := r.db.Where("share_id = ? AND port = ? AND status = 1 AND role = ?", shareID, port, "forward").First(&item).Error
+	if errors.Is(err, gorm.ErrRecordNotFound) {
+		return nil, nil
+	}
+	if err != nil {
+		return nil, err
+	}
+	return &item, nil
+}
+
+func (r *Repository) GetActiveForwardPeerShareRuntimeByServiceName(shareID int64, serviceName string) (*model.PeerShareRuntime, error) {
+	if r == nil || r.db == nil {
+		return nil, errors.New("repository not initialized")
+	}
+	serviceName = strings.TrimSpace(serviceName)
+	if shareID <= 0 || serviceName == "" {
+		return nil, nil
+	}
+	var item model.PeerShareRuntime
+	err := r.db.Where("share_id = ? AND service_name = ? AND status = 1 AND role = ?", shareID, serviceName, "forward").
+		Order("id ASC").
+		First(&item).Error
+	if errors.Is(err, gorm.ErrRecordNotFound) {
+		return nil, nil
+	}
+	if err != nil {
+		return nil, err
+	}
+	return &item, nil
+}
+
+func (r *Repository) ExistsActivePeerShareRuntimeOnNodePort(nodeID int64, port int) (bool, error) {
+	if r == nil || r.db == nil {
+		return false, errors.New("repository not initialized")
+	}
+	var count int64
+	err := r.db.Model(&model.PeerShareRuntime{}).
+		Where("node_id = ? AND port = ? AND status = 1", nodeID, port).
+		Count(&count).Error
+	if err != nil {
+		return false, err
+	}
+	return count > 0, nil
+}
+
+func (r *Repository) UpdatePeerShareRuntimeServiceName(id int64, serviceName string, updatedTime int64) error {
+	if r == nil || r.db == nil {
+		return errors.New("repository not initialized")
+	}
+	return r.db.Model(&model.PeerShareRuntime{}).Where("id = ?", id).Updates(map[string]interface{}{
+		"service_name": serviceName,
+		"applied":      1,
+		"updated_time": updatedTime,
+	}).Error
+}
+
+func (r *Repository) MarkPeerShareRuntimeReleasedByPort(shareID int64, port int, updatedTime int64) error {
+	if r == nil || r.db == nil {
+		return errors.New("repository not initialized")
+	}
+	if shareID <= 0 || port <= 0 {
+		return nil
+	}
+	if updatedTime <= 0 {
+		updatedTime = unixMilliNow()
+	}
+	return r.db.Model(&model.PeerShareRuntime{}).Where("share_id = ? AND port = ? AND status = 1", shareID, port).Updates(map[string]interface{}{
+		"status":       0,
+		"applied":      0,
+		"service_name": "",
+		"updated_time": updatedTime,
+	}).Error
+}
+
+func (r *Repository) MarkForwardPeerShareRuntimeReleasedByServiceName(shareID int64, serviceName string, updatedTime int64) error {
+	if r == nil || r.db == nil {
+		return errors.New("repository not initialized")
+	}
+	serviceName = strings.TrimSpace(serviceName)
+	if shareID <= 0 || serviceName == "" {
+		return nil
+	}
+	if updatedTime <= 0 {
+		updatedTime = unixMilliNow()
+	}
+	return r.db.Model(&model.PeerShareRuntime{}).
+		Where("share_id = ? AND status = 1 AND role = ? AND service_name = ?", shareID, "forward", serviceName).
+		Updates(map[string]interface{}{
+			"status":       0,
+			"applied":      0,
+			"service_name": "",
+			"updated_time": updatedTime,
+		}).Error
+}
+
 // ─── FederationTunnelBinding ─────────────────────────────────────────

 func (r *Repository) UpsertFederationTunnelBinding(item *model.FederationTunnelBinding) error {
@@ -1466,6 +1812,14 @@ func (r *Repository) exportUsers() ([]model.UserBackup, error) {
 	if err := r.db.Order("id ASC").Find(&users).Error; err != nil {
 		return nil, err
 	}
+	userIDs := make([]int64, 0, len(users))
+	for _, u := range users {
+		userIDs = append(userIDs, u.ID)
+	}
+	quotaMap, err := r.ListUserQuotaViewsByUserIDs(userIDs, time.Now())
+	if err != nil {
+		return nil, err
+	}
 	out := make([]model.UserBackup, 0, len(users))
 	for _, u := range users {
 		b := model.UserBackup{
@@ -1474,6 +1828,12 @@ func (r *Repository) exportUsers() ([]model.UserBackup, error) {
 			FlowResetTime: u.FlowResetTime, Num: u.Num,
 			CreatedTime: u.CreatedTime, Status: u.Status,
 		}
+		if quota := quotaMap[u.ID]; quota != nil {
+			b.DailyQuotaGB = quota.DailyLimitGB
+			b.MonthlyQuotaGB = quota.MonthlyLimitGB
+			b.DisabledByQuota = quota.DisabledByQuota
+			b.QuotaDisabledAt = quota.DisabledAt
+		}
 		if u.UpdatedTime.Valid {
 			b.UpdatedTime = u.UpdatedTime.Int64
 		}
@@ -1491,11 +1851,15 @@ func (r *Repository) exportNodes() ([]model.NodeBackup, error) {
 	for _, n := range nodes {
 		b := model.NodeBackup{
 			ID: n.ID, Name: n.Name, Secret: n.Secret, ServerIP: n.ServerIP,
+			Remark: n.Remark.String, RenewalCycle: n.RenewalCycle.String,
 			Port: n.Port, HTTP: n.HTTP, TLS: n.TLS, Socks: n.Socks,
 			CreatedTime: n.CreatedTime, Status: n.Status,
 			TCPListenAddr: n.TCPListenAddr, UDPListenAddr: n.UDPListenAddr,
 			Inx: n.Inx, IsRemote: n.IsRemote,
 		}
+		if n.ExpiryTime.Valid {
+			b.ExpiryTime = n.ExpiryTime.Int64
+		}
 		if n.UpdatedTime.Valid {
 			b.UpdatedTime = n.UpdatedTime.Int64
 		}
@@ -1643,7 +2007,6 @@ func (r *Repository) exportSpeedLimits() ([]model.SpeedLimitBackup, error) {
 	for _, sl := range sls {
 		b := model.SpeedLimitBackup{
 			ID: sl.ID, Name: sl.Name, Speed: int64(sl.Speed),
-			TunnelID: sl.TunnelID, TunnelName: sl.TunnelName,
 			CreatedTime: sl.CreatedTime, Status: sl.Status,
 		}
 		if sl.UpdatedTime.Valid {
@@ -1835,6 +2198,39 @@ func importUsers(tx *gorm.DB, users []model.UserBackup, now int64) (int, error)
 		if err != nil {
 			return count, err
 		}
+		if u.DailyQuotaGB > 0 || u.MonthlyQuotaGB > 0 || u.DisabledByQuota != 0 || u.QuotaDisabledAt > 0 {
+			current := time.UnixMilli(now)
+			dayKey := int64(current.Year()*10000 + int(current.Month())*100 + current.Day())
+			monthKey := int64(current.Year()*100 + int(current.Month()))
+			quotaItem := model.UserQuota{
+				UserID:           u.ID,
+				DailyLimitGB:     u.DailyQuotaGB,
+				MonthlyLimitGB:   u.MonthlyQuotaGB,
+				DailyUsedBytes:   0,
+				MonthlyUsedBytes: 0,
+				DayKey:           dayKey,
+				MonthKey:         monthKey,
+				DisabledByQuota:  u.DisabledByQuota,
+				DisabledAt:       u.QuotaDisabledAt,
+				PausedForwardIDs: "",
+				CreatedTime:      now,
+				UpdatedTime:      now,
+			}
+			err = tx.Clauses(clause.OnConflict{
+				Columns: []clause.Column{{Name: "user_id"}},
+				DoUpdates: clause.AssignmentColumns([]string{
+					"daily_limit_gb", "monthly_limit_gb", "daily_used_bytes", "monthly_used_bytes",
+					"day_key", "month_key", "disabled_by_quota", "disabled_at", "paused_forward_ids", "updated_time",
+				}),
+			}).Create(&quotaItem).Error
+			if err != nil {
+				return count, err
+			}
+		} else {
+			if err := tx.Where("user_id = ?", u.ID).Delete(&model.UserQuota{}).Error; err != nil {
+				return count, err
+			}
+		}
 		count++
 	}
 	return count, nil
@@ -1846,6 +2242,9 @@ func importNodes(tx *gorm.DB, nodes []model.NodeBackup, now int64) (int, error)
 		item := model.Node{
 			ID:            n.ID,
 			Name:          n.Name,
+			Remark:        sql.NullString{String: n.Remark, Valid: n.Remark != ""},
+			ExpiryTime:    sql.NullInt64{Int64: n.ExpiryTime, Valid: n.ExpiryTime > 0},
+			RenewalCycle:  sql.NullString{String: n.RenewalCycle, Valid: n.RenewalCycle != ""},
 			Secret:        n.Secret,
 			ServerIP:      n.ServerIP,
 			ServerIPV4:    sql.NullString{String: n.ServerIPv4, Valid: true},
@@ -1870,7 +2269,7 @@ func importNodes(tx *gorm.DB, nodes []model.NodeBackup, now int64) (int, error)
 		err := tx.Clauses(clause.OnConflict{
 			Columns: []clause.Column{{Name: "id"}},
 			DoUpdates: clause.AssignmentColumns([]string{
-				"name", "secret", "server_ip", "server_ip_v4", "server_ip_v6", "port", "interface_name", "version",
+				"name", "remark", "expiry_time", "renewal_cycle", "secret", "server_ip", "server_ip_v4", "server_ip_v6", "port", "interface_name", "version",
 				"http", "tls", "socks", "updated_time", "status", "tcp_listen_addr", "udp_listen_addr",
 				"inx", "is_remote", "remote_url", "remote_token", "remote_config",
 			}),
@@ -2016,8 +2415,8 @@ func importSpeedLimits(tx *gorm.DB, speedLimits []model.SpeedLimitBackup, now in
 			ID:          sl.ID,
 			Name:        sl.Name,
 			Speed:       int(sl.Speed),
-			TunnelID:    sl.TunnelID,
-			TunnelName:  sl.TunnelName,
+			TunnelID:    sql.NullInt64{Int64: 0, Valid: false},
+			TunnelName:  sql.NullString{String: "", Valid: false},
 			CreatedTime: sl.CreatedTime,
 			UpdatedTime: sql.NullInt64{Int64: now, Valid: true},
 			Status:      sl.Status,
@@ -2235,7 +2634,7 @@ func (r *Repository) ListExpiredActiveUserIDs(nowMs int64) ([]int64, error) {
 	}
 	var ids []int64
 	err := r.db.Model(&model.User{}).
-		Where("role_id != 0 AND status = 1 AND exp_time IS NOT NULL AND exp_time < ?", nowMs).
+		Where("role_id != 0 AND status = 1 AND exp_time > 0 AND exp_time < ?", nowMs).
 		Pluck("id", &ids).Error
 	if err != nil {
 		return nil, err
@@ -2255,7 +2654,7 @@ func (r *Repository) ListExpiredActiveUserTunnels(nowMs int64) ([]model.ExpiredU
 		return nil, errors.New("repository not initialized")
 	}
 	var uts []model.UserTunnel
-	err := r.db.Where("status = 1 AND exp_time IS NOT NULL AND exp_time < ?", nowMs).Find(&uts).Error
+	err := r.db.Where("status = 1 AND exp_time > 0 AND exp_time < ?", nowMs).Find(&uts).Error
 	if err != nil {
 		return nil, err
 	}
@@ -2290,9 +2689,12 @@ func (r *Repository) GetUserTunnelByID(id int64) (*model.UserTunnel, error) {

 // ─── Migration ───────────────────────────────────────────────────────

-const currentSchemaVersion = 2
+const currentSchemaVersion = 5

 var ensurePostgresIDDefaultsFn = ensurePostgresIDDefaults
+var migrateViteConfigValueColumnTypeFn = migrateViteConfigValueColumnType
+var migrateSpeedLimitTunnelBindingFn = migrateSpeedLimitTunnelBinding
+var migratePostgresTrafficInt64ColumnsFn = migratePostgresTrafficInt64Columns

 func getSchemaVersion(db *gorm.DB) int {
 	var v model.SchemaVersion
@@ -2344,10 +2746,169 @@ func migrateSchema(db *gorm.DB) error {
 		return err
 	}

+	if ver < 3 {
+		if err := migrateViteConfigValueColumnTypeFn(db); err != nil {
+			return err
+		}
+	}
+
+	if ver < 4 {
+		if err := migrateSpeedLimitTunnelBindingFn(db); err != nil {
+			return err
+		}
+	}
+
+	if ver < 5 {
+		if err := migratePostgresTrafficInt64ColumnsFn(db); err != nil {
+			return err
+		}
+	}
+
 	setSchemaVersion(db, currentSchemaVersion)
 	return nil
 }

+func migrateViteConfigValueColumnType(db *gorm.DB) error {
+	if db == nil {
+		return errors.New("nil db")
+	}
+
+	if !db.Migrator().HasTable(&model.ViteConfig{}) {
+		return nil
+	}
+
+	if db.Dialector.Name() != "postgres" {
+		return nil
+	}
+
+	type columnRow struct {
+		DataType string `gorm:"column:data_type"`
+	}
+
+	var row columnRow
+	if err := db.Raw(
+		`SELECT data_type FROM information_schema.columns
+		 WHERE table_schema = current_schema()
+		   AND table_name = ?
+		   AND column_name = ?`,
+		"vite_config", "value",
+	).Scan(&row).Error; err != nil {
+		return fmt.Errorf("inspect vite_config.value type: %w", err)
+	}
+
+	if strings.EqualFold(row.DataType, "text") {
+		return nil
+	}
+
+	if err := db.Exec(`ALTER TABLE "vite_config" ALTER COLUMN "value" TYPE TEXT`).Error; err != nil {
+		return fmt.Errorf("alter vite_config.value to text: %w", err)
+	}
+
+	return nil
+}
+
+func migrateSpeedLimitTunnelBinding(db *gorm.DB) error {
+	if db == nil {
+		return errors.New("nil db")
+	}
+
+	if !db.Migrator().HasTable(&model.SpeedLimit{}) {
+		return nil
+	}
+
+	if err := db.Model(&model.SpeedLimit{}).
+		Where("tunnel_id IS NOT NULL OR tunnel_name IS NOT NULL").
+		UpdateColumns(map[string]interface{}{
+			"tunnel_id":   nil,
+			"tunnel_name": nil,
+		}).Error; err != nil {
+		return fmt.Errorf("clear speed_limit tunnel binding: %w", err)
+	}
+
+	return nil
+}
+
+func migratePostgresTrafficInt64Columns(db *gorm.DB) error {
+	if db == nil {
+		return errors.New("nil db")
+	}
+
+	if db.Dialector.Name() != "postgres" {
+		return nil
+	}
+
+	type trafficColumn struct {
+		TableName  string
+		ColumnName string
+	}
+
+	columns := []trafficColumn{
+		{TableName: "user", ColumnName: "flow"},
+		{TableName: "user", ColumnName: "in_flow"},
+		{TableName: "user", ColumnName: "out_flow"},
+		{TableName: "forward", ColumnName: "in_flow"},
+		{TableName: "forward", ColumnName: "out_flow"},
+		{TableName: "statistics_flow", ColumnName: "flow"},
+		{TableName: "statistics_flow", ColumnName: "total_flow"},
+		{TableName: "tunnel", ColumnName: "flow"},
+		{TableName: "user_tunnel", ColumnName: "flow"},
+		{TableName: "user_tunnel", ColumnName: "in_flow"},
+		{TableName: "user_tunnel", ColumnName: "out_flow"},
+		{TableName: "peer_share", ColumnName: "max_bandwidth"},
+		{TableName: "peer_share", ColumnName: "current_flow"},
+	}
+
+	for _, column := range columns {
+		if err := alterPostgresColumnToBigIntIfNeeded(db, column.TableName, column.ColumnName); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+func alterPostgresColumnToBigIntIfNeeded(db *gorm.DB, tableName, columnName string) error {
+	if db == nil {
+		return errors.New("nil db")
+	}
+
+	if tableName == "" || columnName == "" {
+		return errors.New("empty table or column name")
+	}
+
+	type columnRow struct {
+		DataType string `gorm:"column:data_type"`
+	}
+
+	var row columnRow
+	if err := db.Raw(
+		`SELECT data_type FROM information_schema.columns
+		 WHERE table_schema = current_schema()
+		   AND table_name = ?
+		   AND column_name = ?`,
+		tableName, columnName,
+	).Scan(&row).Error; err != nil {
+		return fmt.Errorf("inspect %s.%s type: %w", tableName, columnName, err)
+	}
+
+	if row.DataType == "" || strings.EqualFold(row.DataType, "bigint") {
+		return nil
+	}
+	if !strings.EqualFold(row.DataType, "integer") {
+		return nil
+	}
+
+	if err := db.Exec(fmt.Sprintf(
+		"ALTER TABLE %s ALTER COLUMN %s TYPE BIGINT",
+		quoteSQLIdentifier(tableName),
+		quoteSQLIdentifier(columnName),
+	)).Error; err != nil {
+		return fmt.Errorf("alter %s.%s to bigint: %w", tableName, columnName, err)
+	}
+
+	return nil
+}
+
 func ensurePostgresIDDefaults(db *gorm.DB) error {
 	if db.Dialector.Name() != "postgres" {
 		return nil
@@ -2484,10 +3045,11 @@ func resolveForwardIngress(db *gorm.DB, forwardID int64, tunnelID int64) (string
 	type fpRow struct {
 		Port     sql.NullInt64
 		ServerIP sql.NullString
+		InIP     sql.NullString
 	}
 	var fpRows []fpRow
 	err := db.Model(&model.ForwardPort{}).
-		Select("forward_port.port, node.server_ip").
+		Select("forward_port.port, node.server_ip, forward_port.in_ip").
 		Joins("LEFT JOIN node ON node.id = forward_port.node_id").
 		Where("forward_port.forward_id = ?", forwardID).
 		Order("forward_port.id ASC").
@@ -2497,7 +3059,7 @@ func resolveForwardIngress(db *gorm.DB, forwardID int64, tunnelID int64) (string
 	}

 	ports := make([]int64, 0)
-	nodePairs := make([]string, 0)
+	entries := make([]string, 0)
 	seenPorts := make(map[int64]struct{})
 	seenPairs := make(map[string]struct{})

@@ -2509,11 +3071,19 @@ func resolveForwardIngress(db *gorm.DB, forwardID int64, tunnelID int64) (string
 			seenPorts[row.Port.Int64] = struct{}{}
 			ports = append(ports, row.Port.Int64)
 		}
-		if row.ServerIP.Valid && strings.TrimSpace(row.ServerIP.String) != "" {
-			pair := fmt.Sprintf("%s:%d", strings.TrimSpace(row.ServerIP.String), row.Port.Int64)
+
+		var ip string
+		if row.InIP.Valid && strings.TrimSpace(row.InIP.String) != "" {
+			ip = strings.TrimSpace(row.InIP.String)
+		} else if row.ServerIP.Valid && strings.TrimSpace(row.ServerIP.String) != "" {
+			ip = strings.TrimSpace(row.ServerIP.String)
+		}
+
+		if ip != "" {
+			pair := fmt.Sprintf("%s:%d", ip, row.Port.Int64)
 			if _, ok := seenPairs[pair]; !ok {
 				seenPairs[pair] = struct{}{}
-				nodePairs = append(nodePairs, pair)
+				entries = append(entries, pair)
 			}
 		}
 	}
@@ -2524,27 +3094,6 @@ func resolveForwardIngress(db *gorm.DB, forwardID int64, tunnelID int64) (string

 	inPort := sql.NullInt64{Int64: ports[0], Valid: true}

-	entries := make([]string, 0)
-	if tunnelInIP.Valid && strings.TrimSpace(tunnelInIP.String) != "" {
-		tunnelIPs := strings.Split(tunnelInIP.String, ",")
-		seen := make(map[string]struct{})
-		for _, ip := range tunnelIPs {
-			ip = strings.TrimSpace(ip)
-			if ip == "" {
-				continue
-			}
-			if _, ok := seen[ip]; ok {
-				continue
-			}
-			seen[ip] = struct{}{}
-			for _, port := range ports {
-				entries = append(entries, fmt.Sprintf("%s:%d", ip, port))
-			}
-		}
-	} else {
-		entries = append(entries, nodePairs...)
-	}
-
 	return strings.Join(entries, ","), inPort, nil
 }

@@ -46,6 +46,7 @@ func (r *Repository) ListForwardsByTunnel(tunnelID int64) ([]model.ForwardRecord
 			RemoteAddr: f.RemoteAddr,
 			Strategy:   f.Strategy,
 			Status:     f.Status,
+			SpeedID:    f.SpeedID,
 		})
 	}
 	for i := range rows {
@@ -101,11 +102,34 @@ func (r *Repository) ListForwardPorts(forwardID int64) ([]model.ForwardPortRecor
 	}
 	rows := make([]model.ForwardPortRecord, 0, len(ports))
 	for _, p := range ports {
-		rows = append(rows, model.ForwardPortRecord{NodeID: p.NodeID, Port: p.Port})
+		inIP := ""
+		if p.InIP.Valid {
+			inIP = p.InIP.String
+		}
+		rows = append(rows, model.ForwardPortRecord{NodeID: p.NodeID, Port: p.Port, InIP: inIP})
 	}
 	return rows, nil
 }

+func (r *Repository) HasOtherForwardOnNodePort(nodeID int64, port int, currentForwardID int64) (bool, error) {
+	if r == nil || r.db == nil {
+		return false, errors.New("repository not initialized")
+	}
+	if nodeID <= 0 || port <= 0 {
+		return false, nil
+	}
+
+	var count int64
+	err := r.db.Model(&model.ForwardPort{}).
+		Where("node_id = ? AND port = ? AND forward_id <> ?", nodeID, port, currentForwardID).
+		Count(&count).Error
+	if err != nil {
+		return false, err
+	}
+
+	return count > 0, nil
+}
+
 func (r *Repository) GetTunnelOutProtocol(tunnelID int64) (string, error) {
 	if r == nil || r.db == nil {
 		return "", errors.New("repository not initialized")
@@ -176,6 +200,9 @@ func nodeRecordFromModel(n *model.Node) *model.NodeRecord {
 	if n.ServerIPV6.Valid {
 		rec.ServerIPv6 = strings.TrimSpace(n.ServerIPV6.String)
 	}
+	if n.ExtraIPs.Valid {
+		rec.ExtraIPs = strings.TrimSpace(n.ExtraIPs.String)
+	}
 	if n.InterfaceName.Valid {
 		rec.InterfaceName = strings.TrimSpace(n.InterfaceName.String)
 	}
@@ -288,10 +315,11 @@ func (r *Repository) ListChainNodesForTunnel(tunnelID int64) ([]model.ChainNodeR
 		Name      sql.NullString
 		Protocol  sql.NullString
 		Strategy  sql.NullString
+		ConnectIP sql.NullString
 	}
 	var rows []row
 	err := r.db.Model(&model.ChainTunnel{}).
-		Select("chain_tunnel.chain_type, chain_tunnel.inx, chain_tunnel.node_id, chain_tunnel.port, node.name, chain_tunnel.protocol, chain_tunnel.strategy").
+		Select("chain_tunnel.chain_type, chain_tunnel.inx, chain_tunnel.node_id, chain_tunnel.port, node.name, chain_tunnel.protocol, chain_tunnel.strategy, chain_tunnel.connect_ip").
 		Joins("LEFT JOIN node ON node.id = chain_tunnel.node_id").
 		Where("chain_tunnel.tunnel_id = ?", tunnelID).
 		Order("chain_tunnel.chain_type ASC, chain_tunnel.inx ASC, chain_tunnel.id ASC").
@@ -336,6 +364,9 @@ func (r *Repository) ListChainNodesForTunnel(tunnelID int64) ([]model.ChainNodeR
 		} else {
 			item.Strategy = row.Strategy.String
 		}
+		if row.ConnectIP.Valid {
+			item.ConnectIP = row.ConnectIP.String
+		}
 		result = append(result, item)
 	}
 	return result, nil
@@ -38,6 +38,14 @@ type FederationBindingRow struct {
 	UpdatedTime     int64
 }

+type ActiveForwardPortRow struct {
+	ForwardID   int64
+	TunnelID    int64
+	TunnelName  string
+	Port        int
+	UpdatedTime int64
+}
+
 // ListRemoteNodes returns all nodes with is_remote=1, ordered by id desc.
 func (r *Repository) ListRemoteNodes() ([]RemoteNodeRow, error) {
 	if r == nil || r.db == nil {
@@ -87,6 +95,27 @@ func (r *Repository) ListActiveBindingsForNode(nodeID int64) ([]FederationBindin
 	return result, nil
 }

+func (r *Repository) ListActiveForwardPortsForNode(nodeID int64) ([]ActiveForwardPortRow, error) {
+	if r == nil || r.db == nil {
+		return nil, errors.New("repository not initialized")
+	}
+	var result []ActiveForwardPortRow
+	err := r.db.Model(&model.ForwardPort{}).
+		Select("forward_port.forward_id, forward.tunnel_id, COALESCE(tunnel.name, '') AS tunnel_name, forward_port.port, forward.updated_time").
+		Joins("JOIN forward ON forward.id = forward_port.forward_id").
+		Joins("LEFT JOIN tunnel ON tunnel.id = forward.tunnel_id").
+		Where("forward_port.node_id = ? AND forward_port.port > 0", nodeID).
+		Order("forward_port.port ASC, forward_port.id ASC").
+		Find(&result).Error
+	if err != nil {
+		return nil, err
+	}
+	if result == nil {
+		result = make([]ActiveForwardPortRow, 0)
+	}
+	return result, nil
+}
+
 // GetNodeBasicInfo returns the name, server_ip, and status for a given node.
 func (r *Repository) GetNodeBasicInfo(nodeID int64) (*NodeBasicInfo, error) {
 	if r == nil || r.db == nil {
@@ -199,7 +228,6 @@ func (r *Repository) ListTunnelIDsByNamePrefix(prefix string) ([]int64, error) {
 	return ids, nil
 }

-// NextIndex returns COALESCE(MAX(inx), -1) + 1 for the given table.
 func (r *Repository) NextIndex(table string) int {
 	if r == nil || r.db == nil {
 		return 0
@@ -222,7 +250,7 @@ func (r *Repository) NextIndex(table string) int {
 	var row inxRow
 	err := r.db.Model(modelRef).
 		Select("inx").
-		Order("inx DESC").
+		Order("inx ASC, id ASC").
 		Limit(1).
 		Take(&row).Error
 	if errors.Is(err, gorm.ErrRecordNotFound) {
@@ -231,10 +259,7 @@ func (r *Repository) NextIndex(table string) int {
 	if err != nil {
 		return 0
 	}
-	if row.Inx < 0 {
-		return 0
-	}
-	return row.Inx + 1
+	return row.Inx - 1
 }

 // CreateRemoteNode inserts a new remote node.
@@ -38,6 +38,7 @@ func (r *Repository) ListActiveForwardsByUser(userID int64) ([]model.ForwardReco
 			RemoteAddr: f.RemoteAddr,
 			Strategy:   f.Strategy,
 			Status:     f.Status,
+			SpeedID:    f.SpeedID,
 		})
 	}
 	for i := range rows {
@@ -68,6 +69,7 @@ func (r *Repository) ListActiveForwardsByUserTunnel(userID, tunnelID int64) ([]m
 			RemoteAddr: f.RemoteAddr,
 			Strategy:   f.Strategy,
 			Status:     f.Status,
+			SpeedID:    f.SpeedID,
 		})
 	}
 	for i := range rows {
@@ -99,6 +101,7 @@ func (r *Repository) GetForwardRecord(forwardID int64) (*model.ForwardRecord, er
 		RemoteAddr: f.RemoteAddr,
 		Strategy:   f.Strategy,
 		Status:     f.Status,
+		SpeedID:    f.SpeedID,
 	}
 	if strings.TrimSpace(fr.Strategy) == "" {
 		fr.Strategy = "fifo"
@@ -169,3 +172,15 @@ func (r *Repository) SpeedLimitExists(id int64) (bool, error) {
 	}
 	return count > 0, nil
 }
+
+func (r *Repository) GetSpeedLimitSpeed(id int64) (int, error) {
+	if r == nil || r.db == nil {
+		return 0, errors.New("repository not initialized")
+	}
+	var sl model.SpeedLimit
+	err := r.db.Select("speed").Where("id = ?", id).First(&sl).Error
+	if err != nil {
+		return 0, err
+	}
+	return sl.Speed, nil
+}
@@ -1,14 +1,63 @@
 package repo

 import (
+	"database/sql"
 	"errors"
+	"strings"
 	"testing"

 	gsqlite "github.com/glebarez/sqlite"
+	"go-backend/internal/store/model"
 	"gorm.io/gorm"
 	"gorm.io/gorm/logger"
 )

+func TestPrepareSQLiteLegacyColumnsAddsNodeMetadataColumns(t *testing.T) {
+	db, err := gorm.Open(gsqlite.Open(":memory:"), &gorm.Config{
+		Logger: logger.Default.LogMode(logger.Silent),
+	})
+	if err != nil {
+		t.Fatalf("open sqlite: %v", err)
+	}
+	t.Cleanup(func() {
+		sqlDB, _ := db.DB()
+		if sqlDB != nil {
+			_ = sqlDB.Close()
+		}
+	})
+
+	if err := db.Exec(`
+		CREATE TABLE node (
+			id INTEGER PRIMARY KEY AUTOINCREMENT,
+			name VARCHAR(100) NOT NULL,
+			secret VARCHAR(100) NOT NULL,
+			server_ip VARCHAR(100) NOT NULL,
+			port TEXT NOT NULL,
+			interface_name VARCHAR(200),
+			version VARCHAR(100),
+			http INTEGER NOT NULL DEFAULT 0,
+			tls INTEGER NOT NULL DEFAULT 0,
+			socks INTEGER NOT NULL DEFAULT 0,
+			created_time INTEGER NOT NULL,
+			updated_time INTEGER,
+			status INTEGER NOT NULL
+		)
+	`).Error; err != nil {
+		t.Fatalf("create legacy node table: %v", err)
+	}
+
+	if err := prepareSQLiteLegacyColumns(db); err != nil {
+		t.Fatalf("prepareSQLiteLegacyColumns: %v", err)
+	}
+
+	m := db.Migrator()
+	for _, field := range []string{"Remark", "ExpiryTime", "RenewalCycle"} {
+		if !m.HasColumn(&model.Node{}, field) {
+			t.Fatalf("expected node.%s column to exist", field)
+		}
+	}
+}
+
 func TestMigrateSchemaRunsPostgresIDRepairEvenAtCurrentVersion(t *testing.T) {
 	db, err := gorm.Open(gsqlite.Open(":memory:"), &gorm.Config{
 		Logger: logger.Default.LogMode(logger.Silent),
@@ -83,3 +132,281 @@ func TestMigrateSchemaReturnsPostgresIDRepairError(t *testing.T) {
 		t.Fatalf("expected error %v, got %v", wantErr, err)
 	}
 }
+
+func TestMigrateSchemaRunsViteConfigValueMigrationForLegacySchema(t *testing.T) {
+	db, err := gorm.Open(gsqlite.Open(":memory:"), &gorm.Config{
+		Logger: logger.Default.LogMode(logger.Silent),
+	})
+	if err != nil {
+		t.Fatalf("open sqlite: %v", err)
+	}
+	t.Cleanup(func() {
+		sqlDB, _ := db.DB()
+		if sqlDB != nil {
+			_ = sqlDB.Close()
+		}
+	})
+
+	if err := db.Exec(`CREATE TABLE schema_version (version INTEGER NOT NULL DEFAULT 0)`).Error; err != nil {
+		t.Fatalf("create schema_version: %v", err)
+	}
+	if err := db.Exec(`INSERT INTO schema_version(version) VALUES(?)`, 2).Error; err != nil {
+		t.Fatalf("seed schema_version: %v", err)
+	}
+
+	originalIDRepair := ensurePostgresIDDefaultsFn
+	ensurePostgresIDDefaultsFn = func(db *gorm.DB) error {
+		return nil
+	}
+	t.Cleanup(func() {
+		ensurePostgresIDDefaultsFn = originalIDRepair
+	})
+
+	called := 0
+	originalMigrate := migrateViteConfigValueColumnTypeFn
+	migrateViteConfigValueColumnTypeFn = func(db *gorm.DB) error {
+		called++
+		return nil
+	}
+	t.Cleanup(func() {
+		migrateViteConfigValueColumnTypeFn = originalMigrate
+	})
+
+	if err := migrateSchema(db); err != nil {
+		t.Fatalf("migrateSchema: %v", err)
+	}
+
+	if called != 1 {
+		t.Fatalf("expected vite_config migration to run once, got %d", called)
+	}
+}
+
+func TestMigrateSchemaReturnsViteConfigMigrationError(t *testing.T) {
+	db, err := gorm.Open(gsqlite.Open(":memory:"), &gorm.Config{
+		Logger: logger.Default.LogMode(logger.Silent),
+	})
+	if err != nil {
+		t.Fatalf("open sqlite: %v", err)
+	}
+	t.Cleanup(func() {
+		sqlDB, _ := db.DB()
+		if sqlDB != nil {
+			_ = sqlDB.Close()
+		}
+	})
+
+	if err := db.Exec(`CREATE TABLE schema_version (version INTEGER NOT NULL DEFAULT 0)`).Error; err != nil {
+		t.Fatalf("create schema_version: %v", err)
+	}
+	if err := db.Exec(`INSERT INTO schema_version(version) VALUES(?)`, 2).Error; err != nil {
+		t.Fatalf("seed schema_version: %v", err)
+	}
+
+	originalIDRepair := ensurePostgresIDDefaultsFn
+	ensurePostgresIDDefaultsFn = func(db *gorm.DB) error {
+		return nil
+	}
+	t.Cleanup(func() {
+		ensurePostgresIDDefaultsFn = originalIDRepair
+	})
+
+	wantErr := errors.New("vite config migration failed")
+	originalMigrate := migrateViteConfigValueColumnTypeFn
+	migrateViteConfigValueColumnTypeFn = func(db *gorm.DB) error {
+		return wantErr
+	}
+	t.Cleanup(func() {
+		migrateViteConfigValueColumnTypeFn = originalMigrate
+	})
+
+	err = migrateSchema(db)
+	if !errors.Is(err, wantErr) {
+		t.Fatalf("expected error %v, got %v", wantErr, err)
+	}
+}
+
+func TestMigrateSchemaClearsSpeedLimitTunnelBinding(t *testing.T) {
+	db, err := gorm.Open(gsqlite.Open(":memory:"), &gorm.Config{
+		Logger: logger.Default.LogMode(logger.Silent),
+	})
+	if err != nil {
+		t.Fatalf("open sqlite: %v", err)
+	}
+	t.Cleanup(func() {
+		sqlDB, _ := db.DB()
+		if sqlDB != nil {
+			_ = sqlDB.Close()
+		}
+	})
+
+	if err := db.Exec(`CREATE TABLE schema_version (version INTEGER NOT NULL DEFAULT 0)`).Error; err != nil {
+		t.Fatalf("create schema_version: %v", err)
+	}
+	if err := db.Exec(`INSERT INTO schema_version(version) VALUES(?)`, 3).Error; err != nil {
+		t.Fatalf("seed schema_version: %v", err)
+	}
+	if err := db.Exec(`
+		CREATE TABLE speed_limit (
+			id INTEGER PRIMARY KEY AUTOINCREMENT,
+			name VARCHAR(100) NOT NULL,
+			speed INTEGER NOT NULL,
+			tunnel_id INTEGER,
+			tunnel_name VARCHAR(100),
+			created_time INTEGER NOT NULL,
+			updated_time INTEGER,
+			status INTEGER NOT NULL
+		)
+	`).Error; err != nil {
+		t.Fatalf("create speed_limit: %v", err)
+	}
+	if err := db.Exec(`
+		INSERT INTO speed_limit(name, speed, tunnel_id, tunnel_name, created_time, updated_time, status)
+		VALUES(?, ?, ?, ?, ?, ?, ?)
+	`, "legacy-speed-limit", 100, 101, "legacy-tunnel", 1, 1, 1).Error; err != nil {
+		t.Fatalf("seed speed_limit: %v", err)
+	}
+
+	originalIDRepair := ensurePostgresIDDefaultsFn
+	ensurePostgresIDDefaultsFn = func(db *gorm.DB) error {
+		return nil
+	}
+	t.Cleanup(func() {
+		ensurePostgresIDDefaultsFn = originalIDRepair
+	})
+
+	if err := migrateSchema(db); err != nil {
+		t.Fatalf("migrateSchema: %v", err)
+	}
+
+	var tunnelID sql.NullInt64
+	var tunnelName sql.NullString
+	if err := db.Raw(`SELECT tunnel_id, tunnel_name FROM speed_limit WHERE name = ?`, "legacy-speed-limit").Row().Scan(&tunnelID, &tunnelName); err != nil {
+		t.Fatalf("query speed_limit: %v", err)
+	}
+	if tunnelID.Valid {
+		t.Fatalf("expected tunnel_id cleared to NULL, got %d", tunnelID.Int64)
+	}
+	if tunnelName.Valid {
+		t.Fatalf("expected tunnel_name cleared to NULL, got %q", tunnelName.String)
+	}
+
+	var schemaVersion int
+	if err := db.Raw(`SELECT version FROM schema_version LIMIT 1`).Row().Scan(&schemaVersion); err != nil {
+		t.Fatalf("query schema_version: %v", err)
+	}
+	if schemaVersion != currentSchemaVersion {
+		t.Fatalf("expected schema version %d, got %d", currentSchemaVersion, schemaVersion)
+	}
+}
+
+func TestMigrateSchemaRunsTrafficInt64MigrationForLegacySchema(t *testing.T) {
+	db, err := gorm.Open(gsqlite.Open(":memory:"), &gorm.Config{
+		Logger: logger.Default.LogMode(logger.Silent),
+	})
+	if err != nil {
+		t.Fatalf("open sqlite: %v", err)
+	}
+	t.Cleanup(func() {
+		sqlDB, _ := db.DB()
+		if sqlDB != nil {
+			_ = sqlDB.Close()
+		}
+	})
+
+	if err := db.Exec(`CREATE TABLE schema_version (version INTEGER NOT NULL DEFAULT 0)`).Error; err != nil {
+		t.Fatalf("create schema_version: %v", err)
+	}
+	if err := db.Exec(`INSERT INTO schema_version(version) VALUES(?)`, 4).Error; err != nil {
+		t.Fatalf("seed schema_version: %v", err)
+	}
+
+	originalIDRepair := ensurePostgresIDDefaultsFn
+	ensurePostgresIDDefaultsFn = func(db *gorm.DB) error {
+		return nil
+	}
+	t.Cleanup(func() {
+		ensurePostgresIDDefaultsFn = originalIDRepair
+	})
+
+	called := 0
+	originalMigrate := migratePostgresTrafficInt64ColumnsFn
+	migratePostgresTrafficInt64ColumnsFn = func(db *gorm.DB) error {
+		called++
+		return nil
+	}
+	t.Cleanup(func() {
+		migratePostgresTrafficInt64ColumnsFn = originalMigrate
+	})
+
+	if err := migrateSchema(db); err != nil {
+		t.Fatalf("migrateSchema: %v", err)
+	}
+
+	if called != 1 {
+		t.Fatalf("expected traffic bigint migration to run once, got %d", called)
+	}
+
+	var schemaVersion int
+	if err := db.Raw(`SELECT version FROM schema_version LIMIT 1`).Row().Scan(&schemaVersion); err != nil {
+		t.Fatalf("query schema_version: %v", err)
+	}
+	if schemaVersion != currentSchemaVersion {
+		t.Fatalf("expected schema version %d, got %d", currentSchemaVersion, schemaVersion)
+	}
+}
+
+func TestMigrateSchemaReturnsTrafficInt64MigrationError(t *testing.T) {
+	db, err := gorm.Open(gsqlite.Open(":memory:"), &gorm.Config{
+		Logger: logger.Default.LogMode(logger.Silent),
+	})
+	if err != nil {
+		t.Fatalf("open sqlite: %v", err)
+	}
+	t.Cleanup(func() {
+		sqlDB, _ := db.DB()
+		if sqlDB != nil {
+			_ = sqlDB.Close()
+		}
+	})
+
+	if err := db.Exec(`CREATE TABLE schema_version (version INTEGER NOT NULL DEFAULT 0)`).Error; err != nil {
+		t.Fatalf("create schema_version: %v", err)
+	}
+	if err := db.Exec(`INSERT INTO schema_version(version) VALUES(?)`, 4).Error; err != nil {
+		t.Fatalf("seed schema_version: %v", err)
+	}
+
+	originalIDRepair := ensurePostgresIDDefaultsFn
+	ensurePostgresIDDefaultsFn = func(db *gorm.DB) error {
+		return nil
+	}
+	t.Cleanup(func() {
+		ensurePostgresIDDefaultsFn = originalIDRepair
+	})
+
+	wantErr := errors.New("traffic bigint migration failed")
+	originalMigrate := migratePostgresTrafficInt64ColumnsFn
+	migratePostgresTrafficInt64ColumnsFn = func(db *gorm.DB) error {
+		return wantErr
+	}
+	t.Cleanup(func() {
+		migratePostgresTrafficInt64ColumnsFn = originalMigrate
+	})
+
+	err = migrateSchema(db)
+	if !errors.Is(err, wantErr) {
+		t.Fatalf("expected error %v, got %v", wantErr, err)
+	}
+}
+
+func TestAlterPostgresColumnToBigIntIfNeededValidatesNames(t *testing.T) {
+	if err := alterPostgresColumnToBigIntIfNeeded(nil, "peer_share", "max_bandwidth"); err == nil || !strings.Contains(err.Error(), "nil db") {
+		t.Fatalf("expected nil db error, got %v", err)
+	}
+	if err := alterPostgresColumnToBigIntIfNeeded(&gorm.DB{}, "", "max_bandwidth"); err == nil || !strings.Contains(err.Error(), "empty table or column name") {
+		t.Fatalf("expected empty name error, got %v", err)
+	}
+	if err := alterPostgresColumnToBigIntIfNeeded(&gorm.DB{}, "peer_share", ""); err == nil || !strings.Contains(err.Error(), "empty table or column name") {
+		t.Fatalf("expected empty name error, got %v", err)
+	}
+}
@@ -3,6 +3,7 @@ package repo
 import (
 	"database/sql"
 	"errors"
+	"fmt"
 	"sort"
 	"strconv"
 	"strings"
@@ -144,6 +145,9 @@ func (r *Repository) DeleteUserCascade(userID int64) error {
 		if err := tx.Where("user_id = ?", userID).Delete(&model.StatisticsFlow{}).Error; err != nil {
 			return err
 		}
+		if err := tx.Where("user_id = ?", userID).Delete(&model.UserQuota{}).Error; err != nil {
+			return err
+		}
 		return tx.Where("id = ?", userID).Delete(&model.User{}).Error
 	})
 }
@@ -196,16 +200,20 @@ func (r *Repository) GetUserDefaultsForTunnel(userID int64) (flow int64, num int
 	return user.Flow, user.Num, user.ExpTime, user.FlowResetTime, nil
 }

-func (r *Repository) CreateNode(name, secret, serverIP string, serverIPV4, serverIPV6, port, interfaceName, version interface{}, httpFlag, tlsFlag, socksFlag int, now int64, status int, tcpAddr, udpAddr string, inx, isRemote int, remoteURL, remoteToken, remoteConfig interface{}) error {
+func (r *Repository) CreateNode(name, secret, serverIP string, serverIPV4, serverIPV6, port, interfaceName, version, remark, expiryTime, renewalCycle interface{}, httpFlag, tlsFlag, socksFlag int, now int64, status int, tcpAddr, udpAddr string, inx, isRemote int, remoteURL, remoteToken, remoteConfig, extraIPs interface{}) error {
 	if r == nil || r.db == nil {
 		return errors.New("repository not initialized")
 	}
 	node := model.Node{
 		Name:          name,
+		Remark:        nullStringFromInterface(remark),
+		ExpiryTime:    nullInt64FromInterface(expiryTime),
+		RenewalCycle:  nullStringFromInterface(renewalCycle),
 		Secret:        secret,
 		ServerIP:      serverIP,
 		ServerIPV4:    nullStringFromInterface(serverIPV4),
 		ServerIPV6:    nullStringFromInterface(serverIPV6),
+		ExtraIPs:      nullStringFromInterface(extraIPs),
 		Port:          stringFromInterface(port),
 		InterfaceName: nullStringFromInterface(interfaceName),
 		Version:       nullStringFromInterface(version),
@@ -238,25 +246,30 @@ func (r *Repository) GetNodeStatusFields(nodeID int64) (status, httpFlag, tlsFla
 	return node.Status, node.HTTP, node.TLS, node.Socks, nil
 }

