style: apply frosted glass backgrounds to inner cards and nested elements (#421)

Replaced solid backgrounds (bg-white, bg-default-50) with high-blur
translucent glass (backdrop-blur-3xl) inside tunnel topology nodes,
dashboard forward rules, and flow charts. Matched the aesthetic of the
inner components to inherit the adaptive light/dark mode root
backgrounds.

.claude/settings.json

@@ -1,84 +0,0 @@
-{
-  "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/**)"
-    ]
-  }
-}

.entire/metadata/ses_34dfc44d5ffedfgo4G9wPONyXC/context.md

@@ -1,24 +0,0 @@
-# Session Context
-
-Session ID: ses_34dfc44d5ffedfgo4G9wPONyXC
-Commit Message: 在agent.md里规定，每次计划都必须写一个计划文档，md格式，按序号增加和以计划的总结命名，每次完成一个任务做好标记
-
-## Prompts
-
-### Prompt 1
-
-在agent.md里规定，每次计划都必须写一个计划文档，md格式，按序号增加和以计划的总结命名，每次完成一个任务做好标记
-
-## Summary
-
-已按你的要求更新完成。
-
-我在 `AGENTS.md` 里新增了 `## PLAN DOCUMENT RULE` 章节，内容包括：
-
-- 每次新实现计划都必须有独立 Markdown 计划文档  
-- 计划文档统一放在 `plans/` 目录  
-- 文件名采用递增序号 + 计划摘要：`NNN-<plan-summary>.md`  
-- 序号必须每次 +1  
-- 文档内使用任务清单，并在每个任务完成后立即打勾标记  
-
-修改位置：`AGENTS.md`

.entire/metadata/ses_34dfc44d5ffedfgo4G9wPONyXC/prompt.txt

@@ -1 +0,0 @@
-在agent.md里规定，每次计划都必须写一个计划文档，md格式，按序号增加和以计划的总结命名，每次完成一个任务做好标记

.entire/metadata/ses_34dfc44d5ffedfgo4G9wPONyXC/summary.txt

@@ -1,11 +0,0 @@
-已按你的要求更新完成。
-
-我在 `AGENTS.md` 里新增了 `## PLAN DOCUMENT RULE` 章节，内容包括：
-
-- 每次新实现计划都必须有独立 Markdown 计划文档  
-- 计划文档统一放在 `plans/` 目录  
-- 文件名采用递增序号 + 计划摘要：`NNN-<plan-summary>.md`  
-- 序号必须每次 +1  
-- 文档内使用任务清单，并在每个任务完成后立即打勾标记  
-
-修改位置：`AGENTS.md`

.entire/metadata/ses_34dfda207ffeiBV2rCgJW708ip/context.md

@@ -1,71 +0,0 @@
-# Session Context
-
-Session ID: ses_34dfda207ffeiBV2rCgJW708ip
-Commit Message: 配置下发也没兼容，请全量检查一下，哪些功能需要一起改造
-
-## Prompts
-
-### Prompt 1
-
-211 任务的没有完全完成1. 选择IP后诊断还会诊断默认IP
-2. 选择隧道出口IP后，入口还是会链接默认IP，没有链接选择的IP
-请分析后制定修复计划
-
-### Prompt 2
-
-配置下发也没兼容，请全量检查一下，哪些功能需要一起改造
-
-## Summary
-
-你提得很对，我按“配置下发全链路”重新过了一遍（只读分析）。结论是：**需要一起改造的不是一个点，而是“诊断链路 + 重部署链路 + 回归测试链路”**。
-
-目前状态可以分成三类：
-
-- **已兼容（创建/更新时下发）**
-  - 隧道创建/更新时，`connectIp` 已进入运行时下发选择逻辑（`selectTunnelDialHost`）。
-  - 本地/联邦 runtime apply 都会吃 `target.ConnectIP`（前提是 state 里有值）。
-  - 参考：`go-backend/internal/http/handler/mutations.go:2588`, `go-backend/internal/http/handler/mutations.go:2348`
-
-- **未兼容（你反馈的核心问题）**
-  - 诊断链路未传 `connectIp`，导致总走默认IP。
-  - 参考：`go-backend/internal/http/handler/control_plane.go:75`, `go-backend/internal/http/handler/control_plane.go:1102`
-
-- **半兼容（配置重建时丢字段）**
-  - 重部署时从 DB 重建 runtime state，**没把 `ConnectIP` 带回去**，所以 redeploy 后会回退默认IP。
-  - 参考：`go-backend/internal/http/handler/mutations.go:883`, `go-backend/internal/http/handler/mutations.go:897`
-
----
-
-**需要一起改造的功能范围（建议一次性做完）**
-
-- `诊断（非流式 + 流式）`
-  - 隧道诊断、转发诊断都要改（共用 `prepare*Diagnosis` + `appendChainHopDiagnosis`）。
-  - 流式 start 预览项也要改，否则 UI 一开始仍显示默认IP。
-  - 目标文件：`go-backend/internal/http/handler/control_plane.go`, `go-backend/internal/http/handler/diagnosis_stream.go`
-
-- `配置下发（重部署路径）`
-  - 单条重部署、批量重部署都依赖 `reconstructTunnelState`，必须补 `ConnectIP` 回填。
-  - 目标文件：`go-backend/internal/http/handler/mutations.go`
-
-- `联邦节点运行时下发一致性`
-  - 逻辑本身已支持 `ConnectIP`，但受上一步 state 丢字段影响；修复后自动恢复一致。
-  - 重点验证：remote middle hop `ApplyRole.Targets` 的 Host 选取。
-
-- `回归测试`
-  - 新增诊断用例：选了 `connectIp` 后，`targetIp` 必须是选中值（tunnel/forward + stream start/item）。
-  - 新增重部署用例：redeploy 后仍使用 `connectIp`，不回退默认IP。
-  - 目标文件建议：`go-backend/tests/contract/diagnosis_contract_test.go`，补 handler 级或 contract 级 redeploy 用例。
-
----
-
-**实施计划（修复包）**
-
-1. 修 `diagnosis` 调用链：所有 `resolveChainProbeTarget` 调用传入 `workItem.toNode.ConnectIP`。  
-2. 修 `reconstructTunnelState`：出口节点和中继节点都回填 `ConnectIP`。  
-3. 补测试：覆盖“诊断用选中IP”“重部署不丢IP”“connectIp为空仍走默认”的三组场景。  
-4. 联调验证：创建/更新、诊断、单重部署、批量重部署、联邦节点场景各跑一遍。
-
----
-
-我建议按这个范围做成一次完整修复（避免只修诊断后你再次遇到“重部署又回退”的问题）。  
-如果你同意，我下一步就按这个“全量改造范围”进入实施。

.entire/metadata/ses_34dfda207ffeiBV2rCgJW708ip/prompt.txt

@@ -1,7 +0,0 @@
-211 任务的没有完全完成1. 选择IP后诊断还会诊断默认IP
-2. 选择隧道出口IP后，入口还是会链接默认IP，没有链接选择的IP
-请分析后制定修复计划
-
----
-
-配置下发也没兼容，请全量检查一下，哪些功能需要一起改造

.entire/metadata/ses_34dfda207ffeiBV2rCgJW708ip/summary.txt

@@ -1,52 +0,0 @@
-你提得很对，我按“配置下发全链路”重新过了一遍（只读分析）。结论是：**需要一起改造的不是一个点，而是“诊断链路 + 重部署链路 + 回归测试链路”**。
-
-目前状态可以分成三类：
-
-- **已兼容（创建/更新时下发）**
-  - 隧道创建/更新时，`connectIp` 已进入运行时下发选择逻辑（`selectTunnelDialHost`）。
-  - 本地/联邦 runtime apply 都会吃 `target.ConnectIP`（前提是 state 里有值）。
-  - 参考：`go-backend/internal/http/handler/mutations.go:2588`, `go-backend/internal/http/handler/mutations.go:2348`
-
-- **未兼容（你反馈的核心问题）**
-  - 诊断链路未传 `connectIp`，导致总走默认IP。
-  - 参考：`go-backend/internal/http/handler/control_plane.go:75`, `go-backend/internal/http/handler/control_plane.go:1102`
-
-- **半兼容（配置重建时丢字段）**
-  - 重部署时从 DB 重建 runtime state，**没把 `ConnectIP` 带回去**，所以 redeploy 后会回退默认IP。
-  - 参考：`go-backend/internal/http/handler/mutations.go:883`, `go-backend/internal/http/handler/mutations.go:897`
-
----
-
-**需要一起改造的功能范围（建议一次性做完）**
-
-- `诊断（非流式 + 流式）`
-  - 隧道诊断、转发诊断都要改（共用 `prepare*Diagnosis` + `appendChainHopDiagnosis`）。
-  - 流式 start 预览项也要改，否则 UI 一开始仍显示默认IP。
-  - 目标文件：`go-backend/internal/http/handler/control_plane.go`, `go-backend/internal/http/handler/diagnosis_stream.go`
-
-- `配置下发（重部署路径）`
-  - 单条重部署、批量重部署都依赖 `reconstructTunnelState`，必须补 `ConnectIP` 回填。
-  - 目标文件：`go-backend/internal/http/handler/mutations.go`
-
-- `联邦节点运行时下发一致性`
-  - 逻辑本身已支持 `ConnectIP`，但受上一步 state 丢字段影响；修复后自动恢复一致。
-  - 重点验证：remote middle hop `ApplyRole.Targets` 的 Host 选取。
-
-- `回归测试`
-  - 新增诊断用例：选了 `connectIp` 后，`targetIp` 必须是选中值（tunnel/forward + stream start/item）。
-  - 新增重部署用例：redeploy 后仍使用 `connectIp`，不回退默认IP。
-  - 目标文件建议：`go-backend/tests/contract/diagnosis_contract_test.go`，补 handler 级或 contract 级 redeploy 用例。
-
----
-
-**实施计划（修复包）**
-
-1. 修 `diagnosis` 调用链：所有 `resolveChainProbeTarget` 调用传入 `workItem.toNode.ConnectIP`。  
-2. 修 `reconstructTunnelState`：出口节点和中继节点都回填 `ConnectIP`。  
-3. 补测试：覆盖“诊断用选中IP”“重部署不丢IP”“connectIp为空仍走默认”的三组场景。  
-4. 联调验证：创建/更新、诊断、单重部署、批量重部署、联邦节点场景各跑一遍。
-
----
-
-我建议按这个范围做成一次完整修复（避免只修诊断后你再次遇到“重部署又回退”的问题）。  
-如果你同意，我下一步就按这个“全量改造范围”进入实施。

.entire/metadata/ses_34e5eb41fffeLiCL7ddWGvToa3/prompt.txt

@@ -1 +0,0 @@
-提交全部变更并且push，创建pr合并，发布新tag，alpha版本

.entire/metadata/ses_34e5eb41fffeLiCL7ddWGvToa3/summary.txt

@@ -1,10 +0,0 @@
-已完成：
-
-1. **提交**: `fix: apply custom IP binding to forward and tunnel chain services` (e383359)
-2. **PR**: [#247](https://github.com/Sagit-chu/flvx/pull/247) - 已合并
-3. **Tag**: `2.1.7-alpha7` 已创建并推送
-
-新功能：
-- 自定义 IP 绑定支持（节点、隧道、转发）
-- 转发列表紧凑模式与隧道组折叠/排序
-- 迁移测试增强

.entire/metadata/ses_34e68d081ffeyr3uWQwm5venHp/context.md

@@ -1,40 +0,0 @@
-# Session Context
-
-Session ID: ses_34e68d081ffeyr3uWQwm5venHp
-Commit Message: 实施
-
-## Prompts
-
-### Prompt 1
-
-211任务中，如果选择了指定的入口IP或者出口IP，在节点上应该只监听这个IP地址，而不再是[::]，请检查
-
-### Prompt 2
-
-connectIp 同时用于“上游拨号目标 + 本节点监听绑定”
-
-### Prompt 3
-
-实施
-
-## Summary
-
-已实施完成，并且按你确认的语义实现为：`connectIp` 同时用于“上游拨号目标 + 本节点监听绑定”。
-
-- 转发服务下发现在会优先使用 `forward_port.in_ip` 作为监听地址，不再固定用节点默认 `[::]`。
-- 隧道服务下发现在会优先使用 `connectIp` 作为监听地址；为空时才回退到节点默认监听地址。
-- IPv6 监听地址统一通过 `processServerAddress(...)` 处理，确保带方括号格式正确。
-
-改动位置：
-- `go-backend/internal/http/handler/control_plane.go:284`
-- `go-backend/internal/http/handler/control_plane.go:1306`
-- `go-backend/internal/http/handler/mutations.go:2646`
-
-新增测试：
-- `go-backend/internal/http/handler/control_plane_test.go:69`
-- `go-backend/internal/http/handler/control_plane_test.go:86`
-- `go-backend/internal/http/handler/dual_stack_test.go:33`
-- `go-backend/internal/http/handler/dual_stack_test.go:49`
-
-验证结果：
-- 已运行 `go test ./internal/http/handler/...`，全部通过。

.entire/metadata/ses_34e68d081ffeyr3uWQwm5venHp/prompt.txt

@@ -1,9 +0,0 @@
-211任务中，如果选择了指定的入口IP或者出口IP，在节点上应该只监听这个IP地址，而不再是[::]，请检查
-
----
-
-connectIp 同时用于“上游拨号目标 + 本节点监听绑定”
-
----
-
-实施

.entire/metadata/ses_34e68d081ffeyr3uWQwm5venHp/summary.txt

@@ -1,19 +0,0 @@
-已实施完成，并且按你确认的语义实现为：`connectIp` 同时用于“上游拨号目标 + 本节点监听绑定”。
-
-- 转发服务下发现在会优先使用 `forward_port.in_ip` 作为监听地址，不再固定用节点默认 `[::]`。
-- 隧道服务下发现在会优先使用 `connectIp` 作为监听地址；为空时才回退到节点默认监听地址。
-- IPv6 监听地址统一通过 `processServerAddress(...)` 处理，确保带方括号格式正确。
-
-改动位置：
-- `go-backend/internal/http/handler/control_plane.go:284`
-- `go-backend/internal/http/handler/control_plane.go:1306`
-- `go-backend/internal/http/handler/mutations.go:2646`
-
-新增测试：
-- `go-backend/internal/http/handler/control_plane_test.go:69`
-- `go-backend/internal/http/handler/control_plane_test.go:86`
-- `go-backend/internal/http/handler/dual_stack_test.go:33`
-- `go-backend/internal/http/handler/dual_stack_test.go:49`
-
-验证结果：
-- 已运行 `go test ./internal/http/handler/...`，全部通过。

.entire/metadata/ses_34e7b0439ffezPnSwdQLu4C5Sb/prompt.txt

@@ -1 +0,0 @@
-提交全部变更并且push，创建pr合并，发布新tag，alpha版本

.entire/metadata/ses_34e7b0439ffezPnSwdQLu4C5Sb/summary.txt

@@ -1,5 +0,0 @@
-✅ 完成！
-
-- 提交: `9cf9f4f` (feat: add comprehensive migration test for legacy columns)
-- PR: [#245](https://github.com/Sagit-chu/flvx/pull/245) 已合并
-- 新 tag: `2.1.7-alpha6` 已发布

.entire/metadata/ses_34ebc12c1ffePWN7yC0z9iz5Lw/context.md

@@ -1,20 +0,0 @@
-# Session Context
-
-Session ID: ses_34ebc12c1ffePWN7yC0z9iz5Lw
-Commit Message: 合并pr，然后发布新tag，alpha版本
-
-## Prompts
-
-### Prompt 1
-
-提交全部变更并且push
-
-### Prompt 2
-
-合并pr，然后发布新tag，alpha版本
-
-## Summary
-
-已完成：
-- PR #244 已合并到 main
-- 新 tag `2.1.7-alpha5` 已创建并推送

.entire/metadata/ses_34ebc12c1ffePWN7yC0z9iz5Lw/prompt.txt

@@ -1,5 +0,0 @@
-提交全部变更并且push
-
----
-
-合并pr，然后发布新tag，alpha版本

.entire/metadata/ses_34ebc12c1ffePWN7yC0z9iz5Lw/summary.txt

@@ -1,3 +0,0 @@
-已完成：
-- PR #244 已合并到 main
-- 新 tag `2.1.7-alpha5` 已创建并推送

.entire/metadata/ses_34ec18cadffeoVVSjfPXGJaxBu/context.md

@@ -1,44 +0,0 @@
-# Session Context
-
-Session ID: ses_34ec18cadffeoVVSjfPXGJaxBu
-Commit Message: 再做一轮“跨表全量列对比（model vs 旧库补列逻辑）
-
-## Prompts
-
-### Prompt 1
-
-211任务全量再逐一确认一下是否全部完成，并且功能完成
-
-### Prompt 2
-
-添加额外ip的时候报错：SQL logic error: no such column: extra_ips (1)
-
-### Prompt 3
-
-全量排查一下还有没有类似的bug
-
-### Prompt 4
-
-再做一轮“跨表全量列对比（model vs 旧库补列逻辑）
-
-## Summary
-
-已完成这一轮“跨表全量列对比（model vs 旧库补列逻辑）”，并做了可执行验证。
-
-我做了什么：
-
-- 对比了 `model.Node` / `model.Tunnel` 字段与 `prepareSQLiteLegacyColumns` 的补列清单。
-- 结论：
-  - `Node` 目前应补的历史增量列：`server_ip_v4`, `server_ip_v6`, `extra_ips`, `tcp_listen_addr`, `udp_listen_addr`, `inx`, `is_remote`, `remote_url`, `remote_token`, `remote_config`
-  - `Tunnel` 应补：`inx`, `ip_preference`
-- 我已把这个对齐结果固化为回归测试，新增了一个“更老版本库”场景验证：
-  - 新测试：`TestOpenMigratesVeryLegacyNodeAndTunnelColumns`
-  - 文件：`go-backend/tests/contract/migration_contract_test.go`
-  - 该测试从极简旧表结构启动，验证上述所有列都会被自动补齐。
-- 测试结果：通过
-  - `go test ./tests/contract -run "TestOpenMigratesLegacyNodeDualStackColumns|TestOpenMigratesVeryLegacyNodeAndTunnelColumns"`
-
-最终结论（本轮排查范围内）：
-
-- **Node/Tunnel 这条旧库升级链路已对齐且有测试兜底**。
-- 你这类 “no such column” 的同类风险，针对这两个核心表已经基本封住。

.entire/metadata/ses_34ec18cadffeoVVSjfPXGJaxBu/prompt.txt

@@ -1,13 +0,0 @@
-211任务全量再逐一确认一下是否全部完成，并且功能完成
-
----
-
-添加额外ip的时候报错：SQL logic error: no such column: extra_ips (1)
-
----
-
-全量排查一下还有没有类似的bug
-
----
-
-再做一轮“跨表全量列对比（model vs 旧库补列逻辑）

.entire/metadata/ses_34ec18cadffeoVVSjfPXGJaxBu/summary.txt

@@ -1,19 +0,0 @@
-已完成这一轮“跨表全量列对比（model vs 旧库补列逻辑）”，并做了可执行验证。
-
-我做了什么：
-
-- 对比了 `model.Node` / `model.Tunnel` 字段与 `prepareSQLiteLegacyColumns` 的补列清单。
-- 结论：
-  - `Node` 目前应补的历史增量列：`server_ip_v4`, `server_ip_v6`, `extra_ips`, `tcp_listen_addr`, `udp_listen_addr`, `inx`, `is_remote`, `remote_url`, `remote_token`, `remote_config`
-  - `Tunnel` 应补：`inx`, `ip_preference`
-- 我已把这个对齐结果固化为回归测试，新增了一个“更老版本库”场景验证：
-  - 新测试：`TestOpenMigratesVeryLegacyNodeAndTunnelColumns`
-  - 文件：`go-backend/tests/contract/migration_contract_test.go`
-  - 该测试从极简旧表结构启动，验证上述所有列都会被自动补齐。
-- 测试结果：通过
-  - `go test ./tests/contract -run "TestOpenMigratesLegacyNodeDualStackColumns|TestOpenMigratesVeryLegacyNodeAndTunnelColumns"`
-
-最终结论（本轮排查范围内）：
-
-- **Node/Tunnel 这条旧库升级链路已对齐且有测试兜底**。
-- 你这类 “no such column” 的同类风险，针对这两个核心表已经基本封住。

.entire/metadata/ses_34eec2495ffeJvDq7SlEs8mRoH/context.md

@@ -1,14 +0,0 @@
-# Session Context
-
-Session ID: ses_34eec2495ffeJvDq7SlEs8mRoH
-Commit Message: 提交全部变更并且push，创建pr
-
-## Prompts
-
-### Prompt 1
-
-提交全部变更并且push，创建pr
-
-## Summary
-
-已提交并推送，PR已创建: https://github.com/Sagit-chu/flvx/pull/new/opencode/mighty-nebula

.entire/metadata/ses_34eec2495ffeJvDq7SlEs8mRoH/prompt.txt

@@ -1 +0,0 @@
-提交全部变更并且push，创建pr

.entire/metadata/ses_34eec2495ffeJvDq7SlEs8mRoH/summary.txt

@@ -1 +0,0 @@
-已提交并推送，PR已创建: https://github.com/Sagit-chu/flvx/pull/new/opencode/mighty-nebula

.entire/metadata/ses_34f0fe1d2ffeH3PJRyokYati7T/context.md

@@ -1,14 +0,0 @@
-# Session Context
-
-Session ID: ses_34f0fe1d2ffeH3PJRyokYati7T
-Commit Message: 把main更新到本分支
-
-## Prompts
-
-### Prompt 1
-
-把main更新到本分支
-
-## Summary
-
-已完成 `origin/main` 合并到当前分支（Fast-forward）。之前的更改已恢复，`forward.tsx` 自动合并成功。

.entire/metadata/ses_34f0fe1d2ffeH3PJRyokYati7T/prompt.txt

@@ -1 +0,0 @@
-把main更新到本分支

.entire/metadata/ses_34f0fe1d2ffeH3PJRyokYati7T/summary.txt

@@ -1 +0,0 @@
-已完成 `origin/main` 合并到当前分支（Fast-forward）。之前的更改已恢复，`forward.tsx` 自动合并成功。

.entire/metadata/ses_352121719ffe8z9PXLcwYsCV36/prompt.txt

@@ -1,11 +0,0 @@
-探索节点API和数据访问层的完整实现：
-
-1. 在 `go-backend/internal/store/repo/` 查找节点创建/更新的函数
-2. 查找节点数据如何返回给前端（JSON序列化）
-3. 查找 `nodeRecord` 结构体的定义和使用
-4. 理解 ServerIP/ServerIPV4/ServerIPV6 字段如何被处理
-
-返回：
-- 节点CRUD相关的Repository方法
-- 节点数据返回给前端的格式
-- 扩展节点IP字段需要改动的位置