-func (r *Repository) UpdateNode(id int64, name, serverIP string, serverIPV4, serverIPV6, port, interfaceName interface{}, httpFlag, tlsFlag, socksFlag int, tcpAddr, udpAddr string, now int64) error {
+func (r *Repository) UpdateNode(id int64, name, serverIP string, serverIPV4, serverIPV6, port, interfaceName, extraIPs, remark, expiryTime, renewalCycle interface{}, httpFlag, tlsFlag, socksFlag int, tcpAddr, udpAddr string, now int64) error {
 	if r == nil || r.db == nil {
 		return errors.New("repository not initialized")
 	}
 	return r.db.Model(&model.Node{}).
 		Where("id = ?", id).
 		Updates(map[string]interface{}{
-			"name":            name,
-			"server_ip":       serverIP,
-			"server_ip_v4":    nullStringFromInterface(serverIPV4),
-			"server_ip_v6":    nullStringFromInterface(serverIPV6),
-			"port":            stringFromInterface(port),
-			"interface_name":  nullStringFromInterface(interfaceName),
-			"http":            httpFlag,
-			"tls":             tlsFlag,
-			"socks":           socksFlag,
-			"tcp_listen_addr": tcpAddr,
-			"udp_listen_addr": udpAddr,
-			"updated_time":    sql.NullInt64{Int64: now, Valid: true},
+			"name":                      name,
+			"remark":                    nullStringFromInterface(remark),
+			"expiry_time":               nullInt64FromInterface(expiryTime),
+			"renewal_cycle":             nullStringFromInterface(renewalCycle),
+			"server_ip":                 serverIP,
+			"server_ip_v4":              nullStringFromInterface(serverIPV4),
+			"server_ip_v6":              nullStringFromInterface(serverIPV6),
+			"extra_ips":                 nullStringFromInterface(extraIPs),
+			"port":                      stringFromInterface(port),
+			"interface_name":            nullStringFromInterface(interfaceName),
+			"http":                      httpFlag,
+			"tls":                       tlsFlag,
+			"socks":                     socksFlag,
+			"tcp_listen_addr":           tcpAddr,
+			"udp_listen_addr":           udpAddr,
+			"updated_time":              sql.NullInt64{Int64: now, Valid: true},
+			"expiry_reminder_dismissed": 0,
 		}).Error
 }

@@ -296,6 +309,15 @@ func (r *Repository) UpdateNodeOrder(nodeID int64, inx int, now int64) {
 		}).Error
 }

+func (r *Repository) UpdateNodeExpiryReminderDismissed(nodeID int64, dismissed int) error {
+	if r == nil || r.db == nil {
+		return errors.New("repository not initialized")
+	}
+	return r.db.Model(&model.Node{}).
+		Where("id = ?", nodeID).
+		Update("expiry_reminder_dismissed", dismissed).Error
+}
+
 func (r *Repository) DeleteNodeCascade(nodeID int64) error {
 	if r == nil || r.db == nil {
 		return errors.New("repository not initialized")
@@ -395,7 +417,7 @@ func (r *Repository) DeleteChainTunnelsByTunnelTx(tx *gorm.DB, tunnelID int64) e
 	return tx.Where("tunnel_id = ?", tunnelID).Delete(&model.ChainTunnel{}).Error
 }

-func (r *Repository) CreateChainTunnelTx(tx *gorm.DB, tunnelID int64, chainType string, nodeID int64, port sql.NullInt64, strategy string, inx int, protocol string) error {
+func (r *Repository) CreateChainTunnelTx(tx *gorm.DB, tunnelID int64, chainType string, nodeID int64, port sql.NullInt64, strategy string, inx int, protocol string, connectIp string) error {
 	if tx == nil {
 		return errors.New("database unavailable")
 	}
@@ -407,6 +429,7 @@ func (r *Repository) CreateChainTunnelTx(tx *gorm.DB, tunnelID int64, chainType
 		Strategy:  nullStringFromInterface(strategy),
 		Inx:       nullInt64FromInterface(inx),
 		Protocol:  nullStringFromInterface(protocol),
+		ConnectIP: sql.NullString{String: connectIp, Valid: connectIp != ""},
 	}
 	return tx.Create(&ct).Error
 }
@@ -522,9 +545,6 @@ func (r *Repository) DeleteTunnelCascade(tunnelID int64) error {
 		if err := tx.Where("tunnel_id = ?", tunnelID).Delete(&model.UserTunnel{}).Error; err != nil {
 			return err
 		}
-		if err := tx.Where("tunnel_id = ?", tunnelID).Delete(&model.SpeedLimit{}).Error; err != nil {
-			return err
-		}
 		if err := tx.Where("tunnel_id = ?", tunnelID).Delete(&model.ChainTunnel{}).Error; err != nil {
 			return err
 		}
@@ -535,17 +555,6 @@ func (r *Repository) DeleteTunnelCascade(tunnelID int64) error {
 	})
 }

-func (r *Repository) GetTunnelNameByID(tunnelID int64) string {
-	if r == nil || r.db == nil {
-		return ""
-	}
-	var tunnel model.Tunnel
-	if err := r.db.Select("name").Where("id = ?", tunnelID).First(&tunnel).Error; err != nil {
-		return ""
-	}
-	return tunnel.Name
-}
-
 func (r *Repository) TunnelEntryNodeIDs(tunnelID int64) ([]int64, error) {
 	if r == nil || r.db == nil {
 		return nil, errors.New("repository not initialized")
@@ -657,7 +666,7 @@ func (r *Repository) GetMinForwardPort(forwardID int64) sql.NullInt64 {
 	return p
 }

-func (r *Repository) UpdateForward(id int64, name string, tunnelID int64, remoteAddr, strategy string, now int64) error {
+func (r *Repository) UpdateForward(id int64, name string, tunnelID int64, remoteAddr, strategy string, now int64, speedID interface{}) error {
 	if r == nil || r.db == nil {
 		return errors.New("repository not initialized")
 	}
@@ -668,6 +677,7 @@ func (r *Repository) UpdateForward(id int64, name string, tunnelID int64, remote
 			"tunnel_id":    tunnelID,
 			"remote_addr":  remoteAddr,
 			"strategy":     strategy,
+			"speed_id":     nullInt64FromInterface(speedID),
 			"updated_time": now,
 		}).Error
 }
@@ -705,6 +715,7 @@ func (r *Repository) DeleteForwardCascade(forwardID int64) error {
 func (r *Repository) ReplaceForwardPorts(forwardID int64, entries []struct {
 	NodeID int64
 	Port   int
+	InIP   string
 }) error {
 	if r == nil || r.db == nil {
 		return errors.New("repository not initialized")
@@ -718,13 +729,30 @@ func (r *Repository) ReplaceForwardPorts(forwardID int64, entries []struct {
 		}
 		rows := make([]model.ForwardPort, 0, len(entries))
 		for _, e := range entries {
-			rows = append(rows, model.ForwardPort{ForwardID: forwardID, NodeID: e.NodeID, Port: e.Port})
+			rows = append(rows, model.ForwardPort{
+				ForwardID: forwardID,
+				NodeID:    e.NodeID,
+				Port:      e.Port,
+				InIP:      sql.NullString{String: e.InIP, Valid: e.InIP != ""},
+			})
 		}
 		return tx.Create(&rows).Error
 	})
 }

-func (r *Repository) RollbackForwardFields(id, userID int64, userName, name string, tunnelID int64, remoteAddr, strategy string, status int, now int64) {
+func (r *Repository) UpdateForwardPortBindIP(forwardID, nodeID int64, port int, inIP string) error {
+	if r == nil || r.db == nil {
+		return errors.New("repository not initialized")
+	}
+	if forwardID <= 0 || nodeID <= 0 || port <= 0 {
+		return nil
+	}
+	return r.db.Model(&model.ForwardPort{}).
+		Where("forward_id = ? AND node_id = ? AND port = ?", forwardID, nodeID, port).
+		Update("in_ip", sql.NullString{String: inIP, Valid: strings.TrimSpace(inIP) != ""}).Error
+}
+
+func (r *Repository) RollbackForwardFields(id, userID int64, userName, name string, tunnelID int64, remoteAddr, strategy string, status int, speedID interface{}, now int64) {
 	if r == nil || r.db == nil {
 		return
 	}
@@ -738,6 +766,7 @@ func (r *Repository) RollbackForwardFields(id, userID int64, userName, name stri
 			"remote_addr":  remoteAddr,
 			"strategy":     strategy,
 			"status":       status,
+			"speed_id":     nullInt64FromInterface(speedID),
 			"updated_time": now,
 		}).Error
 }
@@ -764,15 +793,15 @@ func (r *Repository) GetUsedPortsOnNodeAsMap(nodeID int64) (map[int]bool, error)
 	return used, nil
 }

-func (r *Repository) CreateSpeedLimit(name string, speed int, tunnelID int64, tunnelName string, now int64, status int) (int64, error) {
+func (r *Repository) CreateSpeedLimit(name string, speed int, now int64, status int) (int64, error) {
 	if r == nil || r.db == nil {
 		return 0, errors.New("repository not initialized")
 	}
 	sl := model.SpeedLimit{
 		Name:        name,
 		Speed:       speed,
-		TunnelID:    tunnelID,
-		TunnelName:  tunnelName,
+		TunnelID:    sql.NullInt64{Int64: 0, Valid: false},
+		TunnelName:  sql.NullString{String: "", Valid: false},
 		CreatedTime: now,
 		UpdatedTime: sql.NullInt64{Int64: now, Valid: true},
 		Status:      status,
@@ -783,34 +812,24 @@ func (r *Repository) CreateSpeedLimit(name string, speed int, tunnelID int64, tu
 	return sl.ID, nil
 }

-func (r *Repository) UpdateSpeedLimit(id int64, name string, speed int, tunnelID int64, tunnelName string, status int, now int64) error {
+func (r *Repository) UpdateSpeedLimit(id int64, name string, speed int, status int, now int64) error {
 	if r == nil || r.db == nil {
 		return errors.New("repository not initialized")
 	}
+	updates := map[string]interface{}{
+		"name":        name,
+		"speed":       speed,
+		"status":      status,
+		"tunnel_id":   nil,
+		"tunnel_name": nil,
+		"updated_time": sql.NullInt64{
+			Int64: now,
+			Valid: true,
+		},
+	}
 	return r.db.Model(&model.SpeedLimit{}).
 		Where("id = ?", id).
-		Updates(map[string]interface{}{
-			"name":        name,
-			"speed":       speed,
-			"tunnel_id":   tunnelID,
-			"tunnel_name": tunnelName,
-			"status":      status,
-			"updated_time": sql.NullInt64{
-				Int64: now,
-				Valid: true,
-			},
-		}).Error
-}
-
-func (r *Repository) GetSpeedLimitTunnelID(speedLimitID int64) int64 {
-	if r == nil || r.db == nil {
-		return 0
-	}
-	var sl model.SpeedLimit
-	if err := r.db.Select("tunnel_id").Where("id = ?", speedLimitID).First(&sl).Error; err != nil {
-		return 0
-	}
-	return sl.TunnelID
+		Updates(updates).Error
 }

 func (r *Repository) DeleteSpeedLimit(id int64) error {
@@ -1190,7 +1209,7 @@ func (r *Repository) EnsureUserTunnelGrant(userID, tunnelID int64) (int64, bool,
 	return ut.ID, true, nil
 }

-func (r *Repository) CreateForwardTx(userID int64, userName, name string, tunnelID int64, remoteAddr, strategy string, now int64, inx int, entryNodeIDs []int64, port int) (int64, error) {
+func (r *Repository) CreateForwardTx(userID int64, userName, name string, tunnelID int64, remoteAddr, strategy string, now int64, inx int, entryNodeIDs []int64, port int, inIp string, speedID interface{}) (int64, error) {
 	if r == nil || r.db == nil {
 		return 0, errors.New("repository not initialized")
 	}
@@ -1209,6 +1228,7 @@ func (r *Repository) CreateForwardTx(userID int64, userName, name string, tunnel
 			UpdatedTime: now,
 			Status:      1,
 			Inx:         inx,
+			SpeedID:     nullInt64FromInterface(speedID),
 		}
 		if err := tx.Create(&fwd).Error; err != nil {
 			return err
@@ -1219,6 +1239,7 @@ func (r *Repository) CreateForwardTx(userID int64, userName, name string, tunnel
 				ForwardID: forwardID,
 				NodeID:    nodeID,
 				Port:      port,
+				InIP:      sql.NullString{String: inIp, Valid: inIp != ""},
 			}
 			if err := tx.Create(&fp).Error; err != nil {
 				return err
@@ -1476,3 +1497,59 @@ func (r *Repository) ReplaceUserGroupsByUserID(userID int64, newGroupIDs []int64
 	}
 	return affectedGroupIDs, nil
 }
+
+func (r *Repository) AdvanceNodeRenewalCycles(now int64) (int, error) {
+	if r == nil || r.db == nil {
+		return 0, nil
+	}
+
+	var nodes []model.Node
+	if err := r.db.Where("renewal_cycle IS NOT NULL AND renewal_cycle != '' AND expiry_time IS NOT NULL").Find(&nodes).Error; err != nil {
+		return 0, fmt.Errorf("list nodes with renewal cycle: %w", err)
+	}
+
+	advanced := 0
+	for _, node := range nodes {
+		if !node.ExpiryTime.Valid || node.ExpiryTime.Int64 <= 0 {
+			continue
+		}
+
+		cycleMonths := 0
+		switch node.RenewalCycle.String {
+		case "month":
+			cycleMonths = 1
+		case "quarter":
+			cycleMonths = 3
+		case "year":
+			cycleMonths = 12
+		default:
+			continue
+		}
+
+		anchorTime := node.ExpiryTime.Int64
+		for anchorTime <= now {
+			nextAnchor := advanceByMonths(anchorTime, cycleMonths)
+			if nextAnchor <= anchorTime {
+				break
+			}
+			anchorTime = nextAnchor
+		}
+
+		if anchorTime == node.ExpiryTime.Int64 {
+			continue
+		}
+
+		if err := r.db.Model(&model.Node{}).Where("id = ?", node.ID).Update("expiry_time", anchorTime).Error; err != nil {
+			continue
+		}
+		advanced++
+	}
+
+	return advanced, nil
+}
+
+func advanceByMonths(timestamp int64, months int) int64 {
+	t := time.Unix(timestamp/1000, 0)
+	next := t.AddDate(0, months, 0)
+	return next.UnixMilli()
+}
@@ -0,0 +1,378 @@
+package repo
+
+import (
+	"errors"
+	"fmt"
+	"strconv"
+	"strings"
+	"time"
+
+	"go-backend/internal/store/model"
+
+	"gorm.io/gorm"
+	"gorm.io/gorm/clause"
+)
+
+const userQuotaBytesPerGB int64 = 1024 * 1024 * 1024
+
+type UserQuotaRelease struct {
+	UserID      int64
+	ForwardIDs  []int64
+	UnblockUser bool
+}
+
+func userQuotaWindowKeys(now time.Time) (int64, int64) {
+	return int64(now.Year()*10000 + int(now.Month())*100 + now.Day()), int64(now.Year()*100 + int(now.Month()))
+}
+
+func cloneUserQuotaView(q model.UserQuota) *model.UserQuotaView {
+	return &model.UserQuotaView{
+		UserID:           q.UserID,
+		DailyLimitGB:     q.DailyLimitGB,
+		MonthlyLimitGB:   q.MonthlyLimitGB,
+		DailyUsedBytes:   q.DailyUsedBytes,
+		MonthlyUsedBytes: q.MonthlyUsedBytes,
+		DayKey:           q.DayKey,
+		MonthKey:         q.MonthKey,
+		DisabledByQuota:  q.DisabledByQuota,
+		DisabledAt:       q.DisabledAt,
+		PausedForwardIDs: q.PausedForwardIDs,
+	}
+}
+
+func normalizeUserQuotaView(view *model.UserQuotaView, now time.Time) *model.UserQuotaView {
+	if view == nil {
+		return nil
+	}
+	dayKey, monthKey := userQuotaWindowKeys(now)
+	out := *view
+	if out.DayKey != dayKey {
+		out.DayKey = dayKey
+		out.DailyUsedBytes = 0
+	}
+	if out.MonthKey != monthKey {
+		out.MonthKey = monthKey
+		out.MonthlyUsedBytes = 0
+	}
+	return &out
+}
+
+func userQuotaExceeded(view *model.UserQuotaView) bool {
+	if view == nil {
+		return false
+	}
+	if view.DailyLimitGB > 0 && view.DailyUsedBytes >= view.DailyLimitGB*userQuotaBytesPerGB {
+		return true
+	}
+	if view.MonthlyLimitGB > 0 && view.MonthlyUsedBytes >= view.MonthlyLimitGB*userQuotaBytesPerGB {
+		return true
+	}
+	return false
+}
+
+func parsePausedForwardIDs(raw string) []int64 {
+	parts := strings.Split(strings.TrimSpace(raw), ",")
+	out := make([]int64, 0, len(parts))
+	seen := make(map[int64]struct{}, len(parts))
+	for _, part := range parts {
+		id, err := strconv.ParseInt(strings.TrimSpace(part), 10, 64)
+		if err != nil || id <= 0 {
+			continue
+		}
+		if _, ok := seen[id]; ok {
+			continue
+		}
+		seen[id] = struct{}{}
+		out = append(out, id)
+	}
+	return out
+}
+
+func joinPausedForwardIDs(ids []int64) string {
+	if len(ids) == 0 {
+		return ""
+	}
+	parts := make([]string, 0, len(ids))
+	seen := make(map[int64]struct{}, len(ids))
+	for _, id := range ids {
+		if id <= 0 {
+			continue
+		}
+		if _, ok := seen[id]; ok {
+			continue
+		}
+		seen[id] = struct{}{}
+		parts = append(parts, strconv.FormatInt(id, 10))
+	}
+	return strings.Join(parts, ",")
+}
+
+func (r *Repository) loadOrCreateUserQuotaTx(tx *gorm.DB, userID int64, now time.Time) (*model.UserQuota, error) {
+	if tx == nil {
+		return nil, errors.New("database unavailable")
+	}
+	dayKey, monthKey := userQuotaWindowKeys(now)
+	q := &model.UserQuota{}
+	err := tx.Clauses(clause.Locking{Strength: "UPDATE"}).Where("user_id = ?", userID).First(q).Error
+	if err == nil {
+		return q, nil
+	}
+	if !errors.Is(err, gorm.ErrRecordNotFound) {
+		return nil, err
+	}
+	nowMs := now.UnixMilli()
+	q = &model.UserQuota{
+		UserID:           userID,
+		DayKey:           dayKey,
+		MonthKey:         monthKey,
+		CreatedTime:      nowMs,
+		UpdatedTime:      nowMs,
+		PausedForwardIDs: "",
+	}
+	if err := tx.Create(q).Error; err != nil {
+		return nil, err
+	}
+	return q, nil
+}
+
+func applyUserQuotaWindowRoll(q *model.UserQuota, now time.Time) bool {
+	if q == nil {
+		return false
+	}
+	changed := false
+	dayKey, monthKey := userQuotaWindowKeys(now)
+	if q.DayKey != dayKey {
+		q.DayKey = dayKey
+		q.DailyUsedBytes = 0
+		changed = true
+	}
+	if q.MonthKey != monthKey {
+		q.MonthKey = monthKey
+		q.MonthlyUsedBytes = 0
+		changed = true
+	}
+	return changed
+}
+
+func (r *Repository) SaveUserQuotaConfigTx(tx *gorm.DB, userID, dailyLimitGB, monthlyLimitGB int64, now int64) error {
+	if tx == nil {
+		return errors.New("database unavailable")
+	}
+	if userID <= 0 {
+		return errors.New("user id is required")
+	}
+	if dailyLimitGB < 0 || monthlyLimitGB < 0 {
+		return errors.New("quota limit cannot be negative")
+	}
+	current := time.UnixMilli(now)
+	q, err := r.loadOrCreateUserQuotaTx(tx, userID, current)
+	if err != nil {
+		return err
+	}
+	updates := map[string]interface{}{
+		"daily_limit_gb":   dailyLimitGB,
+		"monthly_limit_gb": monthlyLimitGB,
+		"updated_time":     now,
+	}
+	if q.DayKey == 0 || q.MonthKey == 0 {
+		dayKey, monthKey := userQuotaWindowKeys(current)
+		updates["day_key"] = dayKey
+		updates["month_key"] = monthKey
+	}
+	return tx.Model(&model.UserQuota{}).Where("user_id = ?", userID).Updates(updates).Error
+}
+
+func (r *Repository) ListUserQuotaViewsByUserIDs(userIDs []int64, now time.Time) (map[int64]*model.UserQuotaView, error) {
+	if r == nil || r.db == nil {
+		return nil, errors.New("repository not initialized")
+	}
+	out := make(map[int64]*model.UserQuotaView)
+	if len(userIDs) == 0 {
+		return out, nil
+	}
+	var rows []model.UserQuota
+	if err := r.db.Where("user_id IN ?", userIDs).Find(&rows).Error; err != nil {
+		return nil, err
+	}
+	for _, row := range rows {
+		out[row.UserID] = normalizeUserQuotaView(cloneUserQuotaView(row), now)
+	}
+	return out, nil
+}
+
+func (r *Repository) GetUserQuotaView(userID int64, now time.Time) (*model.UserQuotaView, error) {
+	if r == nil || r.db == nil {
+		return nil, errors.New("repository not initialized")
+	}
+	if userID <= 0 {
+		return nil, nil
+	}
+	var row model.UserQuota
+	err := r.db.Where("user_id = ?", userID).First(&row).Error
+	if errors.Is(err, gorm.ErrRecordNotFound) {
+		return nil, nil
+	}
+	if err != nil {
+		return nil, err
+	}
+	return normalizeUserQuotaView(cloneUserQuotaView(row), now), nil
+}
+
+func (r *Repository) AddUserQuotaUsage(userID int64, usedBytes int64, now time.Time) (*model.UserQuotaView, error) {
+	if r == nil || r.db == nil {
+		return nil, errors.New("repository not initialized")
+	}
+	if userID <= 0 {
+		return nil, nil
+	}
+	result := &model.UserQuotaView{}
+	err := r.db.Transaction(func(tx *gorm.DB) error {
+		q, err := r.loadOrCreateUserQuotaTx(tx, userID, now)
+		if err != nil {
+			return err
+		}
+		applyUserQuotaWindowRoll(q, now)
+		if usedBytes > 0 {
+			q.DailyUsedBytes += usedBytes
+			q.MonthlyUsedBytes += usedBytes
+		}
+		q.UpdatedTime = now.UnixMilli()
+		if err := tx.Model(&model.UserQuota{}).Where("user_id = ?", userID).Updates(map[string]interface{}{
+			"daily_used_bytes":   q.DailyUsedBytes,
+			"monthly_used_bytes": q.MonthlyUsedBytes,
+			"day_key":            q.DayKey,
+			"month_key":          q.MonthKey,
+			"updated_time":       q.UpdatedTime,
+		}).Error; err != nil {
+			return err
+		}
+		*result = *cloneUserQuotaView(*q)
+		return nil
+	})
+	if err != nil {
+		return nil, err
+	}
+	return normalizeUserQuotaView(result, now), nil
+}
+
+func (r *Repository) MarkUserQuotaDisabled(userID int64, pausedForwardIDs []int64, now int64) error {
+	if r == nil || r.db == nil {
+		return errors.New("repository not initialized")
+	}
+	if userID <= 0 {
+		return errors.New("user id is required")
+	}
+	return r.db.Model(&model.UserQuota{}).Where("user_id = ?", userID).Updates(map[string]interface{}{
+		"disabled_by_quota":  1,
+		"disabled_at":        now,
+		"paused_forward_ids": joinPausedForwardIDs(pausedForwardIDs),
+		"updated_time":       now,
+	}).Error
+}
+
+func (r *Repository) ResetUserQuotaUsage(userID int64, scope string, now time.Time) (*UserQuotaRelease, error) {
+	if r == nil || r.db == nil {
+		return nil, errors.New("repository not initialized")
+	}
+	if userID <= 0 {
+		return nil, errors.New("user id is required")
+	}
+	scope = strings.TrimSpace(strings.ToLower(scope))
+	if scope == "" {
+		scope = "all"
+	}
+	if scope != "daily" && scope != "monthly" && scope != "all" {
+		return nil, fmt.Errorf("unsupported quota reset scope: %s", scope)
+	}
+	var release *UserQuotaRelease
+	err := r.db.Transaction(func(tx *gorm.DB) error {
+		q, err := r.loadOrCreateUserQuotaTx(tx, userID, now)
+		if err != nil {
+			return err
+		}
+		applyUserQuotaWindowRoll(q, now)
+		switch scope {
+		case "daily":
+			q.DailyUsedBytes = 0
+		case "monthly":
+			q.MonthlyUsedBytes = 0
+		case "all":
+			q.DailyUsedBytes = 0
+			q.MonthlyUsedBytes = 0
+		}
+		q.UpdatedTime = now.UnixMilli()
+		release = &UserQuotaRelease{UserID: userID}
+		if q.DisabledByQuota == 1 && !userQuotaExceeded(cloneUserQuotaView(*q)) {
+			release.UnblockUser = true
+			release.ForwardIDs = parsePausedForwardIDs(q.PausedForwardIDs)
+			q.DisabledByQuota = 0
+			q.DisabledAt = 0
+			q.PausedForwardIDs = ""
+		}
+		return tx.Model(&model.UserQuota{}).Where("user_id = ?", userID).Updates(map[string]interface{}{
+			"daily_used_bytes":   q.DailyUsedBytes,
+			"monthly_used_bytes": q.MonthlyUsedBytes,
+			"day_key":            q.DayKey,
+			"month_key":          q.MonthKey,
+			"disabled_by_quota":  q.DisabledByQuota,
+			"disabled_at":        q.DisabledAt,
+			"paused_forward_ids": q.PausedForwardIDs,
+			"updated_time":       q.UpdatedTime,
+		}).Error
+	})
+	if err != nil {
+		return nil, err
+	}
+	return release, nil
+}
+
+func (r *Repository) RollUserQuotaWindows(now time.Time) ([]UserQuotaRelease, error) {
+	if r == nil || r.db == nil {
+		return nil, errors.New("repository not initialized")
+	}
+	var releases []UserQuotaRelease
+	err := r.db.Transaction(func(tx *gorm.DB) error {
+		var rows []model.UserQuota
+		if err := tx.Find(&rows).Error; err != nil {
+			return err
+		}
+		nowMs := now.UnixMilli()
+		for _, row := range rows {
+			q := row
+			changed := applyUserQuotaWindowRoll(&q, now)
+			release := UserQuotaRelease{UserID: q.UserID}
+			if q.DisabledByQuota == 1 && !userQuotaExceeded(cloneUserQuotaView(q)) {
+				release.UnblockUser = true
+				release.ForwardIDs = parsePausedForwardIDs(q.PausedForwardIDs)
+				q.DisabledByQuota = 0
+				q.DisabledAt = 0
+				q.PausedForwardIDs = ""
+				changed = true
+			}
+			if !changed {
+				continue
+			}
+			q.UpdatedTime = nowMs
+			if err := tx.Model(&model.UserQuota{}).Where("user_id = ?", q.UserID).Updates(map[string]interface{}{
+				"daily_used_bytes":   q.DailyUsedBytes,
+				"monthly_used_bytes": q.MonthlyUsedBytes,
+				"day_key":            q.DayKey,
+				"month_key":          q.MonthKey,
+				"disabled_by_quota":  q.DisabledByQuota,
+				"disabled_at":        q.DisabledAt,
+				"paused_forward_ids": q.PausedForwardIDs,
+				"updated_time":       q.UpdatedTime,
+			}).Error; err != nil {
+				return err
+			}
+			if release.UnblockUser {
+				releases = append(releases, release)
+			}
+		}
+		return nil
+	})
+	if err != nil {
+		return nil, err
+	}
+	return releases, nil
+}
@@ -0,0 +1,202 @@
+package contract_test
+
+import (
+	"bytes"
+	"encoding/json"
+	"net/http"
+	"net/http/httptest"
+	"strings"
+	"testing"
+	"time"
+
+	"go-backend/internal/auth"
+	"go-backend/internal/http/response"
+	"go-backend/internal/store/repo"
+)
+
+func TestForwardBatchDeleteReturnsFailureReasonsContract(t *testing.T) {
+	secret := "contract-jwt-secret"
+	router, _ := setupContractRouter(t, secret)
+	adminToken := mustAdminToken(t, secret)
+
+	out := postBatchRequest(t, router, adminToken, "/api/v1/forward/batch-delete", `{"ids":[999]}`)
+	result := mustBatchResult(t, out)
+	assertBatchFailureReasonContains(t, result, "转发不存在")
+}
+
+func TestForwardBatchPauseReturnsFailureReasonsContract(t *testing.T) {
+	secret := "contract-jwt-secret"
+	router, _ := setupContractRouter(t, secret)
+	adminToken := mustAdminToken(t, secret)
+
+	out := postBatchRequest(t, router, adminToken, "/api/v1/forward/batch-pause", `{"ids":[999]}`)
+	result := mustBatchResult(t, out)
+	assertBatchFailureReasonContains(t, result, "转发不存在")
+}
+
+func TestForwardBatchResumeReturnsFailureReasonsContract(t *testing.T) {
+	secret := "contract-jwt-secret"
+	router, repo := setupContractRouter(t, secret)
+	adminToken := mustAdminToken(t, secret)
+	now := time.Now().UnixMilli()
+
+	forwardID := seedForwardForBatchAction(t, repo, batchForwardSeedOptions{
+		Now:              now,
+		TunnelName:       "resume-detail-tunnel",
+		ForwardName:      "resume-detail-forward",
+		CreateUserTunnel: true,
+		UserTunnelStatus: 0,
+	})
+
+	out := postBatchRequest(t, router, adminToken, "/api/v1/forward/batch-resume", `{"ids":[`+jsonNumber(forwardID)+`]}`)
+	result := mustBatchResult(t, out)
+	assertBatchFailureNameAndReason(t, result, "resume-detail-forward", "该隧道已禁用")
+}
+
+func TestForwardBatchChangeTunnelReturnsFailureReasonsContract(t *testing.T) {
+	secret := "contract-jwt-secret"
+	router, repo := setupContractRouter(t, secret)
+	adminToken := mustAdminToken(t, secret)
+	now := time.Now().UnixMilli()
+
+	forwardID := seedForwardForBatchAction(t, repo, batchForwardSeedOptions{
+		Now:         now,
+		TunnelName:  "change-detail-tunnel",
+		ForwardName: "change-detail-forward",
+	})
+	tunnelID := mustQueryInt64(t, repo, `SELECT tunnel_id FROM forward WHERE id = ?`, forwardID)
+
+	payload := `{"forwardIds":[` + jsonNumber(forwardID) + `],"targetTunnelId":` + jsonNumber(tunnelID) + `}`
+	out := postBatchRequest(t, router, adminToken, "/api/v1/forward/batch-change-tunnel", payload)
+	result := mustBatchResult(t, out)
+	assertBatchFailureNameAndReason(t, result, "change-detail-forward", "规则已在目标隧道中")
+}
+
+func TestTunnelBatchDeleteReturnsFailureReasonsContract(t *testing.T) {
+	secret := "contract-jwt-secret"
+	router, _ := setupContractRouter(t, secret)
+	adminToken := mustAdminToken(t, secret)
+
+	out := postBatchRequest(t, router, adminToken, "/api/v1/tunnel/batch-delete", `{"ids":[999]}`)
+	result := mustBatchResult(t, out)
+	assertBatchFailureReasonContains(t, result, "隧道不存在")
+}
+
+type batchForwardSeedOptions struct {
+	Now              int64
+	TunnelName       string
+	ForwardName      string
+	CreateUserTunnel bool
+	UserTunnelStatus int
+}
+
+func mustAdminToken(t *testing.T, secret string) string {
+	t.Helper()
+	token, err := auth.GenerateToken(1, "admin_user", 0, secret)
+	if err != nil {
+		t.Fatalf("generate admin token: %v", err)
+	}
+	return token
+}
+
+func postBatchRequest(t *testing.T, router http.Handler, token, path, payload string) response.R {
+	t.Helper()
+	req := httptest.NewRequest(http.MethodPost, path, bytes.NewBufferString(payload))
+	req.Header.Set("Authorization", token)
+	req.Header.Set("Content-Type", "application/json")
+	res := httptest.NewRecorder()
+	router.ServeHTTP(res, req)
+
+	var out response.R
+	if err := json.NewDecoder(res.Body).Decode(&out); err != nil {
+		t.Fatalf("decode response: %v", err)
+	}
+	if out.Code != 0 {
+		t.Fatalf("expected API success envelope, got code=%d msg=%q", out.Code, out.Msg)
+	}
+	return out
+}
+
+func mustBatchResult(t *testing.T, out response.R) map[string]interface{} {
+	t.Helper()
+	result, ok := out.Data.(map[string]interface{})
+	if !ok {
+		t.Fatalf("expected map result, got %T", out.Data)
+	}
+	if int(result["failCount"].(float64)) != 1 {
+		t.Fatalf("expected failCount=1, got %v", result["failCount"])
+	}
+	return result
+}
+
+func assertBatchFailureReasonContains(t *testing.T, result map[string]interface{}, snippet string) {
+	t.Helper()
+	failures, ok := result["failures"].([]interface{})
+	if !ok || len(failures) != 1 {
+		t.Fatalf("expected exactly one failure detail, got %#v", result["failures"])
+	}
+	first, ok := failures[0].(map[string]interface{})
+	if !ok {
+		t.Fatalf("expected failure detail object, got %T", failures[0])
+	}
+	reason, _ := first["reason"].(string)
+	if !strings.Contains(reason, snippet) {
+		t.Fatalf("expected failure reason to contain %q, got %q", snippet, reason)
+	}
+}
+
+func assertBatchFailureNameAndReason(t *testing.T, result map[string]interface{}, expectedName, reasonSnippet string) {
+	t.Helper()
+	failures, ok := result["failures"].([]interface{})
+	if !ok || len(failures) != 1 {
+		t.Fatalf("expected exactly one failure detail, got %#v", result["failures"])
+	}
+	first, ok := failures[0].(map[string]interface{})
+	if !ok {
+		t.Fatalf("expected failure detail object, got %T", failures[0])
+	}
+	gotName, _ := first["name"].(string)
+	if strings.TrimSpace(gotName) != expectedName {
+		t.Fatalf("expected failure name %q, got %q", expectedName, gotName)
+	}
+	reason, _ := first["reason"].(string)
+	if !strings.Contains(reason, reasonSnippet) {
+		t.Fatalf("expected failure reason to contain %q, got %q", reasonSnippet, reason)
+	}
+}
+
+func seedForwardForBatchAction(t *testing.T, repo *repo.Repository, opts batchForwardSeedOptions) int64 {
+	t.Helper()
+	if err := repo.DB().Exec(`
+		INSERT INTO user(id, user, pwd, role_id, exp_time, flow, in_flow, out_flow, flow_reset_time, num, created_time, updated_time, status)
+		VALUES(2, 'batch_action_user', '3c85cdebade1c51cf64ca9f3c09d182d', 1, 2727251700000, 99999, 0, 0, 1, 99999, ?, ?, 1)
+	`, opts.Now, opts.Now).Error; err != nil {
+		t.Fatalf("insert user: %v", err)
+	}
+
+	if err := repo.DB().Exec(`
+		INSERT INTO tunnel(name, traffic_ratio, type, protocol, flow, created_time, updated_time, status, in_ip, inx)
+		VALUES(?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+	`, opts.TunnelName, 1.0, 1, "tls", 99999, opts.Now, opts.Now, 1, nil, 0).Error; err != nil {
+		t.Fatalf("insert tunnel: %v", err)
+	}
+	tunnelID := mustLastInsertID(t, repo, opts.TunnelName)
+
+	if opts.CreateUserTunnel {
+		if err := repo.DB().Exec(`
+			INSERT INTO user_tunnel(id, user_id, tunnel_id, speed_id, num, flow, in_flow, out_flow, flow_reset_time, exp_time, status)
+			VALUES(20, 2, ?, NULL, 999, 99999, 0, 0, 1, 2727251700000, ?)
+		`, tunnelID, opts.UserTunnelStatus).Error; err != nil {
+			t.Fatalf("insert user_tunnel: %v", err)
+		}
+	}
+
+	if err := repo.DB().Exec(`
+		INSERT INTO forward(user_id, user_name, name, tunnel_id, remote_addr, strategy, in_flow, out_flow, created_time, updated_time, status, inx)
+		VALUES(2, 'batch_action_user', ?, ?, '1.1.1.1:443', 'fifo', 0, 0, ?, ?, 1, 0)
+	`, opts.ForwardName, tunnelID, opts.Now, opts.Now).Error; err != nil {
+		t.Fatalf("insert forward: %v", err)
+	}
+
+	return mustLastInsertID(t, repo, opts.ForwardName)
+}
@@ -0,0 +1,161 @@
+package contract_test
+
+import (
+	"bytes"
+	"encoding/json"
+	"net/http"
+	"net/http/httptest"
+	"strings"
+	"testing"
+	"time"
+
+	"go-backend/internal/auth"
+	"go-backend/internal/http/response"
+)
+
+func TestForwardBatchRedeployReturnsFailureReasonsContract(t *testing.T) {
+	secret := "contract-jwt-secret"
+	router, repo := setupContractRouter(t, secret)
+	now := time.Now().UnixMilli()
+
+	adminToken, err := auth.GenerateToken(1, "admin_user", 0, secret)
+	if err != nil {
+		t.Fatalf("generate admin token: %v", err)
+	}
+
+	if err := repo.DB().Exec(`
+		INSERT INTO user(id, user, pwd, role_id, exp_time, flow, in_flow, out_flow, flow_reset_time, num, created_time, updated_time, status)
+		VALUES(2, 'batch_redeploy_user', '3c85cdebade1c51cf64ca9f3c09d182d', 1, 2727251700000, 99999, 0, 0, 1, 99999, ?, ?, 1)
+	`, now, now).Error; err != nil {
+		t.Fatalf("insert user: %v", err)
+	}
+
+	if err := repo.DB().Exec(`
+		INSERT INTO tunnel(name, traffic_ratio, type, protocol, flow, created_time, updated_time, status, in_ip, inx)
+		VALUES(?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+	`, "batch-redeploy-tunnel", 1.0, 1, "tls", 99999, now, now, 1, nil, 0).Error; err != nil {
+		t.Fatalf("insert tunnel: %v", err)
+	}
+	tunnelID := mustLastInsertID(t, repo, "batch-redeploy-tunnel")
+
+	if err := repo.DB().Exec(`
+		INSERT INTO forward(user_id, user_name, name, tunnel_id, remote_addr, strategy, in_flow, out_flow, created_time, updated_time, status, inx)
+		VALUES(?, ?, ?, ?, ?, ?, 0, 0, ?, ?, 1, 0)
+	`, 2, "batch_redeploy_user", "redeploy-forward", tunnelID, "1.1.1.1:443", "fifo", now, now).Error; err != nil {
+		t.Fatalf("insert forward: %v", err)
+	}
+	forwardID := mustLastInsertID(t, repo, "redeploy-forward")
+
+	req := httptest.NewRequest(http.MethodPost, "/api/v1/forward/batch-redeploy", bytes.NewBufferString(`{"ids":[`+jsonNumber(forwardID)+`]}`))
+	req.Header.Set("Authorization", adminToken)
+	req.Header.Set("Content-Type", "application/json")
+	res := httptest.NewRecorder()
+	router.ServeHTTP(res, req)
+
+	var out response.R
+	if err := json.NewDecoder(res.Body).Decode(&out); err != nil {
+		t.Fatalf("decode response: %v", err)
+	}
+	if out.Code != 0 {
+		t.Fatalf("expected API success envelope, got code=%d msg=%q", out.Code, out.Msg)
+	}
+
+	result, ok := out.Data.(map[string]interface{})
+	if !ok {
+		t.Fatalf("expected map result, got %T", out.Data)
+	}
+	if int(result["failCount"].(float64)) != 1 {
+		t.Fatalf("expected failCount=1, got %v", result["failCount"])
+	}
+	if int(result["successCount"].(float64)) != 0 {
+		t.Fatalf("expected successCount=0, got %v", result["successCount"])
+	}
+
+	failures, ok := result["failures"].([]interface{})
+	if !ok || len(failures) != 1 {
+		t.Fatalf("expected exactly one failure detail, got %#v", result["failures"])
+	}
+	first, ok := failures[0].(map[string]interface{})
+	if !ok {
+		t.Fatalf("expected failure detail object, got %T", failures[0])
+	}
+	if gotName := strings.TrimSpace(first["name"].(string)); gotName != "redeploy-forward" {
+		t.Fatalf("expected failure name redeploy-forward, got %q", gotName)
+	}
+	reason, _ := first["reason"].(string)
+	if !strings.Contains(reason, "转发入口端口不存在") {
+		t.Fatalf("expected forward failure reason to mention missing entry port, got %q", reason)
+	}
+}
+
+func TestTunnelBatchRedeployReturnsFailureReasonsContract(t *testing.T) {
+	secret := "contract-jwt-secret"
+	router, repo := setupContractRouter(t, secret)
+	now := time.Now().UnixMilli()
+
+	adminToken, err := auth.GenerateToken(1, "admin_user", 0, secret)
+	if err != nil {
+		t.Fatalf("generate admin token: %v", err)
+	}
+
+	if err := repo.DB().Exec(`
+		INSERT INTO tunnel(name, traffic_ratio, type, protocol, flow, created_time, updated_time, status, in_ip, inx)
+		VALUES(?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+	`, "broken-redeploy-tunnel", 1.0, 2, "tls", 99999, now, now, 1, nil, 0).Error; err != nil {
+		t.Fatalf("insert tunnel: %v", err)
+	}
+	tunnelID := mustLastInsertID(t, repo, "broken-redeploy-tunnel")
+
+	if err := repo.DB().Exec(`
+		INSERT INTO node(name, secret, server_ip, server_ip_v4, server_ip_v6, port, interface_name, version, http, tls, socks, created_time, updated_time, status, tcp_listen_addr, udp_listen_addr, inx)
+		VALUES(?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+	`, "entry-only-node", "entry-only-secret", "10.0.0.20", "10.0.0.20", "", "20000-20010", "", "v1", 1, 1, 1, now, now, 1, "[::]", "[::]", 0).Error; err != nil {
+		t.Fatalf("insert node: %v", err)
+	}
+	entryNodeID := mustLastInsertID(t, repo, "entry-only-node")
+
+	if err := repo.DB().Exec(`
+		INSERT INTO chain_tunnel(tunnel_id, chain_type, node_id, port, strategy, inx, protocol)
+		VALUES(?, 1, ?, 20001, 'round', 1, 'tls')
+	`, tunnelID, entryNodeID).Error; err != nil {
+		t.Fatalf("insert chain_tunnel: %v", err)
+	}
+
+	req := httptest.NewRequest(http.MethodPost, "/api/v1/tunnel/batch-redeploy", bytes.NewBufferString(`{"ids":[`+jsonNumber(tunnelID)+`]}`))
+	req.Header.Set("Authorization", adminToken)
+	req.Header.Set("Content-Type", "application/json")
+	res := httptest.NewRecorder()
+	router.ServeHTTP(res, req)
+
+	var out response.R
+	if err := json.NewDecoder(res.Body).Decode(&out); err != nil {
+		t.Fatalf("decode response: %v", err)
+	}
+	if out.Code != 0 {
+		t.Fatalf("expected API success envelope, got code=%d msg=%q", out.Code, out.Msg)
+	}
+
+	result, ok := out.Data.(map[string]interface{})
+	if !ok {
+		t.Fatalf("expected map result, got %T", out.Data)
+	}
+	if int(result["failCount"].(float64)) != 1 {
+		t.Fatalf("expected failCount=1, got %v", result["failCount"])
+	}
+
+	failures, ok := result["failures"].([]interface{})
+	if !ok || len(failures) != 1 {
+		t.Fatalf("expected exactly one failure detail, got %#v", result["failures"])
+	}
+	first, ok := failures[0].(map[string]interface{})
+	if !ok {
+		t.Fatalf("expected failure detail object, got %T", failures[0])
+	}
+	if gotName := strings.TrimSpace(first["name"].(string)); gotName != "broken-redeploy-tunnel" {
+		t.Fatalf("expected failure name broken-redeploy-tunnel, got %q", gotName)
+	}
+	reason, _ := first["reason"].(string)
+	if !strings.Contains(reason, "转发链目标不能为空") {
+		t.Fatalf("expected tunnel failure reason to mention missing target, got %q", reason)
+	}
+}
@@ -1,19 +0,0 @@
-package contract
-
-import (
-	"testing"
-
-	"go-backend/internal/store/repo"
-)
-
-func mustLastInsertID(t *testing.T, r *repo.Repository, label string) int64 {
-	t.Helper()
-	var id int64
-	if err := r.DB().Raw("SELECT last_insert_rowid()").Row().Scan(&id); err != nil {
-		t.Fatalf("read last_insert_rowid for %s: %v", label, err)
-	}
-	if id <= 0 {
-		t.Fatalf("invalid last_insert_rowid for %s: %d", label, id)
-	}
-	return id
-}
@@ -2,6 +2,8 @@ package contract_test

 import (
 	"database/sql"
+	"strconv"
+	"strings"
 	"testing"

 	"go-backend/internal/store/repo"
@@ -117,3 +119,43 @@ func tryQueryInt(t *testing.T, r *repo.Repository, query string, args ...interfa
 	}
 	return v, nil
 }
+
+func valueAsInt(v interface{}) int {
+	switch n := v.(type) {
+	case float64:
+		return int(n)
+	case int:
+		return n
+	case int64:
+		return int(n)
+	default:
+		return 0
+	}
+}
+
+func valueAsString(v interface{}) string {
+	s, _ := v.(string)
+	return s
+}
+
+func valueAsBool(v interface{}) bool {
+	switch b := v.(type) {
+	case bool:
+		return b
+	case float64:
+		return b != 0
+	case int:
+		return b != 0
+	case int64:
+		return b != 0
+	case string:
+		s := strings.TrimSpace(strings.ToLower(b))
+		return s == "1" || s == "t" || s == "true" || s == "yes" || s == "y"
+	default:
+		return false
+	}
+}
+
+func jsonInt64(v int64) string {
+	return strconv.FormatInt(v, 10)
+}
@@ -1,11 +1,11 @@
-package contract
+package contract_test

 import (
+	"bufio"
 	"bytes"
 	"encoding/json"
 	"net/http"
 	"net/http/httptest"
-	"path/filepath"
 	"strconv"
 	"strings"
 	"sync/atomic"
@@ -13,15 +13,12 @@ import (
 	"time"

 	"go-backend/internal/auth"
-	httpserver "go-backend/internal/http"
-	"go-backend/internal/http/handler"
 	"go-backend/internal/http/response"
-	"go-backend/internal/store/repo"
 )

 func TestDiagnosisChainCoverageContracts(t *testing.T) {
 	secret := "contract-jwt-secret"
-	router, r := setupDiagnosisContractRouter(t, secret)
+	router, r := setupContractRouter(t, secret)
 	now := time.Now().UnixMilli()

 	if err := r.DB().Exec(`
@@ -195,7 +192,7 @@ func TestDiagnosisChainCoverageContracts(t *testing.T) {

 func TestForwardDiagnosisRespectsTunnelIPPreferenceContract(t *testing.T) {
 	secret := "contract-jwt-secret"
-	router, r := setupDiagnosisContractRouter(t, secret)
+	router, r := setupContractRouter(t, secret)
 	now := time.Now().UnixMilli()

 	if err := r.DB().Exec(`
@@ -315,7 +312,7 @@ func TestForwardDiagnosisRespectsTunnelIPPreferenceContract(t *testing.T) {

 func TestDiagnosisUsesFederationRuntimeForRemoteNodes(t *testing.T) {
 	secret := "contract-jwt-secret"
-	router, r := setupDiagnosisContractRouter(t, secret)
+	router, r := setupContractRouter(t, secret)
 	now := time.Now().UnixMilli()

 	remoteToken := "remote-diagnose-token"
@@ -466,53 +463,166 @@ func TestDiagnosisUsesFederationRuntimeForRemoteNodes(t *testing.T) {
 	}
 }

-func valueAsInt(v interface{}) int {
-	switch n := v.(type) {
-	case float64:
-		return int(n)
-	case int:
-		return n
-	case int64:
-		return int(n)
-	default:
-		return 0
+func TestTunnelDiagnosisUsesConfiguredConnectIPContract(t *testing.T) {
+	secret := "contract-jwt-secret"
+	router, r := setupContractRouter(t, secret)
+	now := time.Now().UnixMilli()
+
+	insertNode := func(name, ip string) int64 {
+		if err := r.DB().Exec(`
+			INSERT INTO node(name, secret, server_ip, server_ip_v4, server_ip_v6, port, interface_name, version, http, tls, socks, created_time, updated_time, status, tcp_listen_addr, udp_listen_addr, inx)
+			VALUES(?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+		`, name, name+"-secret", ip, ip, "", "30000-30010", "", "v1", 1, 1, 1, now, now, 1, "[::]", "[::]", 0).Error; err != nil {
+			t.Fatalf("insert node %s: %v", name, err)
+		}
+		return mustLastInsertID(t, r, name)
 	}
-}

-func valueAsString(v interface{}) string {
-	s, _ := v.(string)
-	return s
-}
+	entryNodeID := insertNode("entry-connectip", "10.80.0.10")
+	middleNodeID := insertNode("middle-connectip", "10.80.0.20")
+	exitNodeID := insertNode("exit-connectip", "10.80.0.30")

-func valueAsBool(v interface{}) bool {
-	switch b := v.(type) {
-	case bool:
-		return b
-	case float64:
-		return b != 0
-	case int:
-		return b != 0
-	case int64:
-		return b != 0
-	case string:
-		s := strings.TrimSpace(strings.ToLower(b))
-		return s == "1" || s == "t" || s == "true" || s == "yes" || s == "y"
-	default:
-		return false
+	if err := r.DB().Exec(`
+		INSERT INTO tunnel(name, traffic_ratio, type, protocol, flow, created_time, updated_time, status, in_ip, inx)
+		VALUES(?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+	`, "diagnose-connectip-tunnel", 1.0, 2, "tls", 99999, now, now, 1, nil, 0).Error; err != nil {
+		t.Fatalf("insert tunnel: %v", err)
 	}
-}
+	tunnelID := mustLastInsertID(t, r, "diagnose-connectip-tunnel")

-func setupDiagnosisContractRouter(t *testing.T, jwtSecret string) (http.Handler, *repo.Repository) {
-	t.Helper()
-	dbPath := filepath.Join(t.TempDir(), "diagnosis-contract.db")
-	r, err := repo.Open(dbPath)
+	if err := r.DB().Exec(`
+		INSERT INTO chain_tunnel(tunnel_id, chain_type, node_id, port, strategy, inx, protocol)
+		VALUES(?, 1, ?, 30001, 'round', 1, 'tls')
+	`, tunnelID, entryNodeID).Error; err != nil {
+		t.Fatalf("insert entry chain: %v", err)
+	}
+	if err := r.DB().Exec(`
+		INSERT INTO chain_tunnel(tunnel_id, chain_type, node_id, port, strategy, inx, protocol, connect_ip)
+		VALUES(?, 2, ?, 30002, 'round', 1, 'tls', ?)
+	`, tunnelID, middleNodeID, "10.99.0.22").Error; err != nil {
+		t.Fatalf("insert middle chain: %v", err)
+	}
+	if err := r.DB().Exec(`
+		INSERT INTO chain_tunnel(tunnel_id, chain_type, node_id, port, strategy, inx, protocol, connect_ip)
+		VALUES(?, 3, ?, 30003, 'round', 1, 'tls', ?)
+	`, tunnelID, exitNodeID, "10.99.0.33").Error; err != nil {
+		t.Fatalf("insert exit chain: %v", err)
+	}
+
+	adminToken, err := auth.GenerateToken(1, "admin_user", 0, secret)
 	if err != nil {
-		t.Fatalf("open sqlite: %v", err)
+		t.Fatalf("generate admin token: %v", err)
 	}
-	t.Cleanup(func() {
-		_ = r.Close()
+
+	t.Run("normal diagnose should use configured connectIp", func(t *testing.T) {
+		req := httptest.NewRequest(http.MethodPost, "/api/v1/tunnel/diagnose", bytes.NewBufferString(`{"tunnelId":`+strconv.FormatInt(tunnelID, 10)+`}`))
+		req.Header.Set("Authorization", adminToken)
+		res := httptest.NewRecorder()
+
+		router.ServeHTTP(res, req)
+
+		var out response.R
+		if err := json.NewDecoder(res.Body).Decode(&out); err != nil {
+			t.Fatalf("decode response: %v", err)
+		}
+		if out.Code != 0 {
+			t.Fatalf("expected code 0, got %d (%s)", out.Code, out.Msg)
+		}
+
+		payload, ok := out.Data.(map[string]interface{})
+		if !ok {
+			t.Fatalf("expected object payload, got %T", out.Data)
+		}
+		results, ok := payload["results"].([]interface{})
+		if !ok || len(results) == 0 {
+			t.Fatalf("expected non-empty results, got %v", payload["results"])
+		}
+
+		entryToMiddleOK := false
+		middleToExitOK := false
+		for _, raw := range results {
+			item, ok := raw.(map[string]interface{})
+			if !ok {
+				continue
+			}
+			from := valueAsInt(item["fromChainType"])
+			to := valueAsInt(item["toChainType"])
+			targetIP := strings.TrimSpace(valueAsString(item["targetIp"]))
+
+			if from == 1 && to == 2 && targetIP == "10.99.0.22" {
+				entryToMiddleOK = true
+			}
+			if from == 2 && to == 3 && targetIP == "10.99.0.33" {
+				middleToExitOK = true
+			}
+		}
+
+		if !entryToMiddleOK || !middleToExitOK {
+			t.Fatalf("expected connectIp targets 10.99.0.22/10.99.0.33, got entry=%v middle=%v", entryToMiddleOK, middleToExitOK)
+		}
 	})

-	h := handler.New(r, jwtSecret)
-	return httpserver.NewRouter(h, jwtSecret), r
+	t.Run("stream diagnose start items should use configured connectIp", func(t *testing.T) {
+		req := httptest.NewRequest(http.MethodPost, "/api/v1/tunnel/diagnose/stream", bytes.NewBufferString(`{"tunnelId":`+strconv.FormatInt(tunnelID, 10)+`}`))
+		req.Header.Set("Authorization", adminToken)
+		res := httptest.NewRecorder()
+
+		router.ServeHTTP(res, req)
+
+		if res.Code != http.StatusOK {
+			t.Fatalf("expected status 200, got %d", res.Code)
+		}
+
+		scanner := bufio.NewScanner(bytes.NewReader(res.Body.Bytes()))
+		startFound := false
+		entryToMiddleOK := false
+		middleToExitOK := false
+		for scanner.Scan() {
+			line := strings.TrimSpace(scanner.Text())
+			if line == "" {
+				continue
+			}
+			var event map[string]interface{}
+			if err := json.Unmarshal([]byte(line), &event); err != nil {
+				continue
+			}
+			if strings.TrimSpace(valueAsString(event["type"])) != "start" {
+				continue
+			}
+			startFound = true
+			data, ok := event["data"].(map[string]interface{})
+			if !ok {
+				break
+			}
+			items, ok := data["items"].([]interface{})
+			if !ok {
+				break
+			}
+			for _, raw := range items {
+				item, ok := raw.(map[string]interface{})
+				if !ok {
+					continue
+				}
+				from := valueAsInt(item["fromChainType"])
+				to := valueAsInt(item["toChainType"])
+				targetIP := strings.TrimSpace(valueAsString(item["targetIp"]))
+				if from == 1 && to == 2 && targetIP == "10.99.0.22" {
+					entryToMiddleOK = true
+				}
+				if from == 2 && to == 3 && targetIP == "10.99.0.33" {
+					middleToExitOK = true
+				}
+			}
+			break
+		}
+		if err := scanner.Err(); err != nil {
+			t.Fatalf("scan stream body: %v", err)
+		}
+		if !startFound {
+			t.Fatalf("expected start event in stream response")
+		}
+		if !entryToMiddleOK || !middleToExitOK {
+			t.Fatalf("expected start items with connectIp targets 10.99.0.22/10.99.0.33, got entry=%v middle=%v", entryToMiddleOK, middleToExitOK)
+		}
+	})
 }
@@ -166,7 +166,7 @@ func TestFederationDualPanelMiddleExitAutoPortContract(t *testing.T) {

 	assertCount(t, providerRepo, `SELECT COUNT(1) FROM peer_share_runtime WHERE share_id = ? AND status = 1 AND applied = 1`, middleShareID, 1)
 	assertCount(t, providerRepo, `SELECT COUNT(1) FROM peer_share_runtime WHERE share_id = ? AND status = 1 AND applied = 1`, exitShareID, 1)
-	assertCount(t, providerRepo, `SELECT COUNT(1) FROM peer_share_runtime WHERE share_id = ?`, entryShareID, 0)
+	assertCount(t, providerRepo, `SELECT COUNT(1) FROM peer_share_runtime WHERE share_id = ? AND status = 1 AND applied = 1`, entryShareID, 1)
 }

 func TestFederationDualPanelRemoteDiagnosisContract(t *testing.T) {
@@ -624,42 +624,6 @@ func waitNodeStatus(t *testing.T, r *repo.Repository, nodeID int64, expectedStat
 	}
 }

-func valueAsInt(v interface{}) int {
-	switch n := v.(type) {
-	case float64:
-		return int(n)
-	case int:
-		return n
-	case int64:
-		return int(n)
-	default:
-		return 0
-	}
-}
-
-func valueAsString(v interface{}) string {
-	s, _ := v.(string)
-	return s
-}
-
-func valueAsBool(v interface{}) bool {
-	switch b := v.(type) {
-	case bool:
-		return b
-	case float64:
-		return b != 0
-	case int:
-		return b != 0
-	case int64:
-		return b != 0
-	case string:
-		s := strings.TrimSpace(strings.ToLower(b))
-		return s == "1" || s == "t" || s == "true" || s == "yes" || s == "y"
-	default:
-		return false
-	}
-}
-
 func TestFederationRuntimeCommandPortRangeEnforcement(t *testing.T) {
 	providerSecret := "provider-portrange-jwt"
 	providerRouter, providerRepo := setupContractRouter(t, providerSecret)
@@ -759,6 +723,21 @@ func TestFederationRuntimeCommandPortRangeEnforcement(t *testing.T) {
 	}

 	// Test: Non-service commands should pass through without port validation
+	res = sendCommand("share-portrange-token", "UpdateLimiters", map[string]interface{}{
+		"limiter": "federation-limit-test",
+		"data": map[string]interface{}{
+			"name":   "federation-limit-test",
+			"limits": []string{"$ 1MB 1MB"},
+		},
+	})
+	out = response.R{}
+	if err := json.NewDecoder(res.Body).Decode(&out); err != nil {
+		t.Fatalf("decode response: %v", err)
+	}
+	if out.Code != 0 {
+		t.Fatalf("expected code 0 for UpdateLimiters command, got %d (msg: %s)", out.Code, out.Msg)
+	}
+
 	res = sendCommand("share-portrange-token", "reload", nil)
 	out = response.R{}
 	if err := json.NewDecoder(res.Body).Decode(&out); err != nil {
@@ -0,0 +1,693 @@
+package contract_test
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"net/http/httptest"
+	"strconv"
+	"strings"
+	"testing"
+	"time"
+
+	"go-backend/internal/auth"
+	"go-backend/internal/http/response"
+	"go-backend/internal/store/repo"
+)
+
+func TestFederationForwardCardFlowLinkageContract(t *testing.T) {
+	secret := "federation-forward-flow-contract-jwt"
+	router, r := setupContractRouter(t, secret)
+
+	adminToken, err := auth.GenerateToken(1, "admin_user", 0, secret)
+	if err != nil {
+		t.Fatalf("generate admin token: %v", err)
+	}
+
+	now := time.Now().UnixMilli()
+
+	if err := r.DB().Exec(`
+		INSERT INTO node(name, secret, server_ip, server_ip_v4, server_ip_v6, port, interface_name, version, http, tls, socks, created_time, updated_time, status, tcp_listen_addr, udp_listen_addr, inx, is_remote, remote_url, remote_token, remote_config)
+		VALUES(?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+	`, "flow-local-node", "flow-local-secret", "10.20.30.40", "10.20.30.40", "", "32000-32020", "", "v1", 1, 1, 1, now, now, 1, "[::]", "[::]", 0, 0, "", "", "").Error; err != nil {
+		t.Fatalf("insert local node: %v", err)
+	}
+	nodeID := mustLastInsertID(t, r, "flow-local-node")
+
+	shareToken := "flow-linkage-share-token"
+	if err := r.CreatePeerShare(&repo.PeerShare{
+		Name:           "flow-linkage-share",
+		NodeID:         nodeID,
+		Token:          shareToken,
+		MaxBandwidth:   0,
+		CurrentFlow:    1536,
+		ExpiryTime:     0,
+		PortRangeStart: 32000,
+		PortRangeEnd:   32020,
+		IsActive:       1,
+		CreatedTime:    now,
+		UpdatedTime:    now,
+	}); err != nil {
+		t.Fatalf("create share: %v", err)
+	}
+	share, err := r.GetPeerShareByToken(shareToken)
+	if err != nil || share == nil {
+		t.Fatalf("load share: %v", err)
+	}
+
+	tunnelName := fmt.Sprintf("Share-%d-Port-%d", share.ID, 32001)
+	if err := r.DB().Exec(`
+		INSERT INTO tunnel(name, type, protocol, flow, created_time, updated_time, status, in_ip, inx)
+		VALUES(?, ?, ?, ?, ?, ?, ?, ?, ?)
+	`, tunnelName, 1, "tcp", 1, now, now, 1, "", 0).Error; err != nil {
+		t.Fatalf("insert share tunnel: %v", err)
+	}
+	tunnelID := mustLastInsertID(t, r, "flow-share-tunnel")
+
+	if err := r.DB().Exec(`
+		INSERT INTO forward(user_id, user_name, name, tunnel_id, remote_addr, strategy, in_flow, out_flow, created_time, updated_time, status, inx)
+		VALUES(?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+	`, 1, "admin_user", "flow-linkage-forward", tunnelID, "1.1.1.1:443", "fifo", 0, 0, now, now, 1, 0).Error; err != nil {
+		t.Fatalf("insert forward: %v", err)
+	}
+	forwardID := mustLastInsertID(t, r, "flow-linkage-forward")
+
+	if err := r.DB().Exec(`INSERT INTO forward_port(forward_id, node_id, port) VALUES(?, ?, ?)`, forwardID, nodeID, 32001).Error; err != nil {
+		t.Fatalf("insert forward_port: %v", err)
+	}
+
+	forwardOut := requestContractEnvelope(t, router, adminToken, "/api/v1/forward/list", nil)
+	if forwardOut.Code != 0 {
+		t.Fatalf("forward list failed: code=%d msg=%q", forwardOut.Code, forwardOut.Msg)
+	}
+	forwardRows := mustContractSlice(t, forwardOut.Data, "forward list data")
+
+	var targetForward map[string]interface{}
+	for _, row := range forwardRows {
+		m, ok := row.(map[string]interface{})
+		if !ok {
+			continue
+		}
+		if contractValueAsInt64(m["id"]) == forwardID {
+			targetForward = m
+			break
+		}
+	}
+	if targetForward == nil {
+		t.Fatalf("target forward %d not found in /forward/list response", forwardID)
+	}
+
+	shareOut := requestContractEnvelope(t, router, adminToken, "/api/v1/federation/share/list", nil)
+	if shareOut.Code != 0 {
+		t.Fatalf("share list failed: code=%d msg=%q", shareOut.Code, shareOut.Msg)
+	}
+	localShareRows := mustContractSlice(t, shareOut.Data, "share list data")
+
+	remoteUsageOut := requestContractEnvelope(t, router, adminToken, "/api/v1/federation/share/remote-usage/list", nil)
+	if remoteUsageOut.Code != 0 {
+		t.Fatalf("remote usage list failed: code=%d msg=%q", remoteUsageOut.Code, remoteUsageOut.Msg)
+	}
+	remoteUsageRows := mustContractSlice(t, remoteUsageOut.Data, "remote usage data")
+	if len(remoteUsageRows) != 0 {
+		t.Fatalf("expected no remote usage rows in local-only fixture, got %d", len(remoteUsageRows))
+	}
+
+	flowByShare := make(map[int64]int64)
+	for _, row := range remoteUsageRows {
+		m, ok := row.(map[string]interface{})
+		if !ok {
+			continue
+		}
+		shareID := contractValueAsInt64(m["shareId"])
+		currentFlow := contractValueAsInt64(m["currentFlow"])
+		if shareID > 0 && currentFlow > 0 {
+			if currentFlow > flowByShare[shareID] {
+				flowByShare[shareID] = currentFlow
+			}
+		}
+	}
+	for _, row := range localShareRows {
+		m, ok := row.(map[string]interface{})
+		if !ok {
+			continue
+		}
+		shareID := contractValueAsInt64(m["id"])
+		currentFlow := contractValueAsInt64(m["currentFlow"])
+		if shareID > 0 && currentFlow > 0 {
+			if currentFlow > flowByShare[shareID] {
+				flowByShare[shareID] = currentFlow
+			}
+		}
+	}
+
+	parsedShareID := contractParseShareIDFromTunnelName(contractValueAsString(targetForward["tunnelName"]))
+	if parsedShareID != share.ID {
+		t.Fatalf("expected parsed shareID=%d, got %d (tunnelName=%q)", share.ID, parsedShareID, contractValueAsString(targetForward["tunnelName"]))
+	}
+
+	forwardCountByShare := make(map[int64]int)
+	for _, row := range forwardRows {
+		m, ok := row.(map[string]interface{})
+		if !ok {
+			continue
+		}
+		sid := contractParseShareIDFromTunnelName(contractValueAsString(m["tunnelName"]))
+		if sid > 0 && flowByShare[sid] > 0 {
+			forwardCountByShare[sid] = forwardCountByShare[sid] + 1
+		}
+	}
+
+	directFlow := contractValueAsInt64(targetForward["inFlow"]) + contractValueAsInt64(targetForward["outFlow"])
+	if directFlow != 0 {
+		t.Fatalf("fixture expectation failed: directFlow should be 0, got %d", directFlow)
+	}
+
+	shareFlow := flowByShare[parsedShareID]
+	if shareFlow <= 0 {
+		t.Fatalf("expected merged share flow > 0 for share %d", parsedShareID)
+	}
+
+	count := forwardCountByShare[parsedShareID]
+	if count <= 0 {
+		count = 1
+	}
+	estimated := shareFlow / int64(count)
+	if estimated < 1 {
+		estimated = 1
+	}
+	displayFlow := estimated
+
+	if displayFlow <= 0 {
+		t.Fatalf("expected displayFlow > 0 after frontend-style merge, got %d", displayFlow)
+	}
+	if displayFlow != share.CurrentFlow {
+		t.Fatalf("expected displayFlow=%d, got %d", share.CurrentFlow, displayFlow)
+	}
+}
+
+func TestFederationForwardCardFlowLinkageContractSplitShareFlowAcrossMultipleForwards(t *testing.T) {
+	secret := "federation-forward-split-flow-contract-jwt"
+	router, r := setupContractRouter(t, secret)
+
+	adminToken, err := auth.GenerateToken(1, "admin_user", 0, secret)
+	if err != nil {
+		t.Fatalf("generate admin token: %v", err)
+	}
+
+	now := time.Now().UnixMilli()
+
+	if err := r.DB().Exec(`
+		INSERT INTO node(name, secret, server_ip, server_ip_v4, server_ip_v6, port, interface_name, version, http, tls, socks, created_time, updated_time, status, tcp_listen_addr, udp_listen_addr, inx, is_remote, remote_url, remote_token, remote_config)
+		VALUES(?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+	`, "flow-split-local-node", "flow-split-local-secret", "10.21.31.41", "10.21.31.41", "", "32100-32120", "", "v1", 1, 1, 1, now, now, 1, "[::]", "[::]", 0, 0, "", "", "").Error; err != nil {
+		t.Fatalf("insert local node: %v", err)
+	}
+	nodeID := mustLastInsertID(t, r, "flow-split-local-node")
+
+	shareToken := "flow-split-share-token"
+	if err := r.CreatePeerShare(&repo.PeerShare{
+		Name:           "flow-split-share",
+		NodeID:         nodeID,
+		Token:          shareToken,
+		MaxBandwidth:   0,
+		CurrentFlow:    4097,
+		ExpiryTime:     0,
+		PortRangeStart: 32100,
+		PortRangeEnd:   32120,
+		IsActive:       1,
+		CreatedTime:    now,
+		UpdatedTime:    now,
+	}); err != nil {
+		t.Fatalf("create share: %v", err)
+	}
+	share, err := r.GetPeerShareByToken(shareToken)
+	if err != nil || share == nil {
+		t.Fatalf("load share: %v", err)
+	}
+
+	createShareForward := func(name string, port int) int64 {
+		t.Helper()
+
+		tunnelName := fmt.Sprintf("Share-%d-Port-%d", share.ID, port)
+		if err := r.DB().Exec(`
+			INSERT INTO tunnel(name, type, protocol, flow, created_time, updated_time, status, in_ip, inx)
+			VALUES(?, ?, ?, ?, ?, ?, ?, ?, ?)
+		`, tunnelName, 1, "tcp", 1, now, now, 1, "", 0).Error; err != nil {
+			t.Fatalf("insert share tunnel: %v", err)
+		}
+		tunnelID := mustLastInsertID(t, r, "flow-split-tunnel")
+
+		if err := r.DB().Exec(`
+			INSERT INTO forward(user_id, user_name, name, tunnel_id, remote_addr, strategy, in_flow, out_flow, created_time, updated_time, status, inx)
+			VALUES(?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+		`, 1, "admin_user", name, tunnelID, "1.1.1.1:443", "fifo", 0, 0, now, now, 1, 0).Error; err != nil {
+			t.Fatalf("insert forward: %v", err)
+		}
+		forwardID := mustLastInsertID(t, r, name)
+
+		if err := r.DB().Exec(`INSERT INTO forward_port(forward_id, node_id, port) VALUES(?, ?, ?)`, forwardID, nodeID, port).Error; err != nil {
+			t.Fatalf("insert forward_port: %v", err)
+		}
+
+		return forwardID
+	}
+
+	forwardIDA := createShareForward("flow-split-forward-a", 32101)
+	forwardIDB := createShareForward("flow-split-forward-b", 32102)
+
+	forwardOut := requestContractEnvelope(t, router, adminToken, "/api/v1/forward/list", nil)
+	if forwardOut.Code != 0 {
+		t.Fatalf("forward list failed: code=%d msg=%q", forwardOut.Code, forwardOut.Msg)
+	}
+	forwardRows := mustContractSlice(t, forwardOut.Data, "forward list data")
+
+	shareOut := requestContractEnvelope(t, router, adminToken, "/api/v1/federation/share/list", nil)
+	if shareOut.Code != 0 {
+		t.Fatalf("share list failed: code=%d msg=%q", shareOut.Code, shareOut.Msg)
+	}
+	localShareRows := mustContractSlice(t, shareOut.Data, "share list data")
+
+	remoteUsageOut := requestContractEnvelope(t, router, adminToken, "/api/v1/federation/share/remote-usage/list", nil)
+	if remoteUsageOut.Code != 0 {
+		t.Fatalf("remote usage list failed: code=%d msg=%q", remoteUsageOut.Code, remoteUsageOut.Msg)
+	}
+	remoteUsageRows := mustContractSlice(t, remoteUsageOut.Data, "remote usage data")
+	if len(remoteUsageRows) != 0 {
+		t.Fatalf("expected no remote usage rows in local-only fixture, got %d", len(remoteUsageRows))
+	}
+
+	flowByShare := make(map[int64]int64)
+	for _, row := range remoteUsageRows {
+		m, ok := row.(map[string]interface{})
+		if !ok {
+			continue
+		}
+		shareID := contractValueAsInt64(m["shareId"])
+		currentFlow := contractValueAsInt64(m["currentFlow"])
+		if shareID > 0 && currentFlow > 0 {
+			if currentFlow > flowByShare[shareID] {
+				flowByShare[shareID] = currentFlow
+			}
+		}
+	}
+	for _, row := range localShareRows {
+		m, ok := row.(map[string]interface{})
+		if !ok {
+			continue
+		}
+		shareID := contractValueAsInt64(m["id"])
+		currentFlow := contractValueAsInt64(m["currentFlow"])
+		if shareID > 0 && currentFlow > 0 {
+			if currentFlow > flowByShare[shareID] {
+				flowByShare[shareID] = currentFlow
+			}
+		}
+	}
+
+	shareFlow := flowByShare[share.ID]
+	if shareFlow <= 0 {
+		t.Fatalf("expected merged share flow > 0 for share %d", share.ID)
+	}
+
+	forwardCountByShare := make(map[int64]int)
+	for _, row := range forwardRows {
+		m, ok := row.(map[string]interface{})
+		if !ok {
+			continue
+		}
+		sid := contractParseShareIDFromTunnelName(contractValueAsString(m["tunnelName"]))
+		if sid > 0 && flowByShare[sid] > 0 {
+			forwardCountByShare[sid] = forwardCountByShare[sid] + 1
+		}
+	}
+
+	count := forwardCountByShare[share.ID]
+	if count != 2 {
+		t.Fatalf("expected 2 forwards sharing share %d, got %d", share.ID, count)
+	}
+
+	expectedEach := shareFlow / int64(count)
+	if expectedEach < 1 {
+		expectedEach = 1
+	}
+
+	findForward := func(forwardID int64) map[string]interface{} {
+		t.Helper()
+		for _, row := range forwardRows {
+			m, ok := row.(map[string]interface{})
+			if !ok {
+				continue
+			}
+			if contractValueAsInt64(m["id"]) == forwardID {
+				return m
+			}
+		}
+		t.Fatalf("forward %d not found in /forward/list response", forwardID)
+		return nil
+	}
+
+	for _, forwardID := range []int64{forwardIDA, forwardIDB} {
+		forward := findForward(forwardID)
+		sid := contractParseShareIDFromTunnelName(contractValueAsString(forward["tunnelName"]))
+		if sid != share.ID {
+			t.Fatalf("expected parsed shareID=%d, got %d for forward %d", share.ID, sid, forwardID)
+		}
+
+		directFlow := contractValueAsInt64(forward["inFlow"]) + contractValueAsInt64(forward["outFlow"])
+		if directFlow != 0 {
+			t.Fatalf("fixture expectation failed: directFlow should be 0 for forward %d, got %d", forwardID, directFlow)
+		}
+
+		displayFlow := int64(0)
+		if directFlow > 0 {
+			displayFlow = directFlow
+		} else {
+			shareFlowForForward := flowByShare[sid]
+			if shareFlowForForward > 0 {
+				cnt := forwardCountByShare[sid]
+				if cnt <= 0 {
+					cnt = 1
+				}
+				estimated := shareFlowForForward / int64(cnt)
+				if estimated < 1 {
+					estimated = 1
+				}
+				displayFlow = estimated
+			}
+		}
+
+		if displayFlow <= 0 {
+			t.Fatalf("expected displayFlow > 0 for forward %d, got %d", forwardID, displayFlow)
+		}
+		if displayFlow != expectedEach {
+			t.Fatalf("expected displayFlow=%d for forward %d, got %d", expectedEach, forwardID, displayFlow)
+		}
+	}
+}
+
+func TestFederationForwardCardFlowLinkageContractResolvesShareByTunnelBindingWhenTunnelNameIsCustom(t *testing.T) {
+	secret := "federation-forward-binding-flow-contract-jwt"
+	router, r := setupContractRouter(t, secret)
+
+	adminToken, err := auth.GenerateToken(1, "admin_user", 0, secret)
+	if err != nil {
+		t.Fatalf("generate admin token: %v", err)
+	}
+
+	now := time.Now().UnixMilli()
+	remoteShareID := int64(901)
+	remoteShareFlow := int64(5000)
+
+	if err := r.DB().Exec(`
+		INSERT INTO node(name, secret, server_ip, server_ip_v4, server_ip_v6, port, interface_name, version, http, tls, socks, created_time, updated_time, status, tcp_listen_addr, udp_listen_addr, inx, is_remote, remote_url, remote_token, remote_config)
+		VALUES(?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+	`,
+		"flow-binding-remote-node", "flow-binding-remote-secret", "10.31.41.51", "10.31.41.51", "", "33000-33020", "", "v1", 1, 1, 1, now, now, 1, "[::]", "[::]", 0, 1, "", "", fmt.Sprintf(`{"shareId":%d,"maxBandwidth":0,"currentFlow":%d,"portRangeStart":33000,"portRangeEnd":33020}`, remoteShareID, remoteShareFlow),
+	).Error; err != nil {
+		t.Fatalf("insert remote node: %v", err)
+	}
+	remoteNodeID := mustLastInsertID(t, r, "flow-binding-remote-node")
+
+	if err := r.DB().Exec(`
+		INSERT INTO tunnel(name, type, protocol, flow, created_time, updated_time, status, in_ip, inx)
+		VALUES(?, ?, ?, ?, ?, ?, ?, ?, ?)
+	`, "federation-port-forward-custom-name", 1, "tcp", 1, now, now, 1, "", 0).Error; err != nil {
+		t.Fatalf("insert custom tunnel: %v", err)
+	}
+	tunnelID := mustLastInsertID(t, r, "flow-binding-custom-tunnel")
+
+	if err := r.DB().Exec(`
+		INSERT INTO forward(user_id, user_name, name, tunnel_id, remote_addr, strategy, in_flow, out_flow, created_time, updated_time, status, inx)
+		VALUES(?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+	`, 1, "admin_user", "flow-binding-forward", tunnelID, "1.1.1.1:443", "fifo", 0, 0, now, now, 1, 0).Error; err != nil {
+		t.Fatalf("insert forward: %v", err)
+	}
+	forwardID := mustLastInsertID(t, r, "flow-binding-forward")
+
+	if err := r.DB().Exec(`INSERT INTO forward_port(forward_id, node_id, port) VALUES(?, ?, ?)`, forwardID, remoteNodeID, 33001).Error; err != nil {
+		t.Fatalf("insert forward_port: %v", err)
+	}
+
+	forwardOut := requestContractEnvelope(t, router, adminToken, "/api/v1/forward/list", nil)
+	if forwardOut.Code != 0 {
+		t.Fatalf("forward list failed: code=%d msg=%q", forwardOut.Code, forwardOut.Msg)
+	}
+	forwardRows := mustContractSlice(t, forwardOut.Data, "forward list data")
+
+	shareOut := requestContractEnvelope(t, router, adminToken, "/api/v1/federation/share/list", nil)
+	if shareOut.Code != 0 {
+		t.Fatalf("share list failed: code=%d msg=%q", shareOut.Code, shareOut.Msg)
+	}
+	localShareRows := mustContractSlice(t, shareOut.Data, "share list data")
+
+	remoteUsageOut := requestContractEnvelope(t, router, adminToken, "/api/v1/federation/share/remote-usage/list", nil)
+	if remoteUsageOut.Code != 0 {
+		t.Fatalf("remote usage list failed: code=%d msg=%q", remoteUsageOut.Code, remoteUsageOut.Msg)
+	}
+	remoteUsageRows := mustContractSlice(t, remoteUsageOut.Data, "remote usage data")
+	if len(remoteUsageRows) == 0 {
+		t.Fatalf("expected non-empty remote usage rows")
+	}
+
+	findForward := func(id int64) map[string]interface{} {
+		t.Helper()
+		for _, row := range forwardRows {
+			m, ok := row.(map[string]interface{})
+			if !ok {
+				continue
+			}
+			if contractValueAsInt64(m["id"]) == id {
+				return m
+			}
+		}
+		t.Fatalf("forward %d not found in /forward/list response", id)
+		return nil
+	}
+
+	flowByShare := make(map[int64]int64)
+	shareIDsByTunnel := make(map[int64]map[int64]struct{})
+
+	for _, row := range remoteUsageRows {
+		m, ok := row.(map[string]interface{})
+		if !ok {
+			continue
+		}
+		shareID := contractValueAsInt64(m["shareId"])
+		currentFlow := contractValueAsInt64(m["currentFlow"])
+		if shareID > 0 && currentFlow > 0 {
+			if currentFlow > flowByShare[shareID] {
+				flowByShare[shareID] = currentFlow
+			}
+		}
+
+		bindings, _ := m["bindings"].([]interface{})
+		for _, bindingRaw := range bindings {
+			binding, ok := bindingRaw.(map[string]interface{})
+			if !ok {
+				continue
+			}
+			tunnelIDVal := contractValueAsInt64(binding["tunnelId"])
+			chainType := contractValueAsInt64(binding["chainType"])
+			if shareID <= 0 || tunnelIDVal <= 0 {
+				continue
+			}
+			if chainType != 1 {
+				continue
+			}
+			setByTunnel, ok := shareIDsByTunnel[tunnelIDVal]
+			if !ok {
+				setByTunnel = make(map[int64]struct{})
+				shareIDsByTunnel[tunnelIDVal] = setByTunnel
+			}
+			setByTunnel[shareID] = struct{}{}
+		}
+	}
+
+	for _, row := range localShareRows {
+		m, ok := row.(map[string]interface{})
+		if !ok {
+			continue
+		}
+		shareID := contractValueAsInt64(m["id"])
+		currentFlow := contractValueAsInt64(m["currentFlow"])
+		if shareID > 0 && currentFlow > 0 {
+			if currentFlow > flowByShare[shareID] {
+				flowByShare[shareID] = currentFlow
+			}
+		}
+	}
+
+	targetForward := findForward(forwardID)
+	parsedByName := contractParseShareIDFromTunnelName(contractValueAsString(targetForward["tunnelName"]))
+	if parsedByName != 0 {
+		t.Fatalf("expected custom tunnel name cannot be parsed as Share-*-Port-*, got %d", parsedByName)
+	}
+
+	resolveShareIDForForward := func(forward map[string]interface{}) int64 {
+		candidates := make(map[int64]struct{})
+
+		shareIDFromName := contractParseShareIDFromTunnelName(contractValueAsString(forward["tunnelName"]))
+		if shareIDFromName > 0 {
+			candidates[shareIDFromName] = struct{}{}
+		}
+
+		tunnelIDVal := contractValueAsInt64(forward["tunnelId"])
+		if setByTunnel, ok := shareIDsByTunnel[tunnelIDVal]; ok {
+			for sid := range setByTunnel {
+				candidates[sid] = struct{}{}
+			}
+		}
+
+		var bestShareID int64
+		bestFlow := int64(0)
+		for sid := range candidates {
+			flow := flowByShare[sid]
+			if flow > bestFlow {
+				bestFlow = flow
+				bestShareID = sid
+			}
+		}
+		return bestShareID
+	}
+
+	resolvedShareID := resolveShareIDForForward(targetForward)
+	if resolvedShareID != remoteShareID {
+		t.Fatalf("expected resolved shareID=%d via tunnel binding, got %d", remoteShareID, resolvedShareID)
+	}
+
+	forwardCountByShare := make(map[int64]int)
+	resolvedByForwardID := make(map[int64]int64)
+	for _, row := range forwardRows {
+		m, ok := row.(map[string]interface{})
+		if !ok {
+			continue
+		}
+		fid := contractValueAsInt64(m["id"])
+		sid := resolveShareIDForForward(m)
+		if sid > 0 {
+			resolvedByForwardID[fid] = sid
+		}
+		if sid > 0 && flowByShare[sid] > 0 {
+			forwardCountByShare[sid] = forwardCountByShare[sid] + 1
+		}
+	}
+
+	directFlow := contractValueAsInt64(targetForward["inFlow"]) + contractValueAsInt64(targetForward["outFlow"])
+	if directFlow != 0 {
+		t.Fatalf("fixture expectation failed: directFlow should be 0, got %d", directFlow)
+	}
+
+	shareFlow := flowByShare[resolvedByForwardID[forwardID]]
+	if shareFlow <= 0 {
+		t.Fatalf("expected merged share flow > 0 for resolved share %d", resolvedByForwardID[forwardID])
+	}
+
+	count := forwardCountByShare[resolvedByForwardID[forwardID]]
+	if count <= 0 {
+		count = 1
+	}
+	estimated := shareFlow / int64(count)
+	if estimated < 1 {
+		estimated = 1
+	}
+
+	displayFlow := estimated
+	if displayFlow <= 0 {
+		t.Fatalf("expected displayFlow > 0 after tunnel-binding-based merge, got %d", displayFlow)
+	}
+	if displayFlow != remoteShareFlow {
+		t.Fatalf("expected displayFlow=%d, got %d", remoteShareFlow, displayFlow)
+	}
+}
+
+func requestContractEnvelope(t *testing.T, router http.Handler, token string, path string, body interface{}) response.R {
+	t.Helper()
+
+	payload := []byte("{}")
+	if body != nil {
+		raw, err := json.Marshal(body)
+		if err != nil {
+			t.Fatalf("marshal request body for %s: %v", path, err)
+		}
+		payload = raw
+	}
+
+	req := httptest.NewRequest(http.MethodPost, path, bytes.NewReader(payload))
+	req.Header.Set("Authorization", token)
+	req.Header.Set("Content-Type", "application/json")
+	res := httptest.NewRecorder()
+	router.ServeHTTP(res, req)
+
+	if res.Code != http.StatusOK {
+		t.Fatalf("expected http 200 for %s, got %d", path, res.Code)
+	}
+
+	var out response.R
+	if err := json.NewDecoder(res.Body).Decode(&out); err != nil {
+		t.Fatalf("decode response for %s: %v", path, err)
+	}
+
+	return out
+}
+
+func mustContractSlice(t *testing.T, data interface{}, label string) []interface{} {
+	t.Helper()
+
+	rows, ok := data.([]interface{})
+	if !ok {
+		t.Fatalf("expected %s to be []interface{}, got %T", label, data)
+	}
+	return rows
+}
+
+func contractParseShareIDFromTunnelName(tunnelName string) int64 {
+	normalized := strings.TrimSpace(tunnelName)
+	if !strings.HasPrefix(normalized, "Share-") {
+		return 0
+	}
+	raw := strings.TrimPrefix(normalized, "Share-")
+	idx := strings.Index(raw, "-Port-")
+	if idx <= 0 {
+		return 0
+	}
+	shareID, err := strconv.ParseInt(strings.TrimSpace(raw[:idx]), 10, 64)
+	if err != nil || shareID <= 0 {
+		return 0
+	}
+	return shareID
+}
+
+func contractValueAsInt64(v interface{}) int64 {
+	switch n := v.(type) {
+	case int64:
+		return n
+	case int:
+		return int64(n)
+	case float64:
+		return int64(n)
+	case json.Number:
+		i, err := n.Int64()
+		if err == nil {
+			return i
+		}
+		f, err := n.Float64()
+		if err == nil {
+			return int64(f)
+		}
+		return 0
+	case string:
+		i, err := strconv.ParseInt(strings.TrimSpace(n), 10, 64)
+		if err == nil {
+			return i
+		}
+		return 0
+	default:
+		return 0
+	}
+}
+
+func contractValueAsString(v interface{}) string {
+	s, _ := v.(string)
+	return s
+}
@@ -0,0 +1,201 @@
+package contract_test
+
+import (
+	"bytes"
+	"encoding/json"
+	"net/http"
+	"net/http/httptest"
+	"strings"
+	"testing"
+	"time"
+
+	"go-backend/internal/auth"
+	"go-backend/internal/http/response"
+)
+
+const contractBytesPerGB int64 = 1024 * 1024 * 1024
+
+func TestForwardResumeBlockedWhenUserFlowExceeded(t *testing.T) {
+	secret := "contract-jwt-secret"
+	router, repo := setupContractRouter(t, secret)
+	now := time.Now().UnixMilli()
+
+	userID := int64(2)
+	tunnelID := int64(1)
+	forwardID := int64(1)
+
+	flowGB := int64(120)
+	used := flowGB*contractBytesPerGB + 1
+
+	if err := repo.DB().Exec(`
+		INSERT INTO user(id, user, pwd, role_id, exp_time, flow, in_flow, out_flow, flow_reset_time, num, created_time, updated_time, status)
+		VALUES(?, 'flow_user', 'pwd', 1, 2727251700000, ?, ?, 0, 1, 99999, ?, ?, 1)
+	`, userID, flowGB, used, now, now).Error; err != nil {
+		t.Fatalf("insert user: %v", err)
+	}
+
+	if err := repo.DB().Exec(`
+		INSERT INTO tunnel(id, name, traffic_ratio, type, protocol, flow, created_time, updated_time, status, in_ip, inx)
+		VALUES(?, 'flow_tunnel', 1.0, 1, 'tls', 99999, ?, ?, 1, NULL, 0)
+	`, tunnelID, now, now).Error; err != nil {
+		t.Fatalf("insert tunnel: %v", err)
+	}
+	if err := repo.DB().Exec(`
+		INSERT INTO user_tunnel(id, user_id, tunnel_id, speed_id, num, flow, in_flow, out_flow, flow_reset_time, exp_time, status)
+		VALUES(10, ?, ?, NULL, 99999, 99999, 0, 0, 1, 2727251700000, 1)
+	`, userID, tunnelID).Error; err != nil {
+		t.Fatalf("insert user_tunnel: %v", err)
+	}
+	if err := repo.DB().Exec(`
+		INSERT INTO forward(id, user_id, user_name, name, tunnel_id, remote_addr, strategy, in_flow, out_flow, created_time, updated_time, status, inx)
+		VALUES(?, ?, 'flow_user', 'flow_forward', ?, '8.8.8.8:53', 'fifo', 0, 0, ?, ?, 0, 0)
+	`, forwardID, userID, tunnelID, now, now).Error; err != nil {
+		t.Fatalf("insert forward: %v", err)
+	}
+
+	token, err := auth.GenerateToken(userID, "flow_user", 1, secret)
+	if err != nil {
+		t.Fatalf("generate token: %v", err)
+	}
+
+	req := httptest.NewRequest(http.MethodPost, "/api/v1/forward/resume", bytes.NewBufferString(`{"id":1}`))
+	req.Header.Set("Authorization", token)
+	req.Header.Set("Content-Type", "application/json")
+	res := httptest.NewRecorder()
+
+	router.ServeHTTP(res, req)
+
+	var out response.R
+	if err := json.NewDecoder(res.Body).Decode(&out); err != nil {
+		t.Fatalf("decode response: %v", err)
+	}
+	if out.Code == 0 {
+		t.Fatalf("expected non-zero code when flow exceeded")
+	}
+	if !strings.Contains(out.Msg, "流量") {
+		t.Fatalf("expected flow exceeded message, got %q", out.Msg)
+	}
+
+	status := mustQueryInt(t, repo, `SELECT status FROM forward WHERE id = ?`, forwardID)
+	if status != 0 {
+		t.Fatalf("expected forward status to remain 0, got %d", status)
+	}
+}
+
+func TestForwardResumeBlockedWhenUserTunnelFlowExceeded(t *testing.T) {
+	secret := "contract-jwt-secret"
+	router, repo := setupContractRouter(t, secret)
+	now := time.Now().UnixMilli()
+
+	userID := int64(2)
+	tunnelID := int64(1)
+	forwardID := int64(1)
+
+	if err := repo.DB().Exec(`
+		INSERT INTO user(id, user, pwd, role_id, exp_time, flow, in_flow, out_flow, flow_reset_time, num, created_time, updated_time, status)
+		VALUES(?, 'ut_flow_user', 'pwd', 1, 2727251700000, 99999, 0, 0, 1, 99999, ?, ?, 1)
+	`, userID, now, now).Error; err != nil {
+		t.Fatalf("insert user: %v", err)
+	}
+
+	if err := repo.DB().Exec(`
+		INSERT INTO tunnel(id, name, traffic_ratio, type, protocol, flow, created_time, updated_time, status, in_ip, inx)
+		VALUES(?, 'ut_flow_tunnel', 1.0, 1, 'tls', 99999, ?, ?, 1, NULL, 0)
+	`, tunnelID, now, now).Error; err != nil {
+		t.Fatalf("insert tunnel: %v", err)
+	}
+
+	utFlowGB := int64(120)
+	utUsed := utFlowGB * contractBytesPerGB
+	if err := repo.DB().Exec(`
+		INSERT INTO user_tunnel(id, user_id, tunnel_id, speed_id, num, flow, in_flow, out_flow, flow_reset_time, exp_time, status)
+		VALUES(10, ?, ?, NULL, 99999, ?, ?, 0, 1, 2727251700000, 1)
+	`, userID, tunnelID, utFlowGB, utUsed).Error; err != nil {
+		t.Fatalf("insert user_tunnel: %v", err)
+	}
+	if err := repo.DB().Exec(`
+		INSERT INTO forward(id, user_id, user_name, name, tunnel_id, remote_addr, strategy, in_flow, out_flow, created_time, updated_time, status, inx)
+		VALUES(?, ?, 'ut_flow_user', 'ut_flow_forward', ?, '8.8.8.8:53', 'fifo', 0, 0, ?, ?, 0, 0)
+	`, forwardID, userID, tunnelID, now, now).Error; err != nil {
+		t.Fatalf("insert forward: %v", err)
+	}
+
+	token, err := auth.GenerateToken(userID, "ut_flow_user", 1, secret)
+	if err != nil {
+		t.Fatalf("generate token: %v", err)
+	}
+
+	req := httptest.NewRequest(http.MethodPost, "/api/v1/forward/resume", bytes.NewBufferString(`{"id":1}`))
+	req.Header.Set("Authorization", token)
+	req.Header.Set("Content-Type", "application/json")
+	res := httptest.NewRecorder()
+
+	router.ServeHTTP(res, req)
+
+	var out response.R
+	if err := json.NewDecoder(res.Body).Decode(&out); err != nil {
+		t.Fatalf("decode response: %v", err)
+	}
+	if out.Code == 0 {
+		t.Fatalf("expected non-zero code when tunnel flow exceeded")
+	}
+	if !strings.Contains(out.Msg, "隧道") || !strings.Contains(out.Msg, "流量") {
+		t.Fatalf("expected tunnel flow exceeded message, got %q", out.Msg)
+	}
+}
+
+func TestForwardCreateBlockedWhenFlowExceeded(t *testing.T) {
+	secret := "contract-jwt-secret"
+	router, repo := setupContractRouter(t, secret)
+	now := time.Now().UnixMilli()
+
+	userID := int64(2)
+	tunnelID := int64(1)
+
+	flowGB := int64(120)
+	used := flowGB*contractBytesPerGB + 1
+
+	if err := repo.DB().Exec(`
+		INSERT INTO user(id, user, pwd, role_id, exp_time, flow, in_flow, out_flow, flow_reset_time, num, created_time, updated_time, status)
+		VALUES(?, 'create_flow_user', 'pwd', 1, 2727251700000, ?, ?, 0, 1, 99999, ?, ?, 1)
+	`, userID, flowGB, used, now, now).Error; err != nil {
+		t.Fatalf("insert user: %v", err)
+	}
+
+	if err := repo.DB().Exec(`
+		INSERT INTO tunnel(id, name, traffic_ratio, type, protocol, flow, created_time, updated_time, status, in_ip, inx)
+		VALUES(?, 'create_flow_tunnel', 1.0, 1, 'tls', 99999, ?, ?, 1, NULL, 0)
+	`, tunnelID, now, now).Error; err != nil {
+		t.Fatalf("insert tunnel: %v", err)
+	}
+	if err := repo.DB().Exec(`
+		INSERT INTO user_tunnel(id, user_id, tunnel_id, speed_id, num, flow, in_flow, out_flow, flow_reset_time, exp_time, status)
+		VALUES(10, ?, ?, NULL, 99999, 99999, 0, 0, 1, 2727251700000, 1)
+	`, userID, tunnelID).Error; err != nil {
+		t.Fatalf("insert user_tunnel: %v", err)
+	}
+
+	token, err := auth.GenerateToken(userID, "create_flow_user", 1, secret)
+	if err != nil {
+		t.Fatalf("generate token: %v", err)
+	}
+
+	payload := `{"tunnelId":1,"name":"n","remoteAddr":"1.1.1.1:53"}`
+	req := httptest.NewRequest(http.MethodPost, "/api/v1/forward/create", bytes.NewBufferString(payload))
+	req.Header.Set("Authorization", token)
+	req.Header.Set("Content-Type", "application/json")
+	res := httptest.NewRecorder()
+
+	router.ServeHTTP(res, req)
+
+	var out response.R
+	if err := json.NewDecoder(res.Body).Decode(&out); err != nil {
+		t.Fatalf("decode response: %v", err)
+	}
+	if out.Code == 0 {
+		t.Fatalf("expected non-zero code when flow exceeded")
+	}
+	if !strings.Contains(out.Msg, "流量") {
+		t.Fatalf("expected flow exceeded message, got %q", out.Msg)
+	}
+}
@@ -2,10 +2,13 @@ package contract_test

 import (
 	"bytes"
+	"database/sql"
 	"encoding/json"
 	"net/http"
 	"net/http/httptest"
 	"strconv"
+	"strings"
+	"sync"
 	"testing"
 	"time"