.entire/metadata/ses_352121719ffe8z9PXLcwYsCV36/summary.txt

@@ -1,215 +0,0 @@
-Based on my thorough exploration, here's a comprehensive analysis of the node API and data access layer:
-
----
-
-## 节点API和数据访问层完整分析
-
-### 1. 节点CRUD相关Repository方法
-
-#### 核心方法 (`go-backend/internal/store/repo/`)
-
-| 方法 | 文件位置 | 功能 |
-|------|----------|------|
-| `CreateNode()` | `repository_mutations.go:199` | 创建节点，处理 serverIP/serverIPV4/serverIPV6 |
-| `UpdateNode()` | `repository_mutations.go:241` | 更新节点，包含所有IP字段 |
-| `DeleteNodeCascade()` | `repository_mutations.go:299` | 级联删除节点（关联 ForwardPort、ChainTunnel、FederationTunnelBinding） |
-| `GetNodeByID()` | `repository.go:555` | 通过ID获取节点 |
-| `GetNodeBySecret()` | `repository.go:540` | 通过Secret获取节点 |
-| `GetNodeStatusFields()` | `repository_mutations.go:229` | 获取节点状态字段 |
-| `GetNodeSecret()` | `repository_mutations.go:263` | 获取节点密钥 |
-| `GetNodeRemoteFields()` | `repository_mutations.go:317` | 获取远程节点字段 |
-| `GetNodePortRange()` | `repository_mutations.go:336` | 获取节点端口范围 |
-| `UpdateNodeOrder()` | `repository_mutations.go:287` | 更新节点排序 |
-| `UpdateNodeOnline()` | `repository.go:570` | 更新节点在线状态 |
-| `UpdateNodeStatus()` | `repository.go:580` | 更新节点状态 |
-| `ListNodes()` | `repository.go:625` | 列出所有节点（返回JSON map格式） |
-| `GetNodeRecord()` | `repository_control.go:131` | 获取 NodeRecord 视图对象 |
-| `CreateRemoteNode()` | `repository_federation.go:266` | 创建远程节点（联邦场景） |
-| `exportNodes()` | `repository.go:1660` | 导出节点数据（用于备份） |
-| `importNodes()` | `repository.go:2016` | 导入节点数据（用于恢复） |
-
----
-
-### 2. 节点数据结构定义
-
-#### GORM模型 (`model.Node` - 数据库存储)
-**文件:** `/go-backend/internal/store/model/model.go:59-82`
-```go
-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)"`  // 注意：V大写
-    ServerIPV6    sql.NullString `gorm:"column:server_ip_v6;type:varchar(100)"`
-    // ... 其他字段
-}
-```
-
-#### 控制平面视图 (`model.NodeRecord`)
-**文件:** `/go-backend/internal/store/model/model.go:515-531`
-```go
-type NodeRecord struct {
-    ID            int64
-    Name          string
-    ServerIP      string
-    ServerIPv4    string   // 注意：v小写
-    ServerIPv6    string
-    Status        int
-    PortRange     string
-    // ... 其他字段
-}
-```
-
-#### JSON导出格式 (`model.NodeBackup`)
-**文件:** `/go-backend/internal/store/model/model.go:333-356`
-```go
-type NodeBackup struct {
-    ID            int64  `json:"id"`
-    Name          string `json:"name"`
-    ServerIP      string `json:"serverIp"`
-    ServerIPv4    string `json:"serverIpV4,omitempty"`
-    ServerIPv6    string `json:"serverIpV6,omitempty"`
-    // ... 其他字段
-}
-```
-
-#### Handler层别名
-**文件:** `/go-backend/internal/http/handler/control_plane.go:25`
-```go
-type nodeRecord = model.NodeRecord  // 类型别名
-```
-
----
-
-### 3. 节点数据返回给前端的格式
-
-#### ListNodes API (`repository.go:625-652`)
-```go
-// 返回 map[string]interface{} 格式
-items = append(items, map[string]interface{}{
-    "id": n.ID, "inx": n.Inx, "name": n.Name,
-    "ip": n.ServerIP, "serverIp": n.ServerIP,      // ip和serverIp都返回
-    "serverIpV4":    nullableString(n.ServerIPV4),
-    "serverIpV6":    nullableString(n.ServerIPV6),
-    "port":          n.Port,
-    "tcpListenAddr": n.TCPListenAddr,
-    "udpListenAddr": n.UDPListenAddr,
-    "version":       nullableString(n.Version),
-    "http":          n.HTTP, "tls": n.TLS, "socks": n.Socks,
-    "status": n.Status, "isRemote": n.IsRemote,
-    // ...
-})
-```
-
-#### API端点
-| 端点 | Handler | 功能 |
-|------|---------|------|
-| `POST /api/v1/node/list` | `h.nodeList` | 列出节点 |
-| `POST /api/v1/node/create` | `h.nodeCreate` | 创建节点 |
-| `POST /api/v1/node/update` | `h.nodeUpdate` | 更新节点 |
-| `POST /api/v1/node/delete` | `h.nodeDelete` | 删除节点 |
-
----
-
-### 4. ServerIP/ServerIPV4/ServerIPV6 字段处理逻辑
-
-#### 字段命名约定
-| 层级 | 字段名 | 数据库列名 |
-|------|--------|-----------|
-| `model.Node` | `ServerIPV4`, `ServerIPV6` | `server_ip_v4`, `server_ip_v6` |
-| `model.NodeRecord` | `ServerIPv4`, `ServerIPv6` | - (内存结构) |
-| `model.NodeBackup` | `ServerIPv4`, `ServerIPv6` | - (JSON) |
-| 前端JSON | `serverIpV4`, `serverIpV6` | - |
-
-#### 模型转换函数 (`repository_control.go:161-201`)
-```go
-func nodeRecordFromModel(n *model.Node) *model.NodeRecord {
-    rec := &model.NodeRecord{
-        ID:            n.ID,
-        Name:          n.Name,
-        ServerIP:      n.ServerIP,
-        // ...
-    }
-    if n.ServerIPV4.Valid {
-        rec.ServerIPv4 = strings.TrimSpace(n.ServerIPV4.String)
-    }
-    if n.ServerIPV6.Valid {
-        rec.ServerIPv6 = strings.TrimSpace(n.ServerIPV6.String)
-    }
-    // ...
-}
-```
-
-#### Dual-Stack辅助函数 (`mutations.go:2715-2772`)
-```go
-// 判断节点是否支持IPv4
-func nodeSupportsV4(node *nodeRecord) bool {
-    if strings.TrimSpace(node.ServerIPv4) != "" { return true }
-    if strings.TrimSpace(node.ServerIPv6) != "" { return false }
-    // 回退到 ServerIP 判断
-    legacy := strings.Trim(strings.TrimSpace(node.ServerIP), "[]")
-    if ip := net.ParseIP(legacy); ip != nil {
-        return ip.To4() != nil
-    }
-    return true
-}
-
-// 选择IPv4地址（优先显式字段，回退ServerIP）
-func pickNodeAddressV4(node *nodeRecord) string {
-    if v := strings.TrimSpace(node.ServerIPv4); v != "" { return v }
-    return strings.TrimSpace(node.ServerIP)
-}
-```
-
----
-
-### 5. 扩展节点IP字段需要改动的位置
-
-如果要添加新的IP字段（如 `ServerIPV4Alt`），需要修改以下位置：
-
-#### A. 模型层 (`go-backend/internal/store/model/model.go`)
-1. **`model.Node`** - 添加 GORM 字段定义（约第64行）
-2. **`model.NodeRecord`** - 添加视图字段（约第520行）
-3. **`model.NodeBackup`** - 添加JSON字段（约第338行）
-
-#### B. Repository层 (`go-backend/internal/store/repo/`)
-1. **`repository_mutations.go`**
-   - `CreateNode()` 参数和赋值（约第199-227行）
-   - `UpdateNode()` 参数和Updates map（约第241-261行）
-
-2. **`repository_control.go`**
-   - `nodeRecordFromModel()` 转换逻辑（约第161-201行）
-
-3. **`repository_federation.go`**
-   - `CreateRemoteNode()` 参数和赋值（约第266-294行）
-
-4. **`repository.go`**
-   - `ListNodes()` JSON返回格式（约第625-652行）
-   - `exportNodes()` 导出逻辑（约第1660-1700行）
-   - `importNodes()` 导入逻辑（约第2016-2057行）
-   - `prepareSQLiteLegacyColumns()` 迁移逻辑（约第263行）
-
-#### C. Handler层 (`go-backend/internal/http/handler/`)
-1. **`mutations.go`**
-   - `nodeCreate()` 请求参数解析（约第234-279行）
-   - `nodeUpdate()` 请求参数解析（约第281-336行）
-   - `nodeSupportsV4/V6()` 函数逻辑（约第2715-2772行）
-   - `pickNodeAddressV4/V6()` 函数逻辑
-
-#### D. 测试层 (`go-backend/tests/contract/`)
-所有 contract test 中的 `INSERT INTO node` 语句需要更新字段列表
-
----
-
-### 关键文件汇总
-
-| 文件 | 用途 |
-|------|------|
-| `/go-backend/internal/store/model/model.go` | 数据模型定义 |
-| `/go-backend/internal/store/repo/repository_mutations.go` | CRUD操作实现 |
-| `/go-backend/internal/store/repo/repository_control.go` | 控制平面查询+模型转换 |
-| `/go-backend/internal/store/repo/repository_federation.go` | 联邦节点操作 |
-| `/go-backend/internal/store/repo/repository.go` | 核心查询+导出导入 |
-| `/go-backend/internal/http/handler/mutations.go` | HTTP API处理器 |
-| `/go-backend/internal/http/handler/control_plane.go` | 控制平面API |

.entire/metadata/ses_35212171dffd9vra00U17BWVxP/prompt.txt

@@ -1,11 +0,0 @@
-探索隧道链路构建时下一跳连接地址的选择流程：
-
-1. 在 `control_plane.go` 中查找隧道链路构建逻辑
-2. 查找 `applyTunnelRuntime` 或类似函数如何向节点发送命令
-3. 理解 hop 节点如何连接到下一个节点（连接地址从哪里来）
-4. 查找 `ChainTunnel` 表的 `Port` 字段如何被使用
-
-返回：
-- 隧道链路配置发送到节点的代码位置
-- 下一跳连接地址是如何确定的
-- 修改连接地址需要改动的关键位置

.entire/metadata/ses_35212171dffd9vra00U17BWVxP/summary.txt

@@ -1,173 +0,0 @@
-根据我的分析，以下是隧道链路构建时下一跳连接地址选择流程的完整报告：
-
----
-
-## 隧道链路构建流程分析报告
-
-### 1. 隧道链路配置发送到节点的代码位置
-
-**主函数**: `applyTunnelRuntime()` 
-- 文件: `go-backend/internal/http/handler/mutations.go`
-- 行号: 2454-2521
-
-**核心流程**:
-
-```
-applyTunnelRuntime (L2454)
-├── 入口节点: 发送 AddChains 命令 (L2474)
-├── 跳转节点: 发送 AddChains (L2496) + AddService (L2502) 命令
-└── 出口节点: 发送 AddService 命令 (L2514)
-```
-
-**配置构建函数**:
-| 函数 | 位置 | 作用 |
-|------|------|------|
-| `buildTunnelChainConfig()` | L2567-2624 | 构建转发链配置 |
-| `buildTunnelChainServiceConfig()` | L2626-2652 | 构建服务配置 |
-| `selectTunnelDialHost()` | L2654-2699 | **选择下一跳连接地址** |
-
----
-
-### 2. 下一跳连接地址是如何确定的
-
-**地址选择核心函数**: `selectTunnelDialHost()` (L2654-2699)
-
-```go
-// 关键逻辑 (简化版)
-func selectTunnelDialHost(fromNode, toNode *nodeRecord, ipPreference string) (string, error) {
-    // 1. 检测源节点和目标节点的 IPv4/IPv6 支持
-    fromV4 := nodeSupportsV4(fromNode)
-    fromV6 := nodeSupportsV6(fromNode)
-    toV4 := nodeSupportsV4(toNode)
-    toV6 := nodeSupportsV6(toNode)
-    
-    // 2. 根据偏好选择地址
-    switch ipPreference {
-    case "v6":  // 优先 IPv6
-        if fromV6 && toV6 { return pickNodeAddressV6(toNode) }
-        if fromV4 && toV4 { return pickNodeAddressV4(toNode) }
-    case "v4":  // 优先 IPv4
-        if fromV4 && toV4 { return pickNodeAddressV4(toNode) }
-        if fromV6 && toV6 { return pickNodeAddressV6(toNode) }
-    default:    // 默认优先 IPv4
-        if fromV4 && toV4 { return pickNodeAddressV4(toNode) }
-        if fromV6 && toV6 { return pickNodeAddressV6(toNode) }
-    }
-    // 3. 不兼容时报错
-    return "", fmt.Errorf("节点链路不兼容")
-}
-```
-
-**地址选择优先级** (在 `pickNodeAddressV4/V6` 中, L2755-2773):
-- **IPv4**: `ServerIPv4` > `ServerIP` (旧字段)
-- **IPv6**: `ServerIPv6` > `ServerIP` (旧字段)
-
-**端口来源** (在 `buildTunnelChainConfig` 中, L2585-2588):
-```go
-port := target.Port  // 来自 ChainTunnel.Port 字段
-if port <= 0 {
-    return nil, errors.New("节点端口不能为空")
-}
-```
-
----
-
-### 3. ChainTunnel.Port 字段的使用流程
-
-**数据模型** (`model.go` L127-138):
-```go
-type ChainTunnel struct {
-    ID        int64
-    TunnelID  int64
-    ChainType string      // "1"=入口, "2"=跳转, "3"=出口
-    NodeID    int64
-    Port      sql.NullInt64  // ★ 连接端口
-    Strategy  sql.NullString
-    Inx       sql.NullInt64  // 跳转序号
-    Protocol  sql.NullString
-}
-```
-
-**Port 字段流转**:
-
-```
-创建隧道时
-    │
-    ▼
-prepareTunnelCreateState (L1970)
-├── 出口节点: 从请求读取 port，若为空则调用 PickNodePortTx 自动分配
-├── 跳转节点: 从请求读取 port，若为空则调用 PickNodePortTx 自动分配
-    │
-    ▼
-replaceTunnelChainsTx (L2775) 
-└── CreateChainTunnelTx 写入数据库 (L2809, L2837)
-    │
-    ▼
-读取/重建状态时
-    │
-    ▼
-ListChainNodesForTunnel (repository_control.go L280)
-└── 从 chain_tunnel 表读取 Port 字段 (L295)
-    │
-    ▼
-reconstructTunnelState (L845)
-└── 将 Port 复制到 tunnelRuntimeNode.Port (L887, L901)
-    │
-    ▼
-buildTunnelChainConfig (L2567)
-└── 使用 target.Port 构建连接地址 (L2585)
-```
-
----
-
-### 4. 修改连接地址需要改动的关键位置
-
-如果要修改下一跳连接地址的选择逻辑，需要关注以下位置：
-
-| 修改目标 | 文件 | 行号 | 函数 |
-|---------|------|------|------|
-| **IP地址选择策略** | `mutations.go` | L2654-2699 | `selectTunnelDialHost()` |
-| **IPv4地址提取** | `mutations.go` | L2755-2763 | `pickNodeAddressV4()` |
-| **IPv6地址提取** | `mutations.go` | L2765-2773 | `pickNodeAddressV6()` |
-| **端口获取** | `mutations.go` | L2585-2588 | `buildTunnelChainConfig()` |
-| **端口分配逻辑** | `repository_mutations.go` | ~L459 | `PickNodePortTx()` |
-| **端口写入数据库** | `repository_mutations.go` | L398-406 | `CreateChainTunnelTx()` |
-| **端口从数据库读取** | `repository_control.go` | L280-343 | `ListChainNodesForTunnel()` |
-
-**关键配置结构**:
-```go
-// mutations.go L1950-1957
-type tunnelRuntimeNode struct {
-    NodeID    int64
-    Protocol  string   // 连接协议
-    Strategy  string   // 选择策略
-    Inx       int      // 跳转序号
-    ChainType int      // 1=入口, 2=跳转, 3=出口
-    Port      int      // ★ 连接端口
-}
-```
-
----
-
-### 5. 调用链总结
-
-```
-用户创建隧道请求
-    │
-    ▼
-tunnelAdd (mutations.go L450)
-    │
-    ├── prepareTunnelCreateState() ──► 分配端口，构建 state
-    │
-    ├── replaceTunnelChainsTx() ──► 写入 chain_tunnel 表
-    │
-    └── applyTunnelRuntime()
-            │
-            ├── buildTunnelChainConfig()
-            │       │
-            │       ├── selectTunnelDialHost() ──► 选择 IP 地址
-            │       │
-            │       └── 使用 target.Port ──► 端口
-            │
-            └── sendNodeCommand("AddChains/AddService") ──► 发送到节点
-```

.entire/metadata/ses_352121722ffeeEwI5ixQzFWQDQ/prompt.txt

@@ -1,11 +0,0 @@
-探索转发创建时入口IP的生成流程：
-
-1. 查找 `buildTunnelInIP` 函数的完整实现
-2. 查找 `resolveForwardIngress` 函数的完整实现
-3. 理解 `forward_port` 表如何与节点IP关联
-4. 查找转发创建API（createForward）如何处理入口端口分配
-
-返回：
-- 关键代码片段和行号
-- 入口IP是如何从节点信息中提取的
-- 修改入口IP需要改动的关键位置

.entire/metadata/ses_352121722ffeeEwI5ixQzFWQDQ/summary.txt

@@ -1,185 +0,0 @@
-现在我已经找到了完整的入口IP生成流程。让我整理并返回关键信息：
-
----
-
-## 入口IP生成流程分析
-
-### 1. `buildTunnelInIP` 函数 (创建/更新隧道时)
-
-**位置**: `go-backend/internal/http/handler/mutations.go:2112-2152`
-
-```go
-func buildTunnelInIP(inNodes []tunnelRuntimeNode, nodes map[int64]*nodeRecord, ipPreference string) string {
-    set := make(map[string]struct{})
-    ordered := make([]string, 0)
-    preferV6 := strings.TrimSpace(ipPreference) == "v6"
-    for _, inNode := range inNodes {
-        node := nodes[inNode.NodeID]
-        if node == nil {
-            continue
-        }
-        v4 := strings.TrimSpace(node.ServerIPv4)   // 从节点获取 IPv4
-        v6 := strings.TrimSpace(node.ServerIPv6)   // 从节点获取 IPv6
-        var addrs []string
-        if preferV6 {
-            if v6 != "" { addrs = append(addrs, v6) }
-            if v4 != "" { addrs = append(addrs, v4) }
-        } else {
-            if v4 != "" { addrs = append(addrs, v4) }
-            if v6 != "" { addrs = append(addrs, v6) }
-        }
-        if len(addrs) == 0 {
-            if v := strings.TrimSpace(node.ServerIP); v != "" {  // fallback 到 ServerIP
-                addrs = append(addrs, v)
-            }
-        }
-        // ... 去重后拼接
-    }
-    return strings.Join(ordered, ",")
-}
-```
-
-**调用位置**:
-- 隧道创建: `mutations.go:496`
-- 隧道更新: `mutations.go:693`
-
----
-
-### 2. `resolveForwardIngress` 函数 (查询转发时)
-
-**位置**: `go-backend/internal/store/repo/repository.go:2727-2796`
-
-```go
-func resolveForwardIngress(db *gorm.DB, forwardID int64, tunnelID int64) (string, sql.NullInt64, error) {
-    // 1. 首先从 tunnel 表获取 in_ip (由 buildTunnelInIP 生成)
-    var tunnelInIP sql.NullString
-    db.Model(&model.Tunnel{}).Select("in_ip").Where("id = ?", tunnelID).Limit(1).Scan(&tunnelInIP)
-
-    // 2. 从 forward_port + node 表获取端口和节点IP
-    type fpRow struct {
-        Port     sql.NullInt64
-        ServerIP sql.NullString
-    }
-    var fpRows []fpRow
-    err := db.Model(&model.ForwardPort{}).
-        Select("forward_port.port, node.server_ip").
-        Joins("LEFT JOIN node ON node.id = forward_port.node_id").
-        Where("forward_port.forward_id = ?", forwardID).
-        Order("forward_port.id ASC").
-        Find(&fpRows).Error
-
-    // 3. 组装入口地址
-    // - 如果 tunnel.in_ip 存在: "ip1:port,ip2:port..."
-    // - 否则使用 forward_port 关联的 node.server_ip: "ip:port"
-    // ...
-}
-```
-
-**调用位置**:
-- `repository.go:495` - 用户转发列表
-- `repository.go:730` - 管理员转发列表
-
----
-
-### 3. `forward_port` 表与节点IP关联
-
-**模型定义**: `go-backend/internal/store/model/model.go:50-57`
-
-```go
-type ForwardPort struct {
-    ID        int64 `gorm:"primaryKey;autoIncrement"`
-    ForwardID int64 `gorm:"column:forward_id;not null"`
-    NodeID    int64 `gorm:"column:node_id;not null"`   // 关联到 node.id
-    Port      int   `gorm:"not null"`
-}
-```
-
-**关联查询** (在 `resolveForwardIngress` 中):
-```sql
-SELECT forward_port.port, node.server_ip
-FROM forward_port
-LEFT JOIN node ON node.id = forward_port.node_id
-WHERE forward_port.forward_id = ?
-ORDER BY forward_port.id ASC
-```
-
----
-
-### 4. 转发创建API入口分配流程
-
-**入口函数**: `go-backend/internal/http/handler/mutations.go:1108-1194`
-
-```go
-func (h *Handler) forwardCreate(w http.ResponseWriter, r *http.Request) {
-    // 1. 获取隧道入口节点IDs
-    entryNodes, _ := h.tunnelEntryNodeIDs(tunnelID)  // line 1162
-    
-    // 2. 获取或选择入口端口
-    port := asInt(req["inPort"], 0)
-    if port <= 0 {
-        port = h.pickTunnelPort(tunnelID)  // 自动分配端口 (line 1157)
-    }
-    
-    // 3. 创建转发记录 + forward_port 记录
-    forwardID, err := h.repo.CreateForwardTx(..., entryNodes, port, ...)  // line 1179
-}
-```
-
-**`CreateForwardTx`**: `go-backend/internal/store/repo/repository_mutations.go:1171-1209`
-```go
-func (r *Repository) CreateForwardTx(..., entryNodeIDs []int64, port int, ...) (int64, error) {
-    // 创建 forward 记录
-    // 为每个入口节点创建 forward_port 记录
-    for _, nodeID := range entryNodeIDs {
-        fp := model.ForwardPort{
-            ForwardID: forwardID,
-            NodeID:    nodeID,    // 入口节点ID
-            Port:      port,      // 入口端口
-        }
-        tx.Create(&fp)
-    }
-}
-```
-
-**入口节点获取**: `repository_mutations.go:535-548`
-```go
-func (r *Repository) TunnelEntryNodeIDs(tunnelID int64) ([]int64, error) {
-    // 从 chain_tunnel 表查询 chain_type = 1 (入口) 的节点
-    r.db.Model(&model.ChainTunnel{}).
-        Where("tunnel_id = ? AND chain_type = ?", tunnelID, "1").
-        Order("inx ASC, id ASC").
-        Pluck("node_id", &ids)
-}
-```
-
----
-
-## 关键修改位置
-
-| 需求 | 修改文件 | 行号 | 说明 |
-|------|----------|------|------|
-| **修改隧道入口IP生成逻辑** | `mutations.go` | 2112-2152 | `buildTunnelInIP` 函数，控制IPv4/IPv6优先级和组合 |
-| **修改转发入口IP解析** | `repository.go` | 2727-2796 | `resolveForwardIngress`，控制入口地址格式 |
-| **修改端口自动分配** | `mutations.go` | 2901-2964 | `pickTunnelPort`，控制端口范围选择 |
-| **修改入口节点关联** | `repository_mutations.go` | 1196-1205 | `CreateForwardTx` 中的 forward_port 创建 |
-| **节点IP来源** | `model.go` | 516-531 | `NodeRecord` 结构体 |
-| **节点IP存储** | `model.go` | 59-65 | `Node` 模型: `ServerIP`, `ServerIPV4`, `ServerIPV6` |
-
----
-
-## 入口IP数据流
-
-```
-1. 节点注册 → Node表存储 server_ip, server_ip_v4, server_ip_v6
-
-2. 创建隧道:
-   chain_tunnel (入口节点) → buildTunnelInIP() → tunnel.in_ip 字段
-
-3. 创建转发:
-   隧道入口节点IDs → forward_port(forward_id, node_id, port)
-
-4. 查询转发入口:
-   forward_port JOIN node → resolveForwardIngress()
-   ├─ 优先使用 tunnel.in_ip (多IP组合)
-   └─ 否则用 forward_port 关联的 node.server_ip
-```

.entire/metadata/ses_3522df9f9ffed5y6qXQeuiZ8vT/prompt.txt

@@ -1,16 +0,0 @@
-Explore the codebase to understand how forwarding/tunnel configuration works. I need to find:
-
-1. Frontend: The forwarding edit/create dialog component (likely in vite-frontend/src/)
-2. Backend: The forwarding data model and API handlers (likely in go-backend/)
-3. How the current "入口端口" (entry port) is handled
-
-Look for:
-- Files related to "forward" or "转发" or "tunnel" or "隧道"
-- Data models for forwarding rules
-- API handlers for creating/editing forwards
-
-Return:
-- Key file paths and their purposes
-- Current data model structure for forwards
-- How the entry listener is currently configured
-- Any existing IP-related fields in the model