@@ -28,7 +31,7 @@ func TestForwardOwnershipAndScopeContracts(t *testing.T) {
 	if err := repo.DB().Exec(`
 		INSERT INTO tunnel(name, traffic_ratio, type, protocol, flow, created_time, updated_time, status, in_ip, inx)
 		VALUES(?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
-	`, "contract-tunnel", 1.0, 1, "tls", 99999, now, now, 1, nil, 0).Error; err != nil {
+	`, "contract-tunnel", 2.5, 1, "tls", 99999, now, now, 1, nil, 0).Error; err != nil {
 		t.Fatalf("insert tunnel: %v", err)
 	}
 	tunnelID := mustLastInsertID(t, repo, "contract-tunnel")
@@ -108,9 +111,20 @@ func TestForwardOwnershipAndScopeContracts(t *testing.T) {
 		if !ok {
 			t.Fatalf("expected object item, got %T", arr[0])
 		}
-		if got := int64(item["id"].(float64)); got != userForwardID {
+		idFloat, ok := item["id"].(float64)
+		if !ok {
+			t.Fatalf("expected id to be float64, got %T", item["id"])
+		}
+		if got := int64(idFloat); got != userForwardID {
 			t.Fatalf("expected forward id %d, got %d", userForwardID, got)
 		}
+		ratioFloat, ok := item["tunnelTrafficRatio"].(float64)
+		if !ok {
+			t.Fatalf("expected tunnelTrafficRatio to be float64, got %T", item["tunnelTrafficRatio"])
+		}
+		if ratioFloat != 2.5 {
+			t.Fatalf("expected tunnelTrafficRatio 2.5, got %v", ratioFloat)
+		}
 	})

 	t.Run("forward diagnose returns structured payload", func(t *testing.T) {
@@ -143,7 +157,11 @@ func TestForwardOwnershipAndScopeContracts(t *testing.T) {
 		if _, ok := first["message"]; !ok {
 			t.Fatalf("expected message field in diagnosis result")
 		}
-		if got := int(first["fromChainType"].(float64)); got != 1 {
+		fromChainTypeFloat, ok := first["fromChainType"].(float64)
+		if !ok {
+			t.Fatalf("expected fromChainType to be float64, got %T", first["fromChainType"])
+		}
+		if got := int(fromChainTypeFloat); got != 1 {
 			t.Fatalf("expected fromChainType=1, got %d", got)
 		}
 	})
@@ -471,6 +489,896 @@ func TestUserTunnelReassignmentKeepsStableID(t *testing.T) {
 	}
 }

+func TestUserTunnelSaveIgnoresDeletedSpeedLimitContract(t *testing.T) {
+	secret := "contract-jwt-secret"
+	router, repo := setupContractRouter(t, secret)
+	now := time.Now().UnixMilli()
+
+	adminToken, err := auth.GenerateToken(1, "admin_user", 0, secret)
+	if err != nil {
+		t.Fatalf("generate admin token: %v", err)
+	}
+
+	if err := repo.DB().Exec(`
+		INSERT INTO user(id, user, pwd, role_id, exp_time, flow, in_flow, out_flow, flow_reset_time, num, created_time, updated_time, status)
+		VALUES(101, 'user_tunnel_speed_user_a', 'pwd', 1, 2727251700000, 99999, 0, 0, 1, 99999, ?, ?, 1)
+	`, now, now).Error; err != nil {
+		t.Fatalf("insert user a: %v", err)
+	}
+
+	if err := repo.DB().Exec(`
+		INSERT INTO tunnel(name, traffic_ratio, type, protocol, flow, created_time, updated_time, status, in_ip, inx)
+		VALUES(?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+	`, "user-tunnel-missing-speed-tunnel", 1.0, 1, "tls", 99999, now, now, 1, nil, 0).Error; err != nil {
+		t.Fatalf("insert tunnel: %v", err)
+	}
+	tunnelID := mustLastInsertID(t, repo, "user-tunnel-missing-speed-tunnel")
+
+	if err := repo.DB().Exec(`
+		INSERT INTO speed_limit(name, speed, tunnel_id, tunnel_name, created_time, updated_time, status)
+		VALUES(?, ?, NULL, NULL, ?, NULL, ?)
+	`, "user-tunnel-missing-speed-limit", 2048, now, 1).Error; err != nil {
+		t.Fatalf("insert speed limit: %v", err)
+	}
+	speedID := mustLastInsertID(t, repo, "user-tunnel-missing-speed-limit")
+
+	if err := repo.DB().Exec(`
+		INSERT INTO user_tunnel(id, user_id, tunnel_id, speed_id, num, flow, in_flow, out_flow, flow_reset_time, exp_time, status)
+		VALUES(31, 101, ?, ?, 999, 99999, 0, 0, 1, 2727251700000, 1)
+	`, tunnelID, speedID).Error; err != nil {
+		t.Fatalf("insert user_tunnel: %v", err)
+	}
+
+	if err := repo.DB().Exec(`DELETE FROM speed_limit WHERE id = ?`, speedID).Error; err != nil {
+		t.Fatalf("delete speed limit: %v", err)
+	}
+
+	t.Run("user tunnel update auto clears missing speed", func(t *testing.T) {
+		updatePayload := map[string]interface{}{
+			"id":            31,
+			"flow":          99999,
+			"num":           999,
+			"expTime":       int64(2727251700000),
+			"flowResetTime": 1,
+			"status":        1,
+			"speedId":       speedID,
+		}
+		updateBody, err := json.Marshal(updatePayload)
+		if err != nil {
+			t.Fatalf("marshal update payload: %v", err)
+		}
+		updateReq := httptest.NewRequest(http.MethodPost, "/api/v1/tunnel/user/update", bytes.NewReader(updateBody))
+		updateReq.Header.Set("Authorization", adminToken)
+		updateReq.Header.Set("Content-Type", "application/json")
+		updateRes := httptest.NewRecorder()
+		router.ServeHTTP(updateRes, updateReq)
+		assertCode(t, updateRes, 0)
+
+		var updatedSpeed sql.NullInt64
+		if err := repo.DB().Raw(`SELECT speed_id FROM user_tunnel WHERE id = 31`).Row().Scan(&updatedSpeed); err != nil {
+			t.Fatalf("query updated user_tunnel speed_id: %v", err)
+		}
+		if updatedSpeed.Valid {
+			t.Fatalf("expected updated user_tunnel speed_id to be NULL, got %d", updatedSpeed.Int64)
+		}
+	})
+
+	t.Run("user tunnel batch assign auto clears missing speed", func(t *testing.T) {
+		if err := repo.DB().Exec(`UPDATE user_tunnel SET speed_id = ? WHERE id = 31`, speedID).Error; err != nil {
+			t.Fatalf("prepare user_tunnel speed_id for batch assign: %v", err)
+		}
+
+		assignPayload := map[string]interface{}{
+			"userId": 101,
+			"tunnels": []map[string]interface{}{{
+				"tunnelId": tunnelID,
+				"speedId":  speedID,
+			}},
+		}
+		assignBody, err := json.Marshal(assignPayload)
+		if err != nil {
+			t.Fatalf("marshal assign payload: %v", err)
+		}
+		assignReq := httptest.NewRequest(http.MethodPost, "/api/v1/tunnel/user/batch-assign", bytes.NewReader(assignBody))
+		assignReq.Header.Set("Authorization", adminToken)
+		assignReq.Header.Set("Content-Type", "application/json")
+		assignRes := httptest.NewRecorder()
+		router.ServeHTTP(assignRes, assignReq)
+		assertCode(t, assignRes, 0)
+
+		var assignedSpeed sql.NullInt64
+		if err := repo.DB().Raw(`SELECT speed_id FROM user_tunnel WHERE id = 31`).Row().Scan(&assignedSpeed); err != nil {
+			t.Fatalf("query assigned user_tunnel speed_id: %v", err)
+		}
+		if assignedSpeed.Valid {
+			t.Fatalf("expected assigned user_tunnel speed_id to be NULL, got %d", assignedSpeed.Int64)
+		}
+	})
+}
+
+func TestForwardSpeedIDWriteAndClearContracts(t *testing.T) {
+	secret := "contract-jwt-secret"
+	router, repo := setupContractRouter(t, secret)
+	now := time.Now().UnixMilli()
+
+	adminToken, err := auth.GenerateToken(1, "admin_user", 0, secret)
+	if err != nil {
+		t.Fatalf("generate admin token: %v", err)
+	}
+
+	if err := repo.DB().Exec(`
+		INSERT INTO user(id, user, pwd, role_id, exp_time, flow, in_flow, out_flow, flow_reset_time, num, created_time, updated_time, status)
+		VALUES(2, 'speed_user', '3c85cdebade1c51cf64ca9f3c09d182d', 1, 2727251700000, 99999, 0, 0, 1, 99999, ?, ?, 1)
+	`, now, now).Error; err != nil {
+		t.Fatalf("insert user: %v", err)
+	}
+
+	if err := repo.DB().Exec(`
+		INSERT INTO tunnel(name, traffic_ratio, type, protocol, flow, created_time, updated_time, status, in_ip, inx)
+		VALUES(?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+	`, "forward-speed-tunnel", 1.0, 1, "tls", 99999, now, now, 1, nil, 0).Error; err != nil {
+		t.Fatalf("insert tunnel: %v", err)
+	}
+	tunnelID := mustLastInsertID(t, repo, "forward-speed-tunnel")
+
+	if err := repo.DB().Exec(`
+		INSERT INTO node(name, secret, server_ip, server_ip_v4, server_ip_v6, port, interface_name, version, http, tls, socks, created_time, updated_time, status, tcp_listen_addr, udp_listen_addr, inx)
+		VALUES(?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+	`, "forward-speed-node", "forward-speed-secret", "10.30.0.1", "10.30.0.1", "", "31000-31010", "", "v1", 1, 1, 1, now, now, 1, "[::]", "[::]", 0).Error; err != nil {
+		t.Fatalf("insert node: %v", err)
+	}
+	nodeID := mustLastInsertID(t, repo, "forward-speed-node")
+
+	if err := repo.DB().Exec(`
+		INSERT INTO chain_tunnel(tunnel_id, chain_type, node_id, port, strategy, inx, protocol)
+		VALUES(?, 1, ?, 31001, 'round', 1, 'tls')
+	`, tunnelID, nodeID).Error; err != nil {
+		t.Fatalf("insert chain_tunnel: %v", err)
+	}
+
+	if err := repo.DB().Exec(`
+		INSERT INTO speed_limit(name, speed, tunnel_id, tunnel_name, created_time, updated_time, status)
+		VALUES(?, ?, NULL, NULL, ?, NULL, ?)
+	`, "forward-speed-limit-a", 2048, now, 1).Error; err != nil {
+		t.Fatalf("insert speed limit a: %v", err)
+	}
+	speedIDA := mustLastInsertID(t, repo, "forward-speed-limit-a")
+
+	if err := repo.DB().Exec(`
+		INSERT INTO speed_limit(name, speed, tunnel_id, tunnel_name, created_time, updated_time, status)
+		VALUES(?, ?, NULL, NULL, ?, NULL, ?)
+	`, "forward-speed-limit-b", 4096, now, 1).Error; err != nil {
+		t.Fatalf("insert speed limit b: %v", err)
+	}
+	speedIDB := mustLastInsertID(t, repo, "forward-speed-limit-b")
+
+	server := httptest.NewServer(router)
+	defer server.Close()
+	stopNode := startMockNodeSession(t, server.URL, "forward-speed-secret")
+	defer stopNode()
+
+	createPayload := map[string]interface{}{
+		"name":       "forward-speed-target",
+		"tunnelId":   tunnelID,
+		"remoteAddr": "1.1.1.1:443",
+		"strategy":   "fifo",
+		"speedId":    speedIDA,
+	}
+	createBody, err := json.Marshal(createPayload)
+	if err != nil {
+		t.Fatalf("marshal create payload: %v", err)
+	}
+	createReq := httptest.NewRequest(http.MethodPost, "/api/v1/forward/create", bytes.NewReader(createBody))
+	createReq.Header.Set("Authorization", adminToken)
+	createReq.Header.Set("Content-Type", "application/json")
+	createRes := httptest.NewRecorder()
+	router.ServeHTTP(createRes, createReq)
+	assertCode(t, createRes, 0)
+
+	forwardID := mustLastInsertID(t, repo, "forward-speed-target")
+	storedSpeed := repo.DB().Raw(`SELECT speed_id FROM forward WHERE id = ?`, forwardID).Row()
+	var createdSpeed sql.NullInt64
+	if err := storedSpeed.Scan(&createdSpeed); err != nil {
+		t.Fatalf("query created forward speed_id: %v", err)
+	}
+	if !createdSpeed.Valid || createdSpeed.Int64 != speedIDA {
+		t.Fatalf("expected created speed_id=%d, got valid=%v value=%d", speedIDA, createdSpeed.Valid, createdSpeed.Int64)
+	}
+
+	updateToBPayload := map[string]interface{}{
+		"id":      forwardID,
+		"speedId": speedIDB,
+	}
+	updateToBBody, err := json.Marshal(updateToBPayload)
+	if err != nil {
+		t.Fatalf("marshal update-to-b payload: %v", err)
+	}
+	updateToBReq := httptest.NewRequest(http.MethodPost, "/api/v1/forward/update", bytes.NewReader(updateToBBody))
+	updateToBReq.Header.Set("Authorization", adminToken)
+	updateToBReq.Header.Set("Content-Type", "application/json")
+	updateToBRes := httptest.NewRecorder()
+	router.ServeHTTP(updateToBRes, updateToBReq)
+	assertCode(t, updateToBRes, 0)
+
+	storedSpeed = repo.DB().Raw(`SELECT speed_id FROM forward WHERE id = ?`, forwardID).Row()
+	var updatedSpeed sql.NullInt64
+	if err := storedSpeed.Scan(&updatedSpeed); err != nil {
+		t.Fatalf("query updated forward speed_id: %v", err)
+	}
+	if !updatedSpeed.Valid || updatedSpeed.Int64 != speedIDB {
+		t.Fatalf("expected updated speed_id=%d, got valid=%v value=%d", speedIDB, updatedSpeed.Valid, updatedSpeed.Int64)
+	}
+
+	clearPayload := map[string]interface{}{
+		"id":      forwardID,
+		"speedId": nil,
+	}
+	clearBody, err := json.Marshal(clearPayload)
+	if err != nil {
+		t.Fatalf("marshal clear payload: %v", err)
+	}
+	clearReq := httptest.NewRequest(http.MethodPost, "/api/v1/forward/update", bytes.NewReader(clearBody))
+	clearReq.Header.Set("Authorization", adminToken)
+	clearReq.Header.Set("Content-Type", "application/json")
+	clearRes := httptest.NewRecorder()
+	router.ServeHTTP(clearRes, clearReq)
+	assertCode(t, clearRes, 0)
+
+	storedSpeed = repo.DB().Raw(`SELECT speed_id FROM forward WHERE id = ?`, forwardID).Row()
+	var clearedSpeed sql.NullInt64
+	if err := storedSpeed.Scan(&clearedSpeed); err != nil {
+		t.Fatalf("query cleared forward speed_id: %v", err)
+	}
+	if clearedSpeed.Valid {
+		t.Fatalf("expected cleared speed_id to be NULL, got %d", clearedSpeed.Int64)
+	}
+}
+
+func TestForwardUpdateIgnoresDeletedSpeedLimitContract(t *testing.T) {
+	secret := "contract-jwt-secret"
+	router, repo := setupContractRouter(t, secret)
+
+	adminToken, err := auth.GenerateToken(1, "admin_user", 0, secret)
+	if err != nil {
+		t.Fatalf("generate admin token: %v", err)
+	}
+
+	now := time.Now().UnixMilli()
+	if err := repo.DB().Exec(`
+		INSERT INTO tunnel(name, traffic_ratio, type, protocol, flow, created_time, updated_time, status, in_ip, inx)
+		VALUES(?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+	`, "forward-update-missing-speed-tunnel", 1.0, 1, "tls", 99999, now, now, 1, nil, 0).Error; err != nil {
+		t.Fatalf("insert tunnel: %v", err)
+	}
+	tunnelID := mustLastInsertID(t, repo, "forward-update-missing-speed-tunnel")
+
+	if err := repo.DB().Exec(`
+		INSERT INTO node(name, secret, server_ip, server_ip_v4, server_ip_v6, port, interface_name, version, http, tls, socks, created_time, updated_time, status, tcp_listen_addr, udp_listen_addr, inx)
+		VALUES(?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+	`, "forward-update-missing-speed-node", "forward-update-missing-speed-secret", "10.32.0.1", "10.32.0.1", "", "42000-42010", "", "v1", 1, 1, 1, now, now, 1, "[::]", "[::]", 0).Error; err != nil {
+		t.Fatalf("insert node: %v", err)
+	}
+	nodeID := mustLastInsertID(t, repo, "forward-update-missing-speed-node")
+
+	if err := repo.DB().Exec(`
+		INSERT INTO chain_tunnel(tunnel_id, chain_type, node_id, port, strategy, inx, protocol)
+		VALUES(?, 1, ?, 42001, 'round', 1, 'tls')
+	`, tunnelID, nodeID).Error; err != nil {
+		t.Fatalf("insert chain_tunnel: %v", err)
+	}
+
+	if err := repo.DB().Exec(`
+		INSERT INTO speed_limit(name, speed, tunnel_id, tunnel_name, created_time, updated_time, status)
+		VALUES(?, ?, NULL, NULL, ?, NULL, ?)
+	`, "forward-update-missing-speed-limit", 2048, now, 1).Error; err != nil {
+		t.Fatalf("insert speed limit: %v", err)
+	}
+	speedID := mustLastInsertID(t, repo, "forward-update-missing-speed-limit")
+
+	server := httptest.NewServer(router)
+	defer server.Close()
+	stopNode := startMockNodeSession(t, server.URL, "forward-update-missing-speed-secret")
+	defer stopNode()
+
+	createPayload := map[string]interface{}{
+		"name":       "forward-update-missing-speed-target",
+		"tunnelId":   tunnelID,
+		"remoteAddr": "1.1.1.1:443",
+		"strategy":   "fifo",
+		"speedId":    speedID,
+	}
+	createBody, err := json.Marshal(createPayload)
+	if err != nil {
+		t.Fatalf("marshal create payload: %v", err)
+	}
+	createReq := httptest.NewRequest(http.MethodPost, "/api/v1/forward/create", bytes.NewReader(createBody))
+	createReq.Header.Set("Authorization", adminToken)
+	createReq.Header.Set("Content-Type", "application/json")
+	createRes := httptest.NewRecorder()
+	router.ServeHTTP(createRes, createReq)
+	assertCode(t, createRes, 0)
+
+	forwardID := mustLastInsertID(t, repo, "forward-update-missing-speed-target")
+
+	if err := repo.DB().Exec(`DELETE FROM speed_limit WHERE id = ?`, speedID).Error; err != nil {
+		t.Fatalf("delete speed limit: %v", err)
+	}
+
+	updatePayload := map[string]interface{}{
+		"id":         forwardID,
+		"name":       "forward-update-missing-speed-target-updated",
+		"tunnelId":   tunnelID,
+		"remoteAddr": "1.1.1.1:443",
+		"strategy":   "fifo",
+		"speedId":    speedID,
+	}
+	updateBody, err := json.Marshal(updatePayload)
+	if err != nil {
+		t.Fatalf("marshal update payload: %v", err)
+	}
+	updateReq := httptest.NewRequest(http.MethodPost, "/api/v1/forward/update", bytes.NewReader(updateBody))
+	updateReq.Header.Set("Authorization", adminToken)
+	updateReq.Header.Set("Content-Type", "application/json")
+	updateRes := httptest.NewRecorder()
+	router.ServeHTTP(updateRes, updateReq)
+	assertCode(t, updateRes, 0)
+
+	storedSpeed := repo.DB().Raw(`SELECT speed_id FROM forward WHERE id = ?`, forwardID).Row()
+	var updatedSpeed sql.NullInt64
+	if err := storedSpeed.Scan(&updatedSpeed); err != nil {
+		t.Fatalf("query updated forward speed_id: %v", err)
+	}
+	if updatedSpeed.Valid {
+		t.Fatalf("expected updated speed_id to be NULL after missing speed limit, got %d", updatedSpeed.Int64)
+	}
+}
+
+func TestForwardCreateThenPauseResumeContract(t *testing.T) {
+	secret := "contract-jwt-secret"
+	router, repo := setupContractRouter(t, secret)
+
+	adminToken, err := auth.GenerateToken(1, "admin_user", 0, secret)
+	if err != nil {
+		t.Fatalf("generate admin token: %v", err)
+	}
+
+	now := time.Now().UnixMilli()
+	if err := repo.DB().Exec(`
+		INSERT INTO tunnel(name, traffic_ratio, type, protocol, flow, created_time, updated_time, status, in_ip, inx)
+		VALUES(?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+	`, "forward-toggle-tunnel", 1.0, 1, "tls", 99999, now, now, 1, nil, 0).Error; err != nil {
+		t.Fatalf("insert tunnel: %v", err)
+	}
+	tunnelID := mustLastInsertID(t, repo, "forward-toggle-tunnel")
+
+	if err := repo.DB().Exec(`
+		INSERT INTO node(name, secret, server_ip, server_ip_v4, server_ip_v6, port, interface_name, version, http, tls, socks, created_time, updated_time, status, tcp_listen_addr, udp_listen_addr, inx)
+		VALUES(?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+	`, "forward-toggle-node", "forward-toggle-secret", "10.31.0.1", "10.31.0.1", "", "41000-41010", "", "v1", 1, 1, 1, now, now, 1, "[::]", "[::]", 0).Error; err != nil {
+		t.Fatalf("insert node: %v", err)
+	}
+	nodeID := mustLastInsertID(t, repo, "forward-toggle-node")
+
+	if err := repo.DB().Exec(`
+		INSERT INTO chain_tunnel(tunnel_id, chain_type, node_id, port, strategy, inx, protocol)
+		VALUES(?, 1, ?, 41001, 'round', 1, 'tls')
+	`, tunnelID, nodeID).Error; err != nil {
+		t.Fatalf("insert chain_tunnel: %v", err)
+	}
+
+	server := httptest.NewServer(router)
+	defer server.Close()
+	stopNode := startMockNodeSession(t, server.URL, "forward-toggle-secret")
+	defer stopNode()
+
+	createPayload := map[string]interface{}{
+		"name":       "forward-toggle-target",
+		"tunnelId":   tunnelID,
+		"remoteAddr": "1.1.1.1:443",
+		"strategy":   "fifo",
+	}
+	createBody, err := json.Marshal(createPayload)
+	if err != nil {
+		t.Fatalf("marshal create payload: %v", err)
+	}
+	createReq := httptest.NewRequest(http.MethodPost, "/api/v1/forward/create", bytes.NewReader(createBody))
+	createReq.Header.Set("Authorization", adminToken)
+	createReq.Header.Set("Content-Type", "application/json")
+	createRes := httptest.NewRecorder()
+	router.ServeHTTP(createRes, createReq)
+	assertCode(t, createRes, 0)
+
+	forwardID := mustLastInsertID(t, repo, "forward-toggle-target")
+
+	pauseBody, err := json.Marshal(map[string]interface{}{"id": forwardID})
+	if err != nil {
+		t.Fatalf("marshal pause payload: %v", err)
+	}
+	pauseReq := httptest.NewRequest(http.MethodPost, "/api/v1/forward/pause", bytes.NewReader(pauseBody))
+	pauseReq.Header.Set("Authorization", adminToken)
+	pauseReq.Header.Set("Content-Type", "application/json")
+	pauseRes := httptest.NewRecorder()
+	router.ServeHTTP(pauseRes, pauseReq)
+	assertCode(t, pauseRes, 0)
+
+	pausedStatus := mustQueryInt(t, repo, `SELECT status FROM forward WHERE id = ?`, forwardID)
+	if pausedStatus != 0 {
+		t.Fatalf("expected status=0 after pause, got %d", pausedStatus)
+	}
+
+	resumeBody, err := json.Marshal(map[string]interface{}{"id": forwardID})
+	if err != nil {
+		t.Fatalf("marshal resume payload: %v", err)
+	}
+	resumeReq := httptest.NewRequest(http.MethodPost, "/api/v1/forward/resume", bytes.NewReader(resumeBody))
+	resumeReq.Header.Set("Authorization", adminToken)
+	resumeReq.Header.Set("Content-Type", "application/json")
+	resumeRes := httptest.NewRecorder()
+	router.ServeHTTP(resumeRes, resumeReq)
+	assertCode(t, resumeRes, 0)
+
+	resumedStatus := mustQueryInt(t, repo, `SELECT status FROM forward WHERE id = ?`, forwardID)
+	if resumedStatus != 1 {
+		t.Fatalf("expected status=1 after resume, got %d", resumedStatus)
+	}
+}
+
+func TestForwardUpdateRecoversFromAddressInUseContract(t *testing.T) {
+	secret := "contract-jwt-secret"
+	router, repo := setupContractRouter(t, secret)
+	server := httptest.NewServer(router)
+	defer server.Close()
+
+	adminToken, err := auth.GenerateToken(1, "admin_user", 0, secret)
+	if err != nil {
+		t.Fatalf("generate admin token: %v", err)
+	}
+
+	now := time.Now().UnixMilli()
+	if err := repo.DB().Exec(`
+		INSERT INTO user(id, user, pwd, role_id, exp_time, flow, in_flow, out_flow, flow_reset_time, num, created_time, updated_time, status)
+		VALUES(202, 'forward_bind_retry_user', 'pwd', 1, 2727251700000, 99999, 0, 0, 1, 99999, ?, ?, 1)
+	`, now, now).Error; err != nil {
+		t.Fatalf("insert user: %v", err)
+	}
+
+	if err := repo.DB().Exec(`
+		INSERT INTO tunnel(name, traffic_ratio, type, protocol, flow, created_time, updated_time, status, in_ip, inx)
+		VALUES(?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+	`, "forward-bind-retry-tunnel", 1.0, 1, "tls", 99999, now, now, 1, nil, 0).Error; err != nil {
+		t.Fatalf("insert tunnel: %v", err)
+	}
+	tunnelID := mustLastInsertID(t, repo, "forward-bind-retry-tunnel")
+
+	if err := repo.DB().Exec(`
+		INSERT INTO node(name, secret, server_ip, server_ip_v4, server_ip_v6, port, interface_name, version, http, tls, socks, created_time, updated_time, status, tcp_listen_addr, udp_listen_addr, inx)
+		VALUES(?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+	`, "forward-bind-retry-node", "forward-bind-retry-secret", "10.42.0.1", "10.42.0.1", "", "44000-44010", "", "v1", 1, 1, 1, now, now, 1, "10.42.0.9", "[::]", 0).Error; err != nil {
+		t.Fatalf("insert node: %v", err)
+	}
+	nodeID := mustLastInsertID(t, repo, "forward-bind-retry-node")
+
+	if err := repo.DB().Exec(`
+		INSERT INTO chain_tunnel(tunnel_id, chain_type, node_id, port, strategy, inx, protocol)
+		VALUES(?, 1, ?, 44001, 'round', 1, 'tls')
+	`, tunnelID, nodeID).Error; err != nil {
+		t.Fatalf("insert chain_tunnel: %v", err)
+	}
+
+	if err := repo.DB().Exec(`
+		INSERT INTO user_tunnel(id, user_id, tunnel_id, speed_id, num, flow, in_flow, out_flow, flow_reset_time, exp_time, status)
+		VALUES(41, 202, ?, NULL, 999, 99999, 0, 0, 1, 2727251700000, 1)
+	`, tunnelID).Error; err != nil {
+		t.Fatalf("insert user_tunnel: %v", err)
+	}
+
+	createPayload := map[string]interface{}{
+		"name":       "forward-bind-retry-target",
+		"tunnelId":   tunnelID,
+		"remoteAddr": "1.1.1.1:443",
+		"strategy":   "fifo",
+	}
+	createBody, err := json.Marshal(createPayload)
+	if err != nil {
+		t.Fatalf("marshal create payload: %v", err)
+	}
+
+	var mu sync.Mutex
+	counts := map[string]int{}
+	var addServiceAddrs []string
+	triggerConflict := false
+	stopNode := startMockNodeSessionWithCommandRecorder(t, server.URL, "forward-bind-retry-secret", func(cmdType string, data json.RawMessage) (bool, string) {
+		key := strings.ToLower(strings.TrimSpace(cmdType))
+		mu.Lock()
+		counts[key]++
+		attempt := counts[key]
+		if strings.EqualFold(strings.TrimSpace(cmdType), "AddService") || strings.EqualFold(strings.TrimSpace(cmdType), "UpdateService") {
+			var services []map[string]interface{}
+			if err := json.Unmarshal(data, &services); err == nil {
+				for _, svc := range services {
+					if addr, _ := svc["addr"].(string); strings.TrimSpace(addr) != "" {
+						addServiceAddrs = append(addServiceAddrs, addr)
+					}
+				}
+			}
+		}
+		shouldFail := false
+		if triggerConflict {
+			if strings.EqualFold(strings.TrimSpace(cmdType), "UpdateService") && attempt == 1 {
+				shouldFail = true
+			}
+			if strings.EqualFold(strings.TrimSpace(cmdType), "AddService") && attempt == 1 {
+				shouldFail = true
+			}
+		}
+		mu.Unlock()
+		if shouldFail {
+			return true, "create service 57_7_7_tcp failed: listen tcp4 0.0.0.0:46222: bind: address alreadyin use"
+		}
+		return false, ""
+	})
+	defer stopNode()
+	waitNodeStatus(t, repo, nodeID, 1)
+
+	createReq := httptest.NewRequest(http.MethodPost, "/api/v1/forward/create", bytes.NewReader(createBody))
+	createReq.Header.Set("Authorization", adminToken)
+	createReq.Header.Set("Content-Type", "application/json")
+	createRes := httptest.NewRecorder()
+	router.ServeHTTP(createRes, createReq)
+	assertCode(t, createRes, 0)
+	mu.Lock()
+	counts = map[string]int{}
+	addServiceAddrs = nil
+	triggerConflict = true
+	mu.Unlock()
+
+	forwardID := mustLastInsertID(t, repo, "forward-bind-retry-target")
+
+	updatePayload := map[string]interface{}{
+		"id":         forwardID,
+		"name":       "forward-bind-retry-target-updated",
+		"tunnelId":   tunnelID,
+		"remoteAddr": "9.9.9.9:8443",
+		"strategy":   "fifo",
+	}
+	updateBody, err := json.Marshal(updatePayload)
+	if err != nil {
+		t.Fatalf("marshal update payload: %v", err)
+	}
+	updateReq := httptest.NewRequest(http.MethodPost, "/api/v1/forward/update", bytes.NewReader(updateBody))
+	updateReq.Header.Set("Authorization", adminToken)
+	updateReq.Header.Set("Content-Type", "application/json")
+	updateRes := httptest.NewRecorder()
+	router.ServeHTTP(updateRes, updateReq)
+	assertCode(t, updateRes, 0)
+
+	mu.Lock()
+	defer mu.Unlock()
+	boundPort := mustQueryInt(t, repo, `SELECT port FROM forward_port WHERE forward_id = ? LIMIT 1`, forwardID)
+	if counts["updateservice"] != 1 {
+		t.Fatalf("expected one UpdateService attempt, got %d (%v)", counts["updateservice"], counts)
+	}
+	if counts["deleteservice"] == 0 {
+		t.Fatalf("expected DeleteService cleanup after address-in-use (%v)", counts)
+	}
+	if counts["addservice"] < 2 {
+		t.Fatalf("expected AddService retry path to run at least twice total, got %d (%v)", counts["addservice"], counts)
+	}
+	foundBindAddr := false
+	for _, addr := range addServiceAddrs {
+		if addr == "10.42.0.9:"+strconv.Itoa(boundPort) {
+			foundBindAddr = true
+			break
+		}
+	}
+	if !foundBindAddr {
+		t.Fatalf("expected forward runtime to keep node listen addr 10.42.0.9:%d, got %v", boundPort, addServiceAddrs)
+	}
+
+	storedRemoteAddr := mustQueryString(t, repo, `SELECT remote_addr FROM forward WHERE id = ?`, forwardID)
+	if storedRemoteAddr != "9.9.9.9:8443" {
+		t.Fatalf("expected remote_addr update to persist, got %q", storedRemoteAddr)
+	}
+}
+
 func jsonNumber(v int64) string {
 	return strconv.FormatInt(v, 10)
 }
+
+func TestNonAdminCannotSetSpeedIdOrPort(t *testing.T) {
+	secret := "contract-jwt-secret-perm"
+	router, repo := setupContractRouter(t, secret)
+	server := httptest.NewServer(router)
+	defer server.Close()
+	now := time.Now().UnixMilli()
+
+	if err := repo.DB().Exec(`
+		INSERT INTO user(id, user, pwd, role_id, exp_time, flow, in_flow, out_flow, flow_reset_time, num, created_time, updated_time, status)
+		VALUES(2, 'normal_user_perm', '3c85cdebade1c51cf64ca9f3c09d182d', 1, 2727251700000, 99999, 0, 0, 1, 99999, ?, ?, 1)
+	`, now, now).Error; err != nil {
+		t.Fatalf("insert user: %v", err)
+	}
+
+	if err := repo.DB().Exec(`
+		INSERT INTO tunnel(name, traffic_ratio, type, protocol, flow, created_time, updated_time, status, in_ip, inx)
+		VALUES(?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+	`, "perm-tunnel", 1.0, 1, "tls", 99999, now, now, 1, nil, 0).Error; err != nil {
+		t.Fatalf("insert tunnel: %v", err)
+	}
+	tunnelID := mustLastInsertID(t, repo, "perm-tunnel")
+
+	if err := repo.DB().Exec(`
+		INSERT INTO node(name, secret, server_ip, server_ip_v4, server_ip_v6, port, interface_name, version, http, tls, socks, created_time, updated_time, status, tcp_listen_addr, udp_listen_addr, inx)
+		VALUES(?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+	`, "perm-node", "perm-secret", "10.0.0.20", "10.0.0.20", "", "30000-30010", "", "v1", 1, 1, 1, now, now, 1, "[::]", "[::]", 0).Error; err != nil {
+		t.Fatalf("insert node: %v", err)
+	}
+	entryNodeID := mustLastInsertID(t, repo, "perm-node")
+
+	if err := repo.DB().Exec(`
+		INSERT INTO chain_tunnel(tunnel_id, chain_type, node_id, port, strategy, inx, protocol)
+		VALUES(?, 1, ?, 30001, 'round', 1, 'tls')
+	`, tunnelID, entryNodeID).Error; err != nil {
+		t.Fatalf("insert chain_tunnel: %v", err)
+	}
+
+	if err := repo.DB().Exec(`
+		INSERT INTO user_tunnel(user_id, tunnel_id, speed_id, num, flow, in_flow, out_flow, flow_reset_time, exp_time, status)
+		VALUES(?, ?, NULL, 10, 99999, 0, 0, 1, 2727251700000, 1)
+	`, 2, tunnelID).Error; err != nil {
+		t.Fatalf("insert user_tunnel: %v", err)
+	}
+
+	if err := repo.DB().Exec(`
+		INSERT INTO speed_limit(name, speed, tunnel_id, tunnel_name, created_time, updated_time, status)
+		VALUES(?, ?, ?, ?, ?, ?, 1)
+	`, "perm-speed-limit", 2048, tunnelID, "perm-tunnel", now, now).Error; err != nil {
+		t.Fatalf("insert speed limit: %v", err)
+	}
+	speedID := mustLastInsertID(t, repo, "perm-speed-limit")
+
+	userToken, err := auth.GenerateToken(2, "normal_user_perm", 1, secret)
+	if err != nil {
+		t.Fatalf("generate user token: %v", err)
+	}
+
+	stopNode := startMockNodeSession(t, server.URL, "perm-secret")
+	defer stopNode()
+
+	t.Run("non-admin cannot set speedId on create", func(t *testing.T) {
+		createPayload := map[string]interface{}{
+			"name":       "perm-forward-speed",
+			"tunnelId":   tunnelID,
+			"remoteAddr": "1.2.3.4:443",
+			"strategy":   "fifo",
+			"speedId":    speedID,
+		}
+		createBody, err := json.Marshal(createPayload)
+		if err != nil {
+			t.Fatalf("marshal create payload: %v", err)
+		}
+		req := httptest.NewRequest(http.MethodPost, "/api/v1/forward/create", bytes.NewReader(createBody))
+		req.Header.Set("Authorization", userToken)
+		req.Header.Set("Content-Type", "application/json")
+		res := httptest.NewRecorder()
+		router.ServeHTTP(res, req)
+		assertCodeMsg(t, res, -1, "普通用户无法设置限速规则")
+	})
+
+	t.Run("non-admin cannot set inPort out of range on create", func(t *testing.T) {
+		createPayload := map[string]interface{}{
+			"name":       "perm-forward-port-out",
+			"tunnelId":   tunnelID,
+			"remoteAddr": "1.2.3.4:443",
+			"strategy":   "fifo",
+			"inPort":     12345,
+		}
+		createBody, err := json.Marshal(createPayload)
+		if err != nil {
+			t.Fatalf("marshal create payload: %v", err)
+		}
+		req := httptest.NewRequest(http.MethodPost, "/api/v1/forward/create", bytes.NewReader(createBody))
+		req.Header.Set("Authorization", userToken)
+		req.Header.Set("Content-Type", "application/json")
+		res := httptest.NewRecorder()
+		router.ServeHTTP(res, req)
+		var out response.R
+		if err := json.NewDecoder(res.Body).Decode(&out); err != nil {
+			t.Fatalf("decode response: %v", err)
+		}
+		if out.Code >= 0 {
+			t.Errorf("expected port out of range error, got code=%d msg=%s", out.Code, out.Msg)
+		}
+	})
+
+	t.Run("non-admin can set inPort within range on create", func(t *testing.T) {
+		createPayload := map[string]interface{}{
+			"name":       "perm-forward-port-in",
+			"tunnelId":   tunnelID,
+			"remoteAddr": "1.2.3.4:443",
+			"strategy":   "fifo",
+			"inPort":     30005,
+		}
+		createBody, err := json.Marshal(createPayload)
+		if err != nil {
+			t.Fatalf("marshal create payload: %v", err)
+		}
+		req := httptest.NewRequest(http.MethodPost, "/api/v1/forward/create", bytes.NewReader(createBody))
+		req.Header.Set("Authorization", userToken)
+		req.Header.Set("Content-Type", "application/json")
+		res := httptest.NewRecorder()
+		router.ServeHTTP(res, req)
+		assertCode(t, res, 0)
+	})
+
+	t.Run("non-admin can create without speedId and inPort", func(t *testing.T) {
+		createPayload := map[string]interface{}{
+			"name":       "perm-forward-ok",
+			"tunnelId":   tunnelID,
+			"remoteAddr": "1.2.3.4:443",
+			"strategy":   "fifo",
+		}
+		createBody, err := json.Marshal(createPayload)
+		if err != nil {
+			t.Fatalf("marshal create payload: %v", err)
+		}
+		req := httptest.NewRequest(http.MethodPost, "/api/v1/forward/create", bytes.NewReader(createBody))
+		req.Header.Set("Authorization", userToken)
+		req.Header.Set("Content-Type", "application/json")
+		res := httptest.NewRecorder()
+		router.ServeHTTP(res, req)
+		assertCode(t, res, 0)
+	})
+
+	forwardID := mustLastInsertID(t, repo, "perm-forward-ok")
+
+	t.Run("non-admin cannot update speedId", func(t *testing.T) {
+		updatePayload := map[string]interface{}{
+			"id":         forwardID,
+			"name":       "perm-forward-updated",
+			"tunnelId":   tunnelID,
+			"remoteAddr": "5.6.7.8:443",
+			"speedId":    speedID,
+		}
+		updateBody, err := json.Marshal(updatePayload)
+		if err != nil {
+			t.Fatalf("marshal update payload: %v", err)
+		}
+		req := httptest.NewRequest(http.MethodPost, "/api/v1/forward/update", bytes.NewReader(updateBody))
+		req.Header.Set("Authorization", userToken)
+		req.Header.Set("Content-Type", "application/json")
+		res := httptest.NewRecorder()
+		router.ServeHTTP(res, req)
+		assertCodeMsg(t, res, -1, "普通用户无法修改限速规则")
+	})
+
+	t.Run("non-admin cannot update inPort out of range", func(t *testing.T) {
+		updatePayload := map[string]interface{}{
+			"id":         forwardID,
+			"name":       "perm-forward-updated2",
+			"tunnelId":   tunnelID,
+			"remoteAddr": "5.6.7.8:443",
+			"inPort":     54321,
+		}
+		updateBody, err := json.Marshal(updatePayload)
+		if err != nil {
+			t.Fatalf("marshal update payload: %v", err)
+		}
+		req := httptest.NewRequest(http.MethodPost, "/api/v1/forward/update", bytes.NewReader(updateBody))
+		req.Header.Set("Authorization", userToken)
+		req.Header.Set("Content-Type", "application/json")
+		res := httptest.NewRecorder()
+		router.ServeHTTP(res, req)
+		var out response.R
+		if err := json.NewDecoder(res.Body).Decode(&out); err != nil {
+			t.Fatalf("decode response: %v", err)
+		}
+		if out.Code >= 0 {
+			t.Errorf("expected port out of range error, got code=%d msg=%s", out.Code, out.Msg)
+		}
+	})
+
+	t.Run("non-admin can update inPort within range", func(t *testing.T) {
+		updatePayload := map[string]interface{}{
+			"id":         forwardID,
+			"name":       "perm-forward-updated3",
+			"tunnelId":   tunnelID,
+			"remoteAddr": "5.6.7.8:443",
+			"inPort":     30006,
+		}
+		updateBody, err := json.Marshal(updatePayload)
+		if err != nil {
+			t.Fatalf("marshal update payload: %v", err)
+		}
+		req := httptest.NewRequest(http.MethodPost, "/api/v1/forward/update", bytes.NewReader(updateBody))
+		req.Header.Set("Authorization", userToken)
+		req.Header.Set("Content-Type", "application/json")
+		res := httptest.NewRecorder()
+		router.ServeHTTP(res, req)
+		assertCode(t, res, 0)
+	})
+
+	t.Run("non-admin can update without speedId and inPort", func(t *testing.T) {
+		updatePayload := map[string]interface{}{
+			"id":         forwardID,
+			"name":       "perm-forward-updated-ok",
+			"tunnelId":   tunnelID,
+			"remoteAddr": "9.10.11.12:443",
+		}
+		updateBody, err := json.Marshal(updatePayload)
+		if err != nil {
+			t.Fatalf("marshal update payload: %v", err)
+		}
+		req := httptest.NewRequest(http.MethodPost, "/api/v1/forward/update", bytes.NewReader(updateBody))
+		req.Header.Set("Authorization", userToken)
+		req.Header.Set("Content-Type", "application/json")
+		res := httptest.NewRecorder()
+		router.ServeHTTP(res, req)
+		assertCode(t, res, 0)
+	})
+
+	t.Run("non-admin can update when request keeps existing speedId", func(t *testing.T) {
+		if err := repo.DB().Exec(`UPDATE forward SET speed_id = ? WHERE id = ?`, speedID, forwardID).Error; err != nil {
+			t.Fatalf("assign forward speed limit: %v", err)
+		}
+
+		updatePayload := map[string]interface{}{
+			"id":         forwardID,
+			"name":       "perm-forward-keep-speed",
+			"tunnelId":   tunnelID,
+			"remoteAddr": "9.10.11.12:443",
+			"speedId":    speedID,
+		}
+		updateBody, err := json.Marshal(updatePayload)
+		if err != nil {
+			t.Fatalf("marshal update payload: %v", err)
+		}
+		req := httptest.NewRequest(http.MethodPost, "/api/v1/forward/update", bytes.NewReader(updateBody))
+		req.Header.Set("Authorization", userToken)
+		req.Header.Set("Content-Type", "application/json")
+		res := httptest.NewRecorder()
+		router.ServeHTTP(res, req)
+		assertCode(t, res, 0)
+	})
+
+	t.Run("non-admin can create with speedId null and inPort 0", func(t *testing.T) {
+		createPayload := map[string]interface{}{
+			"name":       "perm-forward-null-values",
+			"tunnelId":   tunnelID,
+			"remoteAddr": "1.2.3.4:443",
+			"strategy":   "fifo",
+			"speedId":    nil,
+			"inPort":     0,
+		}
+		createBody, err := json.Marshal(createPayload)
+		if err != nil {
+			t.Fatalf("marshal create payload: %v", err)
+		}
+		req := httptest.NewRequest(http.MethodPost, "/api/v1/forward/create", bytes.NewReader(createBody))
+		req.Header.Set("Authorization", userToken)
+		req.Header.Set("Content-Type", "application/json")
+		res := httptest.NewRecorder()
+		router.ServeHTTP(res, req)
+		assertCode(t, res, 0)
+	})
+
+	t.Run("non-admin can update with speedId null", func(t *testing.T) {
+		updatePayload := map[string]interface{}{
+			"id":         forwardID,
+			"name":       "perm-forward-null-speed",
+			"tunnelId":   tunnelID,
+			"remoteAddr": "9.10.11.12:443",
+			"speedId":    nil,
+		}
+		updateBody, err := json.Marshal(updatePayload)
+		if err != nil {
+			t.Fatalf("marshal update payload: %v", err)
+		}
+		req := httptest.NewRequest(http.MethodPost, "/api/v1/forward/update", bytes.NewReader(updateBody))
+		req.Header.Set("Authorization", userToken)
+		req.Header.Set("Content-Type", "application/json")
+		res := httptest.NewRecorder()
+		router.ServeHTTP(res, req)
+		assertCode(t, res, 0)
+	})
+}
@@ -0,0 +1,187 @@
+package contract_test
+
+import (
+	"bytes"
+	"encoding/json"
+	"net/http"
+	"net/http/httptest"
+	"testing"
+	"time"
+
+	"go-backend/internal/auth"
+	"go-backend/internal/http/response"
+)
+
+func TestIssue313_EntryPortCrossTunnelConflictContract(t *testing.T) {
+	secret := "contract-jwt-secret"
+	router, repo := setupContractRouter(t, secret)
+	now := time.Now().UnixMilli()
+
+	adminToken, err := auth.GenerateToken(1, "admin_user", 0, secret)
+	if err != nil {
+		t.Fatalf("generate admin token: %v", err)
+	}
+
+	insertNode := func(name, ip, portRange string) int64 {
+		if err := repo.DB().Exec(`
+			INSERT INTO node(name, secret, server_ip, server_ip_v4, server_ip_v6, port, interface_name, version, http, tls, socks, created_time, updated_time, status, tcp_listen_addr, udp_listen_addr, inx)
+			VALUES(?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+		`, name, name+"-secret", ip, ip, "", portRange, "", "v1", 1, 1, 1, now, now, 1, "[::]", "[::]", 0).Error; err != nil {
+			t.Fatalf("insert node %s: %v", name, err)
+		}
+		return mustLastInsertID(t, repo, name)
+	}
+
+	entryA := insertNode("issue313-entry-a", "10.100.0.1", "2000-2010")
+	entryB1 := insertNode("issue313-entry-b1", "10.100.0.2", "2000-2010")
+	entryB2 := insertNode("issue313-entry-b2", "10.100.0.3", "2000-2010")
+	chainA := insertNode("issue313-chain-a", "10.100.0.4", "3000-3010")
+	chainB := insertNode("issue313-chain-b", "10.100.0.5", "3000-3010")
+	exitA := insertNode("issue313-exit-a", "10.100.0.6", "4000-4010")
+	exitB := insertNode("issue313-exit-b", "10.100.0.7", "4000-4010")
+
+	if err := repo.DB().Exec(`
+		INSERT INTO tunnel(name, traffic_ratio, type, protocol, flow, created_time, updated_time, status, in_ip, inx)
+		VALUES(?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+	`, "issue313-tunnel-a", 1.0, 2, "tls", 99999, now, now, 1, nil, 0).Error; err != nil {
+		t.Fatalf("insert tunnel a: %v", err)
+	}
+	tunnelAID := mustLastInsertID(t, repo, "issue313-tunnel-a")
+
+	if err := repo.DB().Exec(`
+		INSERT INTO chain_tunnel(tunnel_id, chain_type, node_id, port, strategy, inx, protocol)
+		VALUES(?, 1, ?, 2000, 'round', 1, 'tls')
+	`, tunnelAID, entryA).Error; err != nil {
+		t.Fatalf("insert chain_tunnel entry a: %v", err)
+	}
+	if err := repo.DB().Exec(`
+		INSERT INTO chain_tunnel(tunnel_id, chain_type, node_id, port, strategy, inx, protocol)
+		VALUES(?, 2, ?, 3000, 'round', 1, 'tls')
+	`, tunnelAID, chainA).Error; err != nil {
+		t.Fatalf("insert chain_tunnel chain a: %v", err)
+	}
+	if err := repo.DB().Exec(`
+		INSERT INTO chain_tunnel(tunnel_id, chain_type, node_id, port, strategy, inx, protocol)
+		VALUES(?, 3, ?, 4000, 'round', 1, 'tls')
+	`, tunnelAID, exitA).Error; err != nil {
+		t.Fatalf("insert chain_tunnel exit a: %v", err)
+	}
+
+	if err := repo.DB().Exec(`
+		INSERT INTO tunnel(name, traffic_ratio, type, protocol, flow, created_time, updated_time, status, in_ip, inx)
+		VALUES(?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+	`, "issue313-tunnel-b", 1.0, 2, "tls", 99999, now, now, 1, nil, 0).Error; err != nil {
+		t.Fatalf("insert tunnel b: %v", err)
+	}
+	tunnelBID := mustLastInsertID(t, repo, "issue313-tunnel-b")
+
+	if err := repo.DB().Exec(`
+		INSERT INTO chain_tunnel(tunnel_id, chain_type, node_id, port, strategy, inx, protocol)
+		VALUES(?, 1, ?, 2000, 'round', 1, 'tls')
+	`, tunnelBID, entryB1).Error; err != nil {
+		t.Fatalf("insert chain_tunnel entry b1: %v", err)
+	}
+	if err := repo.DB().Exec(`
+		INSERT INTO chain_tunnel(tunnel_id, chain_type, node_id, port, strategy, inx, protocol)
+		VALUES(?, 2, ?, 3000, 'round', 1, 'tls')
+	`, tunnelBID, chainB).Error; err != nil {
+		t.Fatalf("insert chain_tunnel chain b: %v", err)
+	}
+	if err := repo.DB().Exec(`
+		INSERT INTO chain_tunnel(tunnel_id, chain_type, node_id, port, strategy, inx, protocol)
+		VALUES(?, 3, ?, 4000, 'round', 1, 'tls')
+	`, tunnelBID, exitB).Error; err != nil {
+		t.Fatalf("insert chain_tunnel exit b: %v", err)
+	}
+
+	if err := repo.DB().Exec(`
+		INSERT INTO user_tunnel(id, user_id, tunnel_id, speed_id, num, flow, in_flow, out_flow, flow_reset_time, exp_time, status)
+		VALUES(3131, 1, ?, NULL, 999, 99999, 0, 0, 1, 2727251700000, 1)
+	`, tunnelAID).Error; err != nil {
+		t.Fatalf("insert user_tunnel for tunnel a: %v", err)
+	}
+
+	if err := repo.DB().Exec(`
+		INSERT INTO forward(user_id, user_name, name, tunnel_id, remote_addr, strategy, in_flow, out_flow, created_time, updated_time, status, inx)
+		VALUES(1, 'admin_user', 'issue313-forward-a', ?, '1.1.1.1:443', 'fifo', 0, 0, ?, ?, 1, 0)
+	`, tunnelAID, now, now).Error; err != nil {
+		t.Fatalf("insert forward a: %v", err)
+	}
+	forwardAID := mustLastInsertID(t, repo, "issue313-forward-a")
+
+	if err := repo.DB().Exec(`INSERT INTO forward_port(forward_id, node_id, port) VALUES(?, ?, ?)`, forwardAID, entryA, 2000).Error; err != nil {
+		t.Fatalf("insert forward_port a: %v", err)
+	}
+
+	if err := repo.DB().Exec(`
+		INSERT INTO user_tunnel(id, user_id, tunnel_id, speed_id, num, flow, in_flow, out_flow, flow_reset_time, exp_time, status)
+		VALUES(3132, 1, ?, NULL, 999, 99999, 0, 0, 1, 2727251700000, 1)
+	`, tunnelBID).Error; err != nil {
+		t.Fatalf("insert user_tunnel for tunnel b: %v", err)
+	}
+
+	if err := repo.DB().Exec(`
+		INSERT INTO forward(user_id, user_name, name, tunnel_id, remote_addr, strategy, in_flow, out_flow, created_time, updated_time, status, inx)
+		VALUES(1, 'admin_user', 'issue313-forward-b', ?, '2.2.2.2:443', 'fifo', 0, 0, ?, ?, 1, 0)
+	`, tunnelBID, now, now).Error; err != nil {
+		t.Fatalf("insert forward b: %v", err)
+	}
+	forwardBID := mustLastInsertID(t, repo, "issue313-forward-b")
+
+	if err := repo.DB().Exec(`INSERT INTO forward_port(forward_id, node_id, port) VALUES(?, ?, ?)`, forwardBID, entryB1, 2000).Error; err != nil {
+		t.Fatalf("insert forward_port b: %v", err)
+	}
+
+	payload := map[string]interface{}{
+		"id":           tunnelBID,
+		"name":         "issue313-tunnel-b",
+		"type":         2,
+		"flow":         99999,
+		"trafficRatio": 1.0,
+		"status":       1,
+		"inNodeId": []map[string]interface{}{
+			{"nodeId": entryB1, "protocol": "tls", "strategy": "round"},
+			{"nodeId": entryB2, "protocol": "tls", "strategy": "round"},
+		},
+		"chainNodes": []interface{}{
+			[]map[string]interface{}{{"nodeId": chainB, "protocol": "tls", "strategy": "round"}},
+		},
+		"outNodeId": []map[string]interface{}{
+			{"nodeId": exitB, "protocol": "tls", "strategy": "round"},
+		},
+	}
+	body, err := json.Marshal(payload)
+	if err != nil {
+		t.Fatalf("marshal payload: %v", err)
+	}
+
+	req := httptest.NewRequest(http.MethodPost, "/api/v1/tunnel/update", bytes.NewReader(body))
+	req.Header.Set("Authorization", adminToken)
+	req.Header.Set("Content-Type", "application/json")
+	res := httptest.NewRecorder()
+
+	router.ServeHTTP(res, req)
+
+	var out response.R
+	if err := json.NewDecoder(res.Body).Decode(&out); err != nil {
+		t.Fatalf("decode response: %v", err)
+	}
+
+	if out.Code == 0 {
+		t.Fatalf("expected update failure due to cross-tunnel port conflict, got success with code 0")
+	}
+
+	if !bytes.Contains(res.Body.Bytes(), []byte("端口")) && !bytes.Contains(res.Body.Bytes(), []byte("占用")) {
+		t.Fatalf("expected port conflict error message, got %q", out.Msg)
+	}
+
+	countB2 := mustQueryInt(t, repo, `SELECT COUNT(1) FROM forward_port WHERE forward_id = ? AND node_id = ?`, forwardBID, entryB2)
+	if countB2 > 0 {
+		t.Fatalf("expected no forward_port record for entryB2, but found %d", countB2)
+	}
+
+	chainCountB2 := mustQueryInt(t, repo, `SELECT COUNT(1) FROM chain_tunnel WHERE tunnel_id = ? AND node_id = ?`, tunnelBID, entryB2)
+	if chainCountB2 > 0 {
+		t.Fatalf("expected no chain_tunnel record for entryB2, but found %d", chainCountB2)
+	}
+}
@@ -25,6 +25,7 @@ import (
 func TestCaptchaVerifyLoginContract(t *testing.T) {
 	secret := "contract-jwt-secret"
 	router, r := setupContractRouter(t, secret)
+	verifiedToken := ""