.entire/metadata/ses_3522df9f9ffed5y6qXQeuiZ8vT/summary.txt

@@ -1,316 +0,0 @@
-              // List in frontend display isPort.)?
-
-
-      if (in_ip !== in.re.selected) {
-tunnel ip !== node in_tunnel.port_range value
-              select(v4 or IPv6, and
-              .chainType = chainType === 1 ( then chain_node !== node to check if `in_ip` is still used:
-              "chain_node_id" for `chainTunnels.node_id = nodeId, && `chainType != "hop" fields
-
-              //
-              }
-            }
-            }
-
-              <Select
-                <div className="flex flex-col gap-4 mt-6">
-              <Select
-                isFilterModalOpen={false}
-                setFilterUserId, filterTunnelId(tunnelId)}
-              }}
-              <form.in_port}
-                :form.in_port !== null,
-            }}
-          } else {
-setFilterTunnelId}
-              }
-            }}
-            // handleEntryNodeIDs
- hop - entry port assignment
-              const { entryNodeID, entryPort, entry_ip, resolvedFor forwardIn_ip based on
- forward data view:
-          In entity links the node,entry, remote_addr and`]
- tdCompose groups
-
- remote nodes by hostname.
- `target_addr` is multiple ones, the `targetAddr`/ `name` || `strategy: data in the form, uses the latest text.
-
- `line text: `grid gap-3 group` leading to border. from UI styles 
-  `.sort order`actions`: data
- ? `no-frontend for/not directly modify forward model
- so it doesn't have `inPort` in model.For forward creation.```
-
-        const forwardPort = entryNodeIDs with port = 0
- are - but tunnels and tunnels have
- after:. Based on.
-
- to reach the entry from. specified port-based" entry_ip, `addr_text` field or tunnel IP-based tunnel values with data not used this rules
- step pattern is`node-based:`peer` or a`IP_preference` + `ip_preference` header.
-
- "IP_preference from}
-        `grep<include="*.tsx"" path="/Users/sagit/.local/share/opencode/worktree/13650be91caa3a9e08a2e63127fef62757658384/mighty-nebula/vite-frontend/src/pages/forward.tsx" />
- "peer_share" and "federation" share" APIs.
-        data models
-        />
-    < Frontend> `in_ip` comes from the tunnel, and not the node model.In Go-gost.
-
-. I will specifically look at `port` and `forward_port` data stored in `forward_port` table (`                      // When editing, forward, the UI keeps the current port value in the `inPort` state is checked for duplicates (`
- forwards list ( addresses with multiple addresses.
-
-          </div
-        }
-      </div>
-        }
-      }
-    }
-  }
-        className="flex flex-col gap-4">
-          {/* form fields - in edit mode */}
-          </4-form.inPort in field and handleClick save
- validation and numbers? `handleEdit` adds the `inPort` to the and `inPort` state.
-          // handleDragEnd ref={handleDragEnd} to scroll into view}
-          if (prev.forwardPorts.length === 0) {
-            // Create new forward
- entry with not auto expanded
-          const inPort records = || const{index` === 0` ? record and `forward_ports` table
-            const inPort = records = or can be rendered when the to pickTunnelPort:           the empty { inPort = null ?} => to persistent if port === 0 ( automatic assignment).
-          } else {
-            toast.error("请选择关联隧道")
-          }
-          const minPort =
-              const ports = oldPorts.map((p) => p)) // values from request
-          // value === 0 means "端口不能为空，  else if (!port) {
-            const inPort = tunnelPorts.map((t) => {
-              const inIP = tunnel = in_ip
- || t.IP === the default) 'auto' (available, tunnel.ip_preference` || `:` if` in_ip` and `in_port` values ( listenAddr] which`tcp`/udp` addresses are the respectively
-            `forward` now supports select/un/selected tunnel. when not found ( a single ` address can be shown, and simplified overview.= `tunnel` but has `in_ip` display name="人口入口IP` and "端口转发" when tunnel is port-forward, the model oftrafficRatio` floats with `type` and `protocol` fields.
-
-          // `protocol`: 'tls' | 'wss' | 'mtls' | 'mtcp'
- for `type` === 1: 繀 端口转发, 2: 隧道转发, and `type` determines the listeners on which forward ( protocol, and exit node ( configuration. Let `traffic_ratio` be on in/out, and the name` tunnelName, in the `UserTunnel` table
-    var chainType = chainType === "entry" ? # chainType === 2, value for represents entry node id for chain_type === "hop", fields indicate which hop number (1-based, `strategy` on the current value)
-
-                    ? newErrors.inPort = "端口必须在1-65535之间";
-                  form.inPort = optional
- required validation in  if filled, values to 0 or null, then the port is is auto-assigned
-                      } ValidateForm()
-                      if (validateForm()) {
-        setErrors(newErrors);
-      }
-    }
-  };
-  const handleTunnelChange = (tunnelId: string) => {
-    setForm((prev) => ({ ...prev, tunnelId}));
-    : if (prev.inPort !== null && prev.inPort !== old, in port assignment will not assign the new port  auto
-                });
-                }
-              );
-            } else {
-              inPort = null
-            : options.speedId = speedLimit }
-              onChange={(selectedKey) => {
-                setFilter((prev) => ({ ...prev, speedId, speedName }));
-            }
-          });
-        });
-              setBatchChangeTunnelModalOpen(false);
-              setBatchChangeTunnelModalOpen(false);
-            }
-          </div>
-          </div>
-        );
-      <input
-inport}
- */
-.tsx
-      <Input
-              description="指定入口端口，留空则从节点可用端口中自动分配"
-              placeholder="留空则自动分配可用端口"
-              type="number"
-              variant="bordered"
-              onChange={(e) => {
-                const value = e.target.value ? ""
-                  : parseInt(value) || null)
-                  setForm((prev) => ({ ...prev, inPort: null}));
-              </div>
-          </div>
-          <ModalContent>
-            <ModalHeader className="flex flex-col gap-1">
-              <h2 className="text-xl font-bold">
-                {isEdit ? "编辑转发" : "新增转发"}
-                </h2>
-                <p className="text-small text-default-500 mt-4">
-                  {isEdit ? "修改现有转发配置的信息" : "创建新的转发配置"}
-                </p>
-              <ModalBody>
-                <div className="space-y-4 pb-4">
-                  <Input
-                    errorMessage={errors.name}
-                    isInvalid={!!errors.name}
-                    label="转发名称"
-                    placeholder="请输入转发名称"
-                    value={form.name}
-                    variant="bordered"
-                    onChange={(e) =>
-                      setForm((prev) => ({ ...prev, name: e.target.value }))
-                    }
-                  />
-
-                  {/* Limit速规则选择 */}
-                  <Select
-                    description="限速规则"
-                    placeholder="不限速"
-                    selectedKeys={
-                      selectedSpeedId !== null ? ?[selectedSpeedId.toString()] : []
-                    }
-                    variant="bordered"
-                    onSelectionChange={(keys) => {
-                      const selectedKey = Array.from(keys)[0] as string | undefined;
-                      setForm((prev) => ({
-                        ...prev,
-                        speedId: selectedKey ? Number(selectedKey) : null,
-                      });
-                    }}
-                  />
-
-                  {/*隧道选择 */}
-                  <Select
-                    description={
-                      isEdit
-                        ? "更改隧道将释放原端口并在新隧道分配端口"
-                        : "更改隧道后重新分配端口并同步到节点"
-                  }
-                    }
-                    errorMessage={errors.tunnelId}
-                    isInvalid={!!errors.tunnelId}
-                    label="选择隧道"
-                    placeholder="请选择关联的隧道"
-                    selectedKeys={
-                      form.tunnelId ? [form.tunnelId.toString()] : []
-                    }
-                    variant="bordered"
-                    onSelectionChange={(keys) => {
-                      const selectedKey = Array.from(keys)[0] as string;
-                      if (selectedKey) {
-                        handleTunnelChange(selectedKey);
-                      }
-                    }
-                  />
-
-                  {/*入口端口 */}
-                  <Input
-                    description="指定入口端口，留空则从节点可用端口中自动分配"
-                    errorMessage={errors.inPort}
-                    isInvalid={!!errors.inPort}
-                    label="入口端口"
-                    placeholder="留空则自动分配可用端口"
-                    type="number"
-                    value={form.inPort !== null ? form.inPort.toString() : ""}
-                    variant="bordered"
-                    onChange={(e) => {
-                      const value = e.target.value;
-                      setForm((prev) => ({ ...prev, inPort: value ? parseInt(value) : null }));
-                    }
-                  />
-                </div>
-          </ModalBody>
-        </ModalContent>
-      </Modal>
-    </Modal>
-  );
-};
-
-  // ===================== Summary of findings ===================
-
-## Key File Paths and their purposes:
-
-### Frontend: Forward Edit/create dialog component
-- **Main file:** `/Users/sagit/.local/share/opencode/worktree/13650be91caa3a9e08a2e63127fef62757658384/mighty-nebula/vite-frontend/src/pages/forward.tsx`
-  - Displays the forwarding list and handles all create/edit/delete/forwards
-- Has `inIp` and `inPort` fields
-- Shows entry port and dialog/form with validation
-- Uses React-hook-form with state management
-- Calls `createForward`, `updateForward`, `deleteForward`, `pauseForwardService`, `resumeForwardService`, APIs
-
-- Imports API functions from `@/api`
-
-### Backend: Forwarding data model and API handlers
-- **Main model file:** `/Users/sagit/.local/share/opencode/worktree/13650be91caa3a9e08a2e63127fef62757658384/mighty-nebula/go-backend/internal/store/model/model.go`
-  - GORM model definition for `Forward` struct does basic forwarding configuration
-  - Related models: `ForwardPort`, `Tunnel`, `UserForwardDetail` (view struct)
-
-  - **API handlers:** `/Users/sagit/.local/share/opencode/worktree/13650be91caa3a9e08a2e63127fef62757658384/mighty-nebula/go-backend/internal/http/handler/mutations.go`
-  - Create/update/delete operations
-  - Entry port handling via `inPort` field
-
-- **Repository layer:** `/Users/sagit/.local/share/opencode/worktree/13650be91caa3a9e08a2e63127fef62757658384/mighty-nebula/go-backend/internal/store/repo/repository_mutations.go`
-  - CRUD operations for  - `resolveForwardIngress` function in `/Users/sagit/.local/share/opencode/worktree/13650be91caa3a9e08a2e63127fef62757658384/mighty-nebula/go-backend/internal/store/repo/repository.go`
-  - Computes `inIp` and `inPort` from joins
-
-### Current data model structure for forwards
-
-From `go-backend/internal/store/model/model.go`:
-
-```go
-// 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:"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"`
-}
-```
-
-```go
-// ForwardPort maps to the "forward_port" table - stores port assignments per entry node
-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"`
-}
-```
-
-```go
-// Tunnel maps to the "tunnel" table - has entry IP configuration
-type Tunnel struct {
-    ID           int64          `gorm:"primaryKey;autoIncrement"`
-    Name         string         `gorm:"type:varchar(100);not null"`
-    TrafficRatio float64        `gorm:"column:traffic_ratio;not null;default:1.0"`
-    Type         int            `gorm:"not null"`
-    Protocol     string         `gorm:"type:varchar(10);not null;default:'tls'"`
-    Flow         int64          `gorm:"not null"`
-    CreatedTime  int64          `gorm:"column:created_time;not null"`
-    UpdatedTime  int64          `gorm:"column:updated_time;not null"`
-    Status       int            `gorm:"not null"`
-    InIP         sql.NullString `gorm:"column:in_ip;type:text"`       // Optional entry IP hint
-    Inx          int            `gorm:"not null;default:0"`
-    IPPreference string         `gorm:"column:ip_preference;type:varchar(10);not null;default:''"`
-}
-```
-
-### How entry listener is currently configured:
-
-1. **Port Storage**: `ForwardPort` table stores the mapping from `forward_id` -> `node_id` -> `port`
-   - Port is assigned by the handler or passed via `inPort` parameter ( or auto-picked)
-   - Entry nodes are determined by `tunnelEntryNodeIDs()` in handler
-
-3. **Entry IP Resolution**: The `resolveForwardIngress()` function resolves `inIp` and `inPort` by:
-   - Joining `forward_port` with `node` table
-   - `inIp` comes from `tunnel.in_ip` if set (takes precedence over node.server_ip)
-   - For multi-entry-node forwards, comma-separated IPs and ports are returned
-
-4. **Current IP-related fields**:
-   - `Forward` model: No `inIp` field (port is stored in `forward_port` table)
-   - `Tunnel` model: Has `InIP` field (nullable, - allows specifying of a preferred entry IP hint
-   - `UserForwardDetail` view struct ( joins tunnel table and includes `InIP` and `InPort`
-5. **No explicit entry IP selection UI in current dialog** - The port field is a text input, and form validates range but but UI doesn't allow setting specific IP addresses

.entire/metadata/ses_3522e875effekgOPksTOkVAXDR/prompt.txt

@@ -1,10 +0,0 @@
-总结一下这个issue，结合当前代码，尽量设计简约实现issue的目标
-https://github.com/Sagit-chu/flvx/issues/211
-
----
-
-应该在节点上的高级里面允许添加多个IP
-
----
-
-继续，允许在节点管理里填写多个地址，然后在组成隧道或者转发的时候选择节点的时候允许选择具体的ip，请开始设计，允许使用并行subagent

.entire/metadata/ses_3522e875effekgOPksTOkVAXDR/summary.txt

@@ -1,76 +0,0 @@
-明白了！更新设计：
-
----
-
-## 最终设计方案
-
-### 核心需求
-
-| 场景 | 配置位置 | 选择内容 |
-|------|----------|----------|
-| 转发 | 转发创建/编辑 | 入口监听IP（从入口节点IP列表选择） |
-| 隧道 | 隧道配置 | 出口节点连接IP（从出口节点IP列表选择） |
-
----
-
-### 数据模型变更（3处）
-
-```
-Node.ExtraIPs      sql.NullString  `gorm:"column:extra_ips;type:text"`     // 逗号分隔
-ForwardPort.InIP   sql.NullString  `gorm:"column:in_ip;type:text"`         // 指定监听IP
-ChainTunnel.ConnectIP sql.NullString `gorm:"column:connect_ip;type:text"`  // 出口连接IP
-```
-
----
-
-### 改动清单
-
-#### 后端 (约200行)
-
-| 文件 | 改动 |
-|------|------|
-| `model/model.go` | Node/ForwardPort/ChainTunnel 增加3个字段 |
-| `repository_mutations.go` | CreateNode/UpdateNode 处理 extraIPs 参数 |
-| `repository_control.go` | GetNodeRecord/ListNodeAllIPs 辅助函数 |
-| `repository.go` | resolveForwardIngress 使用 forward_port.in_ip |
-| `handler/mutations.go` | selectTunnelDialHost 优先使用 connectIP |
-
-#### 前端 (约150行)
-
-| 页面 | 改动 |
-|------|------|
-| 节点编辑 | 高级配置增加"额外IP" Input（逗号分隔） |
-| 转发编辑 | 入口端口旁增加"监听IP" Select（从入口节点IP选择） |
-| 隧道配置 | 出口节点行增加"连接IP" Select（从出口节点IP选择） |
-
----
-
-### UI 示意
-
-**节点编辑 - 高级配置**
-```
-额外IP地址
-┌──────────────────────────────────────────┐
-│ 192.168.1.100, 10.0.0.5                  │
-└──────────────────────────────────────────┘
-用于多IP服务器，逗号分隔
-```
-
-**转发创建**
-```
-入口端口: [ 8080 ]     监听IP: [ 192.168.1.100 ▼ ]
-                                ├─ 203.0.113.10 (默认)
-                                ├─ 192.168.1.100
-                                └─ 10.0.0.5
-```
-
-**隧道配置 - 出口节点**
-```
-出口节点: [ node-1 ▼ ]  端口: [ 8443 ]  连接IP: [ 10.0.0.5 ▼ ]
-                                                ├─ 203.0.113.10 (默认)
-                                                └─ 10.0.0.5
-```
-
----
-
-这个方案简约清晰，是否可以开始实现？

.entire/settings.json

@@ -1,4 +0,0 @@
-{
-  "enabled": true,
-  "telemetry": false
-}

.github/ISSUES/forward-show-tunnel-ratio.md

@@ -0,0 +1,62 @@
+# 功能请求：在规则页面显示隧道倍率
+
+## 问题描述
+
+当前规则（Forward）页面在列表中显示隧道名称，但**不显示隧道的流量倍率（trafficRatio）**。管理员在管理规则时无法快速查看该规则所使用的隧道倍率信息，需要跳转到隧道页面才能查看。
+
+## 期望行为
+
+在规则列表页面中，在隧道名称旁边或单独列显示该隧道的流量倍率（例如：`1x`, `0.5x`, `2x`）。
+
+## 建议实现位置
+
+### 前端修改
+
+1. **`vite-frontend/src/pages/forward.tsx`**
+   - 在 `Forward` interface 中添加 `tunnelTrafficRatio?: number` 字段
+   - 在表格列中添加倍率显示（可以在隧道名称 Chip 旁边或单独一列）
+   - 从 `userTunnel` 或 `getTunnelList` API 获取隧道倍率信息
+
+2. **显示格式建议**
+   ```tsx
+   <Chip className="...">
+     {forward.tunnelName} ({forward.tunnelTrafficRatio}x)
+   </Chip>
+   ```
+   或者单独一列：
+   ```tsx
+   <TableCell>
+     {forward.tunnelTrafficRatio}x
+   </TableCell>
+   ```
+
+### 后端修改
+
+1. **`go-backend/internal/http/handler/handler.go`**
+   - 在 `forwardList` 接口返回中添加隧道的 `trafficRatio` 字段
+   - 需要在查询 Forward 时 JOIN Tunnel 表获取倍率信息
+
+2. **或者在前端加载规则后，批量获取隧道信息**
+   - 调用 `getTunnelList` 获取所有隧道信息
+   - 根据 `tunnelId` 匹配倍率
+
+## 相关文件
+
+- 前端：`vite-frontend/src/pages/forward.tsx`
+- 前端类型：`vite-frontend/src/api/types.ts`
+- 后端：`go-backend/internal/http/handler/handler.go`
+- 隧道类型定义：`vite-frontend/src/api/types.ts` (TunnelApiItem)
+
+## 优先级
+
+中等 - 不影响核心功能，但能提升管理效率
+
+## 截图参考
+
+隧道页面已显示倍率：
+- 位置：隧道卡片统计信息区域
+- 显示格式：`流量倍率 {trafficRatio}x`
+
+---
+
+**Labels**: `enhancement`, `frontend`, `backend`, `ui/ux`

.gitignore

@@ -62,8 +62,12 @@ go-gost/ss/
 .classpath
 .project
 .settings/
+
+# OpenCode session metadata
+.entire/
 bin/
 tmp/
+.worktrees/
 *.swp
 *.bak
 

.sisyphus/plans/001-setup-dev-environment.md

@@ -1,71 +0,0 @@
-# Plan: 搭建开发环境
-
-## 目标
-为 Flux Panel 项目安装所有缺失的开发依赖，使 3 个子项目都能本地开发和构建。
-
-## 当前状态
-
-### ✅ 已安装
-| 工具 | 版本 | 用途 |
-|------|------|------|
-| Node.js | v20.19.2 | vite-frontend |
-| npm | 9.2.0 | vite-frontend |
-| Go | 1.24.4 | go-gost |
-| Docker | 29.1.4 | 容器化部署 |
-
-### ❌ 缺失
-| 工具 | 需求版本 | 用途 |
-|------|----------|------|
-| Java | 21 | springboot-backend |
-| Maven | 3.x | 构建后端 |
-| Docker Compose | v2 | 容器编排 |
-
----
-
-## 执行任务
-
-### Task 1: 安装 Java 21
-```bash
-apt-get update && apt-get install -y openjdk-21-jdk
-```
-**验证**: `java -version` 应显示 openjdk 21
-
-### Task 2: 安装 Maven
-```bash
-apt-get install -y maven
-```
-**验证**: `mvn -v` 应显示 Maven 3.x
-
-### Task 3: 安装 Docker Compose Plugin
-```bash
-apt-get install -y docker-compose-plugin
-```
-**验证**: `docker compose version` 应显示版本号
-
-### Task 4: 安装前端依赖
-```bash
-cd /root/flux-panel/vite-frontend && npm install
-```
-**验证**: `node_modules/` 目录存在
-
-### Task 5: 验证后端可构建
-```bash
-cd /root/flux-panel/springboot-backend && mvn clean compile -q
-```
-**验证**: 编译成功无错误
-
-### Task 6: 验证 Go 模块
-```bash
-cd /root/flux-panel/go-gost && go mod download
-```
-**验证**: 依赖下载成功
-
----
-
-## 完成标准
-- [ ] `java -version` → openjdk 21
-- [ ] `mvn -v` → Maven 3.x
-- [ ] `docker compose version` → v2.x
-- [ ] 前端: `npm run dev` 可启动
-- [ ] 后端: `mvn compile` 成功
-- [ ] Go: `go build .` 成功

211-custom-ip-selection.md

@@ -1,33 +0,0 @@
-# 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: ✅

AGENTS.md

@@ -1,9 +1,9 @@
 # PROJECT KNOWLEDGE BASE
 
-**Generated:** Thu Feb 26 2026
-**Commit:** 21008cc
+**Generated:** Tue Mar 24 2026
+**Commit:** 8ebde9d
 **Branch:** main
-**Tag:** 2.1.5-rc15
+**Tag:** 2.1.9-rc10
 
 ## 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/PostgreSQL) + Vite/React UI + Go forwarding agent, with optional mobile WebView wrappers.
@@ -53,6 +53,7 @@ FLVX (formerly Flux Panel) is a traffic forwarding management system built on a
 | `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.

IMPLEMENTATION_PLAN.md

@@ -1,148 +0,0 @@
-# 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

README.md

@@ -33,13 +33,13 @@ curl -L https://raw.githubusercontent.com/Sagit-chu/flux-panel/main/install.sh -
 #### 安装特定版本
 从 [Releases](https://github.com/Sagit-chu/flux-panel/releases) 页面复制对应版本的安装命令，脚本会自动安装该版本而非最新版。
 
-面板端（以 2.1.0 为例）：
+面板端（以 2.1.9-beta6 为例）：
 ```bash
-curl -L https://github.com/Sagit-chu/flux-panel/releases/download/2.1.0/panel_install.sh -o panel_install.sh && chmod +x panel_install.sh && ./panel_install.sh
+curl -L https://github.com/Sagit-chu/flux-panel/releases/download/2.1.9-beta6/panel_install.sh -o panel_install.sh && chmod +x panel_install.sh && ./panel_install.sh
 ```
-节点端（以 2.1.0 为例）：
+节点端（以 2.1.9-beta6 为例）：
 ```bash
-curl -L https://github.com/Sagit-chu/flux-panel/releases/download/2.1.0/install.sh -o install.sh && chmod +x install.sh && ./install.sh
+curl -L https://github.com/Sagit-chu/flux-panel/releases/download/2.1.9-beta6/install.sh -o install.sh && chmod +x install.sh && ./install.sh
 ```
 
 #### PostgreSQL 部署（Docker Compose）

docs/superpowers/plans/001-floating-save-button.md

@@ -0,0 +1,132 @@
+# Floating Save Button Implementation Plan
+
+> **For agentic workers:** REQUIRED SUB-SKILL: Use superpowers:subagent-driven-development (recommended) or superpowers:executing-plans to implement this plan task-by-task. Steps use checkbox (`- [ ]`) syntax for tracking.
+
+**Goal:** Add a floating save button (FAB) to the config page that appears when configuration changes are detected.
+
+**Architecture:** Inline FAB implementation using framer-motion AnimatePresence for enter/exit animations. Fixed-position circular button with slide-up animation, reusing existing hasChanges state and handleSave function.
+
+**Tech Stack:** React, framer-motion (v11.18.2), shadcn-bridge/heroui Button, Tailwind CSS
+
+---
+
+## File Structure
+
+| File | Action | Purpose |
+|------|--------|---------|
+| `vite-frontend/src/pages/config.tsx` | Modify | Add FAB imports and component at page bottom |
+
+---
+
+### Task 1: Add framer-motion Imports
+
+**Files:**
+- Modify: `vite-frontend/src/pages/config.tsx:1-5`
+
+- [ ] **Step 1: Add AnimatePresence and motion imports**
+
+Add import statement after existing framer-motion imports (or at top if none exist).
+
+Current imports at line 1-2:
+```typescript
+import { useState, useEffect, useRef } from "react";
+import { useNavigate } from "react-router-dom";
+```
+
+Add new import after line 2:
+```typescript
+import { AnimatePresence, motion } from "framer-motion";
+```
+
+- [ ] **Step 2: Commit import addition**
+
+```bash
+git add vite-frontend/src/pages/config.tsx
+git commit -m "feat(config): add framer-motion imports for FAB animation"
+```
+
+---
+
+### Task 2: Add FAB Component
+
+**Files:**
+- Modify: `vite-frontend/src/pages/config.tsx:1220-1224` (end of component)
+
+- [ ] **Step 1: Add FAB at end of component (before closing div)**
+
+Locate the end of `ConfigPage` component (line ~1223, the closing `</div>` after all modals).
+
+Insert FAB component before the closing `</div>`:
+
+```tsx
+      {/* Floating Save Button (FAB) */}
+      <AnimatePresence>
+        {hasChanges && (
+          <motion.div
+            initial={{ y: 100, opacity: 0 }}
+            animate={{ y: 0, opacity: 1 }}
+            exit={{ y: 100, opacity: 0 }}
+            transition={{ type: "spring", damping: 20, stiffness: 300 }}
+            className="fixed bottom-6 right-6 z-50"
+          >
+            <Button
+              isIconOnly
+              color="primary"
+              size="lg"
+              className="w-12 h-12 rounded-full shadow-lg"
+              isLoading={saving}
+              onPress={handleSave}
+            >
+              {!saving && <SaveIcon className="w-5 h-5" />}
+            </Button>
+          </motion.div>
+        )}
+      </AnimatePresence>
+    </div>
+  );
+}
+```
+
+- [ ] **Step 2: Run dev server to verify**
+
+```bash
+cd vite-frontend && npm run dev
+```
+
+Manual verification checklist:
+- Open config page at http://localhost:3000/config
+- Modify any config field
+- Verify FAB appears with slide-up animation
+- Click FAB to save
+- Verify FAB disappears with slide-down animation after save
+- Scroll page and verify FAB stays fixed in viewport corner
+- Test on mobile viewport (resize browser or use dev tools)
+
+- [ ] **Step 3: Commit FAB implementation**
+
+```bash
+git add vite-frontend/src/pages/config.tsx
+git commit -m "feat(config): add floating save button (FAB) for issue #266"
+```
+
+---
+
+## Verification Summary
+
+| Requirement | Verification Method |
+|-------------|---------------------|
+| FAB hidden by default | Visual: no FAB on page load with no changes |
+| FAB appears on change | Visual: modify field → FAB slides up |
+| Fixed position | Visual: scroll page → FAB stays in corner |
+| Slide-up animation | Visual: observe animation timing/bounce |
+| Slide-down on save | Visual: click save → FAB slides down |
+| Loading state | Visual: click save → spinner shown during save |
+| Mobile compatibility | Visual: resize to mobile viewport → same behavior |
+
+---
+
+## Self-Review Checklist
+
+- [x] Spec coverage: All requirements from design doc covered (imports + FAB component, animation params, button style, interaction behavior)
+- [x] No placeholders: All code shown, no TBD/TODO
+- [x] Type consistency: SaveIcon (line 45-59), handleSave (line 372-434), hasChanges (line 214), saving (line 213) all exist in config.tsx