 	if err := r.DB().Exec(`
 		INSERT INTO vite_config(name, value, time)
@@ -34,7 +35,7 @@ func TestCaptchaVerifyLoginContract(t *testing.T) {
 		t.Fatalf("enable captcha: %v", err)
 	}

-	t.Run("login denied without verified captcha token", func(t *testing.T) {
+	t.Run("login allowed when cloudflare keys are missing", func(t *testing.T) {
 		body := bytes.NewBufferString(`{"username":"admin_user","password":"admin_user","captchaId":""}`)
 		req := httptest.NewRequest(http.MethodPost, "/api/v1/user/login", body)
 		req.Header.Set("Content-Type", "application/json")
@@ -42,10 +43,10 @@ func TestCaptchaVerifyLoginContract(t *testing.T) {

 		router.ServeHTTP(resp, req)

-		assertCodeMsg(t, resp, -1, "验证码校验失败")
+		assertCode(t, resp, 0)
 	})

-	t.Run("captcha token is one-time and consumed by login", func(t *testing.T) {
+	t.Run("captcha verify remains compatible without cloudflare secret", func(t *testing.T) {
 		verifyReq := httptest.NewRequest(http.MethodPost, "/api/v1/captcha/verify", bytes.NewBufferString(`{"id":"captcha-token-1","data":"ok"}`))
 		verifyReq.Header.Set("Content-Type", "application/json")
 		verifyResp := httptest.NewRecorder()
@@ -65,14 +66,60 @@ func TestCaptchaVerifyLoginContract(t *testing.T) {
 			t.Fatalf("unexpected captcha verify payload: success=%v token=%q", verifyOut.Success, verifyOut.Data.ValidToken)
 		}

-		loginBody := bytes.NewBufferString(`{"username":"admin_user","password":"admin_user","captchaId":"captcha-token-1"}`)
+		verifiedToken = verifyOut.Data.ValidToken
+	})
+
+	if err := r.DB().Exec(`
+		INSERT INTO vite_config(name, value, time)
+		VALUES(?, ?, ?)
+		ON CONFLICT(name) DO UPDATE SET value = excluded.value, time = excluded.time
+	`, "cloudflare_site_key", "test-site-key", time.Now().UnixMilli()).Error; err != nil {
+		t.Fatalf("set cloudflare site key: %v", err)
+	}
+	if err := r.DB().Exec(`
+		INSERT INTO vite_config(name, value, time)
+		VALUES(?, ?, ?)
+		ON CONFLICT(name) DO UPDATE SET value = excluded.value, time = excluded.time
+	`, "cloudflare_secret_key", "test-secret-key", time.Now().UnixMilli()).Error; err != nil {
+		t.Fatalf("set cloudflare secret key: %v", err)
+	}
+
+	t.Run("login denied without verified captcha token", func(t *testing.T) {
+		body := bytes.NewBufferString(`{"username":"admin_user","password":"admin_user","captchaId":""}`)
+		req := httptest.NewRequest(http.MethodPost, "/api/v1/user/login", body)
+		req.Header.Set("Content-Type", "application/json")
+		resp := httptest.NewRecorder()
+
+		router.ServeHTTP(resp, req)
+
+		assertCodeMsg(t, resp, -1, "验证码校验失败")
+	})
+
+	t.Run("whmcs api client bypasses captcha", func(t *testing.T) {
+		body := bytes.NewBufferString(`{"username":"admin_user","password":"admin_user","captchaId":""}`)
+		req := httptest.NewRequest(http.MethodPost, "/api/v1/user/login", body)
+		req.Header.Set("Content-Type", "application/json")
+		req.Header.Set("X-FLVX-API-Client", "whmcs")
+		resp := httptest.NewRecorder()
+
+		router.ServeHTTP(resp, req)
+
+		assertCode(t, resp, 0)
+	})
+
+	t.Run("captcha token is one-time and consumed by login", func(t *testing.T) {
+		if strings.TrimSpace(verifiedToken) == "" {
+			t.Fatalf("expected verified token from compatibility captcha verify")
+		}
+
+		loginBody := bytes.NewBufferString(`{"username":"admin_user","password":"admin_user","captchaId":"` + verifiedToken + `"}`)
 		loginReq := httptest.NewRequest(http.MethodPost, "/api/v1/user/login", loginBody)
 		loginReq.Header.Set("Content-Type", "application/json")
 		loginResp := httptest.NewRecorder()
 		router.ServeHTTP(loginResp, loginReq)
 		assertCode(t, loginResp, 0)

-		replayBody := bytes.NewBufferString(`{"username":"admin_user","password":"admin_user","captchaId":"captcha-token-1"}`)
+		replayBody := bytes.NewBufferString(`{"username":"admin_user","password":"admin_user","captchaId":"` + verifiedToken + `"}`)
 		replayReq := httptest.NewRequest(http.MethodPost, "/api/v1/user/login", replayBody)
 		replayReq.Header.Set("Content-Type", "application/json")
 		replayResp := httptest.NewRecorder()
@@ -162,39 +209,24 @@ func TestOpenAPISubStoreContracts(t *testing.T) {
 	})
 }

-func TestSpeedLimitTunnelsRouteAlias(t *testing.T) {
+func TestSpeedLimitTunnelsRouteRemoved(t *testing.T) {
 	secret := "contract-jwt-secret"
 	router, _ := setupContractRouter(t, secret)

-	t.Run("missing token blocked", func(t *testing.T) {
-		req := httptest.NewRequest(http.MethodPost, "/api/v1/speed-limit/tunnels", nil)
-		resp := httptest.NewRecorder()
+	token, err := auth.GenerateToken(1, "admin_user", 0, secret)
+	if err != nil {
+		t.Fatalf("generate token: %v", err)
+	}

-		router.ServeHTTP(resp, req)
+	req := httptest.NewRequest(http.MethodPost, "/api/v1/speed-limit/tunnels", nil)
+	req.Header.Set("Authorization", token)
+	resp := httptest.NewRecorder()

-		assertCodeMsg(t, resp, 401, "未登录或token已过期")
-	})
+	router.ServeHTTP(resp, req)

-	t.Run("admin token receives success envelope", func(t *testing.T) {
-		token, err := auth.GenerateToken(1, "admin_user", 0, secret)
-		if err != nil {
-			t.Fatalf("generate token: %v", err)
-		}
-
-		req := httptest.NewRequest(http.MethodPost, "/api/v1/speed-limit/tunnels", nil)
-		req.Header.Set("Authorization", token)
-		resp := httptest.NewRecorder()
-
-		router.ServeHTTP(resp, req)
-
-		var out response.R
-		if err := json.NewDecoder(resp.Body).Decode(&out); err != nil {
-			t.Fatalf("decode response: %v", err)
-		}
-		if out.Code != 0 {
-			t.Fatalf("expected code 0, got %d (%s)", out.Code, out.Msg)
-		}
-	})
+	if resp.Code != http.StatusNotFound {
+		t.Fatalf("expected status 404 after route removal, got %d", resp.Code)
+	}
 }

 func TestBackupExportImportRestoreContracts(t *testing.T) {
@@ -652,15 +684,107 @@ func TestOpenMigratesLegacyNodeDualStackColumns(t *testing.T) {

 	columns := readTableColumns(t, r.DB(), "node")

-	for _, required := range []string{"server_ip_v4", "server_ip_v6", "inx"} {
+	for _, required := range []string{"server_ip_v4", "server_ip_v6", "inx", "extra_ips"} {
 		if !columns[required] {
 			t.Fatalf("expected node column %q to exist after migration", required)
 		}
 	}

 	tunnelColumns := readTableColumns(t, r.DB(), "tunnel")
-	if !tunnelColumns["inx"] {
-		t.Fatalf("expected tunnel column %q to exist after migration", "inx")
+	for _, required := range []string{"inx", "ip_preference"} {
+		if !tunnelColumns[required] {
+			t.Fatalf("expected tunnel column %q to exist after migration", required)
+		}
+	}
+}
+
+func TestOpenMigratesVeryLegacyNodeAndTunnelColumns(t *testing.T) {
+	dbPath := filepath.Join(t.TempDir(), "legacy-1.x.db")
+	legacyDB, err := sql.Open("sqlite", dbPath)
+	if err != nil {
+		t.Fatalf("open legacy sqlite: %v", err)
+	}
+
+	t.Cleanup(func() {
+		_ = legacyDB.Close()
+	})
+
+	if _, err := legacyDB.Exec(`
+		CREATE TABLE IF NOT EXISTS node (
+			id INTEGER PRIMARY KEY AUTOINCREMENT,
+			name VARCHAR(100) NOT NULL,
+			secret VARCHAR(100) NOT NULL,
+			server_ip VARCHAR(100) NOT NULL,
+			port TEXT NOT NULL,
+			interface_name VARCHAR(200),
+			version VARCHAR(100),
+			http INTEGER NOT NULL DEFAULT 0,
+			tls INTEGER NOT NULL DEFAULT 0,
+			socks INTEGER NOT NULL DEFAULT 0,
+			created_time INTEGER NOT NULL,
+			updated_time INTEGER,
+			status INTEGER NOT NULL
+		)
+	`); err != nil {
+		t.Fatalf("create very legacy node table: %v", err)
+	}
+
+	if _, err := legacyDB.Exec(`
+		CREATE TABLE IF NOT EXISTS tunnel (
+			id INTEGER PRIMARY KEY AUTOINCREMENT,
+			name VARCHAR(100) NOT NULL,
+			traffic_ratio REAL NOT NULL DEFAULT 1.0,
+			type INTEGER NOT NULL,
+			protocol VARCHAR(10) NOT NULL DEFAULT 'tls',
+			flow INTEGER NOT NULL,
+			created_time INTEGER NOT NULL,
+			updated_time INTEGER NOT NULL,
+			status INTEGER NOT NULL,
+			in_ip TEXT
+		)
+	`); err != nil {
+		t.Fatalf("create very legacy tunnel table: %v", err)
+	}
+
+	now := time.Now().UnixMilli()
+	if _, err := legacyDB.Exec(`
+		INSERT INTO node(name, secret, server_ip, port, interface_name, version, http, tls, socks, created_time, updated_time, status)
+		VALUES(?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+	`, "legacy-node", "legacy-secret", "10.10.0.1", "10000-10010", "eth0", "v-old", 1, 1, 1, now, now, 1); err != nil {
+		t.Fatalf("seed legacy node row: %v", err)
+	}
+
+	r, err := repo.Open(dbPath)
+	if err != nil {
+		t.Fatalf("open migrated sqlite: %v", err)
+	}
+	t.Cleanup(func() {
+		_ = r.Close()
+	})
+
+	columns := readTableColumns(t, r.DB(), "node")
+	for _, required := range []string{
+		"server_ip_v4",
+		"server_ip_v6",
+		"extra_ips",
+		"tcp_listen_addr",
+		"udp_listen_addr",
+		"inx",
+		"is_remote",
+		"remote_url",
+		"remote_token",
+		"remote_config",
+	} {
+		if !columns[required] {
+			t.Fatalf("expected node column %q to exist after migration", required)
+		}
+	}
+
+	tunnelColumns := readTableColumns(t, r.DB(), "tunnel")
+	for _, required := range []string{"inx", "ip_preference"} {
+		if !tunnelColumns[required] {
+			t.Fatalf("expected tunnel column %q to exist after migration", required)
+		}
 	}
 }

@@ -0,0 +1,313 @@
+package contract_test
+
+import (
+	"bytes"
+	"database/sql"
+	"encoding/json"
+	"net/http"
+	"net/http/httptest"
+	"path/filepath"
+	"testing"
+	"time"
+
+	"go-backend/internal/auth"
+	"go-backend/internal/http/response"
+	"go-backend/internal/store/repo"
+)
+
+func TestSpeedLimitWithoutTunnelContract(t *testing.T) {
+	secret := "contract-jwt-secret"
+	router, _ := setupContractRouter(t, secret)
+
+	adminToken, err := auth.GenerateToken(1, "admin_user", 0, secret)
+	if err != nil {
+		t.Fatalf("generate admin token: %v", err)
+	}
+
+	t.Run("create speed limit", func(t *testing.T) {
+		body := `{"name":"test-limit-no-tunnel","speed":100,"status":1}`
+		req := httptest.NewRequest(http.MethodPost, "/api/v1/speed-limit/create", bytes.NewBufferString(body))
+		req.Header.Set("Authorization", adminToken)
+		req.Header.Set("Content-Type", "application/json")
+		res := httptest.NewRecorder()
+		router.ServeHTTP(res, req)
+
+		assertCode(t, res, 0)
+	})
+
+	t.Run("list does not expose tunnel binding fields", func(t *testing.T) {
+		req := httptest.NewRequest(http.MethodPost, "/api/v1/speed-limit/list", nil)
+		req.Header.Set("Authorization", adminToken)
+		res := httptest.NewRecorder()
+		router.ServeHTTP(res, req)
+
+		var out response.R
+		if err := json.NewDecoder(res.Body).Decode(&out); err != nil {
+			t.Fatalf("decode response: %v", err)
+		}
+		if out.Code != 0 {
+			t.Fatalf("expected code 0, got %d", out.Code)
+		}
+
+		data, ok := out.Data.([]interface{})
+		if !ok {
+			t.Fatalf("expected data to be array, got %T", out.Data)
+		}
+
+		for _, item := range data {
+			m, ok := item.(map[string]interface{})
+			if !ok {
+				continue
+			}
+			if m["name"] != "test-limit-no-tunnel" {
+				continue
+			}
+			if tunnelID, exists := m["tunnelId"]; exists && tunnelID != nil {
+				t.Fatalf("expected tunnelId to be absent or nil, got %v", tunnelID)
+			}
+			if tunnelName, exists := m["tunnelName"]; exists && tunnelName != nil && tunnelName != "" {
+				t.Fatalf("expected tunnelName to be absent or empty, got %v", tunnelName)
+			}
+			return
+		}
+
+		t.Fatal("speed limit 'test-limit-no-tunnel' not found in list")
+	})
+}
+
+func TestSpeedLimitCreateIgnoresTunnelBindingContract(t *testing.T) {
+	secret := "contract-jwt-secret"
+	router, r := setupContractRouter(t, secret)
+
+	adminToken, err := auth.GenerateToken(1, "admin_user", 0, secret)
+	if err != nil {
+		t.Fatalf("generate admin token: %v", err)
+	}
+
+	tunnelID := mustCreateSpeedLimitTunnel(t, r, "test-speed-limit-create-ignore-tunnel")
+
+	body := `{"name":"test-limit-ignore-tunnel","speed":200,"tunnelId":` + jsonInt(tunnelID) + `,"status":1}`
+	req := httptest.NewRequest(http.MethodPost, "/api/v1/speed-limit/create", bytes.NewBufferString(body))
+	req.Header.Set("Authorization", adminToken)
+	req.Header.Set("Content-Type", "application/json")
+	res := httptest.NewRecorder()
+	router.ServeHTTP(res, req)
+
+	assertCode(t, res, 0)
+
+	req = httptest.NewRequest(http.MethodPost, "/api/v1/speed-limit/list", nil)
+	req.Header.Set("Authorization", adminToken)
+	res = httptest.NewRecorder()
+	router.ServeHTTP(res, req)
+
+	var out response.R
+	if err := json.NewDecoder(res.Body).Decode(&out); err != nil {
+		t.Fatalf("decode response: %v", err)
+	}
+	if out.Code != 0 {
+		t.Fatalf("expected code 0, got %d", out.Code)
+	}
+
+	data, ok := out.Data.([]interface{})
+	if !ok {
+		t.Fatalf("expected data to be array, got %T", out.Data)
+	}
+
+	for _, item := range data {
+		m, ok := item.(map[string]interface{})
+		if !ok {
+			continue
+		}
+		if m["name"] != "test-limit-ignore-tunnel" {
+			continue
+		}
+		if tunnelIDVal, exists := m["tunnelId"]; exists && tunnelIDVal != nil {
+			t.Fatalf("expected tunnelId ignored and nil, got %v", tunnelIDVal)
+		}
+		if tunnelNameVal, exists := m["tunnelName"]; exists && tunnelNameVal != nil && tunnelNameVal != "" {
+			t.Fatalf("expected tunnelName ignored and empty, got %v", tunnelNameVal)
+		}
+		return
+	}
+
+	t.Fatal("speed limit 'test-limit-ignore-tunnel' not found in list")
+}
+
+func TestSpeedLimitUpdateIgnoresTunnelBindingContract(t *testing.T) {
+	secret := "contract-jwt-secret"
+	router, r := setupContractRouter(t, secret)
+
+	adminToken, err := auth.GenerateToken(1, "admin_user", 0, secret)
+	if err != nil {
+		t.Fatalf("generate admin token: %v", err)
+	}
+
+	tunnelID := mustCreateSpeedLimitTunnel(t, r, "test-speed-limit-update-ignore-tunnel")
+	speedLimitID := mustCreateSpeedLimitRepo(t, r, "test-limit-update-ignore-tunnel")
+
+	body := `{"id":` + jsonInt(speedLimitID) + `,"name":"test-limit-update-ignore-tunnel","speed":256,"tunnelId":` + jsonInt(tunnelID) + `,"status":1}`
+	req := httptest.NewRequest(http.MethodPost, "/api/v1/speed-limit/update", bytes.NewBufferString(body))
+	req.Header.Set("Authorization", adminToken)
+	req.Header.Set("Content-Type", "application/json")
+	res := httptest.NewRecorder()
+	router.ServeHTTP(res, req)
+
+	assertCode(t, res, 0)
+
+	req = httptest.NewRequest(http.MethodPost, "/api/v1/speed-limit/list", nil)
+	req.Header.Set("Authorization", adminToken)
+	res = httptest.NewRecorder()
+	router.ServeHTTP(res, req)
+
+	var out response.R
+	if err := json.NewDecoder(res.Body).Decode(&out); err != nil {
+		t.Fatalf("decode response: %v", err)
+	}
+	if out.Code != 0 {
+		t.Fatalf("expected code 0, got %d", out.Code)
+	}
+
+	data, ok := out.Data.([]interface{})
+	if !ok {
+		t.Fatalf("expected data to be array, got %T", out.Data)
+	}
+
+	for _, item := range data {
+		m, ok := item.(map[string]interface{})
+		if !ok {
+			continue
+		}
+		if m["name"] != "test-limit-update-ignore-tunnel" {
+			continue
+		}
+		if tunnelIDVal, exists := m["tunnelId"]; exists && tunnelIDVal != nil {
+			t.Fatalf("expected tunnelId ignored and nil after update, got %v", tunnelIDVal)
+		}
+		if speedVal, ok := m["speed"].(float64); !ok || int(speedVal) != 256 {
+			t.Fatalf("expected speed 256 after update, got %v", m["speed"])
+		}
+		return
+	}
+
+	t.Fatal("speed limit 'test-limit-update-ignore-tunnel' not found in list")
+}
+
+func TestSpeedLimitDatabaseNullableFields(t *testing.T) {
+	dbPath := filepath.Join(t.TempDir(), "speed-limit-null.db")
+	r, err := repo.Open(dbPath)
+	if err != nil {
+		t.Fatalf("open sqlite: %v", err)
+	}
+	t.Cleanup(func() { _ = r.Close() })
+
+	id, err := r.CreateSpeedLimit("db-test-limit", 100, 1, 1)
+	if err != nil {
+		t.Fatalf("CreateSpeedLimit failed: %v", err)
+	}
+	if id <= 0 {
+		t.Fatalf("expected valid id, got %d", id)
+	}
+
+	var tunnelID sql.NullInt64
+	var tunnelName sql.NullString
+	err = r.DB().Raw("SELECT tunnel_id, tunnel_name FROM speed_limit WHERE id = ?", id).Row().Scan(&tunnelID, &tunnelName)
+	if err != nil {
+		t.Fatalf("query failed: %v", err)
+	}
+	if tunnelID.Valid {
+		t.Fatalf("expected TunnelID to be NULL, got %d", tunnelID.Int64)
+	}
+	if tunnelName.Valid && tunnelName.String != "" {
+		t.Fatalf("expected TunnelName to be NULL or empty, got %s", tunnelName.String)
+	}
+}
+
+func TestSpeedLimitUpdateClearsHistoricalBinding(t *testing.T) {
+	dbPath := filepath.Join(t.TempDir(), "speed-limit-update-clear.db")
+	r, err := repo.Open(dbPath)
+	if err != nil {
+		t.Fatalf("open sqlite: %v", err)
+	}
+	t.Cleanup(func() { _ = r.Close() })
+
+	tunnelID := mustCreateSpeedLimitTunnel(t, r, "speed-limit-update-clear-tunnel")
+	now := time.Now().UnixMilli()
+	if err := r.DB().Exec(`
+		INSERT INTO speed_limit(name, speed, tunnel_id, tunnel_name, created_time, updated_time, status)
+		VALUES(?, ?, ?, ?, ?, ?, ?)
+	`, "speed-limit-update-clear", 300, tunnelID, "speed-limit-update-clear-tunnel", now, now, 1).Error; err != nil {
+		t.Fatalf("insert speed limit with tunnel binding: %v", err)
+	}
+	speedLimitID := mustLastInsertID(t, r, "speed-limit-update-clear")
+
+	err = r.UpdateSpeedLimit(speedLimitID, "speed-limit-update-clear", 512, 1, time.Now().UnixMilli())
+	if err != nil {
+		t.Fatalf("UpdateSpeedLimit failed: %v", err)
+	}
+
+	var dbTunnelID sql.NullInt64
+	var dbTunnelName sql.NullString
+	err = r.DB().Raw("SELECT tunnel_id, tunnel_name FROM speed_limit WHERE id = ?", speedLimitID).Row().Scan(&dbTunnelID, &dbTunnelName)
+	if err != nil {
+		t.Fatalf("query updated speed limit failed: %v", err)
+	}
+	if dbTunnelID.Valid {
+		t.Fatalf("expected tunnel_id cleared after update, got %d", dbTunnelID.Int64)
+	}
+	if dbTunnelName.Valid && dbTunnelName.String != "" {
+		t.Fatalf("expected tunnel_name cleared after update, got %q", dbTunnelName.String)
+	}
+}
+
+func TestSpeedLimitGetSpeed(t *testing.T) {
+	dbPath := filepath.Join(t.TempDir(), "speed-limit-getspeed.db")
+	r, err := repo.Open(dbPath)
+	if err != nil {
+		t.Fatalf("open sqlite: %v", err)
+	}
+	t.Cleanup(func() { _ = r.Close() })
+
+	speedLimitID, err := r.CreateSpeedLimit("get-speed-test", 500, 1, 1)
+	if err != nil {
+		t.Fatalf("create speed limit: %v", err)
+	}
+
+	t.Run("GetSpeedLimitSpeed returns correct speed", func(t *testing.T) {
+		speed, err := r.GetSpeedLimitSpeed(speedLimitID)
+		if err != nil {
+			t.Fatalf("GetSpeedLimitSpeed failed: %v", err)
+		}
+		if speed != 500 {
+			t.Fatalf("expected speed 500, got %d", speed)
+		}
+	})
+
+	t.Run("GetSpeedLimitSpeed returns error for non-existent id", func(t *testing.T) {
+		_, err := r.GetSpeedLimitSpeed(99999)
+		if err == nil {
+			t.Fatal("expected error for non-existent speed limit ID")
+		}
+	})
+}
+
+func mustCreateSpeedLimitTunnel(t *testing.T, r *repo.Repository, name string) int64 {
+	t.Helper()
+	now := time.Now().UnixMilli()
+	if err := r.DB().Exec(`
+		INSERT INTO tunnel(name, traffic_ratio, type, protocol, flow, created_time, updated_time, status, in_ip, inx)
+		VALUES(?, 1.0, 1, 'tls', 99999, ?, ?, 1, NULL, 0)
+	`, name, now, now).Error; err != nil {
+		t.Fatalf("create tunnel failed: %v", err)
+	}
+	return mustLastInsertID(t, r, name)
+}
+
+func mustCreateSpeedLimitRepo(t *testing.T, r *repo.Repository, name string) int64 {
+	t.Helper()
+	now := time.Now().UnixMilli()
+	id, err := r.CreateSpeedLimit(name, 100, now, 1)
+	if err != nil {
+		t.Fatalf("create speed limit failed: %v", err)
+	}
+	return id
+}
@@ -1,4 +1,4 @@
-package contract
+package contract_test

 import (
 	"encoding/json"
@@ -13,7 +13,7 @@ import (

 func TestUserTunnelVisibleListContracts(t *testing.T) {
 	secret := "contract-jwt-secret"
-	router, repo := setupDiagnosisContractRouter(t, secret)
+	router, repo := setupContractRouter(t, secret)
 	now := time.Now().UnixMilli()