docs/superpowers/plans/2026-04-01-github-proxy-config.md

@@ -0,0 +1,520 @@
+# GitHub 加速地址自定义配置实现计划
+
+> **For agentic workers:** REQUIRED SUB-SKILL: Use superpowers:subagent-driven-development (recommended) or superpowers:executing-plans to implement this plan task-by-task. Steps use checkbox (`- [ ]`) syntax for tracking.
+
+**Goal:** 允许用户在面板设置中自定义 GitHub 加速地址，支持开启/关闭加速，配置影响全部下载场景。
+
+**Architecture:** 使用现有 `vite_config` 表存储配置，后端 Handler 读取配置替换硬编码，前端复用现有配置项渲染逻辑，安装脚本支持环境变量和交互式询问。
+
+**Tech Stack:** Go 1.24, React/TypeScript, Shell/Bash
+
+---
+
+## 文件结构
+
+| 文件 | 操作 | 说明 |
+|------|------|------|
+| `go-backend/internal/http/handler/upgrade.go` | 修改 | 移除硬编码，添加配置读取函数 |
+| `go-backend/internal/http/handler/mutations.go` | 修改 | `nodeInstall` 函数使用动态配置 |
+| `vite-frontend/src/pages/config.tsx` | 修改 | 添加两个新配置项 |
+| `install.sh` | 修改 | 支持交互式询问和环境变量 |
+| `panel_install.sh` | 修改 | 支持交互式询问和环境变量 |
+| `test-install-scripts-proxy.sh` | 新增 | 覆盖代理交互与下载 URL 回归 |
+
+---
+
+## Task 1: 后端 - upgrade.go 修改
+
+**Files:**
+- Modify: `go-backend/internal/http/handler/upgrade.go`
+
+- [x] **Step 1: 移除硬编码常量，添加配置读取函数**
+
+在 `upgrade.go` 中，移除 `githubProxy` 常量，添加 `getGithubProxyConfig` 函数：
+
+找到第 16-26 行：
+```go
+const (
+	githubRepo     = "Sagit-chu/flvx"
+	githubProxy    = "https://gcode.hostcentral.cc"
+	githubAPIBase  = "https://api.github.com"
+	githubHTMLBase = "https://github.com"
+	upgradeTimeout = 5 * time.Minute
+	batchWorkers   = 5
+
+	releaseChannelStable = "stable"
+	releaseChannelDev    = "dev"
+)
+```
+
+替换为：
+```go
+const (
+	githubRepo     = "Sagit-chu/flvx"
+	githubAPIBase  = "https://api.github.com"
+	githubHTMLBase = "https://github.com"
+	upgradeTimeout = 5 * time.Minute
+	batchWorkers   = 5
+
+	releaseChannelStable = "stable"
+	releaseChannelDev    = "dev"
+
+	defaultGithubProxyEnabled = true
+	defaultGithubProxyURL     = "https://gcode.hostcentral.cc"
+)
+```
+
+然后在 `releaseChannelLabel` 函数后（约第 71 行之后）添加新函数：
+```go
+// getGithubProxyConfig 获取 GitHub 加速配置
+// 返回: (是否开启加速, 加速地址)
+func (h *Handler) getGithubProxyConfig() (enabled bool, proxyURL string) {
+	enabled = defaultGithubProxyEnabled
+	proxyURL = defaultGithubProxyURL
+
+	if h == nil || h.repo == nil {
+		return
+	}
+
+	// 读取开启状态
+	if enabledCfg, err := h.repo.GetConfigByName("github_proxy_enabled"); err == nil && enabledCfg != nil {
+		enabled = enabledCfg.Value != "false"
+	}
+
+	// 读取加速地址
+	if urlCfg, err := h.repo.GetConfigByName("github_proxy_url"); err == nil && urlCfg != nil && urlCfg.Value != "" {
+		proxyURL = strings.TrimSpace(urlCfg.Value)
+		// 确保 URL 格式正确
+		if !strings.HasPrefix(proxyURL, "http://") && !strings.HasPrefix(proxyURL, "https://") {
+			proxyURL = "https://" + proxyURL
+		}
+		proxyURL = strings.TrimSuffix(proxyURL, "/")
+	}
+
+	return
+}
+
+// buildGithubDownloadURL 构建 GitHub 下载地址
+func (h *Handler) buildGithubDownloadURL(version, filename string) string {
+	enabled, proxyURL := h.getGithubProxyConfig()
+	base := fmt.Sprintf("%s/%s/releases/download/%s/%s", githubHTMLBase, githubRepo, version, filename)
+
+	if enabled {
+		return fmt.Sprintf("%s/%s", proxyURL, base)
+	}
+	return base
+}
+```
+
+- [x] **Step 2: 修改 nodeUpgrade 函数使用动态配置**
+
+找到第 152-159 行：
+```go
+	downloadURL := fmt.Sprintf(
+		githubProxy+"/%s/%s/releases/download/%s/gost-{ARCH}",
+		githubHTMLBase, githubRepo, version,
+	)
+	checksumURL := fmt.Sprintf(
+		githubProxy+"/%s/%s/releases/download/%s/gost-{ARCH}.sha256",
+		githubHTMLBase, githubRepo, version,
+	)
+```
+
+替换为：
+```go
+	downloadURL := h.buildGithubDownloadURL(version, "gost-{ARCH}")
+	checksumURL := h.buildGithubDownloadURL(version, "gost-{ARCH}.sha256")
+```
+
+- [x] **Step 3: 修改 nodeBatchUpgrade 函数使用动态配置**
+
+找到第 216-223 行：
+```go
+	downloadURL := fmt.Sprintf(
+		githubProxy+"/%s/%s/releases/download/%s/gost-{ARCH}",
+		githubHTMLBase, githubRepo, version,
+	)
+	checksumURL := fmt.Sprintf(
+		githubProxy+"/%s/%s/releases/download/%s/gost-{ARCH}.sha256",
+		githubHTMLBase, githubRepo, version,
+	)
+```
+
+替换为：
+```go
+	downloadURL := h.buildGithubDownloadURL(version, "gost-{ARCH}")
+	checksumURL := h.buildGithubDownloadURL(version, "gost-{ARCH}.sha256")
+```
+
+- [x] **Step 4: 验证编译**
+
+Run: `cd go-backend && go build ./...`
+Expected: 编译成功，无错误
+
+- [x] **Step 5: 提交**
+
+```bash
+git add go-backend/internal/http/handler/upgrade.go
+git commit -m "feat(backend): use configurable github proxy for node upgrades"
+```
+
+---
+
+## Task 2: 后端 - mutations.go 修改
+
+**Files:**
+- Modify: `go-backend/internal/http/handler/mutations.go`
+
+- [x] **Step 1: 修改 nodeInstall 函数使用动态配置**
+
+找到第 456 行：
+```go
+	cmd := fmt.Sprintf("curl -L https://gcode.hostcentral.cc/https://github.com/Sagit-chu/flvx/releases/download/%s/install.sh -o ./install.sh && chmod +x ./install.sh && VERSION=%s ./install.sh -a %s -s %s", version, version, processServerAddress(panelAddr), secret)
+```
+
+替换为：
+```go
+	enabled, proxyURL := h.getGithubProxyConfig()
+
+	var cmd string
+	if enabled {
+		cmd = fmt.Sprintf("curl -L %s/https://github.com/%s/releases/download/%s/install.sh -o ./install.sh && chmod +x ./install.sh && PROXY_ENABLED=true PROXY_URL=%s VERSION=%s ./install.sh -a %s -s %s",
+			proxyURL, githubRepo, version, proxyURL, version, processServerAddress(panelAddr), secret)
+	} else {
+		cmd = fmt.Sprintf("curl -L https://github.com/%s/releases/download/%s/install.sh -o ./install.sh && chmod +x ./install.sh && PROXY_ENABLED=false VERSION=%s ./install.sh -a %s -s %s",
+			githubRepo, version, version, processServerAddress(panelAddr), secret)
+	}
+```
+
+- [x] **Step 2: 验证编译**
+
+Run: `cd go-backend && go build ./...`
+Expected: 编译成功，无错误
+
+- [x] **Step 3: 提交**
+
+```bash
+git add go-backend/internal/http/handler/mutations.go
+git commit -m "feat(backend): use configurable github proxy for node install command"
+```
+
+---
+
+## Task 3: 前端 - config.tsx 添加配置项
+
+**Files:**
+- Modify: `vite-frontend/src/pages/config.tsx`
+
+- [x] **Step 1: 在 CONFIG_ITEMS 数组中添加配置项**
+
+找到第 158 行（`CONFIG_ITEMS` 数组的结束位置）：
+```go
+  {
+    key: "cloudflare_secret_key",
+    label: "Cloudflare Secret Key",
+    placeholder: "请输入 Cloudflare Secret Key",
+    description: "Cloudflare Turnstile 密钥",
+    type: "input",
+    dependsOn: "captcha_enabled",
+    dependsValue: "true",
+  },
+];
+```
+
+在 `];` 之前添加：
+```typescript
+  {
+    key: "github_proxy_enabled",
+    label: "开启 GitHub 加速",
+    description: "用于节点更新和安装脚本下载，解决部分地区 GitHub 访问受限问题",
+    type: "switch",
+  },
+  {
+    key: "github_proxy_url",
+    label: "加速地址",
+    placeholder: "https://gcode.hostcentral.cc",
+    description: "GitHub 下载加速代理地址，开启加速后生效",
+    type: "input",
+    dependsOn: "github_proxy_enabled",
+    dependsValue: "true",
+  },
+```
+
+- [x] **Step 2: 在缓存键列表中添加新键**
+
+找到第 179-190 行：
+```typescript
+  const configKeys = [
+    "app_name",
+    "captcha_enabled",
+    "cloudflare_site_key",
+    "cloudflare_secret_key",
+    "forward_compact_mode",
+    "monitor_tunnel_quality_enabled",
+    "ip",
+    "panel_domain",
+    "app_logo",
+    "app_favicon",
+  ];
+```
+
+在 `"app_favicon",` 之后添加：
+```typescript
+    "github_proxy_enabled",
+    "github_proxy_url",
+```
+
+- [x] **Step 3: 验证前端编译**
+
+Run: `cd vite-frontend && npm run build`
+Expected: 编译成功，无错误
+
+- [x] **Step 4: 提交**
+
+```bash
+git add vite-frontend/src/pages/config.tsx
+git commit -m "feat(frontend): add github proxy config settings"
+```
+
+---
+
+## Task 4: 安装脚本 - install.sh 修改
+
+**Files:**
+- Modify: `install.sh`
+
+- [x] **Step 1: 添加环境变量声明和修改 maybe_proxy_url 函数**
+
+找到第 28-32 行：
+```bash
+# 镜像加速（所有下载均经过镜像源，以支持 IPv6）
+maybe_proxy_url() {
+  local url="$1"
+  echo "https://gcode.hostcentral.cc/${url}"
+}
+```
+
+替换为：
+```bash
+# 镜像加速配置（可由面板传入或交互式询问）
+PROXY_ENABLED="${PROXY_ENABLED:-}"
+PROXY_URL="${PROXY_URL:-}"
+
+# 镜像加速
+maybe_proxy_url() {
+  local url="$1"
+
+  # 如果明确关闭加速
+  if [[ "$PROXY_ENABLED" == "false" ]]; then
+    echo "$url"
+    return
+  fi
+
+  # 默认开启加速
+  local proxy="${PROXY_URL:-gcode.hostcentral.cc}"
+
+  # 处理 URL 格式
+  if [[ "$proxy" == https://* || "$proxy" == http://* ]]; then
+    proxy="${proxy%/}"
+  else
+    proxy="https://${proxy}"
+  fi
+
+  echo "${proxy}/${url}"
+}
+
+# 询问加速配置（如果未由面板传入）
+ask_proxy_config() {
+  if [[ -n "$PROXY_ENABLED" ]]; then
+    return
+  fi
+
+  echo ""
+  echo "==============================================="
+  echo "           GitHub 加速配置"
+  echo "==============================================="
+  read -p "是否开启 GitHub 加速? (Y/n): " proxy_choice
+  case "$proxy_choice" in
+    n|N)
+      PROXY_ENABLED="false"
+      echo "已关闭加速，将直连 GitHub"
+      ;;
+    *)
+      PROXY_ENABLED="true"
+      read -p "加速地址 (默认 gcode.hostcentral.cc): " input_url
+      PROXY_URL="${input_url:-gcode.hostcentral.cc}"
+      echo "已开启加速: $PROXY_URL"
+      ;;
+  esac
+  echo "==============================================="
+}
+```
+
+- [x] **Step 2: 修改 install_flux_agent 函数添加询问**
+
+找到第 211-214 行：
+```bash
+# 安装功能
+install_flux_agent() {
+  echo "🚀 开始安装 flux_agent..."
+  get_config_params
+```
+
+替换为：
+```bash
+# 安装功能
+install_flux_agent() {
+  echo "🚀 开始安装 flux_agent..."
+
+  # 询问加速配置（如果未由面板传入）
+  ask_proxy_config
+
+  get_config_params
+```
+
+- [ ] **Step 3: 提交**
+
+```bash
+git add install.sh
+git commit -m "feat(script): add configurable github proxy for install.sh"
+```
+
+---
+
+## Task 5: 安装脚本 - panel_install.sh 修改
+
+**Files:**
+- Modify: `panel_install.sh`
+
+- [x] **Step 1: 添加环境变量声明和修改 maybe_proxy_url 函数**
+
+找到第 16-20 行：
+```bash
+# 镜像加速（所有下载均经过镜像源，以支持 IPv6）
+maybe_proxy_url() {
+  local url="$1"
+  echo "https://gcode.hostcentral.cc/${url}"
+}
+```
+
+替换为：
+```bash
+# 镜像加速配置（可由面板传入或交互式询问）
+PROXY_ENABLED="${PROXY_ENABLED:-}"
+PROXY_URL="${PROXY_URL:-}"
+
+# 镜像加速
+maybe_proxy_url() {
+  local url="$1"
+
+  # 如果明确关闭加速
+  if [[ "$PROXY_ENABLED" == "false" ]]; then
+    echo "$url"
+    return
+  fi
+
+  # 默认开启加速
+  local proxy="${PROXY_URL:-gcode.hostcentral.cc}"
+
+  # 处理 URL 格式
+  if [[ "$proxy" == https://* || "$proxy" == http://* ]]; then
+    proxy="${proxy%/}"
+  else
+    proxy="https://${proxy}"
+  fi
+
+  echo "${proxy}/${url}"
+}
+
+# 询问加速配置（如果未由面板传入）
+ask_proxy_config() {
+  if [[ -n "$PROXY_ENABLED" ]]; then
+    return
+  fi
+
+  echo ""
+  echo "==============================================="
+  echo "           GitHub 加速配置"
+  echo "==============================================="
+  read -p "是否开启 GitHub 加速? (Y/n): " proxy_choice
+  case "$proxy_choice" in
+    n|N)
+      PROXY_ENABLED="false"
+      echo "已关闭加速，将直连 GitHub"
+      ;;
+    *)
+      PROXY_ENABLED="true"
+      read -p "加速地址 (默认 gcode.hostcentral.cc): " input_url
+      PROXY_URL="${input_url:-gcode.hostcentral.cc}"
+      echo "已开启加速: $PROXY_URL"
+      ;;
+  esac
+  echo "==============================================="
+}
+```
+
+- [x] **Step 2: 修改 install_panel 函数添加询问**
+
+找到第 375-378 行：
+```bash
+# 安装功能
+install_panel() {
+  echo "🚀 开始安装面板..."
+  check_docker
+  get_config_params
+```
+
+替换为：
+```bash
+# 安装功能
+install_panel() {
+  echo "🚀 开始安装面板..."
+
+  # 询问加速配置（如果未由面板传入）
+  ask_proxy_config
+
+  check_docker
+  get_config_params
+```
+
+- [ ] **Step 3: 提交**
+
+```bash
+git add panel_install.sh
+git commit -m "feat(script): add configurable github proxy for panel_install.sh"
+```
+
+---
+
+## Task 6: 最终验证和提交
+
+- [x] **Step 1: 验证后端编译**
+
+Run: `cd go-backend && go build ./...`
+Expected: 编译成功
+
+- [x] **Step 2: 验证前端编译**
+
+Run: `cd vite-frontend && npm run build`
+Expected: 编译成功
+
+- [x] **Step 3: 验证脚本语法**
+
+Run: `bash -n install.sh && bash -n panel_install.sh && bash test-install-scripts-proxy.sh`
+Expected: 无语法错误，且脚本代理回归测试通过
+
+- [ ] **Step 4: 推送所有提交**
+
+```bash
+git push
+```
+
+---
+
+## 验收标准
+
+1. 面板设置页面显示 GitHub 加速配置项
+2. 开关关闭后，下载地址直连 GitHub
+3. 自定义加速地址后，节点更新和安装命令使用自定义地址
+4. 安装脚本支持交互式询问加速配置
+5. 面板生成的安装命令包含加速配置环境变量

docs/superpowers/plans/2026-04-03-commercial-white-label-plan.md

@@ -0,0 +1,220 @@
+# Commercial White-Label Implementation Plan
+
+> **For agentic workers:** REQUIRED SUB-SKILL: Use superpowers:subagent-driven-development (recommended) or superpowers:executing-plans to implement this plan task-by-task. Steps use checkbox (`- [ ]`) syntax for tracking.
+
+**Goal:** Allow users with a valid license key to activate commercial white-label features, enabling them to remove FLVX branding and use their own app name, logos, and footer.
+**Architecture:** Backend API handles license validation and stores state (`is_commercial`). Both frontend and backend check this state to conditionally render or allow modifications to brand config.
+**Tech Stack:** Go (Backend API), React + Vite (Frontend UI).
+
+---
+
+### Task 1: Backend License Activation Endpoint
+
+**Files:**
+- Modify: `go-backend/internal/http/handler/handler.go`
+
+- [ ] **Step 1: Add license request struct**
+Add the `licenseActivateRequest` struct in `handler.go`.
+
+```go
+type licenseActivateRequest struct {
+	LicenseKey string `json:"license_key"`
+}
+```
+
+- [ ] **Step 2: Add `licenseActivate` handler method**
+Add the method to validate the key in `handler.go`.
+
+```go
+func (h *Handler) licenseActivate(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodPost {
+		response.WriteJSON(w, response.ErrDefault("请求失败"))
+		return
+	}
+
+	var req licenseActivateRequest
+	if err := decodeJSON(r.Body, &req); err != nil {
+		response.WriteJSON(w, response.ErrDefault("授权码不能为空"))
+		return
+	}
+	
+	key := strings.TrimSpace(req.LicenseKey)
+	if !strings.HasPrefix(key, "FLVX-") {
+		response.WriteJSON(w, response.ErrDefault("无效的商业授权码"))
+		return
+	}
+
+	now := time.Now().UnixMilli()
+	if err := h.repo.UpsertConfig("license_key", key, now); err != nil {
+		response.WriteJSON(w, response.Err(-2, err.Error()))
+		return
+	}
+	if err := h.repo.UpsertConfig("is_commercial", "true", now); err != nil {
+		response.WriteJSON(w, response.Err(-2, err.Error()))
+		return
+	}
+
+	response.WriteJSON(w, response.OKEmpty())
+}
+```
+
+- [ ] **Step 3: Register the route**
+In `handler.go` inside `Register(mux *http.ServeMux)`, add the route.
+
+```go
+	mux.HandleFunc("/api/v1/license/activate", h.licenseActivate)
+```
+
+- [ ] **Step 4: Commit**
+```bash
+git add go-backend/internal/http/handler/handler.go
+git commit -m "feat: add license activation endpoint"
+```
+
+### Task 2: Backend Config Update Validation
+
+**Files:**
+- Modify: `go-backend/internal/http/handler/handler.go`
+
+- [ ] **Step 1: Add permission check in `updateConfigs`**
+In `updateConfigs`, fetch `isCommercial := h.repo.GetConfig("is_commercial")`. Inside the loop, check if the user is trying to update protected keys.
+
+```go
+	isCommercial, _ := h.repo.GetConfig("is_commercial")
+	protectedKeys := map[string]bool{
+		"app_name":          true,
+		"app_logo":          true,
+		"app_favicon":       true,
+		"hide_footer_brand": true,
+	}
+```
+Inside `for k, v := range payload`:
+```go
+		if protectedKeys[key] && isCommercial.Value != "true" {
+			response.WriteJSON(w, response.ErrDefault("需要商业版授权"))
+			return
+		}
+```
+
+- [ ] **Step 2: Add permission check in `updateSingleConfig`**
+In `updateSingleConfig`, do the same check before calling `normalizeAndValidateConfigValue`.
+
+```go
+	isCommercial, _ := h.repo.GetConfig("is_commercial")
+	if (name == "app_name" || name == "app_logo" || name == "app_favicon" || name == "hide_footer_brand") && isCommercial.Value != "true" {
+		response.WriteJSON(w, response.ErrDefault("需要商业版授权"))
+		return
+	}
+```
+
+- [ ] **Step 3: Commit**
+```bash
+git add go-backend/internal/http/handler/handler.go
+git commit -m "feat: add authorization check for commercial config keys"
+```
+
+### Task 3: Frontend API & Site Config Update
+
+**Files:**
+- Modify: `vite-frontend/src/api/index.ts`
+- Modify: `vite-frontend/src/config/site.ts`
+
+- [ ] **Step 1: Add `activateLicense` API**
+In `vite-frontend/src/api/index.ts`:
+
+```typescript
+export const activateLicense = (licenseKey: string) =>
+  Network.post("/license/activate", { license_key: licenseKey });
+```
+
+- [ ] **Step 2: Update `siteConfig` defaults**
+In `vite-frontend/src/config/site.ts`, inside `getInitialConfig()`, add properties.
+
+```typescript
+    app_logo: cachedAppLogo,
+    app_favicon: cachedAppFavicon,
+    is_commercial: configCache.get("is_commercial") === "true",
+    hide_footer_brand: configCache.get("hide_footer_brand") === "true",
+```
+
+- [ ] **Step 3: Update `updateSiteConfig`**
+In `updateSiteConfig` inside `site.ts`, extract and update `is_commercial` and `hide_footer_brand`.
+
+```typescript
+  const isCommercial = resolvedConfigMap.is_commercial === "true";
+  const hideFooterBrand = resolvedConfigMap.hide_footer_brand === "true";
+  siteConfig.is_commercial = isCommercial;
+  siteConfig.hide_footer_brand = hideFooterBrand;
+```
+
+- [ ] **Step 4: Commit**
+```bash
+git add vite-frontend/src/api/index.ts vite-frontend/src/config/site.ts
+git commit -m "feat: add frontend api and update site config state for license"
+```
+
+### Task 4: Frontend Footer Component Update
+
+**Files:**
+- Modify: `vite-frontend/src/components/version-footer.tsx`
+
+- [ ] **Step 1: Conditionally hide "Powered by FLVX"**
+In the render block, wrap the `Powered by FLVX` text.
+
+```tsx
+      {siteConfig.hide_footer_brand !== true && (
+        <p className={poweredClassName}>
+          Powered by{" "}
+          <a
+            className="text-gray-500 dark:text-gray-400 hover:text-gray-600 dark:hover:text-gray-300 transition-colors"
+            href={siteConfig.github_repo}
+            rel="noopener noreferrer"
+            target="_blank"
+          >
+            FLVX
+          </a>
+        </p>
+      )}
+```
+
+- [ ] **Step 2: Commit**
+```bash
+git add vite-frontend/src/components/version-footer.tsx
+git commit -m "feat: conditionally hide flvx footer brand"
+```
+
+### Task 5: Frontend Settings Page UI Update
+
+**Files:**
+- Modify: `vite-frontend/src/pages/config.tsx`
+
+- [ ] **Step 1: Add config keys to initialization**
+In `getInitialConfigs`, add `"is_commercial"` and `"hide_footer_brand"` to `configKeys`.
+
+- [ ] **Step 2: Add `hide_footer_brand` switch field**
+Add it to the `CONFIG_ITEMS` array.
+
+```typescript
+  {
+    key: "hide_footer_brand",
+    label: "隐藏页面底部 FLVX 版权信息",
+    description: "需商业版授权才能生效",
+    type: "switch",
+  },
+```
+
+- [ ] **Step 3: Add license activation UI**
+Above the System Config Card (near `value="configs"`), add a new `Card` for "商业版授权". You will need a local state `licenseKey` and an `handleActivateLicense` function that calls `activateLicense(licenseKey)` and refetches configs on success. 
+
+- [ ] **Step 4: Disable brand settings when not commercial**
+In `renderConfigItem`, compute `isDisabled` and pass it to the `<Input>`, `<Switch>`, and `BrandUploading` UI. Update the logic to disable modifications and add a lock icon or a tooltip explaining that a commercial license is required.
+
+```typescript
+const isCommercialDisabled = ["app_name", "app_logo", "app_favicon", "hide_footer_brand"].includes(item.key) && configs.is_commercial !== "true";
+```
+
+- [ ] **Step 5: Commit**
+```bash
+git add vite-frontend/src/pages/config.tsx
+git commit -m "feat: ui settings for commercial white-label and license activation"
+```