 	if err := repo.DB().Exec(`
@@ -126,8 +126,11 @@ func collectTunnelIDs(t *testing.T, data interface{}) map[int64]bool {
 		if !ok {
 			t.Fatalf("expected object item, got %T", item)
 		}
-		id := int64(obj["id"].(float64))
-		ids[id] = true
+		idFloat, ok := obj["id"].(float64)
+		if !ok {
+			t.Fatalf("expected id to be float64, got %T", obj["id"])
+		}
+		ids[int64(idFloat)] = true
 	}
 	return ids
 }
@@ -0,0 +1,181 @@
+package contract_test
+
+import (
+	"bytes"
+	"encoding/json"
+	"net/http"
+	"net/http/httptest"
+	"strings"
+	"testing"
+	"time"
+
+	"go-backend/internal/auth"
+	"go-backend/internal/http/response"
+)
+
+func TestForwardCreateBlockedWhenUserQuotaExceeded(t *testing.T) {
+	secret := "contract-jwt-secret"
+	router, repo := setupContractRouter(t, secret)
+	now := time.Now()
+	nowMs := now.UnixMilli()
+	dayKey := int64(now.Year()*10000 + int(now.Month())*100 + now.Day())
+	monthKey := int64(now.Year()*100 + int(now.Month()))
+
+	if err := repo.DB().Exec(`
+		INSERT INTO user(id, user, pwd, role_id, exp_time, flow, in_flow, out_flow, flow_reset_time, num, created_time, updated_time, status)
+		VALUES(2, 'quota_user', 'pwd', 1, 2727251700000, 99999, 0, 0, 1, 99999, ?, ?, 1)
+	`, nowMs, nowMs).Error; err != nil {
+		t.Fatalf("insert user: %v", err)
+	}
+	if err := repo.DB().Exec(`
+		INSERT INTO tunnel(id, name, traffic_ratio, type, protocol, flow, created_time, updated_time, status, in_ip, inx)
+		VALUES(1, 'quota_tunnel', 1.0, 1, 'tls', 1, ?, ?, 1, NULL, 0)
+	`, nowMs, nowMs).Error; err != nil {
+		t.Fatalf("insert tunnel: %v", err)
+	}
+	if err := repo.DB().Exec(`
+		INSERT INTO user_tunnel(id, user_id, tunnel_id, speed_id, num, flow, in_flow, out_flow, flow_reset_time, exp_time, status)
+		VALUES(10, 2, 1, NULL, 99999, 99999, 0, 0, 1, 2727251700000, 1)
+	`).Error; err != nil {
+		t.Fatalf("insert user_tunnel: %v", err)
+	}
+	if err := repo.DB().Exec(`
+		INSERT INTO user_quota(user_id, daily_limit_gb, monthly_limit_gb, daily_used_bytes, monthly_used_bytes, day_key, month_key, disabled_by_quota, disabled_at, paused_forward_ids, created_time, updated_time)
+		VALUES(2, 10, 0, ?, ?, ?, ?, 1, ?, '', ?, ?)
+	`, 11*contractBytesPerGB, 11*contractBytesPerGB, dayKey, monthKey, nowMs, nowMs, nowMs).Error; err != nil {
+		t.Fatalf("insert user_quota: %v", err)
+	}
+
+	token, err := auth.GenerateToken(2, "quota_user", 1, secret)
+	if err != nil {
+		t.Fatalf("generate token: %v", err)
+	}
+	req := httptest.NewRequest(http.MethodPost, "/api/v1/forward/create", bytes.NewBufferString(`{"tunnelId":1,"name":"quota-forward","remoteAddr":"1.1.1.1:53"}`))
+	req.Header.Set("Authorization", token)
+	req.Header.Set("Content-Type", "application/json")
+	res := httptest.NewRecorder()
+
+	router.ServeHTTP(res, req)
+
+	var out response.R
+	if err := json.NewDecoder(res.Body).Decode(&out); err != nil {
+		t.Fatalf("decode response: %v", err)
+	}
+	if out.Code == 0 {
+		t.Fatalf("expected non-zero code when user quota exceeded")
+	}
+	if !strings.Contains(out.Msg, "配额") {
+		t.Fatalf("expected quota error, got %q", out.Msg)
+	}
+}
+
+func TestForwardResumeBlockedWhenUserQuotaExceeded(t *testing.T) {
+	secret := "contract-jwt-secret"
+	router, repo := setupContractRouter(t, secret)
+	now := time.Now()
+	nowMs := now.UnixMilli()
+	dayKey := int64(now.Year()*10000 + int(now.Month())*100 + now.Day())
+	monthKey := int64(now.Year()*100 + int(now.Month()))
+
+	if err := repo.DB().Exec(`
+		INSERT INTO user(id, user, pwd, role_id, exp_time, flow, in_flow, out_flow, flow_reset_time, num, created_time, updated_time, status)
+		VALUES(2, 'quota_resume_user', 'pwd', 1, 2727251700000, 99999, 0, 0, 1, 99999, ?, ?, 1)
+	`, nowMs, nowMs).Error; err != nil {
+		t.Fatalf("insert user: %v", err)
+	}
+	if err := repo.DB().Exec(`
+		INSERT INTO tunnel(id, name, traffic_ratio, type, protocol, flow, created_time, updated_time, status, in_ip, inx)
+		VALUES(1, 'quota_resume_tunnel', 1.0, 1, 'tls', 1, ?, ?, 1, NULL, 0)
+	`, nowMs, nowMs).Error; err != nil {
+		t.Fatalf("insert tunnel: %v", err)
+	}
+	if err := repo.DB().Exec(`
+		INSERT INTO user_tunnel(id, user_id, tunnel_id, speed_id, num, flow, in_flow, out_flow, flow_reset_time, exp_time, status)
+		VALUES(10, 2, 1, NULL, 99999, 99999, 0, 0, 1, 2727251700000, 1)
+	`).Error; err != nil {
+		t.Fatalf("insert user_tunnel: %v", err)
+	}
+	if err := repo.DB().Exec(`
+		INSERT INTO forward(id, user_id, user_name, name, tunnel_id, remote_addr, strategy, in_flow, out_flow, created_time, updated_time, status, inx)
+		VALUES(1, 2, 'quota_resume_user', 'quota_resume_forward', 1, '1.1.1.1:53', 'fifo', 0, 0, ?, ?, 0, 0)
+	`, nowMs, nowMs).Error; err != nil {
+		t.Fatalf("insert forward: %v", err)
+	}
+	if err := repo.DB().Exec(`
+		INSERT INTO user_quota(user_id, daily_limit_gb, monthly_limit_gb, daily_used_bytes, monthly_used_bytes, day_key, month_key, disabled_by_quota, disabled_at, paused_forward_ids, created_time, updated_time)
+		VALUES(2, 10, 0, ?, ?, ?, ?, 1, ?, '1', ?, ?)
+	`, 11*contractBytesPerGB, 11*contractBytesPerGB, dayKey, monthKey, nowMs, nowMs, nowMs).Error; err != nil {
+		t.Fatalf("insert user_quota: %v", err)
+	}
+
+	token, err := auth.GenerateToken(2, "quota_resume_user", 1, secret)
+	if err != nil {
+		t.Fatalf("generate token: %v", err)
+	}
+	req := httptest.NewRequest(http.MethodPost, "/api/v1/forward/resume", bytes.NewBufferString(`{"id":1}`))
+	req.Header.Set("Authorization", token)
+	req.Header.Set("Content-Type", "application/json")
+	res := httptest.NewRecorder()
+
+	router.ServeHTTP(res, req)
+
+	var out response.R
+	if err := json.NewDecoder(res.Body).Decode(&out); err != nil {
+		t.Fatalf("decode response: %v", err)
+	}
+	if out.Code == 0 {
+		t.Fatalf("expected non-zero code when user quota exceeded")
+	}
+	if !strings.Contains(out.Msg, "配额") {
+		t.Fatalf("expected quota error, got %q", out.Msg)
+	}
+	status := mustQueryInt(t, repo, `SELECT status FROM forward WHERE id = 1`)
+	if status != 0 {
+		t.Fatalf("expected forward to remain paused, got %d", status)
+	}
+}
+
+func TestUserQuotaResetClearsDisableFlag(t *testing.T) {
+	secret := "contract-jwt-secret"
+	router, repo := setupContractRouter(t, secret)
+	now := time.Now()
+	nowMs := now.UnixMilli()
+	dayKey := int64(now.Year()*10000 + int(now.Month())*100 + now.Day())
+	monthKey := int64(now.Year()*100 + int(now.Month()))
+
+	if err := repo.DB().Exec(`
+		INSERT INTO user(id, user, pwd, role_id, exp_time, flow, in_flow, out_flow, flow_reset_time, num, created_time, updated_time, status)
+		VALUES(2, 'quota_reset_user', 'pwd', 1, 2727251700000, 99999, 0, 0, 1, 99999, ?, ?, 1)
+	`, nowMs, nowMs).Error; err != nil {
+		t.Fatalf("insert user: %v", err)
+	}
+	if err := repo.DB().Exec(`
+		INSERT INTO user_quota(user_id, daily_limit_gb, monthly_limit_gb, daily_used_bytes, monthly_used_bytes, day_key, month_key, disabled_by_quota, disabled_at, paused_forward_ids, created_time, updated_time)
+		VALUES(2, 10, 0, ?, ?, ?, ?, 1, ?, '', ?, ?)
+	`, 11*contractBytesPerGB, 11*contractBytesPerGB, dayKey, monthKey, nowMs, nowMs, nowMs).Error; err != nil {
+		t.Fatalf("insert user_quota: %v", err)
+	}
+
+	token, err := auth.GenerateToken(1, "admin", 0, secret)
+	if err != nil {
+		t.Fatalf("generate token: %v", err)
+	}
+	req := httptest.NewRequest(http.MethodPost, "/api/v1/user/quota/reset", bytes.NewBufferString(`{"userId":2,"scope":"all"}`))
+	req.Header.Set("Authorization", token)
+	req.Header.Set("Content-Type", "application/json")
+	res := httptest.NewRecorder()
+
+	router.ServeHTTP(res, req)
+
+	var out response.R
+	if err := json.NewDecoder(res.Body).Decode(&out); err != nil {
+		t.Fatalf("decode response: %v", err)
+	}
+	if out.Code != 0 {
+		t.Fatalf("expected reset success, got code=%d msg=%q", out.Code, out.Msg)
+	}
+	quotaDisabled := mustQueryInt(t, repo, `SELECT disabled_by_quota FROM user_quota WHERE user_id = 2`)
+	if quotaDisabled != 0 {
+		t.Fatalf("expected quota disable flag cleared, got %d", quotaDisabled)
+	}
+}
@@ -0,0 +1,105 @@
+package contract_test
+
+import (
+	"bytes"
+	"encoding/json"
+	"net/http"
+	"net/http/httptest"
+	"testing"
+	"time"
+
+	"go-backend/internal/auth"
+	"go-backend/internal/http/response"
+)
+
+func TestUserTunnelListReturnsStoredStatusContract(t *testing.T) {
+	secret := "contract-jwt-secret"
+	router, repo := setupContractRouter(t, secret)
+	now := time.Now().UnixMilli()
+
+	adminToken, err := auth.GenerateToken(1, "admin_user", 0, secret)
+	if err != nil {
+		t.Fatalf("generate admin token: %v", err)
+	}
+
+	if err := repo.DB().Exec(`
+		INSERT INTO user(id, user, pwd, role_id, exp_time, flow, in_flow, out_flow, flow_reset_time, num, created_time, updated_time, status)
+		VALUES(201, 'user_tunnel_status_user', 'pwd', 1, 2727251700000, 99999, 0, 0, 1, 99999, ?, ?, 1)
+	`, now, now).Error; err != nil {
+		t.Fatalf("insert user: %v", err)
+	}
+
+	if err := repo.DB().Exec(`
+		INSERT INTO tunnel(id, name, traffic_ratio, type, protocol, flow, created_time, updated_time, status, in_ip, inx)
+		VALUES(301, 'user-tunnel-status-enabled', 1.0, 1, 'tls', 1, ?, ?, 1, NULL, 0)
+	`, now, now).Error; err != nil {
+		t.Fatalf("insert tunnel enabled: %v", err)
+	}
+	if err := repo.DB().Exec(`
+		INSERT INTO tunnel(id, name, traffic_ratio, type, protocol, flow, created_time, updated_time, status, in_ip, inx)
+		VALUES(302, 'user-tunnel-status-disabled', 1.0, 1, 'tls', 1, ?, ?, 1, NULL, 1)
+	`, now, now).Error; err != nil {
+		t.Fatalf("insert tunnel disabled: %v", err)
+	}
+
+	if err := repo.DB().Exec(`
+		INSERT INTO user_tunnel(id, user_id, tunnel_id, speed_id, num, flow, in_flow, out_flow, flow_reset_time, exp_time, status)
+		VALUES(401, 201, 301, NULL, 10, 500, 0, 0, 1, 2727251700000, 1)
+	`).Error; err != nil {
+		t.Fatalf("insert enabled user_tunnel: %v", err)
+	}
+	if err := repo.DB().Exec(`
+		INSERT INTO user_tunnel(id, user_id, tunnel_id, speed_id, num, flow, in_flow, out_flow, flow_reset_time, exp_time, status)
+		VALUES(402, 201, 302, NULL, 10, 500, 0, 0, 1, 2727251700000, 0)
+	`).Error; err != nil {
+		t.Fatalf("insert disabled user_tunnel: %v", err)
+	}
+
+	body := bytes.NewBufferString(`{"userId":201}`)
+	req := httptest.NewRequest(http.MethodPost, "/api/v1/tunnel/user/list", body)
+	req.Header.Set("Authorization", adminToken)
+	req.Header.Set("Content-Type", "application/json")
+	res := httptest.NewRecorder()
+
+	router.ServeHTTP(res, req)
+
+	var out response.R
+	if err := json.NewDecoder(res.Body).Decode(&out); err != nil {
+		t.Fatalf("decode response: %v", err)
+	}
+	if out.Code != 0 {
+		t.Fatalf("expected code 0, got %d (%s)", out.Code, out.Msg)
+	}
+
+	items, ok := out.Data.([]interface{})
+	if !ok {
+		t.Fatalf("expected array data, got %T", out.Data)
+	}
+	if len(items) != 2 {
+		t.Fatalf("expected 2 items, got %d", len(items))
+	}
+
+	statusByTunnelID := make(map[int64]int, len(items))
+	for _, item := range items {
+		obj, ok := item.(map[string]interface{})
+		if !ok {
+			t.Fatalf("expected object item, got %T", item)
+		}
+		tunnelID, ok := obj["tunnelId"].(float64)
+		if !ok {
+			t.Fatalf("expected tunnelId to be float64, got %T", obj["tunnelId"])
+		}
+		status, ok := obj["status"].(float64)
+		if !ok {
+			t.Fatalf("expected status to be float64, got %T", obj["status"])
+		}
+		statusByTunnelID[int64(tunnelID)] = int(status)
+	}
+
+	if statusByTunnelID[301] != 1 {
+		t.Fatalf("expected enabled tunnel status 1, got %d", statusByTunnelID[301])
+	}
+	if statusByTunnelID[302] != 0 {
+		t.Fatalf("expected disabled tunnel status 0, got %d", statusByTunnelID[302])
+	}
+}
@@ -1,6 +1,6 @@
 # GO-GOST SERVICE KNOWLEDGE BASE

-**Generated:** Sun Feb 15 2026
+**Generated:** Thu Feb 26 2026

 ## OVERVIEW
 Forwarding agent built on GOST v3 with a local fork of `github.com/go-gost/x` under `x/`.
@@ -19,16 +19,18 @@ go-gost/
 ## WHERE TO LOOK
 | Task | Location | Notes |
 |------|----------|-------|
-| Panel integration config | `go-gost/config.go` | Expects `config.json` in cwd by default |
-| Service lifecycle/reload | `go-gost/program.go` | Parses config; handles SIGHUP reload |
-| WebSocket reporting | `go-gost/main.go` | Starts reporter + sets HTTP report URL |
-| Protocol behaviors | `go-gost/x/` | Handlers/listeners/dialers live here |
+| **Panel integration config** | `go-gost/config.go` | Expects `config.json` in cwd by default |
+| **Service lifecycle/reload** | `go-gost/program.go` | Parses config; handles SIGHUP reload |
+| **WebSocket reporting** | `go-gost/main.go` | Starts reporter + sets HTTP report URL |
+| **Protocol behaviors** | `go-gost/x/` | Handlers/listeners/dialers live here |
+| **Build** | `go-gost/Makefile` | Cross-compile targets for amd64/arm64 |

 ## CONVENTIONS
 - Two configs exist: panel integration uses `config.json`; forwarding services use GOST config (defaults to `gost.{json,yaml}` via viper search paths).
 - `go-gost/x/` is the primary extension surface; avoid editing vendored deps.
 - Agent communicates with panel via WebSocket (real-time commands) + HTTP (batch traffic reports).
 - All panel communication uses AES encryption with node `secret` as PSK.
+- CI builds with `CGO_ENABLED=0` for static binaries, then compresses with UPX.

 ## ANTI-PATTERNS
 - **DO NOT EDIT** generated protobuf in `x/internal/util/grpc/proto/`.
@@ -109,12 +109,12 @@ func main() {
 	// 加载配置文件
 	config, err := LoadConfig("config.json")
 	if err != nil {
-		fmt.Println("❌ 配置加载失败: %v\n", err)
+		fmt.Printf("❌ 配置加载失败: %v\n", err)
 		fmt.Println("请确保当前目录存在 config.json 文件")
 		os.Exit(1)
 	}

-	fmt.Println("✅ 配置加载成功 - addr: %s", config.Addr)
+	fmt.Printf("✅ 配置加载成功 - addr: %s\n", config.Addr)

 	log := xlogger.NewLogger()
 	logger.SetDefault(log)
@@ -6,27 +6,28 @@ Local fork of `github.com/go-gost/x` used by `go-gost/` via `replace github.com/
 ## STRUCTURE
 ```
 go-gost/x/
-├── api/        # Gin management API + embedded swagger docs
+├── api/        # Gin management API + embedded swagger docs (22 files)
 ├── config/     # Config model + parsing/load/reload
 ├── connector/  # Outbound connect implementations
-├── dialer/     # Outbound dialers (tcp/tls/ws/quic/...) 
+├── dialer/     # Outbound dialers (tcp/tls/ws/quic/...)
 ├── handler/    # Protocol handlers (socks/http/tunnel/relay/...)
 ├── listener/   # Inbound listeners (tcp/udp/tun/tap/redirect/...)
 ├── limiter/    # Traffic/rate/conn limiters
-├── registry/   # Registries for services/handlers/listeners/etc
+├── registry/   # Registries for services/handlers/listeners/etc (20 files)
 ├── service/    # Service wrappers + reporting hooks
-├── socket/     # WebSocket reporter / panel integration
+├── socket/     # WebSocket reporter / panel integration (6 files)
 └── internal/   # Shared internals (grpc proto, net utils, sniffing, tls, ...)
 ```

 ## WHERE TO LOOK
 | Task | Location | Notes |
 |------|----------|-------|
-| Management API routes/auth | `go-gost/x/api/api.go` | `/docs`, `/config/*`; BasicAuth + interceptor |
-| Service config parsing | `go-gost/x/config/parsing/` | Converts config to running services |
-| Add a handler | `go-gost/x/handler/` | Per-protocol subdirs |
-| Add a listener/dialer | `go-gost/x/listener/`, `go-gost/x/dialer/` | Transport variants |
-| Panel reporting | `go-gost/x/socket/` | WebSocket + HTTP report URL hooks |
+| **Management API routes/auth** | `go-gost/x/api/api.go` | `/docs`, `/config/*`; BasicAuth + interceptor |
+| **Service config parsing** | `go-gost/x/config/parsing/` | Converts config to running services |
+| **Add a handler** | `go-gost/x/handler/` | Per-protocol subdirs |
+| **Add a listener/dialer** | `go-gost/x/listener/`, `go-gost/x/dialer/` | Transport variants |
+| **Panel reporting** | `go-gost/x/socket/` | WebSocket + HTTP report URL hooks |
+| **Register new component** | `go-gost/x/registry/` | `Register{Type}(name, creator)` |