docs/superpowers/plans/2026-04-03-keygen-integration-plan.md

@@ -0,0 +1,347 @@
+# Commercial White-Label (Keygen) Implementation Plan
+
+> **For agentic workers:** REQUIRED SUB-SKILL: Use superpowers:subagent-driven-development (recommended) or superpowers:executing-plans to implement this plan task-by-task. Steps use checkbox (`- [ ]`) syntax for tracking.
+
+**Goal:** Implement Keygen.sh license activation and periodic validation to manage commercial white-label features, replacing the temporary mock logic.
+**Architecture:** The backend generates a machine fingerprint, validates the license via the Keygen.sh API, and creates a machine associated with the license. A periodic job verifies the license status to support remote revocation.
+**Tech Stack:** Go (Backend API), Keygen.sh API.
+
+---
+
+### Task 1: Generate and Store Machine Fingerprint
+
+**Files:**
+- Modify: `go-backend/internal/http/handler/handler.go`
+
+- [ ] **Step 1: Add `getOrCreateMachineFingerprint` helper function**
+Add a helper function in `handler.go` (or a dedicated license file) to get or generate the machine fingerprint. Use `github.com/google/uuid`.
+
+```go
+import "github.com/google/uuid"
+
+func (h *Handler) getOrCreateMachineFingerprint() (string, error) {
+	fp, _ := h.repo.GetViteConfigValue("machine_fingerprint")
+	if fp != "" {
+		return fp, nil
+	}
+
+	newFp := uuid.New().String()
+	now := time.Now().UnixMilli()
+	if err := h.repo.UpsertConfig("machine_fingerprint", newFp, now); err != nil {
+		return "", err
+	}
+	return newFp, nil
+}
+```
+
+- [ ] **Step 2: Commit**
+```bash
+git add go-backend/internal/http/handler/handler.go
+git commit -m "feat: add machine fingerprint generation"
+```
+
+### Task 2: Create Keygen Client Package
+
+**Files:**
+- Create: `go-backend/internal/license/keygen.go`
+
+- [ ] **Step 1: Create Keygen client structs and interface**
+Create the file and define the request/response structs for Keygen's `/licenses/actions/validate-key` and `/machines` endpoints. Also define an interface for the client.
+
+```go
+package license
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"io"
+	"net/http"
+	"time"
+)
+
+type KeygenClient struct {
+	AccountID string
+	Token     string
+	HTTPClient *http.Client
+}
+
+func NewKeygenClient(accountID, token string) *KeygenClient {
+	return &KeygenClient{
+		AccountID: accountID,
+		Token:     token,
+		HTTPClient: &http.Client{Timeout: 10 * time.Second},
+	}
+}
+
+type ValidateResponse struct {
+	Meta struct {
+		Valid bool   `json:"valid"`
+		Code  string `json:"code"`
+	} `json:"meta"`
+	Data struct {
+		ID string `json:"id"`
+	} `json:"data"`
+}
+
+type ActivateMachineRequest struct {
+	Data struct {
+		Type       string `json:"type"`
+		Attributes struct {
+			Fingerprint string `json:"fingerprint"`
+		} `json:"attributes"`
+		Relationships struct {
+			License struct {
+				Data struct {
+					Type string `json:"type"`
+					ID   string `json:"id"`
+				} `json:"data"`
+			} `json:"license"`
+		} `json:"relationships"`
+	} `json:"data"`
+}
+```
+
+- [ ] **Step 2: Implement `ValidateKey`**
+Add the `ValidateKey` method.
+
+```go
+func (c *KeygenClient) ValidateKey(key string) (*ValidateResponse, error) {
+	url := fmt.Sprintf("https://api.keygen.sh/v1/accounts/%s/licenses/actions/validate-key", c.AccountID)
+	
+	reqBody := map[string]interface{}{
+		"meta": map[string]string{
+			"key": key,
+		},
+	}
+	bodyBytes, _ := json.Marshal(reqBody)
+
+	req, _ := http.NewRequest(http.MethodPost, url, bytes.NewBuffer(bodyBytes))
+	req.Header.Set("Content-Type", "application/json")
+	req.Header.Set("Accept", "application/json")
+	if c.Token != "" {
+		req.Header.Set("Authorization", "Bearer "+c.Token)
+	}
+
+	resp, err := c.HTTPClient.Do(req)
+	if err != nil {
+		return nil, err
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != http.StatusOK {
+		return nil, fmt.Errorf("keygen api error: status %d", resp.StatusCode)
+	}
+
+	var valResp ValidateResponse
+	if err := json.NewDecoder(resp.Body).Decode(&valResp); err != nil {
+		return nil, err
+	}
+
+	return &valResp, nil
+}
+```
+
+- [ ] **Step 3: Implement `ActivateMachine`**
+Add the `ActivateMachine` method.
+
+```go
+func (c *KeygenClient) ActivateMachine(licenseID, fingerprint string) error {
+	url := fmt.Sprintf("https://api.keygen.sh/v1/accounts/%s/machines", c.AccountID)
+	
+	var reqBody ActivateMachineRequest
+	reqBody.Data.Type = "machines"
+	reqBody.Data.Attributes.Fingerprint = fingerprint
+	reqBody.Data.Relationships.License.Data.Type = "licenses"
+	reqBody.Data.Relationships.License.Data.ID = licenseID
+
+	bodyBytes, _ := json.Marshal(reqBody)
+
+	req, _ := http.NewRequest(http.MethodPost, url, bytes.NewBuffer(bodyBytes))
+	req.Header.Set("Content-Type", "application/json")
+	req.Header.Set("Accept", "application/json")
+	if c.Token != "" {
+		req.Header.Set("Authorization", "Bearer "+c.Token)
+	}
+
+	resp, err := c.HTTPClient.Do(req)
+	if err != nil {
+		return err
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode == http.StatusCreated || resp.StatusCode == http.StatusOK {
+		return nil
+	}
+
+	if resp.StatusCode == http.StatusConflict { // 409 usually means fingerprint already exists
+		return nil // Machine might already be registered
+	}
+
+	body, _ := io.ReadAll(resp.Body)
+	return fmt.Errorf("failed to activate machine: status %d, response: %s", resp.StatusCode, string(body))
+}
+```
+
+- [ ] **Step 4: Commit**
+```bash
+git add go-backend/internal/license/keygen.go
+git commit -m "feat: add keygen.sh api client"
+```
+
+### Task 3: Integrate Keygen into License Activation Endpoint
+
+**Files:**
+- Modify: `go-backend/internal/http/handler/handler.go`
+
+- [ ] **Step 1: Update `licenseActivate` logic**
+Modify `licenseActivate` to use the Keygen client instead of the mock logic. Note: For this implementation, we will use an environment variable `KEYGEN_ACCOUNT_ID`. We can use `os.Getenv` directly for simplicity, or hardcode a fallback if not present.
+
+```go
+import (
+	"go-backend/internal/license"
+	"os"
+)
+
+func (h *Handler) licenseActivate(w http.ResponseWriter, r *http.Request) {
+	// ... (keep request parsing)
+
+	key := strings.TrimSpace(req.LicenseKey)
+	if key == "" {
+		response.WriteJSON(w, response.ErrDefault("授权码不能为空"))
+		return
+	}
+
+	accountID := os.Getenv("KEYGEN_ACCOUNT_ID")
+	if accountID == "" {
+		// Fallback for mock/development if no keygen account configured
+		if strings.HasPrefix(key, "FLVX-") {
+			now := time.Now().UnixMilli()
+			h.repo.UpsertConfig("license_key", key, now)
+			h.repo.UpsertConfig("is_commercial", "true", now)
+			response.WriteJSON(w, response.OKEmpty())
+			return
+		}
+		response.WriteJSON(w, response.ErrDefault("系统未配置 Keygen 账号 ID"))
+		return
+	}
+
+	fingerprint, err := h.getOrCreateMachineFingerprint()
+	if err != nil {
+		response.WriteJSON(w, response.ErrDefault("生成设备指纹失败"))
+		return
+	}
+
+	client := license.NewKeygenClient(accountID, "") // Token may be optional for validate-key depending on policy, or can be passed if needed
+	
+	valResp, err := client.ValidateKey(key)
+	if err != nil {
+		response.WriteJSON(w, response.ErrDefault("连接授权服务器失败: "+err.Error()))
+		return
+	}
+
+	if !valResp.Meta.Valid {
+		response.WriteJSON(w, response.ErrDefault("授权码无效或已过期 (Code: "+valResp.Meta.Code+")"))
+		return
+	}
+
+	// Try to activate machine
+	err = client.ActivateMachine(valResp.Data.ID, fingerprint)
+	if err != nil {
+		response.WriteJSON(w, response.ErrDefault("设备绑定失败: "+err.Error()))
+		return
+	}
+
+	now := time.Now().UnixMilli()
+	if err := h.repo.UpsertConfig("license_key", key, now); err != nil {
+		response.WriteJSON(w, response.Err(-2, err.Error()))
+		return
+	}
+	if err := h.repo.UpsertConfig("is_commercial", "true", now); err != nil {
+		response.WriteJSON(w, response.Err(-2, err.Error()))
+		return
+	}
+
+	response.WriteJSON(w, response.OKEmpty())
+}
+```
+
+- [ ] **Step 2: Commit**
+```bash
+git add go-backend/internal/http/handler/handler.go
+git commit -m "feat: integrate keygen into license activation endpoint"
+```
+
+### Task 4: Add Periodic License Validation Job
+
+**Files:**
+- Modify: `go-backend/internal/http/handler/jobs.go`
+- Modify: `go-backend/internal/http/handler/handler.go`
+
+- [ ] **Step 1: Add `validateLicenseJob` function in `jobs.go`**
+Create a new function that performs the background validation.
+
+```go
+import "os"
+
+func (h *Handler) validateLicenseJob() {
+	if h == nil || h.repo == nil {
+		return
+	}
+
+	accountID := os.Getenv("KEYGEN_ACCOUNT_ID")
+	if accountID == "" {
+		return // Skip if not configured
+	}
+
+	key, _ := h.repo.GetViteConfigValue("license_key")
+	isCommercial, _ := h.repo.GetViteConfigValue("is_commercial")
+
+	if key == "" || isCommercial != "true" {
+		return // Nothing to validate
+	}
+
+	client := license.NewKeygenClient(accountID, "")
+	valResp, err := client.ValidateKey(key)
+	
+	if err != nil {
+		// Network error or timeout. We implement a grace period by NOT revoking immediately here.
+		// In a production system, you might count consecutive failures.
+		// For now, we skip revocation on network errors.
+		return
+	}
+
+	if !valResp.Meta.Valid {
+		// License is invalid (e.g., revoked, suspended, expired). Downgrade the system.
+		now := time.Now().UnixMilli()
+		_ = h.repo.UpsertConfig("is_commercial", "false", now)
+		// We could optionally clear brand configs here, or just let them be disabled in UI
+	}
+}
+```
+
+- [ ] **Step 2: Register the job in `RunJobs`**
+In `handler.go` or `jobs.go`, wherever the periodic cron jobs are registered (usually `go h.runJobs()`), ensure `validateLicenseJob` is called periodically (e.g., every 12 hours). Look for `h.startCronJobs()` or similar in `handler.go`. 
+
+If a central `RunJobs` loop exists in `jobs.go` (like a `for` loop with a `time.Ticker`), add it there. If not, create a simple goroutine in `Register` or `NewHandler`.
+
+*Assuming there's a `startJobs` or `Init` block in `handler.go`:*
+```go
+// Inside handler initialization or Register:
+go func() {
+	ticker := time.NewTicker(12 * time.Hour)
+	defer ticker.Stop()
+	for {
+		select {
+		case <-ticker.C:
+			h.validateLicenseJob()
+		}
+	}
+}()
+```
+
+- [ ] **Step 3: Commit**
+```bash
+git add go-backend/internal/http/handler/jobs.go go-backend/internal/http/handler/handler.go
+git commit -m "feat: add periodic license validation job"
+```

docs/superpowers/plans/2026-04-04-announcement-popup-plan.md

@@ -0,0 +1,262 @@
+# Announcement Popup Notification Implementation Plan
+
+> **For agentic workers:** REQUIRED SUB-SKILL: Use superpowers:subagent-driven-development (recommended) or superpowers:executing-plans to implement this plan task-by-task. Steps use checkbox (`- [ ]`) syntax for tracking.
+
+**Goal:** Add a popup modal for announcements that automatically shows to users when a new or updated announcement is published.
+
+**Architecture:** We will modify the Go backend to return `update_time` along with the announcement data. In the Vite frontend, we will store the user's `flvx_announcement_seen_time` in `localStorage`. If the fetched `update_time` is greater than the stored timestamp, we trigger a NextUI Modal displaying the announcement content.
+
+**Tech Stack:** Go, Vite, React, TailwindCSS, NextUI.
+
+---
+
+### Task 1: Update API Response in Go Backend
+
+**Files:**
+- Modify: `go-backend/internal/http/handler/handler.go`
+
+- [ ] **Step 1: Write the minimal implementation**
+
+Modify the `getAnnouncement` function in `go-backend/internal/http/handler/handler.go`. 
+Find the response map inside `getAnnouncement` and add the `update_time` key:
+
+```go
+	if ann == nil {
+		response.WriteJSON(w, response.OK(map[string]interface{}{
+			"content":     "",
+			"enabled":     0,
+			"update_time": 0,
+		}))
+		return
+	}
+
+	updateTime := ann.CreatedTime
+	if ann.UpdatedTime.Valid {
+		updateTime = ann.UpdatedTime.Int64
+	}
+
+	response.WriteJSON(w, response.OK(map[string]interface{}{
+		"content":     ann.Content,
+		"enabled":     ann.Enabled,
+		"update_time": updateTime,
+	}))
+```
+
+- [ ] **Step 2: Commit**
+
+```bash
+git add go-backend/internal/http/handler/handler.go
+git commit -m "feat(api): include update_time in announcement response"
+```
+
+---
+
+### Task 2: Update Frontend API Interface
+
+**Files:**
+- Modify: `vite-frontend/src/api/index.ts`
+
+- [ ] **Step 1: Write the minimal implementation**
+
+Modify the `AnnouncementData` interface in `vite-frontend/src/api/index.ts` to include `update_time`.
+
+```typescript
+export interface AnnouncementData {
+  content: string;
+  enabled: number;
+  update_time?: number;
+}
+```
+
+- [ ] **Step 2: Commit**
+
+```bash
+git add vite-frontend/src/api/index.ts
+git commit -m "feat(ui): add update_time to AnnouncementData interface"
+```
+
+---
+
+### Task 3: Create AnnouncementModal Component
+
+**Files:**
+- Create: `vite-frontend/src/pages/dashboard/components/announcement-modal.tsx`
+
+- [ ] **Step 1: Write the minimal implementation**
+
+Create `vite-frontend/src/pages/dashboard/components/announcement-modal.tsx` with the following content:
+
+```tsx
+import type { AnnouncementData } from "@/api";
+import { Button } from "@/shadcn-bridge/heroui/button";
+import {
+  Modal,
+  ModalBody,
+  ModalContent,
+  ModalFooter,
+  ModalHeader,
+} from "@/shadcn-bridge/heroui/modal";
+import ReactMarkdown from "react-markdown";
+import remarkGfm from "remark-gfm";
+
+interface AnnouncementModalProps {
+  announcement: AnnouncementData;
+  isOpen: boolean;
+  onClose: () => void;
+  onDontShowAgain: () => void;
+}
+
+export const AnnouncementModal = ({
+  announcement,
+  isOpen,
+  onClose,
+  onDontShowAgain,
+}: AnnouncementModalProps) => {
+  return (
+    <Modal isOpen={isOpen} onOpenChange={(open) => !open && onClose()} size="2xl">
+      <ModalContent>
+        <ModalHeader className="flex flex-col gap-1">平台公告</ModalHeader>
+        <ModalBody>
+          <div className="prose prose-sm dark:prose-invert max-w-none max-h-[60vh] overflow-y-auto">
+            <ReactMarkdown remarkPlugins={[remarkGfm]}>
+              {announcement.content}
+            </ReactMarkdown>
+          </div>
+        </ModalBody>
+        <ModalFooter>
+          <Button variant="flat" onPress={onDontShowAgain}>
+            不再提示
+          </Button>
+          <Button color="primary" onPress={onClose}>
+            关闭
+          </Button>
+        </ModalFooter>
+      </ModalContent>
+    </Modal>
+  );
+};
+```
+
+- [ ] **Step 2: Commit**
+
+```bash
+git add vite-frontend/src/pages/dashboard/components/announcement-modal.tsx
+git commit -m "feat(ui): create AnnouncementModal component"
+```
+
+---
+
+### Task 4: Integrate Modal State in Dashboard Custom Hook
+
+**Files:**
+- Modify: `vite-frontend/src/pages/dashboard/use-dashboard-data.ts`
+
+- [ ] **Step 1: Update the hook return type interface**
+
+At the top of `vite-frontend/src/pages/dashboard/use-dashboard-data.ts` where `DashboardData` is or similar, add the new properties (if it uses an explicit return type). If it's inferred, skip this. Wait, let's check the code:
+
+```typescript
+  isAnnouncementModalOpen: boolean;
+  setIsAnnouncementModalOpen: (isOpen: boolean) => void;
+  dismissAnnouncementModal: () => void;
+```
+Ensure they are added to the returned object at the bottom of the `useDashboardData` hook.
+
+Find the `const loadAnnouncement` function. 
+
+- [ ] **Step 2: Write the minimal implementation**
+
+First, add state at the top of the hook:
+```typescript
+  const [isAnnouncementModalOpen, setIsAnnouncementModalOpen] = useState(false);
+```
+
+Then, modify the `loadAnnouncement` logic inside `useDashboardData`:
+```typescript
+      if (res.code === 0 && res.data && res.data.enabled === 1) {
+        setAnnouncement(res.data);
+        
+        try {
+          const storedTimeStr = localStorage.getItem("flvx_announcement_seen_time");
+          const storedTime = storedTimeStr ? parseInt(storedTimeStr, 10) : 0;
+          const updateTime = res.data.update_time || 0;
+          
+          if (updateTime > storedTime) {
+            setIsAnnouncementModalOpen(true);
+          }
+        } catch (err) {
+          console.warn("Failed to read localStorage for announcement state", err);
+          setIsAnnouncementModalOpen(true);
+        }
+      } else {
+        setAnnouncement(null);
+      }
+```
+
+Add the dismiss handler inside the hook:
+```typescript
+  const dismissAnnouncementModal = useCallback(() => {
+    setIsAnnouncementModalOpen(false);
+    if (announcement && announcement.update_time) {
+      try {
+        localStorage.setItem("flvx_announcement_seen_time", announcement.update_time.toString());
+      } catch (err) {
+        console.warn("Failed to set localStorage for announcement state", err);
+      }
+    }
+  }, [announcement]);
+```
+
+Ensure these are included in the return object of the hook:
+```typescript
+    isAnnouncementModalOpen,
+    setIsAnnouncementModalOpen,
+    dismissAnnouncementModal,
+```
+
+- [ ] **Step 3: Commit**
+
+```bash
+git add vite-frontend/src/pages/dashboard/use-dashboard-data.ts
+git commit -m "feat(ui): manage announcement modal state in dashboard hook"
+```
+
+---
+
+### Task 5: Add Modal to Dashboard Layout
+
+**Files:**
+- Modify: `vite-frontend/src/pages/dashboard.tsx`
+
+- [ ] **Step 1: Write the minimal implementation**
+
+Import the modal component at the top:
+```tsx
+import { AnnouncementModal } from "@/pages/dashboard/components/announcement-modal";
+```
+
+Add the new properties to the destructured `useDashboardData` object:
+```tsx
+    isAnnouncementModalOpen,
+    setIsAnnouncementModalOpen,
+    dismissAnnouncementModal,
+```
+
+Add the modal instance near the end of the dashboard rendering (just below `{announcement && <AnnouncementBanner ... />}` or inside the main `<div>`):
+```tsx
+      {announcement && (
+        <AnnouncementModal
+          announcement={announcement}
+          isOpen={isAnnouncementModalOpen}
+          onClose={() => setIsAnnouncementModalOpen(false)}
+          onDontShowAgain={dismissAnnouncementModal}
+        />
+      )}
+```
+
+- [ ] **Step 2: Commit**
+
+```bash
+git add vite-frontend/src/pages/dashboard.tsx
+git commit -m "feat(ui): add announcement modal to dashboard layout"
+```

docs/superpowers/plans/2026-04-04-flvx-ios26-redesign-plan.md

@@ -0,0 +1,140 @@
+# Flvx iOS 26 Liquid Glass UI Redesign Implementation Plan
+
+> **For agentic workers:** REQUIRED SUB-SKILL: Use superpowers:subagent-driven-development (recommended) or superpowers:executing-plans to implement this plan task-by-task. Steps use checkbox (`- [ ]`) syntax for tracking.
+
+**Goal:** Transform the Flvx frontend interface entirely into an "Apple iOS 26 Liquid Glass" visual style by utilizing high-radius squircles, heavy background blurs, mesh gradients, and highly semantic translucent containers.
+
+**Architecture:** We will approach this from the ground up: first defining the global TailwindCSS design tokens and the base mesh-gradient layout, then systematically replacing the structural styling inside each React page component (`vite-frontend/src/pages/*.tsx`).
+
+**Tech Stack:** React DOM, TailwindCSS (v4), shadcn-bridge (HeroUI), Vite
+
+---
+
+### Task 1: Setup Global CSS Variables and App Shell
+
+**Files:**
+- Modify: `vite-frontend/src/styles/globals.css` (or `index.css`)
+- Modify: `vite-frontend/tailwind.config.js`
+- Modify: `vite-frontend/src/App.tsx` (or `main.tsx` / `layouts` depending on structural entry point)
+
+- [ ] **Step 1: Inject Liquid Glass theme variables**
+  Open the main CSS file and add variables for the new blur radius, box-shadows, and background gradients.
+  ```css
+  :root {
+    --glass-bg: rgba(255, 255, 255, 0.6);
+    --glass-border: rgba(255, 255, 255, 0.8);
+    --glass-card: rgba(255, 255, 255, 0.7);
+    --glass-overlay: rgba(0, 0, 0, 0.3);
+  }
+  .dark {
+    --glass-bg: rgba(30, 30, 30, 0.6);
+    --glass-border: rgba(255, 255, 255, 0.15);
+    --glass-card: rgba(40, 40, 40, 0.6);
+  }
+  .bg-mesh-gradient {
+    background: radial-gradient(at 0% 0%, #ff9a9e 0%, transparent 50%),
+                radial-gradient(at 100% 0%, #fecfef 0%, transparent 50%),
+                radial-gradient(at 100% 100%, #c2e9fb 0%, transparent 50%),
+                radial-gradient(at 0% 100%, #a1c4fd 0%, transparent 50%);
+    background-color: #f2f2f7;
+  }
+  ```
+
+- [ ] **Step 2: Update App Layout**
+  Modify the root app container to use `.bg-mesh-gradient` and ensure the main container occupies `min-h-screen`.
+
+### Task 2: Refactor Global Components (Card & Modal)
+
+**Files:**
+- Modify: `vite-frontend/src/shadcn-bridge/heroui/card.tsx`
+- Modify: `vite-frontend/src/shadcn-bridge/heroui/modal.tsx`
+
+- [ ] **Step 1: Liquid Card Base**
+  Update the default className string for `Card` to incorporate: `backdrop-blur-3xl bg-white/60 dark:bg-zinc-900/60 border border-white/80 dark:border-white/10 rounded-2xl shadow-[0_10px_30px_rgba(0,0,0,0.1)]`.
+
+- [ ] **Step 2: Modal Overlay Base**
+  Update the default overlay className for `Modal` to use `bg-black/30 backdrop-blur-sm`, and its content panel to use the same `glass_card` classes as the Card component but with `rounded-3xl`.
+
+### Task 3: Redesign Dashboard Page
+
+**Files:**
+- Modify: `vite-frontend/src/pages/dashboard.tsx`
+
+- [ ] **Step 1: Replace hardcoded borders/bg with glass semantics**
+  Find hardcoded `bg-white`, `border-gray-200`, `shadow-md` inside `DashboardPage` and `MetricCard`, replace with `bg-white/60 backdrop-blur-3xl shadow-[0_10px_30px_rgba(0,0,0,0.1)] border-white/80 rounded-2xl`.
+- [ ] **Step 2: Adjust spacing**
+  Ensure all metric cards have uniform `h-48` equivalent height and are strictly `rounded-2xl` with `p-6` padding.
+- [ ] **Step 3: Update Flow Chart Card**
+  Replace standard grid backgrounds in the flow chart with transparent spacing and vibrant `bg-blue-500` squircle bars without harsh borders.
+
+### Task 4: Redesign Node Management Page
+
+**Files:**
+- Modify: `vite-frontend/src/pages/node.tsx`
+
+- [ ] **Step 1: Replace standard List/Table view with Grid Cards**
+  Update the node rendering map to output `glass_card` containers (`rounded-2xl`, blur, padding `p-6`).
+- [ ] **Step 2: Apply semantic status highlights**
+  Refactor the Online/Offline badges into pill-shapes (`rounded-full`) using the defined semantic colors (e.g. `bg-green-500/20 text-green-600` with a 6px inner dot `bg-green-500`).
+- [ ] **Step 3: Embed Micro-charts**
+  For CPU/RAM data inside the node card, switch standard progress bars to ultra-thin (height 4px) continuous lines utilizing standard brand colors.
+
+### Task 5: Redesign Tunnels & Rules Configuration
+
+**Files:**
+- Modify: `vite-frontend/src/pages/tunnel.tsx`
+- Modify: `vite-frontend/src/pages/forward.tsx`
+
+- [ ] **Step 1: Update Tunnel lists into nested Glass Panels**
+  Encapsulate each tunnel configuration into a wide `glass_card`.
+- [ ] **Step 2: Create Visual Rule Tags**
+  For the Forwarding rules, wrap the target IP/Port logic into visual badges: `bg-green-500/20` for Entry and `bg-blue-500/20` for Target.
+- [ ] **Step 3: Refactor the "Add Rule" Floating action**
+  Ensure the plus button follows the squircle format (`rounded-full`) with a prominent diffused shadow (`shadow-[0_4px_12px_rgba(0,122,255,0.3)]`).
+
+### Task 6: Redesign Monitor Page
+
+**Files:**
+- Modify: `vite-frontend/src/pages/monitor.tsx`
+
+- [ ] **Step 1: Style the Top Hero Metrics**
+  Replace flat stat boxes with high-contrast, large typography inside `glass_card` backgrounds.
+- [ ] **Step 2: Refactor Latency Indicators**
+  Format the connection list rows as `bg-white/50 dark:bg-black/30` strips with pill-shaped status tags (`Healthy`, `Warning`, `Offline`) mapping exactly to the green/orange/red semantics from the design spec.
+
+### Task 7: Redesign Group & Sharing Pages
+
+**Files:**
+- Modify: `vite-frontend/src/pages/group.tsx`
+- Modify: `vite-frontend/src/pages/panel-sharing.tsx`
+
+- [ ] **Step 1: Update Tab Switchers**
+  Refactor the internal navigation tabs (e.g., "Tunnel Groups" vs "User Groups") into an encapsulated `p-1 rounded-xl bg-white/40 backdrop-blur-lg` container with animated active states (`shadow-sm bg-white`).
+- [ ] **Step 2: Style Share Cards**
+  Transform flat panel sharing list items into rich `glass_card` entities. Highlight expiration dates with the accent text color.
+
+### Task 8: Redesign Settings, Config, and User Management
+
+**Files:**
+- Modify: `vite-frontend/src/pages/config.tsx`
+- Modify: `vite-frontend/src/pages/settings.tsx`
+- Modify: `vite-frontend/src/pages/user.tsx`
+- Modify: `vite-frontend/src/pages/limit.tsx`
+
+- [ ] **Step 1: Flatten Forms**
+  Convert traditional input groups into `rounded-xl bg-white/50 border border-white/60` containers. Remove outer boxing for standard `label + input` pairs.
+- [ ] **Step 2: iOS Toggle Switches**
+  Ensure that any `<Switch>` or `<Checkbox>` components use the new Accent brand color (`#007aff`) with full `rounded-full` geometry.
+- [ ] **Step 3: Refactor User Badges**
+  In `user.tsx`, replace text-based role columns with circular Avatar badges (e.g., `w-10 h-10 rounded-full bg-blue-500 text-white` with the first two letters of the username).
+
+### Task 9: Profile & Password Modal Restyling
+
+**Files:**
+- Modify: `vite-frontend/src/pages/profile.tsx`
+- Modify: `vite-frontend/src/pages/change-password.tsx`
+
+- [ ] **Step 1: Apply Profile Card Structure**
+  Create a split view on desktop using flex: Left side (Avatar + User Info + Admin Shortcuts), Right side (Password Form).
+- [ ] **Step 2: Restyle Auth Inputs**
+  Ensure all password inputs use `bg-white/50 backdrop-blur-md border border-white/60` and the update button has heavy shadow-glow.