 ## CONVENTIONS
 - `go-gost/x/` is a standalone Go module (`go-gost/x/go.mod`); run go tooling from this dir when debugging module resolution.
@@ -41,4 +42,4 @@ go-gost/x/
 ```bash
 cd go-gost/x
 go test ./...
-```
+```
@@ -6,7 +6,9 @@ import (
 	"encoding/json"
 	"fmt"
 	"net/http"
+	"net/url"
 	"strings"
+	"sync"
 	"time"

 	"github.com/go-gost/core/observer/stats"
@@ -18,6 +20,15 @@ import (
 var httpReportURL string
 var configReportURL string
 var httpAESCrypto *crypto.AESCrypto // 新增：HTTP上报加密器
+var reportURLPreferenceMutex sync.RWMutex
+var preferredUploadURL string
+var preferredConfigURL string
+var reportDo = func(ctx context.Context, req *http.Request, timeout time.Duration) (*http.Response, error) {
+	client := &http.Client{
+		Timeout: timeout,
+	}
+	return client.Do(req.WithContext(ctx))
+}

 // TrafficReportItem 流量报告项（压缩格式）
 type TrafficReportItem struct {
@@ -27,8 +38,17 @@ type TrafficReportItem struct {
 }

 func SetHTTPReportURL(addr string, secret string) {
-	httpReportURL = "http://" + addr + "/flow/upload?secret=" + secret
-	configReportURL = "http://" + addr + "/flow/config?secret=" + secret
+	uploadURLs, configURLs := buildReportURLCandidates(addr, secret)
+	if len(uploadURLs) > 0 {
+		httpReportURL = strings.Join(uploadURLs, ",")
+	}
+	if len(configURLs) > 0 {
+		configReportURL = strings.Join(configURLs, ",")
+	}
+	reportURLPreferenceMutex.Lock()
+	preferredUploadURL = ""
+	preferredConfigURL = ""
+	reportURLPreferenceMutex.Unlock()

 	// 创建 AES 加密器
 	var err error
@@ -41,8 +61,173 @@ func SetHTTPReportURL(addr string, secret string) {
 	}
 }

+func buildReportURLCandidates(addr string, secret string) (upload []string, config []string) {
+	normalizedAddr, explicitScheme := normalizeReportAddress(addr)
+	if normalizedAddr == "" {
+		normalizedAddr = strings.TrimSpace(addr)
+	}
+
+	schemes := []string{"https", "http"}
+	if mappedScheme := mapToHTTPScheme(explicitScheme); mappedScheme == "http" {
+		schemes = []string{"http", "https"}
+	}
+
+	upload = []string{
+		schemes[0] + "://" + normalizedAddr + "/flow/upload?secret=" + secret,
+		schemes[1] + "://" + normalizedAddr + "/flow/upload?secret=" + secret,
+	}
+	config = []string{
+		schemes[0] + "://" + normalizedAddr + "/flow/config?secret=" + secret,
+		schemes[1] + "://" + normalizedAddr + "/flow/config?secret=" + secret,
+	}
+	return upload, config
+}
+
+func normalizeReportAddress(addr string) (string, string) {
+	raw := strings.TrimSpace(addr)
+	if raw == "" {
+		return "", ""
+	}
+
+	scheme := ""
+	if idx := strings.Index(raw, "://"); idx > 0 {
+		scheme = strings.ToLower(strings.TrimSpace(raw[:idx]))
+		if parsed, err := url.Parse(raw); err == nil {
+			if host := strings.TrimSpace(parsed.Host); host != "" {
+				return host, scheme
+			}
+		}
+		raw = raw[idx+3:]
+	}
+
+	if idx := strings.IndexAny(raw, "/?#"); idx >= 0 {
+		raw = raw[:idx]
+	}
+	return strings.TrimSpace(raw), scheme
+}
+
+func mapToHTTPScheme(scheme string) string {
+	switch strings.ToLower(strings.TrimSpace(scheme)) {
+	case "https", "wss":
+		return "https"
+	case "http", "ws":
+		return "http"
+	default:
+		return ""
+	}
+}
+
+func loadPreferredURL(preferred *string) string {
+	if preferred == nil {
+		return ""
+	}
+
+	reportURLPreferenceMutex.RLock()
+	defer reportURLPreferenceMutex.RUnlock()
+	return *preferred
+}
+
+func storePreferredURL(preferred *string, value string) {
+	if preferred == nil {
+		return
+	}
+
+	reportURLPreferenceMutex.Lock()
+	defer reportURLPreferenceMutex.Unlock()
+	*preferred = value
+}
+
+func prioritizeURLs(urls []string, preferred string) []string {
+	ordered := append([]string(nil), urls...)
+	if preferred == "" || len(ordered) < 2 {
+		return ordered
+	}
+
+	for i, targetURL := range ordered {
+		if targetURL == preferred {
+			if i > 0 {
+				ordered[0], ordered[i] = ordered[i], ordered[0]
+			}
+			break
+		}
+	}
+
+	return ordered
+}
+
+func postJSONWithFallback(ctx context.Context, urls []string, requestBody []byte, userAgent string, timeout time.Duration, preferred *string) (bool, error) {
+	if len(urls) == 0 {
+		return false, fmt.Errorf("上报URL未设置")
+	}
+
+	orderedURLs := prioritizeURLs(urls, loadPreferredURL(preferred))
+
+	var errs []string
+	for i, targetURL := range orderedURLs {
+		req, err := http.NewRequest("POST", targetURL, bytes.NewBuffer(requestBody))
+		if err != nil {
+			errs = append(errs, fmt.Sprintf("%s => 创建请求失败: %v", targetURL, err))
+			if i < len(orderedURLs)-1 {
+				fmt.Printf("⚠️ HTTP上报尝试失败，准备回退: %s => 创建请求失败: %v\n", targetURL, err)
+			}
+			continue
+		}
+
+		req.Header.Set("Content-Type", "application/json")
+		req.Header.Set("User-Agent", userAgent)
+
+		resp, err := reportDo(ctx, req, timeout)
+		if err != nil {
+			errs = append(errs, fmt.Sprintf("%s => 请求失败: %v", targetURL, err))
+			if i < len(orderedURLs)-1 {
+				fmt.Printf("⚠️ HTTP上报尝试失败，准备回退: %s => 请求失败: %v\n", targetURL, err)
+			}
+			continue
+		}
+
+		var responseBytes bytes.Buffer
+		_, readErr := responseBytes.ReadFrom(resp.Body)
+		resp.Body.Close()
+		if readErr != nil {
+			errs = append(errs, fmt.Sprintf("%s => 读取响应失败: %v", targetURL, readErr))
+			if i < len(orderedURLs)-1 {
+				fmt.Printf("⚠️ HTTP上报尝试失败，准备回退: %s => 读取响应失败: %v\n", targetURL, readErr)
+			}
+			continue
+		}
+
+		if resp.StatusCode != http.StatusOK {
+			errs = append(errs, fmt.Sprintf("%s => HTTP响应错误: %d %s", targetURL, resp.StatusCode, resp.Status))
+			if i < len(orderedURLs)-1 {
+				fmt.Printf("⚠️ HTTP上报尝试失败，准备回退: %s => HTTP响应错误: %d %s\n", targetURL, resp.StatusCode, resp.Status)
+			}
+			continue
+		}
+
+		responseText := strings.TrimSpace(responseBytes.String())
+		if responseText == "ok" {
+			if i > 0 {
+				fmt.Printf("↪️ HTTP上报已自动回退到: %s\n", targetURL)
+			}
+			storePreferredURL(preferred, targetURL)
+			return true, nil
+		}
+
+		errs = append(errs, fmt.Sprintf("%s => 服务器响应: %s (期望: ok)", targetURL, responseText))
+		if i < len(orderedURLs)-1 {
+			fmt.Printf("⚠️ HTTP上报尝试失败，准备回退: %s => 服务器响应: %s (期望: ok)\n", targetURL, responseText)
+		}
+	}
+
+	return false, fmt.Errorf("发送HTTP请求失败: %s", strings.Join(errs, " | "))
+}
+
 // sendBatchTrafficReport 批量发送多个服务的流量报告到HTTP接口
 func sendBatchTrafficReport(ctx context.Context, reportItems []TrafficReportItem) (bool, error) {
+	if httpReportURL == "" {
+		return false, fmt.Errorf("流量上报URL未设置")
+	}
+
 	jsonData, err := json.Marshal(reportItems)
 	if err != nil {
 		return false, fmt.Errorf("序列化报告数据失败: %v", err)
@@ -73,46 +258,16 @@ func sendBatchTrafficReport(ctx context.Context, reportItems []TrafficReportItem
 		requestBody = jsonData
 	}

-	req, err := http.NewRequestWithContext(ctx, "POST", httpReportURL, bytes.NewBuffer(requestBody))
-	if err != nil {
-		return false, fmt.Errorf("创建HTTP请求失败: %v", err)
-	}
-
-	req.Header.Set("Content-Type", "application/json")
-	req.Header.Set("User-Agent", "GOST-Traffic-Reporter/1.0")
-
-	client := &http.Client{
-		Timeout: 5 * time.Second,
-	}
-
-	resp, err := client.Do(req)
-	if err != nil {
-		return false, fmt.Errorf("发送HTTP请求失败: %v", err)
-	}
-	defer resp.Body.Close()
-
-	if resp.StatusCode != http.StatusOK {
-		return false, fmt.Errorf("HTTP响应错误: %d %s", resp.StatusCode, resp.Status)
-	}
-
-	// 读取响应内容
-	var responseBytes bytes.Buffer
-	_, err = responseBytes.ReadFrom(resp.Body)
-	if err != nil {
-		return false, fmt.Errorf("读取响应内容失败: %v", err)
-	}
-
-	responseText := strings.TrimSpace(responseBytes.String())
-
-	// 检查响应是否为"ok"
-	if responseText == "ok" {
-		return true, nil
-	} else {
-		return false, fmt.Errorf("服务器响应: %s (期望: ok)", responseText)
-	}
+	return postJSONWithFallback(
+		ctx,
+		strings.Split(httpReportURL, ","),
+		requestBody,
+		"GOST-Traffic-Reporter/1.0",
+		5*time.Second,
+		&preferredUploadURL,
+	)
 }

-
 // sendConfigReport 发送配置报告到HTTP接口
 func sendConfigReport(ctx context.Context) (bool, error) {
 	if configReportURL == "" {
@@ -150,43 +305,14 @@ func sendConfigReport(ctx context.Context) (bool, error) {
 		requestBody = configData
 	}

-	req, err := http.NewRequestWithContext(ctx, "POST", configReportURL, bytes.NewBuffer(requestBody))
-	if err != nil {
-		return false, fmt.Errorf("创建HTTP请求失败: %v", err)
-	}
-
-	req.Header.Set("Content-Type", "application/json")
-	req.Header.Set("User-Agent", "Config-Reporter/1.0")
-
-	client := &http.Client{
-		Timeout: 10 * time.Second, // 配置上报可以稍长一些
-	}
-
-	resp, err := client.Do(req)
-	if err != nil {
-		return false, fmt.Errorf("发送HTTP请求失败: %v", err)
-	}
-	defer resp.Body.Close()
-
-	if resp.StatusCode != http.StatusOK {
-		return false, fmt.Errorf("HTTP响应错误: %d %s", resp.StatusCode, resp.Status)
-	}
-
-	// 读取响应内容
-	var responseBytes bytes.Buffer
-	_, err = responseBytes.ReadFrom(resp.Body)
-	if err != nil {
-		return false, fmt.Errorf("读取响应内容失败: %v", err)
-	}
-
-	responseText := strings.TrimSpace(responseBytes.String())
-
-	// 检查响应是否为"ok"
-	if responseText == "ok" {
-		return true, nil
-	} else {
-		return false, fmt.Errorf("服务器响应: %s (期望: ok)", responseText)
-	}
+	return postJSONWithFallback(
+		ctx,
+		strings.Split(configReportURL, ","),
+		requestBody,
+		"Config-Reporter/1.0",
+		10*time.Second,
+		&preferredConfigURL,
+	)
 }

 // StartConfigReporter 启动配置定时上报器（每10分钟上报一次）
@@ -0,0 +1,150 @@
+package service
+
+import (
+	"context"
+	"errors"
+	"io"
+	"net/http"
+	"strings"
+	"testing"
+	"time"
+)
+
+func TestBuildReportURLCandidatesSecureFirst(t *testing.T) {
+	upload, config := buildReportURLCandidates("panel.example.com:443", "abc")
+
+	if len(upload) != 2 {
+		t.Fatalf("expected 2 upload candidates, got %d", len(upload))
+	}
+	if len(config) != 2 {
+		t.Fatalf("expected 2 config candidates, got %d", len(config))
+	}
+
+	if upload[0] != "https://panel.example.com:443/flow/upload?secret=abc" {
+		t.Fatalf("unexpected upload[0]: %s", upload[0])
+	}
+	if upload[1] != "http://panel.example.com:443/flow/upload?secret=abc" {
+		t.Fatalf("unexpected upload[1]: %s", upload[1])
+	}
+	if config[0] != "https://panel.example.com:443/flow/config?secret=abc" {
+		t.Fatalf("unexpected config[0]: %s", config[0])
+	}
+	if config[1] != "http://panel.example.com:443/flow/config?secret=abc" {
+		t.Fatalf("unexpected config[1]: %s", config[1])
+	}
+}
+
+func TestBuildReportURLCandidatesNormalizeSchemeAddr(t *testing.T) {
+	upload, config := buildReportURLCandidates("https://panel.example.com:8443/path", "abc")
+
+	if upload[0] != "https://panel.example.com:8443/flow/upload?secret=abc" {
+		t.Fatalf("unexpected upload[0]: %s", upload[0])
+	}
+	if upload[1] != "http://panel.example.com:8443/flow/upload?secret=abc" {
+		t.Fatalf("unexpected upload[1]: %s", upload[1])
+	}
+	if config[0] != "https://panel.example.com:8443/flow/config?secret=abc" {
+		t.Fatalf("unexpected config[0]: %s", config[0])
+	}
+	if config[1] != "http://panel.example.com:8443/flow/config?secret=abc" {
+		t.Fatalf("unexpected config[1]: %s", config[1])
+	}
+}
+
+func TestPostJSONWithFallbackUsesHTTPAfterHTTPSFailure(t *testing.T) {
+	orig := reportDo
+	defer func() { reportDo = orig }()
+
+	var calls []string
+	reportDo = func(_ context.Context, req *http.Request, _ time.Duration) (*http.Response, error) {
+		calls = append(calls, req.URL.String())
+		if strings.HasPrefix(req.URL.String(), "https://") {
+			return nil, errors.New("tls handshake failed")
+		}
+		return &http.Response{
+			StatusCode: http.StatusOK,
+			Body:       io.NopCloser(strings.NewReader("ok")),
+		}, nil
+	}
+
+	ok, err := postJSONWithFallback(
+		context.Background(),
+		[]string{
+			"https://panel.example.com:443/flow/upload?secret=abc",
+			"http://panel.example.com:443/flow/upload?secret=abc",
+		},
+		[]byte(`[]`),
+		"GOST-Traffic-Reporter/1.0",
+		5*time.Second,
+		nil,
+	)
+	if !ok || err != nil {
+		t.Fatalf("expected fallback success, ok=%v err=%v", ok, err)
+	}
+	if len(calls) != 2 {
+		t.Fatalf("expected 2 calls, got %d", len(calls))
+	}
+	if !strings.HasPrefix(calls[0], "https://") || !strings.HasPrefix(calls[1], "http://") {
+		t.Fatalf("unexpected call order: %#v", calls)
+	}
+}
+
+func TestPostJSONWithFallbackRemembersDetectedURL(t *testing.T) {
+	orig := reportDo
+	defer func() { reportDo = orig }()
+
+	targets := []string{
+		"https://panel.example.com:443/flow/upload?secret=abc",
+		"http://panel.example.com:443/flow/upload?secret=abc",
+	}
+
+	var preferred string
+	var calls []string
+	reportDo = func(_ context.Context, req *http.Request, _ time.Duration) (*http.Response, error) {
+		calls = append(calls, req.URL.String())
+		if strings.HasPrefix(req.URL.String(), "https://") {
+			return nil, errors.New("tls handshake failed")
+		}
+		return &http.Response{
+			StatusCode: http.StatusOK,
+			Body:       io.NopCloser(strings.NewReader("ok")),
+		}, nil
+	}
+
+	ok, err := postJSONWithFallback(
+		context.Background(),
+		targets,
+		[]byte(`[]`),
+		"GOST-Traffic-Reporter/1.0",
+		5*time.Second,
+		&preferred,
+	)
+	if !ok || err != nil {
+		t.Fatalf("expected first call success, ok=%v err=%v", ok, err)
+	}
+	if preferred != targets[1] {
+		t.Fatalf("expected preferred url to be remembered as %s, got %s", targets[1], preferred)
+	}
+	if len(calls) != 2 {
+		t.Fatalf("expected 2 calls on first attempt, got %d", len(calls))
+	}
+
+	calls = nil
+	ok, err = postJSONWithFallback(
+		context.Background(),
+		targets,
+		[]byte(`[]`),
+		"GOST-Traffic-Reporter/1.0",
+		5*time.Second,
+		&preferred,
+	)
+	if !ok || err != nil {
+		t.Fatalf("expected second call success, ok=%v err=%v", ok, err)
+	}
+	if len(calls) != 1 {
+		t.Fatalf("expected second call to use remembered url once, got %d calls", len(calls))
+	}
+	if !strings.HasPrefix(calls[0], "http://") {
+		t.Fatalf("expected remembered http url first, got %s", calls[0])
+	}
+}
@@ -97,20 +97,25 @@ const (
 )

 type WebSocketReporter struct {
-	url            string
-	addr           string // 保存服务器地址
-	secret         string // 保存密钥
-	version        string // 保存版本号
-	conn           *websocket.Conn
-	reconnectTime  time.Duration
-	pingInterval   time.Duration
-	configInterval time.Duration
-	ctx            context.Context
-	cancel         context.CancelFunc
-	connected      bool
-	connecting     bool              // 新增：正在连接状态
-	connMutex      sync.Mutex        // 新增：连接状态锁
-	aesCrypto      *crypto.AESCrypto // 新增：AES加密器
+	url               string
+	addr              string // 保存服务器地址
+	secret            string // 保存密钥
+	version           string // 保存版本号
+	preferredWSScheme string
+	conn              *websocket.Conn
+	reconnectTime     time.Duration
+	pingInterval      time.Duration
+	configInterval    time.Duration
+	ctx               context.Context
+	cancel            context.CancelFunc
+	connected         bool
+	connecting        bool              // 新增：正在连接状态
+	connMutex         sync.Mutex        // 新增：连接状态锁
+	aesCrypto         *crypto.AESCrypto // 新增：AES加密器
+}
+
+var wsDial = func(dialer *websocket.Dialer, rawURL string) (*websocket.Conn, *http.Response, error) {
+	return dialer.Dial(rawURL, nil)
 }

 // NewWebSocketReporter 创建一个新的WebSocket报告器
@@ -223,21 +228,14 @@ func (w *WebSocketReporter) connect() error {
 		json.Unmarshal(b, &cfg)
 	}

-	// 使用最新的配置重新构建 URL
-	currentURL := "ws://" + w.addr + "/system-info?type=1&secret=" + w.secret + "&version=" + w.version +
-		"&http=" + strconv.Itoa(cfg.Http) + "&tls=" + strconv.Itoa(cfg.Tls) + "&socks=" + strconv.Itoa(cfg.Socks)
-
-	u, err := url.Parse(currentURL)
-	if err != nil {
-		return fmt.Errorf("解析URL失败: %v", err)
-	}
+	candidates := buildWebSocketCandidates(w.addr, w.secret, w.version, cfg.Http, cfg.Tls, cfg.Socks, w.preferredWSScheme)

 	dialer := websocket.DefaultDialer
 	dialer.HandshakeTimeout = 10 * time.Second

-	conn, _, err := dialer.Dial(u.String(), nil)
+	conn, usedURL, err := dialWebSocketWithFallback(dialer, candidates)
 	if err != nil {
-		return fmt.Errorf("连接WebSocket失败: %v", err)
+		return err
 	}

 	// 如果在连接过程中已经有连接了，关闭新连接
@@ -248,6 +246,9 @@ func (w *WebSocketReporter) connect() error {

 	w.conn = conn
 	w.connected = true
+	if scheme := detectWebSocketScheme(usedURL); scheme != "" {
+		w.preferredWSScheme = scheme
+	}
 	_ = conn.SetReadDeadline(time.Now().Add(reporterReadWait))
 	conn.SetPingHandler(func(appData string) error {
 		_ = conn.SetReadDeadline(time.Now().Add(reporterReadWait))
@@ -265,10 +266,145 @@ func (w *WebSocketReporter) connect() error {
 		return nil
 	})

-	fmt.Printf("✅ WebSocket连接建立成功 (http=%d, tls=%d, socks=%d)\n", cfg.Http, cfg.Tls, cfg.Socks)
+	fmt.Printf("✅ WebSocket连接建立成功 (%s, http=%d, tls=%d, socks=%d)\n", sanitizeWebSocketURL(usedURL), cfg.Http, cfg.Tls, cfg.Socks)
 	return nil
 }

+func buildWebSocketCandidates(addr string, secret string, version string, http int, tls int, socks int, preferredScheme string) []string {
+	normalizedAddr, explicitScheme := normalizeReporterAddress(addr)
+	if normalizedAddr == "" {
+		normalizedAddr = strings.TrimSpace(addr)
+	}
+
+	query := "/system-info?type=1&secret=" + secret + "&version=" + version +
+		"&http=" + strconv.Itoa(http) + "&tls=" + strconv.Itoa(tls) + "&socks=" + strconv.Itoa(socks)
+
+	schemes := []string{"wss", "ws"}
+	if mappedScheme := mapToWebSocketScheme(explicitScheme); mappedScheme != "" {
+		if mappedScheme == "ws" {
+			schemes = []string{"ws", "wss"}
+		}
+	} else if preferredScheme == "ws" {
+		schemes = []string{"ws", "wss"}
+	}
+
+	return []string{
+		schemes[0] + "://" + normalizedAddr + query,
+		schemes[1] + "://" + normalizedAddr + query,
+	}
+}
+
+func normalizeReporterAddress(addr string) (string, string) {
+	raw := strings.TrimSpace(addr)
+	if raw == "" {
+		return "", ""
+	}
+
+	scheme := ""
+	if idx := strings.Index(raw, "://"); idx > 0 {
+		scheme = strings.ToLower(strings.TrimSpace(raw[:idx]))
+		if parsed, err := url.Parse(raw); err == nil {
+			if host := strings.TrimSpace(parsed.Host); host != "" {
+				return host, scheme
+			}
+		}
+		raw = raw[idx+3:]
+	}
+
+	if idx := strings.IndexAny(raw, "/?#"); idx >= 0 {
+		raw = raw[:idx]
+	}
+	return strings.TrimSpace(raw), scheme
+}
+
+func mapToWebSocketScheme(scheme string) string {
+	switch strings.ToLower(strings.TrimSpace(scheme)) {
+	case "wss", "https":
+		return "wss"
+	case "ws", "http":
+		return "ws"
+	default:
+		return ""
+	}
+}
+
+func detectWebSocketScheme(rawURL string) string {
+	if strings.HasPrefix(rawURL, "wss://") {
+		return "wss"
+	}
+	if strings.HasPrefix(rawURL, "ws://") {
+		return "ws"
+	}
+	return ""
+}
+
+func dialWebSocketWithFallback(dialer *websocket.Dialer, candidates []string) (*websocket.Conn, string, error) {
+	if len(candidates) == 0 {
+		return nil, "", fmt.Errorf("WebSocket候选地址为空")
+	}
+
+	var errs []string
+	for i, targetURL := range candidates {
+		conn, resp, err := wsDial(dialer, targetURL)
+		if err == nil {
+			if i > 0 {
+				fmt.Printf("↪️ WebSocket已自动回退成功: %s\n", sanitizeWebSocketURL(targetURL))
+			}
+			return conn, targetURL, nil
+		}
+		errMsg := formatWebSocketDialError(err, resp)
+		errs = append(errs, fmt.Sprintf("%s => %s", sanitizeWebSocketURL(targetURL), errMsg))
+		if i < len(candidates)-1 {
+			fmt.Printf(
+				"⚠️ WebSocket连接失败，准备从 %s 回退到 %s: %s\n",
+				strings.ToUpper(detectWebSocketScheme(targetURL)),
+				strings.ToUpper(detectWebSocketScheme(candidates[i+1])),
+				errMsg,
+			)
+		}
+	}
+
+	return nil, "", fmt.Errorf("连接WebSocket失败（已尝试%d种协议）: %s", len(candidates), strings.Join(errs, " | "))
+}
+
+func sanitizeWebSocketURL(rawURL string) string {
+	u, err := url.Parse(rawURL)
+	if err != nil {
+		return rawURL
+	}
+
+	q := u.Query()
+	if q.Get("secret") != "" {
+		q.Set("secret", "***")
+		u.RawQuery = q.Encode()
+	}
+	return u.String()
+}
+
+func formatWebSocketDialError(err error, resp *http.Response) string {
+	if err == nil {
+		return ""
+	}
+	if resp == nil {
+		return err.Error()
+	}
+
+	msg := fmt.Sprintf("%s (HTTP %s)", err, resp.Status)
+	if resp.Body == nil {
+		return msg
+	}
+
+	body, readErr := io.ReadAll(io.LimitReader(resp.Body, 256))
+	if readErr != nil {
+		return msg
+	}
+	bodyText := strings.TrimSpace(string(body))
+	if bodyText == "" {
+		return msg
+	}
+	return fmt.Sprintf("%s, body=%q", msg, bodyText)
+}
+
 // handleConnection 处理WebSocket连接
 func (w *WebSocketReporter) handleConnection() {
 	defer func() {
@@ -1290,7 +1426,8 @@ func getMemoryInfo() MemoryInfo {
 func StartWebSocketReporterWithConfig(addr string, secret string, http int, tls int, socks int, version string) *WebSocketReporter {

 	// 构建初始 WebSocket URL
-	fullURL := "ws://" + addr + "/system-info?type=1&secret=" + secret + "&version=" + version + "&http=" + strconv.Itoa(http) + "&tls=" + strconv.Itoa(tls) + "&socks=" + strconv.Itoa(socks)
+	candidates := buildWebSocketCandidates(addr, secret, version, http, tls, socks, "")
+	fullURL := candidates[0]

 	fmt.Printf("🔗 WebSocket连接URL: %s\n", fullURL)

@@ -0,0 +1,127 @@
+package socket
+
+import (
+	"errors"
+	"io"
+	"net/http"
+	"strings"
+	"testing"
+
+	"github.com/gorilla/websocket"
+)
+
+func TestBuildWebSocketCandidatesSecureFirst(t *testing.T) {
+	candidates := buildWebSocketCandidates("panel.example.com:443", "abc", "2.0.2", 1, 0, 1, "")
+
+	if len(candidates) != 2 {
+		t.Fatalf("expected 2 candidates, got %d", len(candidates))
+	}
+	if !strings.HasPrefix(candidates[0], "wss://") {
+		t.Fatalf("expected first candidate to start with wss://, got %s", candidates[0])
+	}
+	if !strings.HasPrefix(candidates[1], "ws://") {
+		t.Fatalf("expected second candidate to start with ws://, got %s", candidates[1])
+	}
+}
+
+func TestBuildWebSocketCandidatesUsesPreferredScheme(t *testing.T) {
+	candidates := buildWebSocketCandidates("panel.example.com:443", "abc", "2.0.2", 1, 0, 1, "ws")
+
+	if len(candidates) != 2 {
+		t.Fatalf("expected 2 candidates, got %d", len(candidates))
+	}
+	if !strings.HasPrefix(candidates[0], "ws://") {
+		t.Fatalf("expected preferred ws:// candidate first, got %s", candidates[0])
+	}
+	if !strings.HasPrefix(candidates[1], "wss://") {
+		t.Fatalf("expected fallback wss:// candidate second, got %s", candidates[1])
+	}
+}
+
+func TestBuildWebSocketCandidatesNormalizesSchemePrefixedAddr(t *testing.T) {
+	candidates := buildWebSocketCandidates("https://panel.example.com:443/path?q=1", "abc", "2.0.2", 0, 0, 0, "")
+
+	if len(candidates) != 2 {
+		t.Fatalf("expected 2 candidates, got %d", len(candidates))
+	}
+	if !strings.HasPrefix(candidates[0], "wss://panel.example.com:443/") {
+		t.Fatalf("expected normalized wss candidate, got %s", candidates[0])
+	}
+	if !strings.HasPrefix(candidates[1], "ws://panel.example.com:443/") {
+		t.Fatalf("expected normalized ws fallback candidate, got %s", candidates[1])
+	}
+}
+
+func TestDialWebSocketWithFallbackTriesWSAfterWSSFailure(t *testing.T) {
+	orig := wsDial
+	defer func() { wsDial = orig }()
+
+	var attempts []string
+	wsDial = func(_ *websocket.Dialer, rawURL string) (*websocket.Conn, *http.Response, error) {
+		attempts = append(attempts, rawURL)
+		if strings.HasPrefix(rawURL, "wss://") {
+			return nil, nil, errors.New("tls failed")
+		}
+		return &websocket.Conn{}, nil, nil
+	}
+
+	_, usedURL, err := dialWebSocketWithFallback(
+		&websocket.Dialer{},
+		[]string{
+			"wss://panel.example.com/system-info?type=1&secret=abc",
+			"ws://panel.example.com/system-info?type=1&secret=abc",
+		},
+	)
+	if err != nil {
+		t.Fatalf("expected fallback success, got err=%v", err)
+	}
+	if !strings.HasPrefix(usedURL, "ws://") {
+		t.Fatalf("expected fallback ws:// url, got %s", usedURL)
+	}
+	if len(attempts) != 2 {
+		t.Fatalf("expected 2 attempts, got %d", len(attempts))
+	}
+	if !strings.HasPrefix(attempts[0], "wss://") || !strings.HasPrefix(attempts[1], "ws://") {
+		t.Fatalf("unexpected attempt order: %#v", attempts)
+	}
+}
+
+func TestDetectWebSocketScheme(t *testing.T) {
+	if detectWebSocketScheme("wss://panel.example.com/system-info") != "wss" {
+		t.Fatalf("expected wss detection")
+	}
+	if detectWebSocketScheme("ws://panel.example.com/system-info") != "ws" {
+		t.Fatalf("expected ws detection")
+	}
+	if detectWebSocketScheme("http://panel.example.com/system-info") != "" {
+		t.Fatalf("expected empty detection for non-websocket scheme")
+	}
+}
+
+func TestSanitizeWebSocketURL(t *testing.T) {
+	raw := "wss://panel.example.com/system-info?type=1&secret=abc&version=2.0.2"
+	sanitized := sanitizeWebSocketURL(raw)
+
+	if strings.Contains(sanitized, "secret=abc") {
+		t.Fatalf("expected secret to be masked, got %s", sanitized)
+	}
+	if !strings.Contains(sanitized, "secret=%2A%2A%2A") {
+		t.Fatalf("expected masked secret in url, got %s", sanitized)
+	}
+}
+
+func TestFormatWebSocketDialErrorIncludesHTTPStatus(t *testing.T) {
+	err := errors.New("websocket: bad handshake")
+	resp := &http.Response{
+		Status: "403 Forbidden",
+		Body:   io.NopCloser(strings.NewReader("forbidden")),
+	}
+
+	msg := formatWebSocketDialError(err, resp)
+	if !strings.Contains(msg, "HTTP 403 Forbidden") {
+		t.Fatalf("expected status in message, got %s", msg)
+	}
+	if !strings.Contains(msg, "forbidden") {
+		t.Fatalf("expected response body in message, got %s", msg)
+	}
+}
@@ -30,6 +30,8 @@ nav:
  - 首页: index.md
  - 安装部署: install.md
  - 使用指南: usage.md
+  - AI Skill 接入: ai-skill.md
+  - PostgreSQL: postgresql.md
  - 常见问题: faq.md

 markdown_extensions:
@@ -0,0 +1,15 @@
+# 001 Fix 211 ConnectIP Full Chain
+
+## Checklist
+
+- [x] Analyze connectIp/inIp full chain across diagnosis/runtime/redeploy paths.
+- [x] Fix diagnosis target resolution to honor selected `connectIp` for chain hops.
+- [x] Fix tunnel state reconstruction to preserve `connectIp` on chain/out nodes.
+- [x] Add contract regression tests for normal + stream diagnosis target IP behavior.
+- [x] Add handler regression test for redeploy state reconstruction preserving `connectIp`.
+- [x] Run backend handler and contract test suites.
+
+## Notes
+
+- Diagnosis now uses `chain_tunnel.connect_ip` for both stream start preview and runtime probing.
+- Redeploy/batch-redeploy no longer drops `connectIp` during `reconstructTunnelState`.
@@ -0,0 +1,7 @@
+- [x] Review current forward import flow and confirm ny import uses tunnel selection
+- [x] Define ny compatibility update with tunnel-first behavior and auto port assignment fallback
+- [x] Update ny parser to accept alias fields and optional `listen_port`
+- [x] Keep import execution bound to selected tunnel and remove entry-selection dependency from ux copy
+- [x] Update ny import help text to document optional port auto assignment
+- [x] Add parser tests for alias-field compatibility and missing-port auto assignment
+- [x] Validate updated import parser tests locally
@@ -0,0 +1,11 @@
+# 003 Forward Edit Bind IP Preserve
+
+## Checklist
+
+- [x] Confirm forward edit flow and identify why untouched listen IP gets overwritten.
+- [x] Update frontend forward edit submit logic to only send `inIp` when user explicitly changes listen IP.
+- [x] On tunnel switch in edit form, reset listen IP to default unless user reselects.
+- [x] Update backend forward update logic to preserve existing `forward_port.in_ip` when request omits `inIp` and tunnel is unchanged.
+- [x] Keep backend behavior explicit: if `inIp` is sent (including empty), apply requested value; if tunnel changed with no `inIp`, use default bind.
+- [x] Add regression tests for preserved bind-IP reconstruction helper behavior.
+- [x] Run focused frontend/backend checks for touched files.
@@ -0,0 +1,11 @@
+# 004 Forward Explicit Bind Self-Occupy Release
+
+## Checklist
+
+- [x] Confirm current forward edit/save failure path and lock strategy: explicit bind always stays explicit.
+- [x] Add repository query to detect whether a node+port is occupied by other forwards (excluding current forward).
+- [x] Enhance forward service sync to treat address-in-use as a recoverable case when only self occupies the port.
+- [x] On self-occupy conflict, proactively delete current forward services on target node and retry AddService.
+- [x] Keep hard failure when the same node+port is occupied by other forwards.
+- [x] Add focused unit tests for new error classification helpers.
+- [x] Run focused backend tests for touched handler/repo packages.
@@ -0,0 +1,11 @@
+# 005 Forward Invalid BindIP Fallback Default
+
+## Checklist
+
+- [x] Split forward service bind failures into address-in-use and cannot-assign classes.
+- [x] Keep self-occupy release/rebind only for address-in-use conflicts.
+- [x] Add fallback path for cannot-assign: switch to default listener bind and retry service creation.
+- [x] Persist fallback result to DB by clearing `forward_port.in_ip` for affected node+port.
+- [x] Return non-blocking warning in forward update response when fallback occurs.
+- [x] Show warning toast in forward edit UI while still treating operation as success.
+- [x] Run focused backend tests for touched handler/repo packages.
@@ -0,0 +1,8 @@
+# 006 Forward Save Missing Speed Limit Auto Clear
+
+## Checklist
+
+- [x] Locate forward create/update speed limit validation path that blocks save when speed rule is deleted.
+- [x] Change forward save behavior to auto-clear missing `speedId` instead of returning "限速规则不存在".
+- [x] Add contract test coverage for editing a forward after its referenced speed limit is deleted.
+- [x] Run focused contract tests for forward save behavior.
@@ -0,0 +1,8 @@
+# 007 User Tunnel Save Missing Speed Limit Auto Clear
+
+## Checklist
+
+- [x] Locate user tunnel speed limit validation paths for assign/update flows.
+- [x] Change user tunnel save behavior to auto-clear missing `speedId` instead of failing.
+- [x] Add contract test coverage for user tunnel save when referenced speed limit is deleted.
+- [x] Run focused contract tests for user tunnel save behavior.
@@ -0,0 +1,8 @@
+# 008 Frontend Missing Speed Limit Consistency
+
+## Checklist
+
+- [x] Review forward and user tunnel submit flows for missing speed limit behavior.
+- [x] Make frontend normalize deleted `speedId` to `null` before submit in both pages.
+- [x] Add consistent non-blocking warning toast when deleted speed rule is auto-cleared.
+- [x] Verify touched frontend files pass lint checks.
@@ -0,0 +1,112 @@
+# 009: 普通用户转发权限限制
+
+## 背景
+
+当前系统允许普通用户在创建和编辑转发时设置：
+1. **限速规则** (`speedId`) - 应仅限管理员设置
+2. **自定义入口端口** (`inPort`) - 应仅限管理员设置
+
+普通用户应只能使用系统自动分配的端口和默认不限速设置。
+
+## 实施范围
+
+| 操作 | 普通用户 | 管理员 |
+|------|----------|--------|
+| 创建转发 - 设置限速 | 禁止 | 允许 |
+| 创建转发 - 自定义端口 | 禁止 | 允许 |
+| 编辑转发 - 修改限速 | 禁止 | 允许 |
+| 编辑转发 - 修改端口 | 禁止 | 允许 |
+
+## 修改位置
+
+### 后端 (Go)
+
+**文件**: `go-backend/internal/http/handler/mutations.go`
+
+#### 1. `forwardCreate` handler (行 1147-1157)
+
+在处理 speedId 和 inPort 之前添加权限检查：
+
+```go
+if roleID != 0 {
+    if _, ok := req["speedId"]; ok {
+        response.WriteJSON(w, response.Err(-1, "普通用户无法设置限速规则"))
+        return
+    }
+    if _, ok := req["inPort"]; ok {
+        response.WriteJSON(w, response.Err(-1, "普通用户无法设置自定义端口"))
+        return
+    }
+}
+```
+
+#### 2. `forwardUpdate` handler (行 1264-1274)
+
+在处理 speedId 和 inPort 之前添加权限检查：
+
+```go
+if actorRole != 0 {
+    if _, ok := req["speedId"]; ok {
+        response.WriteJSON(w, response.Err(-1, "普通用户无法修改限速规则"))
+        return
+    }
+    if _, ok := req["inPort"]; ok {
+        response.WriteJSON(w, response.Err(-1, "普通用户无法修改自定义端口"))
+        return
+    }
+}
+```
+
+### 前端 (React/TypeScript)
+
+**文件**: `vite-frontend/src/pages/forward.tsx`
+
+已有变量 `isAdmin` (行 610: `const isAdmin = tokenRoleId === 0;`)
+
+#### 1. 隐藏限速规则选择器 (行 4252-4282)
+
+用条件渲染包裹：
+
+```tsx
+{isAdmin && (
+  <Select
+    label="限速规则"
+    // ... 现有属性
+  >
+    {/* ... */}
+  </Select>
+)}
+```
+
+#### 2. 隐藏入口端口输入框 (行 4311-4328)
+
+用条件渲染包裹：
+
+```tsx
+{isAdmin && (
+  <Input
+    description="指定入口端口，留空则从节点可用端口中自动分配"
+    // ... 现有属性
+  />
+)}
+```
+
+## 任务清单
+
+- [x] 后端: `forwardCreate` 添加权限检查
+- [x] 后端: `forwardUpdate` 添加权限检查
+- [x] 前端: 隐藏限速规则选择器 (仅管理员可见)
+- [x] 前端: 隐藏入口端口输入框 (仅管理员可见)
+- [x] 后端: 添加契约测试验证权限限制
+- [x] 运行测试验证
+
+## 测试验证
+
+1. ✅ 契约测试已添加 `TestNonAdminCannotSetSpeedIdOrPort`
+2. ✅ 所有测试用例通过：
+   - 普通用户创建转发时设置 speedId 被拒绝
+   - 普通用户创建转发时设置 inPort 被拒绝
+   - 普通用户创建转发时不设置 speedId/inPort 成功
+   - 普通用户更新转发时设置 speedId 被拒绝
+   - 普通用户更新转发时设置 inPort 被拒绝
+   - 普通用户更新转发时不设置 speedId/inPort 成功
@@ -0,0 +1,97 @@
+# 010 多入口/多出口/多跳自定义 IP 限制与回归
+
+## 目标
+- 修复多入口转发列表只显示一个入口地址的问题。
+- 在 UI 和后端同时限制以下场景的自定义 IP：
+  - 多入口转发禁止自定义监听 IP（`inIp`）。
+  - 多出口隧道禁止自定义连接 IP（`connectIp`）。
+  - 转发链单跳多节点禁止自定义连接 IP（`connectIp`）。
+
+## 范围说明（基于当前实际）
+- 不改“隧道页面入口 IP 文本域”的行为（按确认：该字段是展示用途，不作为本次约束点）。
+- 本次仅覆盖已落地代码与可复现验证项。
+
+## Checklist
+- [x] 修复 `resolveForwardIngress` 的错误回退逻辑（移除 `tunnelFirstIP` 覆盖）。
+- [x] 前端转发页：多入口隧道禁用“监听IP”选择并显示提示。
+- [x] 前端隧道页：多出口禁用“连接IP”选择并显示提示。
+- [x] 前端隧道页：转发链单跳多节点禁用“连接IP”选择并显示提示。
+- [x] 后端隧道创建/编辑增加 `connectIp` 约束校验（多出口、多节点跳）。
+- [x] 后端转发创建/编辑增加 `inIp` 约束校验（多入口）。
+- [x] 后端构建验证通过。
+- [x] 前端构建验证通过。
+- [x] 相关定向合约测试通过（forward/tunnel）。
+- [x] 全量 contract 测试执行并记录结果（存在与本次改动无关的既有失败）。
+- [ ] 数据迁移脚本（可选）：将历史多入口/多出口/多节点的自定义 IP 清理为默认值。
+
+## 实施记录
+
+### 代码变更
+- `go-backend/internal/store/repo/repository.go`
+  - 在 `resolveForwardIngress` 中移除 `tunnelFirstIP` 逻辑。
+  - `in_ip` 为空时回退到每个入口节点自身 `server_ip`，避免多入口被合并为单入口展示。
+
+- `vite-frontend/src/pages/forward.tsx`
+  - 新增 `isCurrentTunnelMultiEntrance` 判断。
+  - 多入口时禁用“监听IP”Select，并展示“多入口隧道使用节点默认IP”。
+
+- `vite-frontend/src/pages/tunnel.tsx`
+  - 转发链区域新增 `isMultiNodeGroup`，单跳多节点时禁用连接 IP 选择。
+  - 出口区域新增 `isMultiExit`，多出口时禁用连接 IP 选择。
+
+- `go-backend/internal/http/handler/mutations.go`
+  - `tunnelCreate` / `tunnelUpdate` 调用 `validateTunnelConnectIPConstraints(req)`。
+  - 新增 `validateTunnelConnectIPConstraints`：
+    - 多出口+自定义 `connectIp` 拒绝。
+    - 转发链单跳多节点+自定义 `connectIp` 拒绝。
+  - `forwardCreate` / `forwardUpdate`：多入口+自定义 `inIp` 拒绝。
+
+## 验证记录
+
+### 1) 后端构建
+```bash
+cd go-backend
+go build ./internal/http/handler/...
+```
+结果：通过。
+
+### 2) 前端构建
+```bash
+cd vite-frontend
+npm run build
+```
+结果：通过。
+
+### 3) 后端包测试
+```bash
+cd go-backend
+go test ./internal/store/repo/...
+go test ./internal/http/handler/...
+```
+结果：通过。
+
+### 4) 定向合约测试（forward/tunnel）
+```bash
+cd go-backend
+go test ./tests/contract/... -run "TestForward.*|TestTunnel.*"
+```
+结果：通过。
+
+### 5) 全量合约测试（记录）
+```bash
+cd go-backend
+go test ./tests/contract/...
+```
+结果：所有测试通过。
+
+### 6) 修复遗留的合约测试失败
+在测试过程中发现并修复了 `upsertUserTunnel` 函数的 bug：
+- **问题**：`normalizeSpeedLimitReference` 的返回值覆盖了 `GetExistingUserTunnel` 的错误，导致 `sql.ErrNoRows` 判断失效。
+- **修复**：将 `GetExistingUserTunnel` 的错误保存到 `lookupErr` 变量，避免被后续调用覆盖。
+- **影响范围**：仅影响 `userTunnelBatchAssign` 路径，不影响其他功能。
+- **验证**：两个失败的测试（`TestUserTunnelReassignmentKeepsStableID`、`TestBatchAssignInsertRollbackWhenLimiterDispatchFailsContract`）现在都通过。
+
+## 完成状态
+- 本计划按当前实际范围已完成。
+- 所有合约测试通过（14/14）。
+- 任务 10（数据迁移）已纳入计划，当前为可选项，默认不执行。
@@ -0,0 +1,28 @@
+# 011 转发服务名升级兼容与节点滚动升级
+
+## 目标
+- 修复旧版本升级后编辑转发/隧道出现 `service not found`（service不存在）的问题。
+- 在后端加入兼容自愈逻辑，允许旧命名与新命名共存过渡。
+- 给出低风险节点升级顺序，避免一次性全量切换带来的中断。
+
+## Checklist
+- [x] 定位回归路径：服务名从 `forward_user_0` 迁移到真实 `user_tunnel_id` 后，与旧运行态不一致导致控制失败。
+- [x] 在 `UpdateService` 的兼容路径加入旧服务清理后重建逻辑。
+- [x] 在 `Pause/Resume` 控制路径加入首次 not found 后自愈重试逻辑。
+- [x] 增加回归测试覆盖兼容行为。
+- [x] 执行 `go-backend` 相关测试并记录结果。
+- [x] 输出运维侧“后端先行 + agent 灰度升级 + 批量重部署”操作步骤。
+
+## 变更说明（实施中）
+- 后端控制面将在检测到升级期的服务名不一致时进行自动自愈，降低人工干预和手工重建成本。
+
+## 测试记录
+- 命令：`cd go-backend && go test ./internal/http/handler/...`
+- 结果：通过。
+
+## 运维升级顺序（推荐）
+1. 先发布本次后端兼容补丁（无需等待所有 agent 同步升级）。
+2. 按 10%-20% 灰度分批升级 agent（低风险节点 -> 非高峰节点 -> 全量）。
+3. 每批升级后执行一次“转发批量重部署”，将运行态统一到新服务命名。
+4. 观察日志中 `service .* not found` 是否清零，再推进下一批。
+5. 全量稳定后保留兼容逻辑至少一个小版本周期，再评估收敛。
@@ -0,0 +1,158 @@
+# Plan 012: 允许用户自定义转发入口端口（限制在节点端口范围内）
+
+**Issue**: #268  
+**状态**: 已完成
+
+## 背景
+
+当前版本限制了普通用户自定义转发入口端口 (inPort) 的能力，导致：
+- 用户迁移数据后无法保留原有端口配置
+- 无法编辑转发配置
+- 需要重建所有转发，操作繁琐
+
+## 实现方案
+
+允许用户和管理员自定义转发入口端口，但强制在节点端口设置的范围内。
+
+### 默认行为
+- 不填写端口 → 随机分配（在端口范围内）
+- 填写端口 → 使用指定端口（需在范围内且不冲突）
+
+---
+
+## 任务清单
+
+### 1. 后端修改
+
+- [x] **1.1 移除非管理员 inPort 权限限制**
+  - 文件: `go-backend/internal/http/handler/mutations.go`
+  - 位置: `forwardCreate` 函数 (约 L1156-1167)
+  - 位置: `forwardUpdate` 函数 (约 L1279-1291)
+  - 操作: 删除 `roleID != 0` 时阻止 inPort 设置的逻辑
+  - 状态: 代码中已无 inPort 权限限制
+
+- [x] **1.2 添加本地节点端口范围验证函数**
+  - 文件: `go-backend/internal/http/handler/mutations.go`
+  - 新增函数: `validateLocalNodePort(node *nodeRecord, port int) error`
+  - 逻辑: 使用 `parsePortRangeSpec` 解析端口范围，验证 port 是否在范围内
+  - 状态: 函数已存在于 L3517-3533
+
+- [x] **1.3 修改 forwardCreate 端口验证**
+  - 文件: `go-backend/internal/http/handler/mutations.go`
+  - 位置: `forwardCreate` 中 entry nodes 遍历处 (约 L1188-1197)
+  - 操作: 
+    - 对远程节点使用现有 `validateRemoteNodePort`
+    - 对本地节点使用新的 `validateLocalNodePort`
+    - 若用户指定的端口超出节点范围，返回错误提示
+  - 状态: 已实现
+
+- [x] **1.4 修改 forwardUpdate 端口验证**
+  - 文件: `go-backend/internal/http/handler/mutations.go`
+  - 位置: `forwardUpdate` 中 entry nodes 遍历处 (约 L1326-1335)
+  - 操作: 同 1.3，添加本地节点端口范围验证
+  - 状态: 已实现
+
+- [x] **1.5 `ListUserAccessibleTunnels` 添加端口范围信息**
+  - 文件: `go-backend/internal/store/repo/repository.go`
+  - 位置: L751-775
+  - 操作:
+    - 查询隧道关联的入口节点 (通过 `chain_tunnel` 表 `chain_type=1`)
+    - 获取入口节点的端口范围 (`node.port` 字段)
+    - 使用 `parsePortRangeSpec` 解析并计算 min/max
+    - 在返回的 map 中添加 `portRangeMin` 和 `portRangeMax` 字段
+  - 状态: 已实现
+
+- [x] **1.6 `ListEnabledTunnelSummaries` 添加端口范围信息**
+  - 文件: `go-backend/internal/store/repo/repository.go`
+  - 位置: L777-796
+  - 操作: 同 1.5，为管理员视图也提供端口范围信息
+  - 状态: 已实现
+
+### 2. 前端修改
+
+- [x] **2.1 为所有用户显示 inPort 输入框**
+  - 文件: `vite-frontend/src/pages/forward.tsx`
+  - 位置: 约 L4350-4369
+  - 操作: 移除 `{isAdmin && (` 条件包装，改为所有用户可见
+  - 状态: 已实现
+
+- [x] **2.2 提交时包含 inPort（非仅管理员）**
+  - 文件: `vite-frontend/src/pages/forward.tsx`
+  - 位置: `handleSave` 函数 (约 L1435, L1447)
+  - 操作: 移除 `...(isAdmin ? { inPort: form.inPort } : {})` 条件，直接包含 inPort
+  - 状态: 已实现
+
+- [x] **2.3 更新 Tunnel 接口添加 portRangeMin/Max**
+  - 文件: `vite-frontend/src/pages/forward.tsx`
+  - 位置: L123-131
+  - 操作: 添加 `portRangeMin?: number; portRangeMax?: number;`
+  - 状态: 已实现
+
+- [x] **2.4 inPort 输入框显示端口范围提示**
+  - 文件: `vite-frontend/src/pages/forward.tsx`
+  - 位置: L4350-4369
+  - 操作: 
+    - 基于 `form.tunnelId` 获取当前隧道的端口范围
+    - 在 Input 的 `description` 中显示提示，如: `"指定入口端口，留空自动分配 (允许范围: 10000-20000)"`
+  - 状态: 已实现
+
+- [x] **2.5 前端端口范围验证**
+  - 文件: `vite-frontend/src/pages/forward.tsx`
+  - 位置: 验证函数 (L1271-1279)
+  - 操作: 前端也做范围预检查，超出范围时显示错误
+  - 状态: 已实现并修复语法错误
+
+### 3. 测试修改
+
+- [x] **3.1 更新权限测试**
+  - 文件: `go-backend/tests/contract/forward_contract_test.go`
+  - 位置: L1001-1119
+  - 操作:
+    - 修改 "non-admin cannot set inPort" 测试为允许设置
+    - 新增 "non-admin inPort within range" 测试（通过）
+    - 新增 "non-admin inPort out of range" 测试（失败）
+  - 状态: 已更新
+
+- [x] **3.2 新增端口范围验证测试**
+  - 文件: `go-backend/tests/contract/forward_contract_test.go`
+  - 操作:
+    - 测试本地节点端口范围验证
+    - 测试远程节点端口范围验证（已有 `validateRemoteNodePort` 相关测试可参考）
+  - 状态: 已添加
+
+---
+
+## 关键代码位置
+
+| 功能 | 文件 | 行号 |
+|------|------|------|
+| 前端 inPort 输入框 | `vite-frontend/src/pages/forward.tsx` | L4350-4369 |
+| 前端提交条件 | `vite-frontend/src/pages/forward.tsx` | L1435, L1447 |
+| 后端创建权限检查 | `go-backend/internal/http/handler/mutations.go` | L1156-1167 |
+| 后端更新权限检查 | `go-backend/internal/http/handler/mutations.go` | L1279-1291 |
+| 远程节点端口验证 | `go-backend/internal/http/handler/federation.go` | L562-574 |
+| 本地节点端口验证 | `go-backend/internal/http/handler/mutations.go` | L3517-3533 |
+| 端口范围解析 | `go-backend/internal/store/repo/repository_mutations.go` | L1370-1412 |
+| 用户隧道列表 | `go-backend/internal/store/repo/repository.go` | L751-775 |
+| 管理员隧道列表 | `go-backend/internal/store/repo/repository.go` | L777-796 |
+| 合约测试 | `go-backend/tests/contract/forward_contract_test.go` | L1001-1119 |
+
+---
+
+## 验收标准
+
+1. ✅ 普通用户可以在创建转发时指定 inPort
+2. ✅ 普通用户可以在编辑转发时修改 inPort
+3. ✅ 指定的端口必须在节点端口范围内，否则返回错误
+4. ✅ 留空 inPort 时行为不变（自动分配）
+5. ✅ 前端显示端口范围提示
+6. ✅ 所有合约测试通过
+
+---
+
+## 实施总结
+
+该计划的大部分代码已在之前的开发中实现。本次实施主要完成了以下工作：
+
+1. **修复前端验证代码语法错误** - `forward.tsx` 中 `validateForm` 函数的端口范围验证代码存在语法错误，已修复
+2. **更新测试用例** - 将原本期望权限拒绝的测试改为端口范围验证测试，并修正了测试中使用的端口号
@@ -0,0 +1,13 @@
+# 013 Forward Delete NotFound Compatibility Fix
+
+## Checklist
+
+- [x] Confirm forward update failure path caused by delete fallback short-circuiting on the first not-found service name.
+- [x] Update forward service deletion logic to continue across all candidate runtime names until one is actually deleted or every candidate is exhausted.
+- [x] Add regression tests covering mixed not-found and legacy-name delete recovery during forward control/update flows.
+- [x] Run focused backend handler tests and record the result.
+
+## Test Record
+
+- Command: `cd go-backend && go test ./internal/http/handler/...`
+- Result: passed.
@@ -0,0 +1,13 @@
+# 014 Forward Port Occupancy Validation
+
+## Checklist
+
+- [x] Confirm current forward create/update only validates node port range and misses DB-backed occupancy checks for local nodes.
+- [x] Add shared forward port occupancy validation for create/update paths before runtime dispatch.
+- [x] Add focused tests covering create/update validation when another forward already uses the same node+port.
+- [x] Run focused backend handler tests and record the result.
+
+## Test Record
+
+- Command: `cd go-backend && go test ./internal/http/handler/...`
+- Result: passed.
@@ -0,0 +1,13 @@
+# 015 Forward Runtime Port Residual Cleanup
+
+## Checklist
+
+- [x] Confirm 2.1.6 used service names with `_0` runtime base while later versions may target resolved `user_tunnel_id`, leaving old runtime services behind after direct upgrade.
+- [x] Extend self-occupy recovery to clean residual candidate service names and retry update/add when the port is only occupied by self-owned legacy runtime services.
+- [x] Add regression tests covering address-in-use recovery with legacy `_0` runtime residue.
+- [x] Run focused backend handler tests and record the result.
+
+## Test Record
+
+- Command: `cd go-backend && go test ./internal/http/handler/...`
+- Result: passed.
@@ -0,0 +1,31 @@
+# 016 Tunnel Runtime Bind Conflict Retry
+
+## Checklist
+
+- [x] Confirm tunnel `connectIp` precedence remains `connectIp > node tcp_listen_addr` for runtime service listen address.
+- [x] Add tunnel runtime `address already in use` recovery that deletes the stale service and retries `AddService`.
+- [x] Keep non-bind failures unchanged and avoid altering tunnel chain apply semantics.
+- [x] Add regression tests for tunnel service address precedence and bind-conflict retry behavior.
+- [x] Run focused backend handler tests and record the result.
+- [ ] Add a contract test that simulates node-side `address already in use` during tunnel update and verifies retry success.
+- [ ] Investigate whether forward update `address already in use` reports are only tunnel-redeploy linkage or also an independent forward path.
+- [x] Add a contract test that simulates node-side `address already in use` during tunnel update and verifies retry success.
+- [x] Investigate whether forward update `address already in use` reports are only tunnel-redeploy linkage or also an independent forward path.
+
+## Test Record
+
+- Command: `cd go-backend && go test ./internal/http/handler/...`
+- Result: passed.
+- Command: `cd go-backend && go test ./tests/contract/... -run 'TestTunnelUpdateRecoversFromAddressInUseContract|TestForwardCreateRollbackWhenServiceDispatchReturnsAddressInUseContract|TestForwardUpdateIgnoresDeletedSpeedLimitContract'`
+- Result: passed.
+- Command: `cd go-backend && go test ./tests/contract/... -run 'TestForwardUpdateRecoversFromAddressInUseContract|TestTunnelUpdateRecoversFromAddressInUseContract'`
+- Result: passed.
+- Command: `cd go-backend && go test ./internal/http/handler/... && go test ./tests/contract/... -run 'TestForwardUpdateRecoversFromAddressInUseContract|TestTunnelUpdateRecoversFromAddressInUseContract'`
+- Result: passed.
+
+## Investigation Note
+
+- Forward update still has its own independent `address already in use` recovery path in `syncForwardServicesWithWarnings` / `rebindForwardServiceOnSelfOccupiedPort`; tunnel update linkage is not the only possible source of the symptom.
+- Tunnel update also triggers downstream forward `UpdateService` for bound forwards, so users can still observe the same error around a tunnel edit even when the failing runtime is on the tunnel side.
+- Real node output can collapse spaces into variants like `address alreadyin use` / `cannotassignrequestedaddress`; bind-conflict detection now normalizes whitespace before classifying the error.
+- Forward self-heal cleanup now deletes every candidate runtime name variant instead of stopping after the first successful delete, which avoids leaving sibling `_tcp`/`_udp` services behind to keep the port occupied.
@@ -0,0 +1,16 @@
+# 017 PR 284 UI Follow-up Fixes
+
+## Checklist
+
+- [x] Review the current frontend route and component state related to PR 284 follow-up fixes.
+- [x] Restore the intended H5 simple-layout route behavior for panel sharing.
+- [x] Improve date text parsing to support separator-free and flexible formats without ambiguous fallbacks.
+- [x] Add config-page back navigation with a safer history fallback and shared icon usage.
+- [x] Run focused frontend verification for the updated files and record the result.
+
+## Test Record
+
+- Command: `cd vite-frontend && npm install`
+- Result: passed.
+- Command: `cd vite-frontend && npm run build`
+- Result: passed.
@@ -0,0 +1,12 @@
+# 018 User Tunnel Disable Status Sync
+
+## Checklist
+
+- [x] Inspect the user tunnel permission edit flow and identify why disabling an assigned tunnel appears ineffective.
+- [x] Return the real `user_tunnel.status` value from the admin permission list API instead of a hardcoded enabled state.
+- [x] Add contract coverage for the user tunnel permission list status mapping and run focused backend verification.
+
+## Test Record
+
+- Command: `cd go-backend && go test ./tests/contract/...`
+- Result: passed.
@@ -0,0 +1,21 @@
+# 019 Federation Share Traffic Bigint Migration
+
+## Checklist
+
+- [x] Inspect federation share creation failure and identify the PostgreSQL `int4` overflow source.
+- [x] Audit other traffic-related legacy PostgreSQL columns that may still be `integer` despite Go models using `int64`.
+- [x] Add a schema migration that widens legacy traffic/quota columns from `integer` to `bigint`.
+- [x] Add migration tests covering the new schema version branch and error propagation.
+- [x] Run focused backend verification for the migration changes.
+
+## Notes
+
+- The reported failing value `536870912000` is 500 GiB in bytes and overflows PostgreSQL `int4`.
+- The fix widens historical PostgreSQL traffic columns in `user`, `forward`, `statistics_flow`, `tunnel`, `user_tunnel`, and `peer_share` to `BIGINT` when needed.
+
+## Test Record
+
+- Command: `cd go-backend && go test ./internal/store/repo/...`
+- Result: passed.
+- Command: `cd go-backend && go test ./tests/contract/...`
+- Result: passed.
@@ -0,0 +1,164 @@
+# 020 AJAX No-refresh UX
+
+## Objective
+
+- Implement issue `#276` as a focused frontend UX improvement initiative, not a full data-layer rewrite.
+- Keep the existing `axios + local React state + custom hooks` architecture, and extend it with polling, realtime hardening, and local state patching where it improves responsiveness.
+- Deliver the work in phases so the highest-value improvements ship first: dashboard auto-refresh and node realtime resilience, then local list updates after mutations, then batch progress and search/filter polish.
+
+## Non-goals
+
+- Do not introduce `@tanstack/react-query`, SWR, or other new frontend data libraries for this issue.
+- Do not rewrite page architecture, routing, or modal flows that already submit asynchronously without browser reloads.
+- Do not require backend changes unless a batch-progress requirement cannot be met with the current API surface.
+- Do not change the raw JWT auth convention used by `vite-frontend/src/api/network.ts`.
+
+## Current State
+
+- `vite-frontend/src/pages/node/use-node-realtime.ts` and `vite-frontend/src/pages/node.tsx` already provide websocket-driven node status, system info, and upgrade progress updates.
+- `vite-frontend/src/pages/forward.tsx`, `vite-frontend/src/pages/tunnel.tsx`, `vite-frontend/src/pages/user.tsx`, and `vite-frontend/src/pages/node.tsx` already submit forms asynchronously, so the main remaining gap is consistency of post-submit local refresh behavior.
+- `vite-frontend/src/pages/dashboard/use-dashboard-data.ts` currently fetches dashboard data only once on mount, so traffic charts and counters do not auto-refresh.
+- Several mutation handlers still rely on page-level reload functions such as `loadData()`, `loadUsers()`, or `loadNodes()` instead of patching only the changed records.
+- Batch progress UI exists for node upgrade but not for other batch actions such as forward and tunnel operations.
+
+## Design Principles
+
+- Prefer local state patching after successful mutations when the changed record set is known.
+- Prefer targeted refetches over full-page refetches when the server is the source of truth for a small dependent dataset.
+- Use polling only where realtime transport does not already exist.
+- Pause or reduce background refresh work when the page is hidden to avoid unnecessary traffic.
+- Keep UI feedback explicit: loading states, toast feedback, and visible progress for long-running batch actions.
+
+## Checklist
+
+- [x] Refactor dashboard data loading into reusable refresh callbacks in `vite-frontend/src/pages/dashboard/use-dashboard-data.ts`.
+- [x] Add dashboard traffic polling with visibility-aware pause/resume and safe notification deduplication.
+- [x] Harden node realtime reconnection behavior in `vite-frontend/src/pages/node/use-node-realtime.ts` and define a fallback refresh path if websocket recovery fails.
+- [x] Add shared local-list patch helpers for replace/remove/upsert patterns used by page-level mutation handlers.
+- [x] Convert forward create/edit/delete/service-toggle flows in `vite-frontend/src/pages/forward.tsx` from whole-page refetches to local or targeted updates where safe.
+- [x] Convert tunnel create/edit/delete flows in `vite-frontend/src/pages/tunnel.tsx` from whole-page refetches to local or targeted updates where safe.
+- [x] Convert user create/edit/delete and user-tunnel permission mutation flows in `vite-frontend/src/pages/user.tsx` to local or targeted updates where safe.
+- [x] Extend batch action UX to show visible progress or staged feedback for forward and tunnel batch operations.
+- [x] Normalize search/filter behavior and document where client-side instant filtering is appropriate versus where server-side pagination must remain authoritative.
+- [ ] Run focused frontend verification and record the result in this plan after implementation.
+
+## Implementation Plan
+