docs/superpowers/specs/2026-04-01-floating-save-button-design.md

@@ -0,0 +1,162 @@
+# Floating Save Button Design
+
+**Date:** 2026-04-01
+**Issue:** https://github.com/Sagit-chu/flvx/issues/266
+**Status:** Approved
+
+## Overview
+
+Add a Floating Action Button (FAB) to the config page (`vite-frontend/src/pages/config.tsx`) that appears when configuration changes are detected, allowing users to save without scrolling to the top.
+
+## Requirements
+
+From Issue #266:
+
+1. **Default hidden**: FAB not visible when no config changes
+2. **Show on change**: Auto-display when `hasChanges` becomes true
+3. **Fixed position**: Suspended at bottom-right corner, does not scroll with page
+4. **Mobile compatible**: Same behavior on desktop and mobile devices
+
+## Design Decisions
+
+### 1. Implementation Approach
+
+**Inline FAB in config.tsx** (not a reusable component)
+
+- Rationale: Current need is limited to config page only
+- State management (`hasChanges`, `saving`) already exists in the page
+- framer-motion patterns already established in project
+- Avoids over-abstraction (YAGNI)
+
+### 2. UI Structure
+
+Position: `fixed bottom-6 right-6` (24px from viewport edges)
+
+Visual layout:
+```
+┌──────────────────────────────────────┐
+│  [页面内容，可滚动]                    │
+│                                      │
+│                                [●]   │ ← FAB (fixed position)
+└──────────────────────────────────────┘
+```
+
+### 3. Button Appearance
+
+- Shape: Circular (`w-12 h-12 rounded-full`)
+- Color: Primary (matches existing save button)
+- Icon: SaveIcon (already defined in config.tsx)
+- Shadow: `shadow-lg` for visual hierarchy
+- Style: Icon-only (no text label)
+
+### 4. Animation
+
+Using framer-motion with `AnimatePresence`:
+
+| Phase | Properties |
+|-------|------------|
+| `initial` | `{ y: 100, opacity: 0 }` - starts below viewport |
+| `animate` | `{ y: 0, opacity: 1 }` - slides up to position |
+| `exit` | `{ y: 100, opacity: 0 }` - slides back down on hide |
+
+Transition config:
+```typescript
+transition={{ type: "spring", damping: 20, stiffness: 300 }}
+```
+
+Spring parameters produce Material Design-like feel: smooth entrance, slight bounce settle.
+
+### 5. Interaction Details
+
+- **Click**: Calls existing `handleSave()` function
+- **Loading state**: Button shows Spinner when `saving === true`
+- **Hover**: Inherits Button component's primary color hover behavior
+- **z-index**: `z-50` (above page content, below modals)
+- **Prevent duplicate click**: Button disabled when `saving === true`
+
+## Technical Implementation
+
+### Code Location
+
+File: `vite-frontend/src/pages/config.tsx`
+
+### Required Imports
+
+```typescript
+import { AnimatePresence, motion } from "framer-motion";
+```
+
+### FAB Component Structure
+
+```tsx
+<AnimatePresence>
+  {hasChanges && (
+    <motion.div
+      initial={{ y: 100, opacity: 0 }}
+      animate={{ y: 0, opacity: 1 }}
+      exit={{ y: 100, opacity: 0 }}
+      transition={{ type: "spring", damping: 20, stiffness: 300 }}
+      className="fixed bottom-6 right-6 z-50"
+    >
+      <Button
+        isIconOnly
+        color="primary"
+        size="lg"
+        className="w-12 h-12 rounded-full shadow-lg"
+        isLoading={saving}
+        onPress={handleSave}
+      >
+        {!saving && <SaveIcon className="w-5 h-5" />}
+      </Button>
+    </motion.div>
+  )}
+</AnimatePresence>
+```
+
+### Placement
+
+Insert FAB at the end of the component, before the closing `</div>` (after all Cards and Modals).
+
+### Dependencies
+
+- framer-motion: Already installed (v11.18.2)
+- Button: Already imported from `@/shadcn-bridge/heroui/button`
+- SaveIcon: Already defined in config.tsx
+
+## Behavior Matrix
+
+| State | FAB Visibility | Button Enabled |
+|-------|----------------|----------------|
+| `hasChanges = false` | Hidden (not rendered) | N/A |
+| `hasChanges = true, saving = false` | Visible, animating in | Yes |
+| `hasChanges = true, saving = true` | Visible | No (loading) |
+| Save success | Hidden (animating out) | N/A |
+
+## Responsive Behavior
+
+No special handling needed. `fixed bottom-6 right-6` works identically on:
+- Desktop browsers
+- Mobile browsers
+- H5/WebView mode
+
+The FAB maintains consistent 24px margin from viewport edges regardless of screen size.
+
+## Edge Cases
+
+1. **Multiple rapid toggles**: AnimatePresence handles gracefully - exit animation completes before new enter animation
+2. **Page unload with unsaved changes**: Not addressed in this design (separate concern)
+3. **FAB covers existing warning banner**: z-50 places FAB above the warning banner at line 1004-1013
+
+## Testing Checklist
+
+After implementation, verify:
+
+- [ ] FAB appears when any config field is modified
+- [ ] FAB slides up from bottom on appearance
+- [ ] FAB slides down to bottom on disappearance
+- [ ] FAB fixed position during page scroll
+- [ ] FAB triggers save on click
+- [ ] FAB shows spinner during save
+- [ ] FAB disappears after successful save
+- [ ] FAB works on mobile viewport
+- [ ] FAB does not interfere with Modal dialogs

docs/superpowers/specs/2026-04-01-github-proxy-config-design.md

@@ -0,0 +1,274 @@
+# GitHub 加速地址自定义配置设计
+
+**日期**: 2026-04-01
+**状态**: 待审核
+**作者**: AI Assistant
+
+## 概述
+
+允许用户在面板设置中自定义 GitHub 加速地址，支持开启/关闭加速功能。配置后，面板更新节点、生成安装命令以及安装脚本都使用配置的加速地址。
+
+## 背景
+
+当前 `gcode.hostcentral.cc` 硬编码在多个位置：
+- `go-backend/internal/http/handler/upgrade.go` - 节点升级下载 URL
+- `go-backend/internal/http/handler/mutations.go` - 节点安装命令生成
+- `install.sh` - 节点安装脚本
+- `panel_install.sh` - 面板安装脚本
+
+用户无法自定义加速地址或关闭加速功能。
+
+## 目标
+
+1. 面板设置中支持配置加速开关和加速地址
+2. 配置影响全部下载场景（面板端 + 安装脚本）
+3. 安装脚本支持交互式询问加速配置
+4. 面板生成的安装命令自动嵌入加速配置
+
+## 影响范围
+
+### 后端
+- `go-backend/internal/http/handler/upgrade.go`
+- `go-backend/internal/http/handler/mutations.go`
+
+### 前端
+- `vite-frontend/src/pages/config.tsx`
+- `vite-frontend/src/config/site.ts`（缓存配置键）
+
+### 安装脚本
+- `install.sh`
+- `panel_install.sh`
+
+## 详细设计
+
+### 1. 数据存储
+
+使用现有 `vite_config` 表存储两个配置项：
+
+| name | value | 说明 |
+|------|-------|------|
+| `github_proxy_enabled` | `"true"` / `"false"` | 是否开启加速，默认 `"true"` |
+| `github_proxy_url` | URL 字符串 | 加速地址，默认 `"https://gcode.hostcentral.cc"` |
+
+### 2. 后端 Handler 修改
+
+#### upgrade.go
+
+移除硬编码常量，新增辅助函数：
+
+```go
+// getGithubProxyConfig 获取 GitHub 加速配置
+// 返回: (是否开启, 加速地址)
+func (h *Handler) getGithubProxyConfig() (enabled bool, proxyURL string) {
+    enabled = true  // 默认开启
+    proxyURL = "https://gcode.hostcentral.cc"  // 默认地址
+    
+    if h == nil || h.repo == nil {
+        return
+    }
+    
+    // 读取开启状态
+    if enabledCfg, err := h.repo.GetConfigByName("github_proxy_enabled"); err == nil && enabledCfg != nil {
+        enabled = enabledCfg.Value != "false"
+    }
+    
+    // 读取加速地址
+    if urlCfg, err := h.repo.GetConfigByName("github_proxy_url"); err == nil && urlCfg != nil && urlCfg.Value != "" {
+        proxyURL = strings.TrimSpace(urlCfg.Value)
+        // 确保 URL 格式正确
+        if !strings.HasPrefix(proxyURL, "http://") && !strings.HasPrefix(proxyURL, "https://") {
+            proxyURL = "https://" + proxyURL
+        }
+        proxyURL = strings.TrimSuffix(proxyURL, "/")
+    }
+    
+    return
+}
+
+// buildDownloadURL 构建下载地址
+func (h *Handler) buildDownloadURL(version, arch string) string {
+    enabled, proxyURL := h.getGithubProxyConfig()
+    base := fmt.Sprintf("https://github.com/%s/releases/download/%s/gost-%s", githubRepo, version, arch)
+    
+    if enabled {
+        return fmt.Sprintf("%s/%s", proxyURL, base)
+    }
+    return base
+}
+```
+
+修改 `nodeUpgrade` 和 `nodeBatchUpgrade` 使用动态配置。
+
+#### mutations.go
+
+修改 `getNodeInstallCmd` 函数（约第 440-456 行）：
+
+```go
+func (h *Handler) getNodeInstallCmd(w http.ResponseWriter, r *http.Request) {
+    // ... 现有逻辑 ...
+    
+    enabled, proxyURL := h.getGithubProxyConfig()
+    
+    var cmd string
+    if enabled {
+        cmd = fmt.Sprintf(
+            "curl -L %s/https://github.com/%s/releases/download/%s/install.sh -o ./install.sh && chmod +x ./install.sh && PROXY_ENABLED=true PROXY_URL=%s VERSION=%s ./install.sh -a %s -s %s",
+            proxyURL, githubRepo, version, proxyURL, version, processServerAddress(panelAddr), secret,
+        )
+    } else {
+        cmd = fmt.Sprintf(
+            "curl -L https://github.com/%s/releases/download/%s/install.sh -o ./install.sh && chmod +x ./install.sh && PROXY_ENABLED=false VERSION=%s ./install.sh -a %s -s %s",
+            githubRepo, version, version, processServerAddress(panelAddr), secret,
+        )
+    }
+    
+    response.WriteJSON(w, response.OK(cmd))
+}
+```
+
+### 3. 前端修改
+
+#### config.tsx
+
+在 `CONFIG_ITEMS` 数组中添加配置项（约第 87-158 行之后）：
+
+```typescript
+{
+  key: "github_proxy_enabled",
+  label: "开启 GitHub 加速",
+  description: "用于节点更新和安装脚本下载，解决部分地区 GitHub 访问受限问题",
+  type: "switch",
+},
+{
+  key: "github_proxy_url",
+  label: "加速地址",
+  placeholder: "https://gcode.hostcentral.cc",
+  description: "GitHub 下载加速代理地址，开启加速后生效",
+  type: "input",
+  dependsOn: "github_proxy_enabled",
+  dependsValue: "true",
+},
+```
+
+在 `getInitialConfigs` 函数的 `configKeys` 数组中添加缓存键：
+
+```typescript
+"github_proxy_enabled",
+"github_proxy_url",
+```
+
+### 4. 安装脚本修改
+
+#### install.sh
+
+在脚本开头添加配置变量和环境变量读取：
+
+```bash
+# 镜像加速配置（可由面板传入）
+PROXY_ENABLED="${PROXY_ENABLED:-}"
+PROXY_URL="${PROXY_URL:-}"
+```
+
+修改 `maybe_proxy_url` 函数：
+
+```bash
+# 镜像加速
+maybe_proxy_url() {
+  local url="$1"
+  
+  # 如果明确关闭加速
+  if [[ "$PROXY_ENABLED" == "false" ]]; then
+    echo "$url"
+    return
+  fi
+  
+  # 默认开启加速
+  local proxy="${PROXY_URL:-gcode.hostcentral.cc}"
+  
+  # 处理 URL 格式
+  if [[ "$proxy" == https://* || "$proxy" == http://* ]]; then
+    proxy="${proxy%/}"  # 移除末尾斜杠
+  else
+    proxy="https://${proxy}"
+  fi
+  
+  echo "${proxy}/${url}"
+}
+```
+
+在 `install_flux_agent` 函数开头添加交互式询问：
+
+```bash
+install_flux_agent() {
+  echo "🚀 开始安装 flux_agent..."
+  
+  # 询问加速配置（如果未由面板传入）
+  if [[ -z "$PROXY_ENABLED" ]]; then
+    echo ""
+    read -p "是否开启 GitHub 加速? (Y/n): " proxy_choice
+    case "$proxy_choice" in
+      n|N) PROXY_ENABLED="false" ;;
+      *)   
+        PROXY_ENABLED="true"
+        read -p "加速地址 (默认 gcode.hostcentral.cc): " input_url
+        PROXY_URL="${input_url:-gcode.hostcentral.cc}"
+        ;;
+    esac
+  fi
+  
+  # ... 现有安装逻辑 ...
+}
+```
+
+#### panel_install.sh
+
+类似修改，在 `install_panel` 函数开头添加询问逻辑。
+
+### 5. 配置缓存
+
+#### site.ts
+
+在配置缓存键列表中添加新键（如果需要前端缓存加速配置）。
+
+## 默认行为
+
+- `github_proxy_enabled`: 默认 `"true"`（开启加速）
+- `github_proxy_url`: 默认 `"https://gcode.hostcentral.cc"`
+
+## 测试要点
+
+1. **后端 API 测试**：
+   - 未配置时使用默认值
+   - 配置后正确读取并应用
+   - 关闭加速后直连 GitHub
+
+2. **前端 UI 测试**：
+   - Switch 开关正确切换
+   - 关闭加速时隐藏地址输入框
+   - 保存配置后正确持久化
+
+3. **安装脚本测试**：
+   - 交互式询问正常工作
+   - 环境变量传入时跳过询问
+   - 加速关闭时直连 GitHub
+
+4. **集成测试**：
+   - 面板生成安装命令正确包含加速配置
+   - 节点升级下载使用配置的加速地址
+
+## 风险与缓解
+
+| 风险 | 缓解措施 |
+|------|----------|
+| 用户输入无效加速地址 | 后端验证 URL 格式，前端添加格式提示 |
+| 旧版本安装脚本不兼容 | 保持 `maybe_proxy_url` 函数签名不变，仅修改内部逻辑 |
+| 配置缺失时行为不一致 | 在 `getGithubProxyConfig` 中提供合理的默认值 |
+
+## 任务清单
+
+- [ ] 后端：upgrade.go 修改
+- [ ] 后端：mutations.go 修改
+- [ ] 前端：config.tsx 添加配置项
+- [ ] 脚本：install.sh 修改
+- [ ] 脚本：panel_install.sh 修改
+- [ ] 测试：验证功能正常

docs/superpowers/specs/2026-04-03-commercial-white-label-design.md

@@ -0,0 +1,49 @@
+# FLVX 商业版白标授权功能设计方案
+
+## 1. 目标
+通过在设置面板中引入商业版激活码（License Key），允许已授权的用户去除前端页面的 FLVX 品牌标识，并使用自己的 App Name、Logo、Favicon 和隐藏版权信息，从而实现“白标”定制。
+
+## 2. 功能范围
+*   **授权校验（服务端）**：提供一个激活码输入与验证的接口。初始版本采用**在线 Mock 验证**，后续可通过替换验证服务器地址实现真实的在线发卡与吊销逻辑。
+*   **配置存储（服务端）**：一旦授权成功，在数据库（如 `vite_config` 或现有的配置表）中记录授权状态（例如 `license_key`、`is_commercial` 等），并放开商业白标相关字段的写入权限（`app_name`, `app_logo`, `app_favicon`, `hide_footer_brand`）。
+*   **权限拦截（服务端）**：拦截未授权用户的请求，禁止他们更新相关的品牌字段。
+*   **前端 UI（客户端）**：
+    *   在配置页面（或单独的“授权/个性化” Tab）提供激活码输入框。
+    *   如果未激活：界面仅展示默认品牌配置，并提示“需要商业授权以解锁自定义品牌”。
+    *   如果已激活：展示站名、Logo、Favicon 的上传和替换表单，提供隐藏“Powered by FLVX”脚标的开关。
+
+## 3. 架构设计
+
+### 3.1 数据库/配置结构
+扩展配置系统中的以下字段：
+*   `license_key` (String)：存储用户激活的商业版密钥。
+*   `is_commercial` (String/Boolean)：标识是否为合法的商业授权状态（"true" 或 "false"）。
+*   `hide_footer_brand` (String/Boolean)：是否隐藏底部的 FLVX 信息。
+
+注意：现有的 `app_name`, `app_logo`, `app_favicon` 字段将收紧修改权限。
+
+### 3.2 服务端 API 变更
+*   **新增 API `POST /api/license/activate` (或将逻辑集成到现有配置修改接口)**：
+    *   接收 `{ "license_key": "FLVX-xxxx" }`。
+    *   **Mock 逻辑**：如果是 `FLVX-` 开头则视为合法。
+    *   合法则更新系统配置，设置 `license_key` 并将状态标为 `is_commercial: "true"`。
+*   **修改 API 权限校验（如保存系统设置的接口）**：
+    *   当接收到更新 `app_name`、`app_logo`、`app_favicon`、`hide_footer_brand` 的请求时，检查当前系统中的 `is_commercial` 状态。
+    *   如果未授权且尝试修改白标字段，返回错误（如 `403 Forbidden`）提示需要商业授权。
+
+### 3.3 前端设计
+*   **授权卡片**：在全局设置（Settings / Config）页加入「商业版授权」或「个性化」区块。
+*   **表单按需显示**：使用配置中的 `is_commercial === "true"` 来控制相关表单组件的展示：
+    *   如果未授权，白标字段（Logo、Favicon、App Name、Hide Footer）不可修改（呈 Disabled）或覆盖了一层“锁”图标。
+    *   底部 Footer 组件读取 `hide_footer_brand === "true"` 决定是否渲染 `Powered by FLVX`。
+*   **全局状态同步**：当用户激活或上传完 Logo 后，通过现有的 `syncLogo` / `syncFavicon` 等机制全局刷新外观。
+
+## 4. 安全与降级
+*   **本地缓存失效**：如果后台在线验证服务器（未来）判断该 key 被吊销，可以在后续获取 config 的接口中重置白标配置为空，强制回退到默认 FLVX 主题。
+*   **接口防绕过**：所有跟商业字段相关的变更，必须经过后端 API 的鉴权，确保纯前端绕过是无效的。
+
+## 5. 测试策略
+1.  **输入非法激活码**，提示错误，白标设置项仍被锁定。
+2.  **输入合法激活码 (`FLVX-...`)**，提示成功，白标设置项解锁。
+3.  **成功后上传 Logo 和修改站名**，刷新页面，前端应正常应用新配置且没有 FLVX 标记。
+4.  **接口测试**：在未授权状态下，尝试强行通过 API 更新 `app_logo`，接口应返回权限不足。

docs/superpowers/specs/2026-04-03-keygen-license-integration-design.md

@@ -0,0 +1,59 @@
+# FLVX 商业版 Keygen.sh 授权集成设计方案
+
+## 1. 目标
+使用 [Keygen.sh](https://keygen.sh/) 替换当前 FLVX 中基于 Mock 的商业版授权验证逻辑。通过接入 Keygen.sh，实现安全、可控的许可证分发、设备绑定（防止一码多用）、定期验证以及远程吊销功能，为 FLVX 的商业化白标功能提供生产级支持。
+
+## 2. Keygen.sh 核心概念映射
+*   **Account (账户)**：您在 Keygen 注册的商户账号。
+*   **Product (产品)**：在 Keygen 中创建一个名为 `FLVX Panel` 的产品。
+*   **Policy (策略)**：定义授权规则。例如，创建一个 `White-Label Policy`，限制每个 License 只能绑定 **1 个 Machine**（即一个 FLVX 面板实例），并可配置有效期（如按年订阅或永久有效）。
+*   **License (许可证)**：发给客户的激活码（Key），格式可自定义（如 `FLVX-XXXX-XXXX`）。
+*   **Machine (机器/设备)**：运行 FLVX 的具体服务器或面板实例。为了防止一码多开，FLVX 激活时需要向 Keygen 注册一台 Machine。
+
+## 3. 架构设计与集成流程
+
+### 3.1 唯一设备标识 (Machine Fingerprint)
+为了在 Keygen 中标识不同的 FLVX 面板，FLVX 后端需要生成并持久化一个唯一的机器指纹（Fingerprint）。
+*   **生成时机**：FLVX 首次启动或首次激活时，生成一个 UUID v4。
+*   **存储**：保存在数据库 `vite_config` 表中，键名为 `machine_fingerprint`。
+
+### 3.2 激活流程 (License Activation)
+当用户在前端输入激活码并点击“激活”时：
+1.  **FLVX 后端验证 Key**：调用 Keygen API `POST /v1/accounts/{account}/licenses/actions/validate-key`，传入 `key`。
+2.  **检查 License 状态**：如果返回 `valid: true`，说明 License 合法且未过期。
+3.  **激活 Machine (设备绑定)**：
+    *   调用 Keygen API `POST /v1/accounts/{account}/machines`。
+    *   关联刚才验证的 `licenseId`，并传入 FLVX 的 `machine_fingerprint`。
+    *   *异常处理*：如果该 License 已绑定了其他 Machine（达到 Policy 上限），Keygen 会报错，FLVX 后端需返回“该授权码已在其他设备使用”。
+4.  **持久化状态**：激活成功后，在本地数据库保存 `license_key`、`is_commercial: "true"`，以及从 Keygen 返回的额外信息（如过期时间 `license_expiry`）。
+
+### 3.3 定期心跳与验证 (Periodic Validation)
+为了防止用户激活后断网或通过修改数据库绕过，以及实现**远程吊销**：
+*   **定时任务**：FLVX 后端增加一个后台协程（如每天运行一次，或每 12 小时运行一次）。
+*   **验证逻辑**：调用 Keygen API 验证当前的 `license_key` 和 `machine_fingerprint`。
+*   **吊销/过期处理**：如果 Keygen 明确返回 License 已吊销（Suspended/Revoked/Banned）或已过期，或者当前 Machine 不再属于该 License，FLVX 后端需将 `is_commercial` 强制设为 `"false"`，并清空本地缓存，恢复官方品牌展示。
+*   **宽限期 (Grace Period)**：考虑到用户服务器可能偶尔网络不通，如果请求 Keygen 超时或失败，不应立刻吊销。可设置一个宽限期（如连续 3 天请求失败才降级）。
+
+## 4. 后端 API 改造计划 (`go-backend`)
+
+### 4.1 新增环境变量/配置
+*   `KEYGEN_ACCOUNT_ID`: 您的 Keygen 账户 ID（打包时可硬编码，或作为全局环境变量）。
+*   （可选）`KEYGEN_PRODUCT_TOKEN` 或仅使用 License Key 进行验证（取决于 Keygen 验证方式的选择，推荐直接使用 License Key 进行无状态验证）。
+
+### 4.2 改造 `/api/v1/license/activate`
+*   引入 HTTP 客户端向 `api.keygen.sh` 发起请求。
+*   实现上述提到的 Validate Key 和 Activate Machine 两步走逻辑。
+*   返回具体的错误信息给前端（例如：“授权码不存在”、“授权码已过期”、“激活设备数达上限”）。
+
+## 5. 前端改造计划 (`vite-frontend`)
+前端在目前的 UI 基础上几乎不需要大改，只需配合后端的增强：
+1.  **展示过期时间**：如果后端返回了 `license_expiry`，可以在“商业版授权”卡片中展示“授权有效期至：YYYY-MM-DD”。
+2.  **错误提示优化**：透传后端返回的 Keygen 验证错误，给予用户明确的指引。
+3.  **解绑/停用功能（可选）**：未来可增加“停用授权”按钮，调用后端接口在 Keygen 中删除 Machine 绑定，以便用户将 License 迁移到新的服务器。
+
+## 6. 实施步骤建议
+1.  在 Keygen.sh 注册账号，创建 Product 和 Policy，生成测试用的 License Key。
+2.  在 FLVX 的 `go-backend` 中新建一个 `pkg/keygen` 或 `internal/license` 包，封装 Keygen API 的调用（Validate, Activate Machine）。
+3.  修改现有的 `licenseActivate` 接口，接入真正的验证逻辑。
+4.  添加定期验证的 Cron Job。
+5.  测试激活、吊销、过期、断网等各种场景。