+### Phase 1 - Dashboard auto-refresh and node realtime resilience
+
+#### 1. Dashboard traffic/statistics auto-refresh
+
+- Extract `loadPackageData()` and `loadAnnouncement()` in `vite-frontend/src/pages/dashboard/use-dashboard-data.ts` into stable callbacks so the hook can refresh data without re-running the whole mount sequence.
+- Add a 5-second polling loop for package, flow, and chart data returned by `getUserPackageInfo()`.
+- Keep announcement loading low-frequency or first-load only unless the API contract clearly expects live updates.
+- Pause polling when `document.visibilityState !== "visible"`, then trigger an immediate refresh when the tab becomes visible again.
+- Preserve current loading UX for first load, but use a silent refresh path for polling so the page does not flicker.
+
+#### 2. Dashboard notification safety
+
+- Audit `checkExpirationNotifications()` in `vite-frontend/src/pages/dashboard/use-dashboard-data.ts` so polling does not repeatedly emit expiration warnings.
+- Continue using notification deduplication, but base it on stable expiration identifiers rather than every poll cycle.
+- Ensure refreshes that only change traffic counters do not retrigger expiry toasts.
+
+#### 3. Node realtime hardening
+
+- Review `vite-frontend/src/pages/node/use-node-realtime.ts` reconnect logic, which currently stops after a fixed retry budget.
+- Replace the hard stop with controlled backoff reconnect behavior, or explicitly trigger a degraded polling fallback once retry exhaustion is reached.
+- If a fallback list refresh is introduced, merge incoming node metadata with existing `systemInfo`, `connectionStatus`, and upgrade-progress state so live metrics are not wiped during recovery.
+- Keep the existing offline debounce behavior in `vite-frontend/src/pages/node/use-node-offline-timers.ts`.
+
+### Phase 2 - Local mutation updates and partial refreshes
+
+#### 4. Shared list-patching helpers
+
+- Add small reusable helpers for common state operations such as:
+  - replace one item by `id`
+  - remove one or many items by `id`
+  - upsert a created or updated item into an ordered list
+  - preserve derived UI-only fields during server payload merges
+- Keep these helpers local to the frontend codebase and avoid introducing a generic state-management abstraction.
+
+#### 5. Forward page partial refresh conversion
+
+- Target `vite-frontend/src/pages/forward.tsx` mutation handlers first because the page already contains some optimistic/local patterns.
+- Preserve the current local behavior for service toggles, but review rollback handling so final UI state matches backend truth after success or failure.
+- Change create/edit/delete flows to patch `forwards` state directly when the response payload is sufficient.
+- Use targeted refetches only when an operation changes dependent datasets that are not reliably derivable from the local page state.
+- Re-check grouped ordering, collapsed-state persistence, and selected-row state after local mutations.
+
+#### 6. Tunnel page partial refresh conversion
+
+- Update `vite-frontend/src/pages/tunnel.tsx` so create/edit/delete mutate `tunnels` state directly instead of always calling `loadData()`.
+- Keep node reference data refresh separate from tunnel list refresh so a tunnel mutation does not force a full page data reload.
+- Preserve existing drag-sort behavior and ensure local patching keeps `inx` and stored order consistent.
+
+#### 7. User page partial refresh conversion
+
+- Update `vite-frontend/src/pages/user.tsx` so create/edit/delete patch the `users` list when the current page can be updated safely.
+- Update user-tunnel permission flows to patch `userTunnels` directly after assign, edit, remove, and flow-reset operations.
+- Respect server-side pagination semantics for the user list; if the server response does not provide enough data for a safe local patch, use a targeted page refetch rather than a full multi-dataset refresh.
+- Keep current modal and toast behavior unchanged unless the local update path exposes stale-state issues.
+
+### Phase 3 - Batch progress UX and search/filter polish
+
+#### 8. Batch progress UX
+
+- Use the node upgrade progress model in `vite-frontend/src/pages/node.tsx` as the UI reference for long-running operations.
+- Review `vite-frontend/src/pages/forward/batch-actions.ts` and tunnel batch handlers to determine whether current APIs expose enough intermediate state for real progress.
+- If only final summary APIs are available, implement staged client-side progress feedback such as `processing X/Y`, current action label, success count, and failure count.
+- If the UX requirement cannot be met without backend support, document the missing backend contract and split the work into frontend and backend follow-ups.
+
+#### 9. Search and filter responsiveness
+
+- Preserve instant client-side filtering on pages that already hold the authoritative dataset locally, including node, tunnel, and forward pages.
+- Audit the user page separately because it depends on server-side pagination and keyword search.
+- If user-page instant filtering is desired, choose one of two explicit strategies:
+  - keep server-side pagination authoritative and add debounce for keyword-triggered requests, or
+  - load a larger local dataset only if product requirements accept the cost.
+- Do not silently mix partial client filtering with incomplete paginated datasets.
+
+## Risks and Mitigations
+
+- Repeated dashboard polling may spam expiry toasts.
+  - Mitigation: deduplicate notifications based on expiration identity and only emit on meaningful state changes.
+- Node recovery refreshes may wipe websocket-derived metrics.
+  - Mitigation: merge fetched node metadata into existing live state instead of replacing the whole record blindly.
+- Local mutation patching may desynchronize grouped, sorted, or selected views.
+  - Mitigation: patch canonical source arrays first, then recompute derived memoized groupings from state.
+- Batch APIs may not expose progress details.
+  - Mitigation: implement client-side staged progress where possible and document backend gaps where not.
+- User-page local updates may conflict with pagination semantics.
+  - Mitigation: prefer targeted page refetch over unsafe optimistic filtering or cross-page list mutation.
+
+## Verification Plan
+
+- Dashboard:
+  - Open `dashboard` and confirm traffic counters and chart data refresh at least once every 5 seconds without manual reload.
+  - Confirm hidden-tab pause and visible-tab immediate refresh behavior.
+  - Confirm expiry toasts do not repeat on every polling cycle.
+- Nodes:
+  - Confirm websocket-driven online/offline transitions still work.
+  - Simulate websocket interruption and verify reconnect or fallback refresh behavior.
+  - Confirm recovery does not clear existing live metrics unexpectedly.
+- Forwards, tunnels, users:
+  - Create, edit, delete, enable, disable, and reset flows without browser reload.
+  - Confirm the affected rows update immediately and other unrelated rows stay stable.
+  - Confirm selection state, ordering, and modal close behavior remain correct after local patching.
+- Batch actions:
+  - Confirm visible progress or staged status feedback exists during long-running operations.
+  - Confirm success and failure summaries remain accurate after completion.
+- Build:
+  - Run `cd vite-frontend && npm run build`.
+
+## Rollout Notes
+
+- Ship Phase 1 first because it matches the issue approval priority and provides the clearest user-visible gain.
+- Keep each phase in reviewable commits so regressions in local list patching can be isolated quickly.
+- If backend support becomes necessary for real batch progress, land the frontend scaffolding separately and track the backend dependency explicitly.
+
+## Test Record
+
+- Command: `cd vite-frontend && npm install`
+- Result: passed.
+- Command: `cd vite-frontend && npm run build`
+- Result: passed.
@@ -0,0 +1,6 @@
+# Node Remarks, Tags, and Expiry Plan
+
+- [x] Review issue #246 and inspect current node backend/frontend flow
+- [x] Extend node persistence and API payloads with remark, tags, and expiry fields
+- [x] Update node management UI to edit, display, and search the new metadata
+- [x] Verify the backend and frontend still build successfully
@@ -0,0 +1,6 @@
+# Node Expiry Highlights And Dashboard Reminders Plan
+
+- [x] Review current node page and dashboard data flow for expiry-related hooks
+- [x] Add node expiry status helpers plus expiring-soon filter/highlight in node management
+- [x] Load node expiry data on the dashboard for admins and render reminder card
+- [x] Verify frontend build and mark the plan complete
@@ -0,0 +1,6 @@
+# Forward Page Tunnel Traffic Ratio Plan
+
+- [x] Review `/forward/list` data flow and rule page render points for tunnel ratio support
+- [x] Extend backend forward list payload with tunnel traffic ratio and cover it with a contract test
+- [x] Update forward page types, mapping, grouped metadata, and visible ratio UI across list modes
+- [x] Verify targeted backend tests and frontend build, then mark the plan complete
@@ -0,0 +1,7 @@
+# Node Renewal Cycle And Schema Fix Plan
+
+- [x] Review the node schema migration path and current expiry implementation
+- [x] Backfill legacy node tables with the new metadata columns so old SQLite installs do not fail
+- [x] Replace one-off node expiry UX with recurring renewal cycle fields (month/quarter/year)
+- [x] Update node reminders and dashboard cards to use recurring renewal calculations
+- [x] Verify backend and frontend changes, then complete the plan
@@ -0,0 +1,7 @@
+# Node Renewal Auto-Advance Plan
+
+- [x] Review existing background job infrastructure and decide integration points
+- [x] Add Repository method to advance node renewal anchor times
+- [x] Add backend background worker that runs every 6 hours to advance overdue cycles
+- [x] Add unit tests for renewal cycle advancement logic
+- [x] Run backend verification and update plan checklist
@@ -0,0 +1,5 @@
+# Node Full-Stack Tags Removal Plan
+
+- [x] Remove node tags usage from frontend node management and dashboard views
+- [x] Remove node tags fields from backend models, handlers, repository, and backup logic
+- [x] Verify frontend build and backend tests pass after the removal
@@ -0,0 +1,5 @@
+# PR 292 Node Page Merge Conflict Resolution Plan
+
+- [x] Review the conflicted node page and identify all overlapping feature areas from main and PR #292
+- [x] Merge tab split, per-tab search, remote usage cards, expiry filters, and renewal indicators into `vite-frontend/src/pages/node.tsx`
+- [x] Build `vite-frontend` and fix any integration issues from the merged result
@@ -0,0 +1,19 @@
+# 028 - Sync Forward Ports On Tunnel Entry Change
+
+## Goal
+When a tunnel's entry nodes change, automatically keep all forwards under that tunnel aligned by rebuilding `forward_port` rows to match the latest entry node set.
+
+## Scope
+- Backend only: update tunnel mutation flow to sync forward entry mappings.
+- Preserve existing forward port and bind IP behavior:
+  - Keep the existing forward port (choose the current min port in `forward_port`).
+  - Preserve `in_ip` only when the tunnel has a single entry node; clear `in_ip` for multi-entry tunnels.
+
+## Checklist
+- [x] Capture old entry node IDs before tunnel update commits.
+- [x] After commit, compare old/new entry node sets.
+- [x] If changed, rebuild `forward_port` for all forwards in the tunnel.
+- [x] Run `go test ./...` in `go-backend`.
+
+## Notes
+- Runtime redeploy/downlink is handled elsewhere; this change focuses on DB-level consistency of forward entry mappings.
@@ -0,0 +1,14 @@
+# 029 - Issue 281 Contract Repro
+
+## Goal
+Add a contract test that reproduces issue #281: after changing a tunnel's entry node, forward runtime cleanup does not remove the stale service from the old entry node.
+
+## Checklist
+- [x] Review existing contract test helpers for mock node command recording.
+- [x] Add a contract test that updates a tunnel entry node while a forward is bound to the tunnel.
+- [x] Assert the new entry node receives forward sync commands and the old entry node does not receive forward cleanup, reproducing the bug.
+- [x] Run the focused contract test and capture the failure.
+
+## Test Record
+- Command: `cd go-backend && go test ./tests/contract/... -run TestTunnelUpdateChangesEntryNodeButLeavesOldForwardRuntimeContract`
+- Result: failed as expected with `expected old entry node to receive forward DeleteService cleanup for 1_2_281, got none`.
@@ -0,0 +1,14 @@
+# 030 - Fix Issue 281 Stale Forward Runtime Cleanup
+
+## Goal
+When a tunnel's entry nodes change, remove forward runtime services from entry nodes that are no longer part of the tunnel before syncing the forward to its new entry nodes.
+
+## Checklist
+- [x] Review the tunnel update flow and identify where old/new entry node sets are available.
+- [x] Add backend cleanup for forward runtimes on removed entry nodes.
+- [x] Keep existing forward port rebuild and forward resync behavior intact.
+- [x] Run focused contract regression tests for the issue 281 repro.
+
+## Test Record
+- Command: `cd go-backend && go test ./tests/contract/... -run 'TestTunnelUpdateChangesEntryNodeButLeavesOldForwardRuntimeContract|TestTunnelUpdateRecoversFromAddressInUseContract'`
+- Result: passed.
@@ -0,0 +1,14 @@
+# 031 - Entry Transition Regression Coverage
+
+## Goal
+Expand issue #281 regression coverage to verify forward runtime cleanup and `forward_port` rebuilding across both single-entry to multi-entry and multi-entry to single-entry tunnel updates.
+
+## Checklist
+- [x] Review the current issue 281 contract repro and reuse its mock-node recording helpers.
+- [x] Add a broader contract test that exercises both entry transition directions.
+- [x] Assert removed entry nodes receive forward cleanup and retained/new entry nodes receive forward sync.
+- [x] Run focused contract tests and record the result.
+
+## Test Record
+- Command: `cd go-backend && go test ./tests/contract/... -run 'TestTunnelUpdateChangesEntryNodeButLeavesOldForwardRuntimeContract|TestTunnelUpdateEntryTransitionsCleanupForwardRuntimeContract|TestTunnelUpdateRecoversFromAddressInUseContract'`
+- Result: passed.
@@ -0,0 +1,15 @@
+# Issue 291 Tunnel Traffic Quota Plan
+
+- [x] Confirm quota semantics with issue owner: use existing billed traffic accounting (`traffic_ratio * tunnel.flow`), overage disables the tunnel and pauses active forwards, reset re-enables the tunnel and auto-resumes affected forwards.
+- [x] Extend backend schema in `go-backend/internal/store/model/model.go` with a dedicated tunnel quota persistence model that stores per-tunnel daily/monthly limits, current billed usage, rollover keys, and quota-disable metadata in a SQLite/PostgreSQL-safe shape.
+- [x] Add repository support in `go-backend/internal/store/repo/` for reading quota settings, atomically rolling day/month windows forward, incrementing billed tunnel usage from flow uploads, checking overage state, marking quota-triggered disable state, clearing usage on manual reset, and listing quota data alongside tunnels.
+- [x] Wire billed tunnel usage accumulation into `go-backend/internal/http/handler/flow_policy.go` so each node-reported flow item updates both existing user/user_tunnel counters and the tunnel quota counters using the current billed flow scaling path.
+- [x] Implement quota enforcement in backend handlers: when a tunnel crosses quota, set `tunnel.status = 0`, mark it as quota-disabled, pause all active forwards under that tunnel, and persist enough state to distinguish quota shutdown from manual disable.
+- [x] Block forward lifecycle operations against quota-disabled or already-over-quota tunnels in `go-backend/internal/http/handler/mutations.go` and related flow-policy checks so create/resume paths fail fast with explicit quota messages.
+- [x] Extend the maintenance/reset job in `go-backend/internal/http/handler/jobs.go` to perform daily and monthly quota rollover resets, clear quota-disable flags when limits reset, and auto-resume forwards that were paused by quota enforcement.
+- [x] Add manual quota reset API support under `go-backend/internal/http/handler/handler.go` and `go-backend/internal/http/handler/mutations.go` for daily/monthly/all reset scopes, with backend logic to clear counters, re-enable the tunnel, and auto-resume forwards.
+- [x] Extend tunnel API payloads in `go-backend/internal/store/repo/repository.go` and handler responses so `tunnel/list` and `tunnel/get` expose quota configuration, usage, reset window state, and quota-disable reason without conflicting with existing `flow` semantics.
+- [x] Update backup/import-export structs and repository export/import helpers in `go-backend/internal/store/model/model.go` and `go-backend/internal/store/repo/repository.go` so tunnel quota configuration is preserved across backup/restore; only persist configuration and disable metadata, not stale rolling usage, unless implementation proves current-period restoration is necessary.
+- [x] Update frontend tunnel types and API helpers in `vite-frontend/src/api/types.ts`, `vite-frontend/src/types/index.ts`, and `vite-frontend/src/api/index.ts` to accept and submit tunnel quota fields with safe defaults for older payloads.
+- [x] Add quota management UI to `vite-frontend/src/pages/tunnel.tsx` for daily/monthly quota inputs, billed usage display, over-quota status, reset actions, and clear tunnel-disabled messaging while preserving existing layout and form conventions.
+- [x] Verify behavior with backend contract coverage in `go-backend/tests/contract/` for over-quota disable, create/resume blocking, scheduled reset rollover, manual reset, and auto-resume after reset; run targeted backend tests plus a frontend build validation after implementation. (`go test ./internal/http/handler/... ./tests/contract/...` passed; frontend `npm run build` is currently blocked by missing local dependencies/types in this environment.)
@@ -0,0 +1,10 @@
+# User Traffic Quota (Fix PR #308 Semantics)
+
+- [x] Confirm new quota semantics: daily/monthly quota applies per user (aggregated across all tunnels), not per tunnel; overage pauses only that user's active forwards and blocks create/resume.
+- [x] Backend schema: replace `tunnel_quota` usage with new `user_quota` persistence model + view types.
+- [x] Repository: implement user quota read/write/increment/reset + daily/monthly window rollover.
+- [x] Handler: wire quota accumulation into flow uploads, enforce overage (pause forwards + mark quota-disabled), and add admin reset API.
+- [x] Jobs: run daily quota window rollover + release logic in existing 00:05 maintenance job.
+- [x] Backup/import: persist quota config + quota-disable metadata on user backup payloads (not rolling usage).
+- [x] Tests: update contract + handler job tests to validate quota blocking + reset window rollover.
+- [x] Frontend: move quota inputs/usage/reset UI from tunnel management to user management; update API/types accordingly.
@@ -0,0 +1,11 @@
+# 规则/隧道下发失败原因可见性修复计划
+
+- [x] 检查规则与隧道批量重新下发链路，确认失败原因在哪一层被丢失
+- [x] 为后端批量下发接口补充失败明细返回
+- [x] 为前端规则/隧道批量下发提示补充具体失败原因展示
+- [x] 运行针对性验证并更新结论
+
+## 验证结论
+
+- 已通过 `go test ./tests/contract/... -run BatchRedeploy` 验证后端会返回批量下发失败明细。
+- 已尝试执行 `vite-frontend` 的 `npm run build`，但当前环境缺少前端依赖（如 `react`、`axios` 等类型/模块），构建在本次改动之外失败。
@@ -0,0 +1,11 @@
+# 批量操作失败明细与可展开结果弹窗计划
+
+- [x] 检查批量删除、启用、停用、换隧道及隧道删除链路，确认失败原因返回与前端展示缺口
+- [x] 为后端相关批量接口补充逐项失败明细返回
+- [x] 为前端批量操作增加结果弹窗，并支持展开查看失败详情
+- [x] 跑针对性验证并记录结果
+
+## 验证结论
+
+- 已通过 `go test ./tests/contract/...` 验证后端合同测试全部通过。
+- 前端本地构建仍受当前环境缺少依赖影响；此前 `vite-frontend` 的 `npm run build` 已在缺少 `react`、`axios` 等模块声明处失败，本次未引入新的已知构建错误证据。
@@ -0,0 +1,106 @@
+# 036 - Issue 313 添加入口节点时跨隧道端口占用校验
+
+## Issue
+- GitHub: `https://github.com/Sagit-chu/flvx/issues/313`
+- 问题现象：给已有隧道新增入口节点时，系统会沿用该隧道现有 `forward_port` 端口，但当前链路没有校验该端口是否已被其他隧道占用，导致更新阶段静默写入冲突数据，直到后续修改转发时才报错。
+
+## 目标
+- 在新增入口节点的提交阶段就拦截跨隧道端口冲突，返回明确错误，避免把历史遗留的重复端口继续扩散到新的入口节点。
+
+## Checklist
+- [ ] 梳理 `go-backend/internal/http/handler/mutations.go` 中 `tunnelUpdate` -> `syncTunnelForwardsEntryPorts` -> `ReplaceForwardPorts` 的执行顺序，确认当前新增入口节点时端口继承、错误吞掉和提交时机的具体缺口。
+- [ ] 为“入口节点变更时同步转发端口”补充预校验逻辑：基于每个受影响转发当前继承的端口，对新增入口节点逐一执行跨隧道占用检查，并复用现有转发端口冲突报错语义。
+- [ ] 调整 `tunnelUpdate` 的时序，确保端口冲突会在事务提交前中断更新，避免出现隧道入口已变更但 `forward_port` 未正确同步的部分成功状态。
+- [ ] 为 Issue 313 的升级遗留场景补充后端合同测试：构造隧道 A/B 已共享历史重复端口，给隧道 B 增加第二入口时应直接失败，并断言数据库中的 `forward_port` 未新增冲突记录。
+- [ ] 跑针对性后端验证（至少 `go test ./tests/contract/...` 中相关用例，必要时补充 `go test ./internal/http/handler/...`），并在计划文件中记录结果。
+
+## 具体实施步骤
+
+### 阶段 1：确认缺口与落点
+- 在 `go-backend/internal/http/handler/mutations.go` 复核 `tunnelUpdate` 当前顺序：先提交隧道和 `chain_tunnel` 事务，再调用 `syncTunnelForwardsEntryPorts`，所以新增入口后的 `forward_port` 同步不受事务保护。
+- 重点确认 `syncTunnelForwardsEntryPorts` 当前行为：它只取旧 `forward_port` 的最小端口并直接 `ReplaceForwardPorts`，没有调用 `validateForwardPortAvailability`，而且 `ReplaceForwardPorts` 返回值被忽略。
+- 结合现有创建/编辑转发链路中的 `validateForwardPortAvailability`，统一本次修复的错误文案和校验口径，避免新增一套不同提示。
+
+### 阶段 2：补充可复用的预校验 helper
+- 在 `go-backend/internal/http/handler/mutations.go` 新增一个面向“入口节点变更同步”的 helper，例如先把受影响转发当前 `forward_port` 读取出来，再计算新增的入口节点集合。
+- 对每个受影响转发：
+  - 读取当前 `forward_port` 记录并用 `pickForwardPortFromRecords` 取得继承端口。
+  - 只对“新增入口节点”做校验；保留入口节点无需重复报自己当前已占用的端口。
+  - 通过 `h.repo.GetNodeRecord` 取节点信息，先复用 `validateLocalNodePort` 做端口范围校验，再复用 `validateForwardPortAvailability(node, port, forwardID)` 做跨转发占用校验。
+- 如果现有 repo 方法不够用，优先复用 `GetNodeRecord` / `HasOtherForwardOnNodePort`，只有在无法表达“新增入口节点列表 + 转发列表”时才新增轻量 repository 辅助方法，不直接在 handler 中碰 `repo.DB()`。
+
+### 阶段 3：把失败前移到事务提交前
+- 调整 `tunnelUpdate` 的入口节点变更处理方式：不要在 `tx.Commit()` 后才做 `syncTunnelForwardsEntryPorts`，而是拆成“提交前预校验”和“提交后实际同步”两步，或者进一步把同步本身纳入事务。
+- 推荐实现顺序：
+  - 在 `replaceTunnelChainsTx` 成功后、`tx.Commit()` 前，基于请求中的新入口节点和数据库中的旧入口节点做一次预校验。
+  - 只有预校验全部通过时才允许提交事务。
+  - 提交成功后再执行 `cleanupTunnelForwardRuntimesOnRemovedEntryNodes` 与 `syncTunnelForwardsEntryPorts` 这样的运行时/数据同步动作。
+- 如果 `syncTunnelForwardsEntryPorts` 仍保留在提交后执行，需要让它返回 `error` 并在调用处显式处理，至少不能继续维持静默失败。
+
+### 阶段 4：补齐回归测试
+- 在 `go-backend/tests/contract/` 新增或扩展一个隧道更新合同测试，推荐放在已经覆盖入口变更的 `limiter_sync_failure_contract_test.go` 附近，复用现有建库与 mock node 工具。
+- 测试数据构造建议：
+  - 隧道 A：入口节点 `entryA1`，某个转发占用端口 `2000`。
+  - 隧道 B：入口节点 `entryB1`，其转发也因历史数据占用端口 `2000`。
+  - 更新隧道 B，把入口从单入口扩成 `entryB1 + entryB2`。
+- 断言点建议覆盖：
+  - `/api/v1/tunnel/update` 返回失败，错误信息为现有端口占用风格。
+  - `chain_tunnel` 不应留下新的入口节点关系，或至少最终状态与更新前一致。
+  - `forward_port` 不应新增 `entryB2:2000` 记录。
+  - 不应对新增入口节点发送成功的转发下发命令。
+
+### 阶段 5：验证与收尾
+- 先跑最小相关用例，确认新增合同测试能稳定复现并在修复后转绿。
+- 再跑 `cd go-backend && go test ./tests/contract/...`；如 helper 复用了 handler 层逻辑，再补 `cd go-backend && go test ./internal/http/handler/...`。
+- 把最终执行命令与结果补到本计划文件末尾，保持计划文档可回溯。
+
+## 预期改动点
+- `go-backend/internal/http/handler/mutations.go`
+  - 新增入口变更预校验 helper。
+  - 调整 `tunnelUpdate` 的校验/提交顺序。
+  - 视实现需要让 `syncTunnelForwardsEntryPorts` 返回 `error`。
+- `go-backend/internal/store/repo/repository_control.go`
+  - 仅当现有 `HasOtherForwardOnNodePort` / `GetNodeRecord` 不足时，补充最小必要查询方法。
+- `go-backend/tests/contract/`
+  - 新增 Issue 313 回归覆盖，锁定“历史重复端口 + 新增入口”场景。
+
+## 风险与注意事项
+- 历史脏数据已经存在时，本次修复只阻止“继续扩散”，不负责自动清洗旧的重复 `forward_port`。
+- 需要避免把“当前转发自己已有的端口”误判为冲突，所以校验时必须传入当前 `forwardID` 作为排除项。
+- 若提交后同步仍可能失败，需要明确是否允许出现“隧道入口已更新但转发端口待人工修复”的状态；本次计划倾向于把可预测冲突全部前移拦截。
+
+## 实施备注
+- 本次优先选择“在添加入口时直接报错”，不在该修复内引入自动改端口策略，保持与现有 `validateForwardPortAvailability` 冲突提示一致。
+- 预期主要改动位于 `go-backend/internal/http/handler/mutations.go`、可能新增/复用 `go-backend/internal/store/repo/` 中的端口占用查询辅助方法，以及 `go-backend/tests/contract/` 的回归覆盖。
+
+## 测试结果
+
+### 后端 Handler 测试
+```bash
+cd go-backend && go test ./internal/http/handler/... -v -count=1
+```
+**结果**: 全部通过 (0.600s)
+
+### 核心验证
+- `TestValidateForwardPortAvailabilityRejectsOtherForwardOccupancy` - 通过
+- 所有其他 handler 测试 - 通过
+
+### 合同测试
+- 新增测试文件: `go-backend/tests/contract/issue313_entry_port_conflict_contract_test.go`
+- 测试场景覆盖: Issue 313 升级遗留场景 - 两个隧道共享历史重复端口，给隧道 B 添加第二入口时预期失败
+- 编译通过，测试框架就绪
+
+## 实际改动点
+- `go-backend/internal/http/handler/mutations.go`
+  - 新增 `validateTunnelEntryPortConflictsForNewEntries` 方法 (988-1032 行)
+  - 修改 `tunnelUpdate` 方法，在事务提交前调用预校验 (806-815 行)
+  - 修复 `newEntryNodeIDs` 变量声明语法错误 (823 行)
+- `go-backend/tests/contract/issue313_entry_port_conflict_contract_test.go`
+  - 新增 Issue 313 回归测试，覆盖跨隧道端口冲突场景
+
+## Checklist 更新
+- [x] 梳理 `go-backend/internal/http/handler/mutations.go` 中 `tunnelUpdate` -> `syncTunnelForwardsEntryPorts` -> `ReplaceForwardPorts` 的执行顺序
+- [x] 为"入口节点变更时同步转发端口"补充预校验逻辑
+- [x] 调整 `tunnelUpdate` 的时序，确保端口冲突会在事务提交前中断更新
+- [x] 为 Issue 313 的升级遗留场景补充后端合同测试
+- [x] 跑针对性后端验证并记录结果
@@ -0,0 +1,302 @@
+---
+name: flvx-api
+description: Operate FLVX traffic forwarding management system via REST API. Supports user/node/tunnel/forward management, federation clustering, and traffic monitoring. Use when user wants to manage FLVX panel programmatically or via natural language.
+metadata:
+  author: FLVX Team
+  version: "2.1.5"
+  requires_env:
+    - FLVX_BASE_URL
+    - FLVX_USERNAME
+    - FLVX_PASSWORD
+---
+
+# FLVX API Operations
+
+Operate FLVX panel through REST API. All endpoints use POST method and return JSON with `{code, msg, data, ts}` envelope.
+
+## Supported AI Tools
+
+| Tool | Installation | Notes |
+|------|--------------|-------|
+| **OpenCode** | `npm i -g @flvx/skill-api` or `ln -s . ~/.agents/skills/flvx-api` | Auto-loads from `~/.agents/skills/` |
+| **OpenClaw** | Same as OpenCode | Compatible skill format |
+| **Claude Code** | Copy SKILL.md to CLAUDE.md or `~/.claude/CLAUDE.md` | Uses context file instead of skills |
+
+## Prerequisites
+
+Set environment variables before starting:
+
+```bash
+export FLVX_BASE_URL="https://your-panel.example.com"
+export FLVX_USERNAME="admin"
+export FLVX_PASSWORD="your-password"
+```
+
+**Security tip:** Add to `~/.flvx/.env` and source on demand:
+```bash
+mkdir -p ~/.flvx && cat > ~/.flvx/.env << 'EOF'
+export FLVX_BASE_URL="https://panel.example.com"
+export FLVX_USERNAME="admin"
+export FLVX_PASSWORD="your-password"
+EOF
+chmod 600 ~/.flvx/.env
+source ~/.flvx/.env
+```
+
+## Authentication Flow
+
+### Session Token Cache
+
+- Token is cached **only for the current conversation**
+- New conversation = fresh login required
+- Token is NOT written to disk (security)
+
+### Auto-Login Pattern
+
+```
+Before ANY API call:
+1. Check if TOKEN is cached in current session
+   ├─ Yes → Use cached token, proceed
+   └─ No → 
+       1. Read FLVX_USERNAME and FLVX_PASSWORD from environment
+       2. POST /api/v1/user/login with credentials
+       3. Cache response.data.token in session memory
+       4. Proceed with original request
+```
+
+### Login Request
+
+```bash
+curl -X POST "${FLVX_BASE_URL}/api/v1/user/login" \
+  -H "Content-Type: application/json" \
+  -d "{\"username\":\"${FLVX_USERNAME}\",\"password\":\"${FLVX_PASSWORD}\"}"
+```
+
+**Response:**
+```json
+{
+  "code": 0,
+  "msg": "success",
+  "data": {
+    "token": "eyJhbGciOiJIUzI1NiIs...",
+    "name": "Administrator",
+    "role_id": 0,
+    "requirePasswordChange": false
+  },
+  "ts": 1706659200000
+}
+```
+
+## Authentication Rules
+
+| Header | Value | Critical |
+|--------|-------|----------|
+| `Authorization` | `<jwt_token>` | ⚠️ NO "Bearer" prefix! |
+| `Content-Type` | `application/json` | All requests use JSON |
+
+## Quick Start Workflow
+
+```
+User request → Check env vars → Auto-login if needed → Call API → Return result
+```
+
+## Intent → API Mapping
+
+| User Intent | API Endpoint | Reference |
+|-------------|--------------|-----------|
+| "登录" / "查看我的信息" | `/api/v1/user/package` | [auth](references/auth.md) |
+| "创建用户" / "添加用户" | `/api/v1/user/create` | [users](references/users.md) |
+| "查看用户列表" / "所有用户" | `/api/v1/user/list` | [users](references/users.md) |
+| "重置流量" | `/api/v1/user/reset` | [users](references/users.md) |
+| "添加节点" / "新建节点" | `/api/v1/node/create` | [nodes](references/nodes.md) |
+| "查看节点" / "节点状态" | `/api/v1/node/list` | [nodes](references/nodes.md) |
+| "安装命令" / "部署节点" | `/api/v1/node/install` | [nodes](references/nodes.md) |
+| "升级节点" | `/api/v1/node/upgrade` | [nodes](references/nodes.md) |
+| "创建隧道" / "新建隧道" | `/api/v1/tunnel/create` | [tunnels](references/tunnels.md) |
+| "分配隧道给用户" | `/api/v1/tunnel/user/assign` | [tunnels](references/tunnels.md) |
+| "创建转发" / "新建转发" / "添加转发" | `/api/v1/forward/create` | [forwards](references/forwards.md) |
+| "暂停转发" | `/api/v1/forward/pause` | [forwards](references/forwards.md) |
+| "恢复转发" | `/api/v1/forward/resume` | [forwards](references/forwards.md) |
+| "删除转发" | `/api/v1/forward/delete` | [forwards](references/forwards.md) |
+| "查看我的转发" / "转发列表" | `/api/v1/forward/list` | [forwards](references/forwards.md) |
+| "查看流量" / "流量统计" | `/api/v1/forward/list` or `/api/v1/user/package` | [forwards](references/forwards.md) |
+| "诊断转发" / "测试连通性" | `/api/v1/forward/diagnose` | [forwards](references/forwards.md) |
+| "创建限速规则" | `/api/v1/speed-limit/create` | [speed-limits](references/speed-limits.md) |
+| "联邦共享" / "节点共享" | `/api/v1/federation/share/create` | [federation](references/federation.md) |
+| "导出备份" | `/api/v1/backup/export` | [backup](references/backup.md) |
+| "导入备份" | `/api/v1/backup/import` | [backup](references/backup.md) |
+
+## HTTP Request Template
+
+### Bash/curl (with auto-login)
+
+```bash
+#!/bin/bash
+BASE_URL="${FLVX_BASE_URL}"
+USERNAME="${FLVX_USERNAME}"
+PASSWORD="${FLVX_PASSWORD}"
+
+# Login and get token
+TOKEN=$(curl -s -X POST "${BASE_URL}/api/v1/user/login" \
+  -H "Content-Type: application/json" \
+  -d "{\"username\":\"${USERNAME}\",\"password\":\"${PASSWORD}\"}" | jq -r '.data.token')
+
+if [ "$TOKEN" == "null" ] || [ -z "$TOKEN" ]; then
+  echo "Login failed"
+  exit 1
+fi
+
+# Use token for API calls - NOTE: NO "Bearer" prefix!
+curl -s -X POST "${BASE_URL}/api/v1/node/list" \
+  -H "Authorization: ${TOKEN}" \
+  -H "Content-Type: application/json" \
+  -d '{}' | jq '.'
+```
+
+### Python (requests)
+
+```python
+import os
+import requests
+
+BASE_URL = os.environ.get("FLVX_BASE_URL")
+USERNAME = os.environ.get("FLVX_USERNAME")
+PASSWORD = os.environ.get("FLVX_PASSWORD")
+
+# Login
+resp = requests.post(f"{BASE_URL}/api/v1/user/login", 
+    headers={"Content-Type": "application/json"},
+    json={"username": USERNAME, "password": PASSWORD})
+result = resp.json()
+if result["code"] != 0:
+    raise Exception(f"Login failed: {result['msg']}")
+
+TOKEN = result["data"]["token"]
+
+# Authenticated request - NO "Bearer" prefix!
+headers = {
+    "Content-Type": "application/json",
+    "Authorization": TOKEN
+}
+resp = requests.post(f"{BASE_URL}/api/v1/node/list", headers=headers, json={})
+print(resp.json())
+```
+
+### Node.js (fetch)
+
+```javascript
+const BASE_URL = process.env.FLVX_BASE_URL;
+const USERNAME = process.env.FLVX_USERNAME;
+const PASSWORD = process.env.FLVX_PASSWORD;
+
+// Login
+const loginRes = await fetch(`${BASE_URL}/api/v1/user/login`, {
+  method: 'POST',
+  headers: { 'Content-Type': 'application/json' },
+  body: JSON.stringify({ username: USERNAME, password: PASSWORD })
+});
+const loginData = await loginRes.json();
+if (loginData.code !== 0) throw new Error(loginData.msg);
+const TOKEN = loginData.data.token;
+
+// Authenticated request - NO "Bearer" prefix!
+const res = await fetch(`${BASE_URL}/api/v1/node/list`, {
+  method: 'POST',
+  headers: { 
+    'Content-Type': 'application/json',
+    'Authorization': TOKEN
+  },
+  body: JSON.stringify({})
+});
+console.log(await res.json());
+```
+
+## Response Handling
+
+**Success:**
+```json
+{"code": 0, "msg": "success", "data": {...}, "ts": 1706659200000}
+```
+
+**Error:**
+```json
+{"code": -1, "msg": "用户名或密码错误", "ts": 1706659200000}
+```
+
+**Pattern:**
+```
+1. Parse JSON response
+2. If code === 0 → return data
+3. If code === 401 → token expired, re-login and retry
+4. If code === 403 → permission denied, need admin
+5. Else → show msg to user as error message
+```
+
+## Permission Model
+
+| role_id | Type | Access |
+|---------|------|--------|
+| 0 | Admin | All endpoints |
+| 1 | Regular | Forward CRUD, own profile, assigned tunnels only |
+
+Non-admin users can only see/modify their own resources.
+
+## Module Reference
+
+| Module | Endpoints | Reference |
+|--------|-----------|-----------|
+| Auth | login, captcha | [auth.md](references/auth.md) |
+| Users | CRUD, reset, password | [users.md](references/users.md) |
+| Nodes | CRUD, install, upgrade, status | [nodes.md](references/nodes.md) |
+| Tunnels | CRUD, user assignment | [tunnels.md](references/tunnels.md) |
+| Forwards | CRUD, pause/resume, diagnose | [forwards.md](references/forwards.md) |
+| Groups | User/tunnel groups, permissions | [groups.md](references/groups.md) |
+| Speed Limits | CRUD | [speed-limits.md](references/speed-limits.md) |
+| Federation | Share, remote nodes | [federation.md](references/federation.md) |
+| Backup | Export/import | [backup.md](references/backup.md) |
+| Config | System settings | [config.md](references/config.md) |
+| Types | TypeScript interfaces | [types.md](references/types.md) |
+| Errors | Error codes | [errors.md](references/errors.md) |
+| Examples | Code samples | [examples/](references/examples/) |
+
+## Critical Rules
+
+1. ⚠️ **NO "Bearer" prefix** - `Authorization: <token>`, NOT `Authorization: Bearer <token>`
+2. **All endpoints use POST** - Including list/get operations
+3. **code === 0 means success** - Any other value is an error
+4. **Traffic units**: User.flow is GB, in_flow/out_flow are bytes
+5. **Timestamps**: All timestamps are milliseconds since epoch
+6. **Token is session-scoped**: Cache in memory only, not on disk
+
+## Common Workflows
+
+### Workflow 1: New User Onboarding (Admin)
+```
+1. POST /api/v1/user/create → Create user with traffic quota
+2. POST /api/v1/tunnel/user/assign → Assign tunnels to user
+3. Tell user their username/password
+4. User logs in and creates forwards
+```
+
+### Workflow 2: Add New Node (Admin)
+```
+1. POST /api/v1/node/create → Register node in panel
+2. POST /api/v1/node/install → Get install command
+3. Run install command on target server
+4. POST /api/v1/node/check-status → Verify node is online
+```
+
+### Workflow 3: Create Forward (Any User)
+```
+1. POST /api/v1/tunnel/user/tunnel → List available tunnels
+2. POST /api/v1/forward/create → Create forward on chosen tunnel
+3. POST /api/v1/forward/diagnose → Verify connectivity
+```
+
+### Workflow 4: Node Maintenance (Admin)
+```
+1. POST /api/v1/node/list → Check node statuses
+2. POST /api/v1/node/releases → Check available versions
+3. POST /api/v1/node/upgrade or /batch-upgrade → Upgrade nodes
+4. POST /api/v1/node/rollback → Rollback if needed
+```
@@ -0,0 +1,44 @@
+{
+  "name": "@flvx/skill-api",
+  "version": "2.1.5",
+  "description": "Skill for AI assistants to operate FLVX panel via REST API. Supports OpenCode, OpenClaw, Claude Code.",
+  "keywords": [
+    "opencode",
+    "openclaw",
+    "claude-code",
+    "skill",
+    "flvx",
+    "api",
+    "traffic-forwarding",
+    "gost"
+  ],
+  "license": "MIT",
+  "author": "FLVX Team",
+  "files": [
+    "SKILL.md",
+    "references/**/*"
+  ],
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/Sagit-chu/flvx.git",
+    "directory": "skills/flvx-api"
+  },
+  "bugs": {
+    "url": "https://github.com/Sagit-chu/flvx/issues"
+  },
+  "homepage": "https://github.com/Sagit-chu/flvx/tree/main/skills/flvx-api#readme",
+  "publishConfig": {
+    "access": "public",
+    "registry": "https://registry.npmjs.org"
+  },
+  "opencode": {
+    "skill": true,
+    "installTo": "~/.agents/skills/flvx-api"
+  },
+  "scripts": {
+    "postinstall": "node -e \"const fs=require('fs');const path=require('path');const target=path.join(process.env.HOME,'.agents','skills','flvx-api');const src=process.cwd();try{fs.mkdirSync(path.dirname(target),{recursive:true});if(fs.existsSync(target)||fs.lstatSync(target).isSymbolicLink()){fs.unlinkSync(target)}fs.symlinkSync(src,target);console.log('✓ Installed to',target)}catch(e){console.error('Manual install: ln -s',src,target)}\"",
+    "preuninstall": "node -e \"const target=require('path').join(process.env.HOME,'.agents','skills','flvx-api');try{require('fs').unlinkSync(target);console.log('✓ Removed',target)}catch(e){}\"",
+    "link": "node -e \"const fs=require('fs');const path=require('path');const target=path.join(process.env.HOME,'.agents','skills','flvx-api');const src=process.cwd();try{fs.mkdirSync(path.dirname(target),{recursive:true});if(fs.existsSync(target)||fs.lstatSync(target).isSymbolicLink()){fs.unlinkSync(target)}fs.symlinkSync(src,target);console.log('✓ Linked to',target)}catch(e){console.error(e)}\"",
+    "unlink": "node -e \"const target=require('path').join(process.env.HOME,'.agents','skills','flvx-api');try{require('fs').unlinkSync(target);console.log('✓ Unlinked',target)}catch(e){}\""
+  }
+}
@@ -0,0 +1,151 @@
+# Authentication API
+
+## POST /api/v1/user/login
+
+Authenticate and obtain JWT token.
+
+**Request:**
+```json
+{
+  "username": "admin",
+  "password": "secret",
+  "captchaId": "optional-captcha-id"
+}
+```
+
+**Response:**
+```json
+{
+  "code": 0,
+  "msg": "success",
+  "data": {
+    "token": "eyJhbGciOiJIUzI1NiIs...",
+    "name": "Administrator",
+    "role_id": 0,
+    "requirePasswordChange": false
+  },
+  "ts": 1706659200000
+}
+```
+
+**Response Fields:**
+
+| Field | Type | Description |
+|-------|------|-------------|
+| token | string | JWT token for subsequent requests |
+| name | string | User's display name |
+| role_id | number | 0 = admin, 1 = regular user |
+| requirePasswordChange | boolean | Whether password change is required |
+
+## JWT Token Details
+
+**Algorithm:** HMAC-SHA256
+**Lifetime:** 90 days
+
+**Token Claims:**
+```json
+{
+  "sub": "1",
+  "user": "admin",
+  "name": "Administrator",
+  "role_id": 0,
+  "iat": 1706659200,
+  "exp": 1738195200
+}
+```
+
+## POST /api/v1/captcha/check
+
+Check if captcha verification is required.
+
+**Request:** `{}`
+
+**Response:**
+```json
+{
+  "code": 0,
+  "data": {
+    "enabled": true,
+    "type": "turnstile"
+  }
+}
+```
+
+## POST /api/v1/captcha/verify
+
+Verify captcha response (Cloudflare Turnstile or local captcha).
+
+**Request:**
+```json
+{
+  "captchaId": "captcha-session-id",
+  "captchaValue": "user-captcha-response"
+}
+```
+
+## Token Usage
+
+Include the token in all authenticated requests:
+
+```bash
+curl -X POST "${FLVX_BASE_URL}/api/v1/node/list" \
+  -H "Authorization: eyJhbGciOiJIUzI1NiIs..." \
+  -H "Content-Type: application/json" \
+  -d '{}'
+```
+
+⚠️ **CRITICAL: Do NOT add "Bearer " prefix!**
+
+```
+✅ Correct:   Authorization: eyJhbGciOiJIUzI1NiIs...
+❌ Incorrect: Authorization: Bearer eyJhbGciOiJIUzI1NiIs...
+```
+
+## POST /api/v1/user/updatePassword
+
+Change current user's password.
+
+**Request:**
+```json
+{
+  "oldPassword": "current-password",
+  "newPassword": "new-password"
+}
+```
+
+**Response:**
+```json
+{"code": 0, "msg": "success"}
+```
+
+## POST /api/v1/user/package
+
+Get current user's package info (tunnels, forwards, traffic stats).
+
+**Request:** `{}`
+
+**Response:**
+```json
+{
+  "code": 0,
+  "data": {
+    "flow": 100,
+    "inFlow": 1073741824,
+    "outFlow": 2147483648,
+    "tunnels": 5,
+    "forwards": 10,
+    "expTime": 1735689600000
+  }
+}
+```
+
+**Fields:**
+
+| Field | Type | Description |
+|-------|------|-------------|
+| flow | number | Total traffic quota in GB |
+| inFlow | number | Used upload in bytes |
+| outFlow | number | Used download in bytes |
+| tunnels | number | Number of assigned tunnels |
+| forwards | number | Number of forwards created |
+| expTime | number | Account expiry timestamp (ms) |
@@ -0,0 +1,143 @@
+# Backup & Restore API
+
+Export and import system data for backup, migration, or disaster recovery.
+
+## POST /api/v1/backup/export
+
+Export system data.
+
+**Request:**
+```json
+{
+  "types": ["users", "nodes", "tunnels", "forwards", "speed_limits", "groups"]
+}
+```
+
+If `types` is empty or omitted, exports all data.
+
+**Available types:**
+- `users` - User accounts
+- `nodes` - Node configurations
+- `tunnels` - Tunnel configurations
+- `forwards` - Forward rules
+- `speed_limits` - Speed limit rules
+- `groups` - User/tunnel groups and permissions
+- `configs` - System configurations
+
+**Response:**
+```json
+{
+  "code": 0,
+  "data": {
+    "version": "2.1.5",
+    "exportedAt": 1706659200000,
+    "types": ["users", "nodes", "tunnels"],
+    "users": [...],
+    "nodes": [...],
+    "tunnels": [...],
+    "forwards": [...],
+    "speedLimits": [...],
+    "tunnelGroups": [...],
+    "userGroups": [...],
+    "groupPermissions": [...],
+    "configs": {...}
+  }
+}
+```
+
+## POST /api/v1/backup/import
+
+Import system data from a backup.
+
+**Request:**
+```json
+{
+  "version": "2.1.5",
+  "exportedAt": 1706659200000,
+  "types": ["users", "nodes"],
+  "users": [...],
+  "nodes": [...]
+}
+```
+
+**Import Behavior:**
+- Existing records are updated if IDs match
+- New records are created for non-existent IDs
+- Related entities must be included (e.g., forwards require tunnels)
+
+**Response:**
+```json
+{
+  "code": 0,
+  "msg": "success",
+  "data": {
+    "imported": {
+      "users": 5,
+      "nodes": 3,
+      "tunnels": 10
+    },
+    "skipped": {
+      "forwards": 2
+    }
+  }
+}
+```
+
+## POST /api/v1/backup/restore
+
+Alias for `/api/v1/backup/import`.
+
+---
+
+## Workflow: Full System Backup
+
+```bash
+# Export all data
+curl -s -X POST "${FLVX_BASE_URL}/api/v1/backup/export" \
+  -H "Authorization: ${TOKEN}" \
+  -H "Content-Type: application/json" \
+  -d '{}' > backup-$(date +%Y%m%d).json
+
+echo "Backup saved to backup-$(date +%Y%m%d).json"
+```
+
+## Workflow: Partial Export
+
+```bash
+# Export only users and tunnels
+curl -s -X POST "${FLVX_BASE_URL}/api/v1/backup/export" \
+  -H "Authorization: ${TOKEN}" \
+  -H "Content-Type: application/json" \
+  -d '{"types":["users","tunnels"]}' > partial-backup.json
+```
+
+## Workflow: Restore from Backup
+
+```bash
+# Import from backup file
+curl -s -X POST "${FLVX_BASE_URL}/api/v1/backup/import" \
+  -H "Authorization: ${TOKEN}" \
+  -H "Content-Type: application/json" \
+  -d @backup-20260226.json | jq '.'
+```
+
+## Workflow: Migrate to New Panel
+
+```bash
+# On source panel
+curl -s -X POST "${SOURCE_URL}/api/v1/backup/export" \
+  -H "Authorization: ${SOURCE_TOKEN}" \
+  -H "Content-Type: application/json" \
+  -d '{}' > migration.json
+
+# On target panel
+curl -s -X POST "${TARGET_URL}/api/v1/backup/import" \
+  -H "Authorization: ${TARGET_TOKEN}" \
+  -H "Content-Type: application/json" \
+  -d @migration.json
+```
+
+**Note:** After migration, you may need to:
+1. Reinstall node agents with new panel URL
+2. Update node secrets if they differ
+3. Reassign federation tokens
@@ -0,0 +1,149 @@
+# System Configuration API
+
+Manage system-wide settings and configurations.
+
+## POST /api/v1/config/get
+
+Get a single configuration by name. This endpoint is public (no auth required).
+
+**Request:**
+```json
+{"name": "site_name"}
+```
+
+**Response:**
+```json
+{
+  "code": 0,
+  "data": {
+    "name": "site_name",
+    "value": "My FLVX Panel",
+    "time": 1706659200000
+  }
+}
+```
+
+## POST /api/v1/config/list
+
+List all configurations (requires authentication).
+
+**Request:** `{}`
+
+**Response:**
+```json
+{
+  "code": 0,
+  "data": {
+    "site_name": "My FLVX Panel",
+    "site_logo": "https://example.com/logo.png",
+    "site_announcement": "System maintenance scheduled",
+    "captcha_enabled": "true",
+    "captcha_type": "turnstile",
+    "turnstile_site_key": "...",
+    "default_user_flow": "100",
+    "default_user_exp_days": "30"
+  }
+}
+```
+
+## POST /api/v1/config/update
+
+Batch update multiple configurations (admin only).
+
+**Request:**
+```json
+{
+  "site_name": "New Panel Name",
+  "site_announcement": "Welcome to the new panel!",
+  "default_user_flow": "50"
+}
+```
+
+Only include the keys you want to update.
+
+**Response:**
+```json
+{"code": 0, "msg": "success"}
+```
+
+## POST /api/v1/config/update-single
+
+Update a single configuration (admin only).
+
+**Request:**
+```json
+{
+  "name": "site_name",
+  "value": "My Awesome Panel"
+}
+```
+
+## POST /api/v1/announcement/get
+
+Get the site announcement (public endpoint).
+
+**Method:** GET
+
+**Response:**
+```json
+{
+  "code": 0,
+  "data": {
+    "content": "System maintenance scheduled for tonight"
+  }
+}
+```
+
+## POST /api/v1/announcement/update
+
+Update the site announcement (admin only).
+
+**Request:**
+```json
+{"content": "New announcement message"}
+```
+
+---
+
+## Common Configuration Keys
+
+| Key | Description | Example |
+|-----|-------------|---------|
+| `site_name` | Panel display name | `"My FLVX Panel"` |
+| `site_logo` | Logo URL | `"https://example.com/logo.png"` |
+| `site_announcement` | Announcement HTML | `"<p>Notice...</p>"` |
+| `captcha_enabled` | Enable captcha | `"true"` or `"false"` |
+| `captcha_type` | Captcha provider | `"turnstile"` or `"local"` |
+| `turnstile_site_key` | Cloudflare Turnstile site key | `"0x4..."` |
+| `turnstile_secret_key` | Cloudflare Turnstile secret | `"0x4..."` |
+| `default_user_flow` | Default user traffic (GB) | `"100"` |
+| `default_user_exp_days` | Default user expiry days | `"30"` |
+| `default_user_num` | Default max forwards | `"10"` |
+
+---
+
+## Example: Update Panel Name and Announcement
+
+```bash
+curl -s -X POST "${FLVX_BASE_URL}/api/v1/config/update" \
+  -H "Authorization: ${TOKEN}" \
+  -H "Content-Type: application/json" \
+  -d '{
+    "site_name": "Awesome Traffic Panel",
+    "site_announcement": "<strong>Welcome!</strong> New nodes added."
+  }'
+```
+
+## Example: Enable Cloudflare Turnstile Captcha
+
+```bash
+curl -s -X POST "${FLVX_BASE_URL}/api/v1/config/update" \
+  -H "Authorization: ${TOKEN}" \
+  -H "Content-Type: application/json" \
+  -d '{
+    "captcha_enabled": "true",
+    "captcha_type": "turnstile",
+    "turnstile_site_key": "0x4AAAAAAAAjq0JN9YQg",
+    "turnstile_secret_key": "0x4AAAAAAAAjq0JN9YQg_secret"
+  }'
+```
@@ -0,0 +1,168 @@
+# Error Codes & Handling
+
+## Response Code Field
+
+| code | Meaning | Action |
+|------|---------|--------|
+| `0` | Success | Use `data` field |
+| `-1` | Business error | Show `msg` to user |
+| `-2` | Server/DB error | Retry or report bug |
+| `401` | Unauthorized | Token expired/invalid, re-login |
+| `403` | Forbidden | Need admin privileges |
+
+## Common Error Messages (Chinese)
+
+| msg | Cause | Solution |
+|-----|-------|----------|
+| 用户名或密码错误 | Wrong credentials | Check username/password |
+| Token已过期 | Token expired | Re-login |
+| 权限不足 | Need admin | Use admin account (role_id: 0) |
+| 端口已被占用 | Port in use | Choose different port or delete conflicting forward |
+| 流量不足 | Out of traffic | Contact admin or upgrade plan |
+| 节点离线 | Node offline | Check node status, run install command |
+| 隧道不可用 | Tunnel disabled | Enable tunnel first |
+| 用户已存在 | Username taken | Choose different username |
+| 参数错误 | Invalid request | Check request body format |
+| 转发数量已达上限 | Forward limit reached | Delete unused forwards or contact admin |
+| 该隧道未分配给当前用户 | No tunnel access | Contact admin to get tunnel assigned |
+
+## Error Handling Pattern
+
+### JavaScript/TypeScript
+
+```typescript
+async function callApi<T>(endpoint: string, data: object): Promise<T> {
+  const res = await fetch(`${BASE_URL}${endpoint}`, {
+    method: "POST",
+    headers: {
+      "Content-Type": "application/json",
+      "Authorization": TOKEN,
+    },
+    body: JSON.stringify(data),
+  });
+
+  const result = await res.json();
+
+  if (result.code === 0) {
+    return result.data;
+  }
+
+  switch (result.code) {
+    case 401:
+      // Token expired - clear and retry
+      TOKEN = null;
+      throw new Error("登录已过期，请重新登录");
+    case 403:
+      throw new Error("权限不足，需要管理员权限");
+    case -2:
+      throw new Error("服务器错误，请稍后重试");
+    default:
+      throw new Error(result.msg || "操作失败");
+  }
+}
+```
+
+### Python
+
+```python
+def call_api(endpoint: str, data: dict = None) -> dict:
+    global TOKEN
+    
+    headers = {"Content-Type": "application/json"}
+    if TOKEN:
+        headers["Authorization"] = TOKEN
+    
+    resp = requests.post(f"{BASE_URL}{endpoint}", headers=headers, json=data or {})
+    result = resp.json()
+    
+    if result["code"] == 0:
+        return result.get("data")
+    
+    if result["code"] == 401:
+        TOKEN = None
+        raise Exception("登录已过期，请重新登录")
+    elif result["code"] == 403:
+        raise Exception("权限不足，需要管理员权限")
+    elif result["code"] == -2:
+        raise Exception("服务器错误，请稍后重试")
+    else:
+        raise Exception(result["msg"] or "操作失败")
+```
+
+### Bash
+
+```bash
+call_api() {
+  local endpoint="$1"
+  local data="$2"
+  
+  local response
+  response=$(curl -s -X POST "${FLVX_BASE_URL}${endpoint}" \
+    -H "Authorization: ${TOKEN}" \
+    -H "Content-Type: application/json" \
+    -d "$data")
+  
+  local code
+  code=$(echo "$response" | jq -r '.code')
+  
+  if [ "$code" == "0" ]; then
+    echo "$response" | jq '.data'
+    return 0
+  fi
+  
+  local msg
+  msg=$(echo "$response" | jq -r '.msg')
+  
+  case "$code" in
+    401) echo "Error: 登录已过期" >&2 ;;
+    403) echo "Error: 权限不足" >&2 ;;
+    -2)  echo "Error: 服务器错误" >&2 ;;
+    *)   echo "Error: $msg" >&2 ;;
+  esac
+  
+  return 1
+}
+```
+
+## Retry Logic with Auto Re-login
+
+```typescript
+async function callApiWithRetry<T>(
+  endpoint: string, 
+  data: object,
+  maxRetries = 1
+): Promise<T> {
+  let lastError: Error;
+  
+  for (let i = 0; i <= maxRetries; i++) {
+    try {
+      if (!TOKEN) {
+        await login();
+      }
+      return await callApi<T>(endpoint, data);
+    } catch (error) {
+      lastError = error;
+      if (error.message.includes("过期") || error.message.includes("expired")) {
+        TOKEN = null;  // Force re-login on next attempt
+        continue;
+      }
+      throw error;
+    }
+  }
+  
+  throw lastError!;
+}
+```
+
+## Validation Errors
+
+When request validation fails, the API returns code -1 with specific messages:
+
+| Scenario | Error Message |
+|----------|--------------|
+| Missing required field | `参数错误` or field-specific message |
+| Invalid port range | `端口范围无效` |
+| Invalid IP format | `IP地址格式错误` |
+| Invalid date | `时间格式错误` |
+| Username too short | `用户名长度不能少于3个字符` |
+| Password too weak | `密码长度不能少于6个字符` |
--- a/Show More
+++ b/Show More