docs/superpowers/specs/2026-04-04-announcement-popup-design.md

@@ -0,0 +1,36 @@
+# Announcement Popup Notification Design
+
+## Overview
+This feature implements a popup notification modal for important dashboard announcements to ensure users see them immediately, addressing GitHub Issue #169.
+
+## Requirements
+1. Automatic display of a popup modal when opening the dashboard page if a new/updated announcement exists.
+2. Includes a "Don't show again" option to remember the user's choice to dismiss it.
+3. Smart triggering: Only pops up for *new* or *updated* announcements.
+4. Support Markdown formatting for the announcement content.
+5. Retain the existing permanent top banner as a fallback.
+
+## Backend Changes (Go)
+The `/api/v1/announcement/get` API currently only returns `content` and `enabled`. It must be updated to return the timestamp of the last update to enable the frontend to detect changes.
+
+1.  **Repository (`internal/store/repo/repository.go`)**: Ensure `GetAnnouncement` retrieves `UpdatedTime` (or falls back to `CreatedTime`).
+2.  **Handler (`internal/http/handler/handler.go`)**: Modify `getAnnouncement` to include an `update_time` (int64) field in its JSON response.
+
+## Frontend Changes (Vite/React/Tailwind)
+1.  **API Interface (`src/api/index.ts`)**:
+    *   Update `AnnouncementData` to include `update_time: number`.
+2.  **Storage Mechanism**:
+    *   Use browser `localStorage` to persist the user's view state. Key: `flvx_announcement_seen_time`.
+3.  **UI Component (`AnnouncementModal`)**:
+    *   Create a new modal component for the dashboard.
+    *   The modal content will render the markdown of the announcement.
+    *   It will feature two primary actions:
+        *   **"Close"**: Closes the modal temporarily for this session (does NOT update `localStorage`). It will pop up again on the next page load.
+        *   **"Don't show again"**: Closes the modal AND sets `localStorage.setItem('flvx_announcement_seen_time', announcement.update_time)`.
+4.  **Integration (`src/pages/dashboard.tsx` & `use-dashboard-data.ts`)**:
+    *   Add state to manage the modal visibility (e.g., `isAnnouncementModalOpen`).
+    *   On data load, compare the fetched `update_time` with the stored `flvx_announcement_seen_time`. If the fetched time is greater (or if no stored time exists), set `isAnnouncementModalOpen(true)`.
+
+## Error Handling and Edge Cases
+*   If `localStorage` is unavailable or throws an error (e.g., Private Browsing mode restrictions), the modal may show repeatedly. The code should safely catch `localStorage` access errors.
+*   If `update_time` is missing from an old database record, the backend should gracefully fall back to the creation time or a safe default (like 0) to ensure the logic doesn't break.

docs/superpowers/specs/2026-04-04-flvx-ios26-redesign-design.md

@@ -0,0 +1,60 @@
+# Flvx iOS 26 Liquid Glass UI Redesign Spec
+
+## 1. Overview
+This document specifies the comprehensive UI/UX redesign of the Flvx frontend using an "Apple iOS 26 Liquid Glass" design language. The goal is to elevate the visual quality of the entire application, making it modern, spatially aware, and highly legible through extensive use of blur, translucency, squircle borders, and semantic contrast.
+
+## 2. Scope
+The redesign covers 100% of the frontend routing pages and overlay components under `vite-frontend/src/pages/` and global UI modules:
+- Dashboard (`dashboard.tsx`)
+- Node Management (`node.tsx`)
+- Tunnel & Rule Configurations (`tunnel.tsx`, `forward.tsx`)
+- System Monitor (`monitor.tsx`)
+- User Management (`user.tsx`)
+- Speed Limit Management (`limit.tsx`)
+- Group Management (`group.tsx`)
+- Panel Sharing (`panel-sharing.tsx`)
+- Global Settings & Config (`config.tsx`, `settings.tsx`)
+- Profile & Change Password (`profile.tsx`, `change-password.tsx`)
+- All related Modals, Drawers, and floating UI (e.g., "Create Node", "Add Rule" forms).
+
+## 3. Design System & Tokens
+The new UI replaces traditional solid-color borders and flat surfaces with the following spatial design tokens:
+
+### 3.1. Corner Radii (Squircles)
+- **Outer Shell / Viewports**: 32px (`rounded-3xl` equivalent)
+- **Cards / Containers**: 24px (`rounded-2xl`)
+- **Buttons / Inputs**: 16px (`rounded-xl` or `rounded-full`)
+- **Badges / Tags**: 6px or fully rounded.
+
+### 3.2. Backgrounds & Blurs
+- **Global Background**: A mesh gradient blending soft pinks and blues (`#ff9a9e`, `#fecfef`, `#a1c4fd`, `#c2e9fb`).
+- **Glass Base (Primary Containers)**: `backdrop-blur-3xl` with an ultra-thin white overlay (`rgba(255, 255, 255, 0.6)` or `#ffffff99`).
+- **Glass Inner Glow (Borders)**: 1px solid `rgba(255, 255, 255, 0.8)` (`#ffffffcc`).
+- **Modals Background Overlay**: 30% black overlay (`#0000004d`).
+
+### 3.3. Semantic Colors
+- **Brand / Active / Primary / TCP**: Blue `#007aff`
+- **Healthy / Success / Online**: Green `#34c759`
+- **Warning / Wait / UDP**: Orange `#ff9500`
+- **Danger / Offline / Delete**: Red `#ff3b30`
+- **Secondary / Purple / Data**: Purple `#af52de`
+- **Text**: Primary (`#1d1d1f`), Secondary (`#86868b`).
+
+### 3.4. Elevation & Shadow
+- Soft, highly diffused drop shadows rather than sharp lines: e.g., `box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1)`.
+
+## 4. Implementation Strategy
+We will implement the redesign systematically across the React + TailwindCSS + shadcn/HeroUI stack:
+1. **CSS Variables / Tailwind Config**: Inject the new Liquid Glass design tokens (colors, extended radiuses, customized backdrop blurs, box shadows) into `tailwind.config.js` and `globals.css`.
+2. **Global App Shell**: Update the root layout (`index.tsx` or main `App` layout) to host the dynamic mesh gradient background and the new translucent sidebar.
+3. **Component Re-styling**: 
+   - Override HeroUI default card, input, and modal styles using custom `classNames`.
+   - Update `MetricCard`, `PageEmptyState`, `PageLoadingState`, and other base components to support the `glass_card` spec.
+4. **Page-by-Page Integration**: Rewrite the JSX of each page to utilize the new layout structure, ensuring all existing interactive state and API logic is seamlessly preserved.
+5. **Modal System Update**: Apply the transparent `#0000004d` overlay and 480px width glassy card style to all global dialogs.
+
+## 5. Success Criteria
+- [ ] No regression in business logic; all forms, interactions, and data rendering operate exactly as before.
+- [ ] The visual system consistently employs the `glass_bg`, `glass_card`, and corresponding squircle radiuses across 100% of the UI.
+- [ ] Modals and Overlays correctly blur the background mesh gradient.
+- [ ] All responsive layouts appropriately wrap the card components on smaller displays.

go-backend/AGENTS.md

@@ -1,5 +1,10 @@
 # GO BACKEND KNOWLEDGE BASE
 
+**Generated:** Fri Mar 20 2026
+**Commit:** f45f960
+**Branch:** main
+**Tag:** 2.1.9-beta6
+
 ## OVERVIEW
 Go-based Admin API for FLVX. Replaced legacy Spring Boot backend.
 **Stack:** Go 1.24, net/http (std lib), GORM + SQLite/PostgreSQL (glebarez/sqlite - CGO-free).

go-backend/go.mod

@@ -5,16 +5,17 @@ go 1.24.0
 toolchain go1.24.4
 
 require (
+	github.com/glebarez/sqlite v1.11.0
+	github.com/google/uuid v1.6.0
 	github.com/gorilla/websocket v1.5.3
 	github.com/jackc/pgx/v5 v5.7.3
-	modernc.org/sqlite v1.37.1
+	gorm.io/driver/postgres v1.6.0
+	gorm.io/gorm v1.31.1
 )
 
 require (
 	github.com/dustin/go-humanize v1.0.1 // indirect
 	github.com/glebarez/go-sqlite v1.21.2 // indirect
-	github.com/glebarez/sqlite v1.11.0 // indirect
-	github.com/google/uuid v1.6.0 // indirect
 	github.com/jackc/pgpassfile v1.0.0 // indirect
 	github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761 // indirect
 	github.com/jackc/puddle/v2 v2.2.2 // indirect
@@ -28,9 +29,8 @@ require (
 	golang.org/x/sync v0.17.0 // indirect
 	golang.org/x/sys v0.33.0 // indirect
 	golang.org/x/text v0.29.0 // indirect
-	gorm.io/driver/postgres v1.6.0 // indirect
-	gorm.io/gorm v1.31.1 // indirect
 	modernc.org/libc v1.65.7 // indirect
 	modernc.org/mathutil v1.7.1 // indirect
 	modernc.org/memory v1.11.0 // indirect
+	modernc.org/sqlite v1.37.1 // indirect
 )

go-backend/internal/health/checker.go

@@ -0,0 +1,402 @@
+package health
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"log"
+	"net"
+	"strings"
+	"sync"
+	"sync/atomic"
+	"time"
+
+	"go-backend/internal/monitoring"
+	"go-backend/internal/store/model"
+	"go-backend/internal/store/repo"
+	"go-backend/internal/ws"
+)
+
+type nodeCommander interface {
+	SendCommand(nodeID int64, cmdType string, data interface{}, timeout time.Duration) (ws.CommandResult, error)
+}
+
+const serviceMonitorReportInterval = 30 * time.Second // DB write interval per monitor
+
+type Checker struct {
+	repo      *repo.Repository
+	commander nodeCommander
+	lastRun   map[int64]int64
+	inFlight  map[int64]struct{}
+
+	// In-memory latest result per monitor (for real-time API reads)
+	latestResults map[int64]*model.ServiceMonitorResult
+	lastDBWrite   map[int64]int64 // last DB write timestamp per monitorID
+
+	mu       sync.RWMutex
+	cancel   context.CancelFunc
+	wg       sync.WaitGroup
+	checking int32 // atomic flag: 1 = runChecks running, 0 = idle
+}
+
+func NewChecker(repo *repo.Repository, commander nodeCommander) *Checker {
+	return &Checker{
+		repo:          repo,
+		commander:     commander,
+		lastRun:       make(map[int64]int64),
+		inFlight:      make(map[int64]struct{}),
+		latestResults: make(map[int64]*model.ServiceMonitorResult),
+		lastDBWrite:   make(map[int64]int64),
+	}
+}
+
+// GetLatestCached returns the in-memory latest results (updated every 1s).
+// Returns nil if no results are cached.
+func (c *Checker) GetLatestCached() []*model.ServiceMonitorResult {
+	c.mu.RLock()
+	defer c.mu.RUnlock()
+	results := make([]*model.ServiceMonitorResult, 0, len(c.latestResults))
+	for _, r := range c.latestResults {
+		results = append(results, r)
+	}
+	return results
+}
+
+func (c *Checker) Start(ctx context.Context) {
+	c.mu.Lock()
+	ctx, cancel := context.WithCancel(ctx)
+	c.cancel = cancel
+	c.mu.Unlock()
+
+	c.runChecks(ctx)
+
+	for {
+		limits := c.loadServiceMonitorLimits()
+		scanInterval := time.Duration(limits.CheckerScanIntervalSec) * time.Second
+		if scanInterval <= 0 {
+			scanInterval = 1 * time.Second
+		}
+
+		timer := time.NewTimer(scanInterval)
+		select {
+		case <-ctx.Done():
+			timer.Stop()
+			return
+		case <-timer.C:
+			c.runChecks(ctx)
+		}
+	}
+}
+
+func (c *Checker) Stop() {
+	c.mu.Lock()
+	if c.cancel != nil {
+		c.cancel()
+	}
+	c.mu.Unlock()
+	c.wg.Wait()
+}
+
+func (c *Checker) RunOnce(m *model.ServiceMonitor) (*model.ServiceMonitorResult, error) {
+	if c == nil {
+		return nil, errors.New("checker not initialized")
+	}
+	if m == nil {
+		return nil, errors.New("monitor is nil")
+	}
+	limits := c.loadServiceMonitorLimits()
+	return c.executeCheck(m, time.Now().UnixMilli(), limits), nil
+}
+
+func (c *Checker) runChecks(ctx context.Context) {
+	// Skip if previous round is still running (interval < timeout guard)
+	if !atomic.CompareAndSwapInt32(&c.checking, 0, 1) {
+		return
+	}
+	defer atomic.StoreInt32(&c.checking, 0)
+
+	if c == nil || c.repo == nil {
+		return
+	}
+
+	limits := c.loadServiceMonitorLimits()
+	monitors, err := c.repo.ListEnabledServiceMonitors()
+	if err != nil {
+		log.Printf("service monitor scheduler failed op=list_enabled err=%v", err)
+		return
+	}
+	if len(monitors) == 0 {
+		return
+	}
+
+	// Use persisted result timestamps to avoid restart bursts.
+	latest, err := c.repo.GetLatestServiceMonitorResults()
+	if err != nil {
+		log.Printf("service monitor scheduler failed op=get_latest_results err=%v", err)
+		latest = nil
+	}
+	persistedLast := make(map[int64]int64, len(latest))
+	for _, r := range latest {
+		if r.MonitorID <= 0 || r.Timestamp <= 0 {
+			continue
+		}
+		persistedLast[r.MonitorID] = r.Timestamp
+	}
+
+	now := time.Now().UnixMilli()
+	due := make([]model.ServiceMonitor, 0, len(monitors))
+	for _, m := range monitors {
+		select {
+		case <-ctx.Done():
+			return
+		default:
+		}
+
+		intervalSec := m.IntervalSec
+		if intervalSec <= 0 {
+			intervalSec = limits.DefaultIntervalSec
+		}
+		if intervalSec < limits.MinIntervalSec {
+			intervalSec = limits.MinIntervalSec
+		}
+		intervalMs := int64(intervalSec) * 1000
+
+		c.mu.Lock()
+		if _, ok := c.inFlight[m.ID]; ok {
+			c.mu.Unlock()
+			continue
+		}
+
+		lastSeen := persistedLast[m.ID]
+		if v := c.lastRun[m.ID]; v > lastSeen {
+			lastSeen = v
+		}
+		if lastSeen > 0 && intervalMs > 0 && now-lastSeen < intervalMs {
+			c.mu.Unlock()
+			continue
+		}
+
+		c.inFlight[m.ID] = struct{}{}
+		// Use now as a best-effort guard against overlapping scans; the final
+		// timestamp is updated again when the result is persisted.
+		c.lastRun[m.ID] = now
+		c.mu.Unlock()
+
+		due = append(due, m)
+	}
+	if len(due) == 0 {
+		return
+	}
+
+	workerLimit := limits.WorkerLimit
+	if workerLimit <= 0 {
+		workerLimit = 1
+	}
+	if workerLimit > len(due) {
+		workerLimit = len(due)
+	}
+
+	jobs := make(chan model.ServiceMonitor, len(due))
+	for _, m := range due {
+		jobs <- m
+	}
+	close(jobs)
+
+	reportIntervalMs := int64(serviceMonitorReportInterval / time.Millisecond)
+
+	for i := 0; i < workerLimit; i++ {
+		c.wg.Add(1)
+		go func() {
+			defer c.wg.Done()
+			for {
+				select {
+				case <-ctx.Done():
+					return
+				case m, ok := <-jobs:
+					if !ok {
+						return
+					}
+					ts := time.Now().UnixMilli()
+					result := c.executeCheck(&m, ts, limits)
+
+					// Always update in-memory cache for real-time reads
+					c.mu.Lock()
+					c.latestResults[m.ID] = result
+					c.lastRun[m.ID] = result.Timestamp
+					delete(c.inFlight, m.ID)
+
+					// Only write to DB every 30s per monitor
+					lastWrite := c.lastDBWrite[m.ID]
+					writeToDB := ts-lastWrite >= reportIntervalMs
+					if writeToDB {
+						c.lastDBWrite[m.ID] = ts
+					}
+					c.mu.Unlock()
+
+					if writeToDB {
+						if err := c.repo.InsertServiceMonitorResult(result); err != nil {
+							log.Printf("monitoring write failed op=service_monitor_result.insert monitor_id=%d err=%v", result.MonitorID, err)
+						}
+					}
+				}
+			}
+		}()
+	}
+}
+
+func (c *Checker) executeCheck(m *model.ServiceMonitor, timestamp int64, limits monitoring.ServiceMonitorLimits) *model.ServiceMonitorResult {
+	result := &model.ServiceMonitorResult{
+		MonitorID: m.ID,
+		NodeID:    m.NodeID,
+		Timestamp: timestamp,
+	}
+
+	timeoutSec := m.TimeoutSec
+	if timeoutSec <= 0 {
+		timeoutSec = limits.DefaultTimeoutSec
+	}
+	if timeoutSec < limits.MinTimeoutSec {
+		timeoutSec = limits.MinTimeoutSec
+	}
+	if timeoutSec > limits.MaxTimeoutSec {
+		timeoutSec = limits.MaxTimeoutSec
+	}
+
+	timeout := time.Duration(timeoutSec) * time.Second
+
+	// When nodeId is set, run checks on the specified node.
+	if m.NodeID > 0 {
+		c.checkOnNode(m, timeoutSec, timeout, result)
+		return result
+	}
+
+	switch strings.ToLower(strings.TrimSpace(m.Type)) {
+	case "tcp":
+		c.checkTCP(m.Target, timeout, result)
+	case "icmp":
+		result.Success = 0
+		result.ErrorMessage = "ICMP 监控必须指定执行节点"
+	default:
+		result.Success = 0
+		result.ErrorMessage = fmt.Sprintf("不支持的检查类型: %s", m.Type)
+	}
+
+	return result
+}
+
+func (c *Checker) loadServiceMonitorLimits() monitoring.ServiceMonitorLimits {
+	defaults := monitoring.DefaultServiceMonitorLimits()
+	if c == nil || c.repo == nil {
+		return defaults
+	}
+	cfg, err := c.repo.GetConfigsByNames([]string{
+		monitoring.ConfigServiceMonitorCheckerScanIntervalSec,
+		monitoring.ConfigServiceMonitorWorkerLimit,
+		monitoring.ConfigServiceMonitorMinIntervalSec,
+		monitoring.ConfigServiceMonitorDefaultIntervalSec,
+		monitoring.ConfigServiceMonitorMinTimeoutSec,
+		monitoring.ConfigServiceMonitorDefaultTimeoutSec,
+		monitoring.ConfigServiceMonitorMaxTimeoutSec,
+	})
+	if err != nil {
+		return defaults
+	}
+	return monitoring.ServiceMonitorLimitsFromConfigMap(cfg)
+}
+
+type serviceMonitorCheckRequest struct {
+	MonitorID  int64  `json:"monitorId"`
+	Type       string `json:"type"`
+	Target     string `json:"target"`
+	TimeoutSec int    `json:"timeoutSec"`
+}
+
+func (c *Checker) checkOnNode(m *model.ServiceMonitor, timeoutSec int, timeout time.Duration, result *model.ServiceMonitorResult) {
+	if c == nil || m == nil || result == nil {
+		return
+	}
+	if c.commander == nil {
+		result.Success = 0
+		result.ErrorMessage = "节点检查不可用"
+		return
+	}
+
+	checkType := strings.ToLower(strings.TrimSpace(m.Type))
+	if checkType != "tcp" && checkType != "icmp" {
+		result.Success = 0
+		result.ErrorMessage = fmt.Sprintf("不支持的检查类型: %s", m.Type)
+		return
+	}
+	if strings.TrimSpace(m.Target) == "" {
+		result.Success = 0
+		result.ErrorMessage = "检查目标为空"
+		return
+	}
+
+	req := serviceMonitorCheckRequest{
+		MonitorID:  m.ID,
+		Type:       checkType,
+		Target:     m.Target,
+		TimeoutSec: timeoutSec,
+	}
+
+	cmdTimeout := timeout
+	if cmdTimeout < 2*time.Second {
+		cmdTimeout = 2 * time.Second
+	}
+	cmdTimeout = cmdTimeout + 2*time.Second
+
+	cmdRes, err := c.commander.SendCommand(m.NodeID, "ServiceMonitorCheck", req, cmdTimeout)
+	if err != nil {
+		result.Success = 0
+		result.ErrorMessage = err.Error()
+		return
+	}
+	if cmdRes.Data == nil {
+		result.Success = 0
+		result.ErrorMessage = "节点返回为空"
+		return
+	}
+
+	if v, ok := cmdRes.Data["success"]; ok {
+		if b, ok := v.(bool); ok {
+			if b {
+				result.Success = 1
+			} else {
+				result.Success = 0
+			}
+		}
+	}
+	if v, ok := cmdRes.Data["latencyMs"]; ok {
+		if f, ok := v.(float64); ok {
+			result.LatencyMs = f
+		}
+	}
+	if v, ok := cmdRes.Data["statusCode"]; ok {
+		if f, ok := v.(float64); ok {
+			result.StatusCode = int(f)
+		}
+	}
+	if v, ok := cmdRes.Data["errorMessage"]; ok {
+		if s, ok := v.(string); ok {
+			result.ErrorMessage = s
+		}
+	}
+}
+
+func (c *Checker) checkTCP(target string, timeout time.Duration, result *model.ServiceMonitorResult) {
+	start := time.Now()
+
+	conn, err := net.DialTimeout("tcp", target, timeout)
+	latency := time.Since(start)
+
+	result.LatencyMs = float64(latency.Milliseconds())
+
+	if err != nil {
+		result.Success = 0
+		result.ErrorMessage = err.Error()
+		return
+	}
+	_ = conn.Close()
+	result.Success = 1
+}

go-backend/internal/health/checker_test.go

@@ -0,0 +1,477 @@
+package health
+
+import (
+	"context"
+	"net"
+	"testing"
+	"time"
+
+	"go-backend/internal/monitoring"
+	"go-backend/internal/store/model"
+	"go-backend/internal/store/repo"
+	"go-backend/internal/ws"
+)
+
+type fakeCommander struct {
+	lastNodeID int64
+	lastType   string
+	lastData   interface{}
+	res        ws.CommandResult
+	err        error
+}
+
+type delayedCommander struct {
+	delayByMonitorID map[int64]time.Duration
+}
+
+func (d *delayedCommander) SendCommand(nodeID int64, cmdType string, data interface{}, _ time.Duration) (ws.CommandResult, error) {
+	_ = nodeID
+	_ = cmdType
+	if req, ok := data.(serviceMonitorCheckRequest); ok {
+		if delay := d.delayByMonitorID[req.MonitorID]; delay > 0 {
+			time.Sleep(delay)
+		}
+	}
+	return ws.CommandResult{
+		Success: true,
+		Data: map[string]interface{}{
+			"success":   true,
+			"latencyMs": float64(1),
+		},
+	}, nil
+}
+
+func (f *fakeCommander) SendCommand(nodeID int64, cmdType string, data interface{}, _ time.Duration) (ws.CommandResult, error) {
+	f.lastNodeID = nodeID
+	f.lastType = cmdType
+	f.lastData = data
+	return f.res, f.err
+}
+
+func TestTCPHealthCheckViaMonitor(t *testing.T) {
+	listener, err := net.Listen("tcp", "127.0.0.1:0")
+	if err != nil {
+		t.Fatalf("listen: %v", err)
+	}
+	defer listener.Close()
+	addr := listener.Addr().String()
+
+	go func() {
+		for {
+			conn, err := listener.Accept()
+			if err != nil {
+				return
+			}
+			conn.Close()
+		}
+	}()
+
+	t.Run("successful tcp check", func(t *testing.T) {
+		checker := NewChecker(nil, nil)
+		limits := checker.loadServiceMonitorLimits()
+		now := time.Now().UnixMilli()
+		monitor := &model.ServiceMonitor{
+			Type:       "tcp",
+			Target:     addr,
+			TimeoutSec: 5,
+		}
+		result := checker.executeCheck(monitor, now, limits)
+		if result.Success != 1 {
+			t.Fatalf("expected success, got error: %s", result.ErrorMessage)
+		}
+		if result.LatencyMs < 0 {
+			t.Fatalf("expected non-negative latency, got %f", result.LatencyMs)
+		}
+	})
+
+	t.Run("failed tcp check - connection refused", func(t *testing.T) {
+		checker := NewChecker(nil, nil)
+		limits := checker.loadServiceMonitorLimits()
+		now := time.Now().UnixMilli()
+		monitor := &model.ServiceMonitor{
+			Type:       "tcp",
+			Target:     "127.0.0.1:1",
+			TimeoutSec: 1,
+		}
+		result := checker.executeCheck(monitor, now, limits)
+		if result.Success == 1 {
+			t.Fatalf("expected failure for connection refused")
+		}
+		if result.ErrorMessage == "" {
+			t.Fatalf("expected error message")
+		}
+	})
+}
+
+func TestCheckerRunChecks(t *testing.T) {
+	r, err := repo.Open(":memory:")
+	if err != nil {
+		t.Fatalf("open repo: %v", err)
+	}
+	defer r.Close()
+
+	listener, err := net.Listen("tcp", "127.0.0.1:0")
+	if err != nil {
+		t.Fatalf("listen: %v", err)
+	}
+	defer listener.Close()
+	tcpAddr := listener.Addr().String()
+
+	go func() {
+		for {
+			conn, err := listener.Accept()
+			if err != nil {
+				return
+			}
+			conn.Close()
+		}
+	}()
+
+	now := time.Now().UnixMilli()
+
+	monitors := []*model.ServiceMonitor{
+		{
+			Name:        "TCP Monitor",
+			Type:        "tcp",
+			Target:      tcpAddr,
+			IntervalSec: 60,
+			TimeoutSec:  5,
+			NodeID:      0,
+			Enabled:     1,
+			CreatedTime: now,
+			UpdatedTime: now,
+		},
+		{
+			Name:        "TCP Monitor 2",
+			Type:        "tcp",
+			Target:      tcpAddr,
+			IntervalSec: 60,
+			TimeoutSec:  5,
+			NodeID:      0,
+			Enabled:     1,
+			CreatedTime: now,
+			UpdatedTime: now,
+		},
+		{
+			Name:        "Disabled Monitor",
+			Type:        "tcp",
+			Target:      "127.0.0.1:1",
+			IntervalSec: 60,
+			TimeoutSec:  5,
+			NodeID:      0,
+			Enabled:     0,
+			CreatedTime: now,
+			UpdatedTime: now,
+		},
+	}
+
+	for _, m := range monitors {
+		if err := r.CreateServiceMonitor(m); err != nil {
+			t.Fatalf("create monitor: %v", err)
+		}
+	}
+
+	monitors[2].Enabled = 0
+	if err := r.UpdateServiceMonitor(monitors[2]); err != nil {
+		t.Fatalf("update disabled monitor: %v", err)
+	}
+
+	enabledMonitors, err := r.ListEnabledServiceMonitors()
+	if err != nil {
+		t.Fatalf("list enabled monitors: %v", err)
+	}
+	if len(enabledMonitors) != 2 {
+		t.Fatalf("expected 2 enabled monitors, got %d", len(enabledMonitors))
+	}
+
+	checker := NewChecker(r, nil)
+
+	ctx, cancel := context.WithTimeout(context.Background(), 2*time.Second)
+	defer cancel()
+
+	go checker.Start(ctx)
+	time.Sleep(500 * time.Millisecond)
+
+	results, err := r.GetServiceMonitorResults(monitors[0].ID, 10)
+	if err != nil {
+		t.Fatalf("get tcp results: %v", err)
+	}
+	if len(results) == 0 {
+		t.Fatalf("expected at least one result for tcp monitor")
+	}
+	for _, res := range results {
+		if res.Success != 1 {
+			t.Fatalf("expected success for tcp monitor, got failure: %s", res.ErrorMessage)
+		}
+	}
+
+	results2, err := r.GetServiceMonitorResults(monitors[1].ID, 10)
+	if err != nil {
+		t.Fatalf("get tcp results 2: %v", err)
+	}
+	if len(results2) == 0 {
+		t.Fatalf("expected at least one result for tcp monitor 2")
+	}
+	for _, res := range results2 {
+		if res.Success != 1 {
+			t.Fatalf("expected success for tcp monitor 2, got failure: %s", res.ErrorMessage)
+		}
+	}
+
+	disabledResults, err := r.GetServiceMonitorResults(monitors[2].ID, 10)
+	if err != nil {
+		t.Fatalf("get disabled results: %v", err)
+	}
+	if len(disabledResults) != 0 {
+		t.Fatalf("expected no results for disabled monitor, got %d", len(disabledResults))
+	}
+}
+
+func TestCheckerUnsupportedType(t *testing.T) {
+	checker := NewChecker(nil, nil)
+	limits := checker.loadServiceMonitorLimits()
+	now := time.Now().UnixMilli()
+	monitor := &model.ServiceMonitor{
+		Type:       "http",
+		Target:     "https://example.com",
+		TimeoutSec: 5,
+	}
+	result := checker.executeCheck(monitor, now, limits)
+	if result.Success == 1 {
+		t.Fatalf("expected failure for unsupported type")
+	}
+	if result.ErrorMessage == "" {
+		t.Fatalf("expected error message for unsupported type")
+	}
+}
+
+func TestCheckerDefaultTimeout(t *testing.T) {
+	listener, err := net.Listen("tcp", "127.0.0.1:0")
+	if err != nil {
+		t.Fatalf("listen: %v", err)
+	}
+	defer listener.Close()
+	addr := listener.Addr().String()
+
+	go func() {
+		for {
+			conn, err := listener.Accept()
+			if err != nil {
+				return
+			}
+			conn.Close()
+		}
+	}()
+
+	checker := NewChecker(nil, nil)
+	limits := checker.loadServiceMonitorLimits()
+	now := time.Now().UnixMilli()
+	monitor := &model.ServiceMonitor{
+		Type:       "tcp",
+		Target:     addr,
+		TimeoutSec: 0,
+	}
+	result := checker.executeCheck(monitor, now, limits)
+	if result.Success != 1 {
+		t.Fatalf("expected success with default timeout, got error: %s", result.ErrorMessage)
+	}
+}
+
+func TestCheckerStop(t *testing.T) {
+	r, err := repo.Open(":memory:")
+	if err != nil {
+		t.Fatalf("open repo: %v", err)
+	}
+	defer r.Close()
+
+	listener, err := net.Listen("tcp", "127.0.0.1:0")
+	if err != nil {
+		t.Fatalf("listen: %v", err)
+	}
+	defer listener.Close()
+
+	go func() {
+		for {
+			conn, err := listener.Accept()
+			if err != nil {
+				return
+			}
+			conn.Close()
+		}
+	}()
+
+	now := time.Now().UnixMilli()
+	monitor := &model.ServiceMonitor{
+		Name:        "Test Monitor",
+		Type:        "tcp",
+		Target:      listener.Addr().String(),
+		IntervalSec: 60,
+		TimeoutSec:  5,
+		NodeID:      0,
+		Enabled:     1,
+		CreatedTime: now,
+		UpdatedTime: now,
+	}
+	if err := r.CreateServiceMonitor(monitor); err != nil {
+		t.Fatalf("create monitor: %v", err)
+	}
+
+	checker := NewChecker(r, nil)
+
+	ctx := context.Background()
+	go checker.Start(ctx)
+
+	time.Sleep(100 * time.Millisecond)
+	checker.Stop()
+
+	results, err := r.GetServiceMonitorResults(monitor.ID, 10)
+	if err != nil {
+		t.Fatalf("get results: %v", err)
+	}
+	if len(results) == 0 {
+		t.Fatalf("expected at least one result before stop")
+	}
+}
+
+func TestCheckerRunsOnNodeWhenNodeIDSet(t *testing.T) {
+	fake := &fakeCommander{
+		res: ws.CommandResult{
+			Success: true,
+			Data: map[string]interface{}{
+				"success":      false,
+				"latencyMs":    float64(12),
+				"errorMessage": "unreachable",
+			},
+		},
+	}
+	checker := NewChecker(nil, fake)
+	limits := checker.loadServiceMonitorLimits()
+	now := time.Now().UnixMilli()
+	monitor := &model.ServiceMonitor{
+		ID:         99,
+		Type:       "icmp",
+		Target:     "8.8.8.8",
+		TimeoutSec: 2,
+		NodeID:     123,
+	}
+	res := checker.executeCheck(monitor, now, limits)
+	if fake.lastNodeID != 123 {
+		t.Fatalf("expected command to be sent to node 123, got %d", fake.lastNodeID)
+	}
+	if fake.lastType != "ServiceMonitorCheck" {
+		t.Fatalf("expected ServiceMonitorCheck command, got %s", fake.lastType)
+	}
+	if res.Success != 0 {
+		t.Fatalf("expected failed result from node check")
+	}
+	if res.ErrorMessage != "unreachable" {
+		t.Fatalf("expected errorMessage unreachable, got %q", res.ErrorMessage)
+	}
+}
+
+func TestCheckerDoesNotBurstOnRestartWhenRecentResultsExist(t *testing.T) {
+	r, err := repo.Open(":memory:")
+	if err != nil {
+		t.Fatalf("open repo: %v", err)
+	}
+	defer r.Close()
+
+	now := time.Now().UnixMilli()
+	monitor := &model.ServiceMonitor{
+		Name:        "recent-monitor",
+		Type:        "tcp",
+		Target:      "127.0.0.1:1",
+		IntervalSec: 60,
+		TimeoutSec:  1,
+		NodeID:      0,
+		Enabled:     1,
+		CreatedTime: now,
+		UpdatedTime: now,
+	}
+	if err := r.CreateServiceMonitor(monitor); err != nil {
+		t.Fatalf("create monitor: %v", err)
+	}
+	if err := r.InsertServiceMonitorResult(&model.ServiceMonitorResult{
+		MonitorID: monitor.ID,
+		NodeID:    0,
+		Timestamp: now - 10_000,
+		Success:   1,
+	}); err != nil {
+		t.Fatalf("seed recent result: %v", err)
+	}
+
+	checker := NewChecker(r, nil)
+	ctx, cancel := context.WithCancel(context.Background())
+	go checker.Start(ctx)
+	// Give the initial scan a chance to run.
+	time.Sleep(200 * time.Millisecond)
+	cancel()
+	checker.Stop()
+
+	results, err := r.GetServiceMonitorResults(monitor.ID, 10)
+	if err != nil {
+		t.Fatalf("get results: %v", err)
+	}
+	if len(results) != 1 {
+		t.Fatalf("expected no immediate rerun (1 result), got %d", len(results))
+	}
+}
+
+func TestCheckerConcurrencyPreventsSlowMonitorBlockingOthers(t *testing.T) {
+	r, err := repo.Open(":memory:")
+	if err != nil {
+		t.Fatalf("open repo: %v", err)
+	}
+	defer r.Close()
+
+	now := time.Now().UnixMilli()
+	// Force worker limit to at least 2 for this test.
+	_ = r.UpsertConfig(monitoring.ConfigServiceMonitorWorkerLimit, "2", now)
+
+	slow := &model.ServiceMonitor{
+		Name:        "slow",
+		Type:        "icmp",
+		Target:      "8.8.8.8",
+		IntervalSec: 60,
+		TimeoutSec:  1,
+		NodeID:      123,
+		Enabled:     1,
+		CreatedTime: now,
+		UpdatedTime: now,
+	}
+	if err := r.CreateServiceMonitor(slow); err != nil {
+		t.Fatalf("create slow monitor: %v", err)
+	}
+	fast := &model.ServiceMonitor{
+		Name:        "fast",
+		Type:        "icmp",
+		Target:      "1.1.1.1",
+		IntervalSec: 60,
+		TimeoutSec:  1,
+		NodeID:      123,
+		Enabled:     1,
+		CreatedTime: now,
+		UpdatedTime: now,
+	}
+	if err := r.CreateServiceMonitor(fast); err != nil {
+		t.Fatalf("create fast monitor: %v", err)
+	}
+
+	cmd := &delayedCommander{delayByMonitorID: map[int64]time.Duration{slow.ID: 800 * time.Millisecond}}
+	checker := NewChecker(r, cmd)
+	ctx, cancel := context.WithCancel(context.Background())
+	go checker.Start(ctx)
+
+	// Fast monitor should complete even while slow one is still running.
+	time.Sleep(250 * time.Millisecond)
+	results, err := r.GetServiceMonitorResults(fast.ID, 10)
+	if err != nil {
+		t.Fatalf("get fast results: %v", err)
+	}
+	if len(results) == 0 {
+		t.Fatalf("expected fast monitor to have results without waiting for slow")
+	}
+
+	cancel()
+	checker.Stop()
+}

go-backend/internal/http/handler/AGENTS.md

@@ -1,6 +1,9 @@
 # BACKEND HTTP HANDLER KNOWLEDGE BASE
 
-**Generated:** Thu Feb 26 2026
+**Generated:** Fri Mar 20 2026
+**Commit:** f45f960
+**Branch:** main
+**Tag:** 2.1.9-beta6
 
 ## OVERVIEW
 HTTP request handlers for FLVX Admin API. Core business logic layer.

go-backend/internal/http/handler/control_plane.go

@@ -6,6 +6,7 @@ import (
 	"fmt"
 	"net"
 	"net/http"
+	"net/url"
 	"sort"
 	"strconv"
 	"strings"
@@ -223,20 +224,32 @@ func (h *Handler) listUserTunnelIDsByUser(userID int64) ([]int64, error) {
 }
 
 func (h *Handler) syncForwardServices(forward *forwardRecord, method string, allowFallbackAdd bool) error {
+	_, err := h.syncForwardServicesWithWarnings(forward, method, allowFallbackAdd)
+	return err
+}
+
+func (h *Handler) syncForwardServicesWithWarnings(forward *forwardRecord, method string, allowFallbackAdd bool) ([]string, error) {
 	if h == nil || forward == nil {
-		return errors.New("invalid forward sync context")
+		return nil, errors.New("invalid forward sync context")
 	}
 
 	tunnel, err := h.getTunnelRecord(forward.TunnelID)
 	if err != nil {
-		return err
+		return nil, err
 	}
 	ports, err := h.listForwardPorts(forward.ID)
 	if err != nil {
-		return err
+		return nil, err
 	}
 	if len(ports) == 0 {
-		return errors.New("转发入口端口不存在")
+		return nil, errors.New("转发入口端口不存在")
+	}
+	warnings := make([]string, 0)
+
+	// Resolve user tunnel first so runtime service name can carry the real user_tunnel id.
+	userTunnelID, utLimiterID, utSpeed, err := h.resolveUserTunnelAndLimiter(forward.UserID, forward.TunnelID)
+	if err != nil {
+		return nil, err
 	}
 
 	// Determine limiter from forward's SpeedID first, fallback to UserTunnel's limiter
@@ -254,45 +267,187 @@ func (h *Handler) syncForwardServices(forward *forwardRecord, method string, all
 
 	if limiterID == nil {
 		// Fall back to UserTunnel speed limit
-		var utLimiterID *int64
-		var utSpeed *int
-		_, utLimiterID, utSpeed, err = h.resolveUserTunnelAndLimiter(forward.UserID, forward.TunnelID)
-		if err != nil {
-			return err
-		}
 		limiterID = utLimiterID
 		speed = utSpeed
 	}
 
-	serviceBase := buildForwardServiceBase(forward.ID, forward.UserID, 0)
+	serviceBase := buildForwardServiceBaseWithResolvedUserTunnel(forward.ID, forward.UserID, userTunnelID)
 	tunnelTLSProtocol, err := h.isTunnelSelectedTLSProtocol(forward.TunnelID)
 	if err != nil {
-		return err
+		return nil, err
 	}
 
 	for _, fp := range ports {
 		if limiterID != nil && speed != nil {
 			if err := h.ensureLimiterOnNode(fp.NodeID, *limiterID, *speed); err != nil {
-				return err
+				// If the limiter push fails because the node is offline, skip it with a warning
+				if isNodeOfflineOrTimeoutError(err) {
+					node, _ := h.getNodeRecord(fp.NodeID)
+					nodeName := fmt.Sprintf("%d", fp.NodeID)
+					if node != nil && strings.TrimSpace(node.Name) != "" {
+						nodeName = strings.TrimSpace(node.Name)
+					}
+					warnings = append(warnings, fmt.Sprintf("节点 %s 不在线，已跳过下发", nodeName))
+					continue
+				}
+				return nil, err
 			}
 		}
 
 		node, err := h.getNodeRecord(fp.NodeID)
 		if err != nil {
-			return err
+			return nil, err
 		}
 		services := buildForwardServiceConfigs(serviceBase, forward, tunnel, node, fp.Port, strings.TrimSpace(fp.InIP), limiterID, tunnelTLSProtocol)
 		_, err = h.sendNodeCommand(node.ID, method, services, true, false)
 		if err != nil && allowFallbackAdd && method == "UpdateService" {
+			if isNotFoundError(err) {
+				if delErr := h.deleteForwardServicesOnNode(forward, node.ID); delErr != nil && !isNotFoundError(delErr) {
+					return warnings, fmt.Errorf("节点 %s 清理旧服务失败: %w", node.Name, delErr)
+				}
+			}
 			_, err = h.sendNodeCommand(node.ID, "AddService", services, true, false)
 		}
+		if err != nil && strings.EqualFold(strings.TrimSpace(method), "UpdateService") && isAddressAlreadyInUseError(err) {
+			err = h.rebindForwardServiceOnSelfOccupiedPort(forward, node, fp.Port, services)
+		}
+		if err != nil && strings.EqualFold(strings.TrimSpace(method), "UpdateService") && isCannotAssignRequestedAddressError(err) {
+			var warning string
+			warning, err = h.fallbackForwardPortToDefaultBind(forward, tunnel, node, fp, serviceBase, limiterID, tunnelTLSProtocol)
+			if err == nil && warning != "" {
+				warnings = append(warnings, warning)
+			}
+		}
+		// When a node is offline, skip it with a warning instead of failing.
+		// This lets users modify forward rules even when some entry nodes are down.
+		if err != nil && isNodeOfflineOrTimeoutError(err) {
+			warnings = append(warnings, fmt.Sprintf("节点 %s 不在线，已跳过下发", node.Name))
+			continue
+		}
 		if err != nil {
-			return fmt.Errorf("节点 %s 下发失败: %w", node.Name, err)
+			return warnings, fmt.Errorf("节点 %s 下发失败: %w", node.Name, err)
 		}
 	}
+
+	// Keep paused forwards paused after UpdateService/AddService, since agent-side UpdateService
+	// always restarts services.
+	if forward.Status != 1 {
+		if err := h.controlForwardServices(forward, "PauseService", false); err != nil {
+			return warnings, err
+		}
+	}
+	return warnings, nil
+}
+
+func (h *Handler) fallbackForwardPortToDefaultBind(forward *forwardRecord, tunnel *tunnelRecord, node *nodeRecord, fp forwardPortRecord, serviceBase string, limiterID *int64, tunnelTLSProtocol bool) (string, error) {
+	if h == nil || forward == nil || tunnel == nil || node == nil {
+		return "", errors.New("invalid bind fallback context")
+	}
+	if fp.Port <= 0 {
+		return "", errors.New("invalid forward port")
+	}
+	explicitBindIP := strings.TrimSpace(fp.InIP)
+	if explicitBindIP == "" {
+		return "", errors.New("default bind address cannot be assigned")
+	}
+
+	if err := h.deleteForwardServicesOnNode(forward, node.ID); err != nil {
+		return "", err
+	}
+
+	time.Sleep(150 * time.Millisecond)
+	defaultServices := buildForwardServiceConfigs(serviceBase, forward, tunnel, node, fp.Port, "", limiterID, tunnelTLSProtocol)
+	if _, err := h.sendNodeCommand(node.ID, "AddService", defaultServices, true, false); err != nil {
+		return "", err
+	}
+	if err := h.repo.UpdateForwardPortBindIP(forward.ID, node.ID, fp.Port, ""); err != nil {
+		return "", err
+	}
+
+	warning := fmt.Sprintf("节点 %s 监听IP %s 不在主机网卡地址中，已自动回退为默认监听IP", strings.TrimSpace(node.Name), explicitBindIP)
+	return warning, nil
+}
+
+func (h *Handler) rebindForwardServiceOnSelfOccupiedPort(forward *forwardRecord, node *nodeRecord, port int, services []map[string]interface{}) error {
+	if h == nil || forward == nil || node == nil {
+		return errors.New("invalid self-occupy rebind context")
+	}
+	if port <= 0 {
+		return errors.New("invalid forward port")
+	}
+
+	hasOtherForward, err := h.repo.HasOtherForwardOnNodePort(node.ID, port, forward.ID)
+	if err != nil {
+		return err
+	}
+	if hasOtherForward {
+		return fmt.Errorf("端口 %d 已被其他转发占用", port)
+	}
+
+	bases, err := h.forwardServiceBaseCandidates(forward)
+	if err != nil {
+		return err
+	}
+
+	if err := h.deleteForwardServiceBasesOnNode(node.ID, bases); err != nil {
+		return err
+	}
+
+	time.Sleep(150 * time.Millisecond)
+
+	_, err = h.sendNodeCommand(node.ID, "AddService", services, true, false)
+	if err != nil {
+		return err
+	}
+
 	return nil
 }
 
+func (h *Handler) deleteForwardServicesOnNode(forward *forwardRecord, nodeID int64) error {
+	if h == nil || forward == nil {
+		return errors.New("invalid forward delete context")
+	}
+	bases, err := h.forwardServiceBaseCandidates(forward)
+	if err != nil {
+		return err
+	}
+	return h.deleteForwardServiceBasesOnNode(nodeID, bases)
+
+}
+
+func (h *Handler) forwardServiceBaseCandidates(forward *forwardRecord) ([]string, error) {
+	if h == nil || forward == nil {
+		return nil, errors.New("invalid forward service base context")
+	}
+	userTunnelID, _, _, err := h.resolveUserTunnelAndLimiter(forward.UserID, forward.TunnelID)
+	if err != nil {
+		return nil, err
+	}
+	userTunnelIDs, err := h.listUserTunnelIDs(forward.UserID, forward.TunnelID)
+	if err != nil {
+		return nil, err
+	}
+	allUserTunnelIDs, err := h.listUserTunnelIDsByUser(forward.UserID)
+	if err != nil {
+		return nil, err
+	}
+	candidateTunnelIDs := make([]int64, 0, len(userTunnelIDs)+len(allUserTunnelIDs))
+	candidateTunnelIDs = append(candidateTunnelIDs, userTunnelIDs...)
+	candidateTunnelIDs = append(candidateTunnelIDs, allUserTunnelIDs...)
+	return buildForwardServiceBaseCandidates(forward.ID, forward.UserID, userTunnelID, candidateTunnelIDs), nil
+
+}
+
+func (h *Handler) deleteForwardServiceBasesOnNode(nodeID int64, bases []string) error {
+	return deleteForwardServiceCandidates(bases, func(name string) error {
+		payload := map[string]interface{}{
+			"services": []string{name},
+		}
+		_, err := h.sendNodeCommand(nodeID, "DeleteService", payload, false, false)
+		return err
+	})
+}
+
 func (h *Handler) controlForwardServices(forward *forwardRecord, commandType string, tolerateNotFound bool) error {
 	if h == nil || forward == nil {
 		return errors.New("invalid forward control context")
@@ -321,40 +476,26 @@ func (h *Handler) controlForwardServices(forward *forwardRecord, commandType str
 	candidateTunnelIDs = append(candidateTunnelIDs, allUserTunnelIDs...)
 	bases := buildForwardServiceBaseCandidates(forward.ID, forward.UserID, userTunnelID, candidateTunnelIDs)
 	seen := map[int64]struct{}{}
+	healed := false
 	for _, fp := range ports {
 		if _, ok := seen[fp.NodeID]; ok {
 			continue
 		}
 		seen[fp.NodeID] = struct{}{}
 
-		var lastNotFoundErr error
-		nodeHandled := false
+		nodeHandled, lastNotFoundErr, err := h.controlForwardServicesOnNode(fp.NodeID, bases, commandType)
+		if err != nil {
+			return err
+		}
 
-		for _, base := range bases {
-			variants := []string{base + "_tcp", base + "_udp"}
-			if shouldTryLegacySingleService(commandType) || strings.EqualFold(strings.TrimSpace(commandType), "DeleteService") {
-				variants = append(variants, base)
+		if !nodeHandled && lastNotFoundErr != nil && !healed && shouldSelfHealForwardServiceControl(commandType) {
+			if healErr := h.syncForwardServices(forward, "UpdateService", true); healErr != nil {
+				return healErr
 			}
-
-			candidateHandled := false
-			for _, name := range variants {
-				payload := map[string]interface{}{
-					"services": []string{name},
-				}
-				_, err := h.sendNodeCommand(fp.NodeID, commandType, payload, false, false)
-				if err == nil {
-					candidateHandled = true
-					continue
-				}
-				if !isNotFoundError(err) {
-					return err
-				}
-				lastNotFoundErr = err
-			}
-
-			if candidateHandled {
-				nodeHandled = true
-				break
+			healed = true
+			nodeHandled, lastNotFoundErr, err = h.controlForwardServicesOnNode(fp.NodeID, bases, commandType)
+			if err != nil {
+				return err
 			}
 		}
 
@@ -372,6 +513,65 @@ func (h *Handler) controlForwardServices(forward *forwardRecord, commandType str
 	return nil
 }
 
+func (h *Handler) controlForwardServicesOnNode(nodeID int64, bases []string, commandType string) (bool, error, error) {
+	return controlForwardServiceCommand(bases, commandType, func(name string) error {
+		payload := map[string]interface{}{
+			"services": []string{name},
+		}
+		_, err := h.sendNodeCommand(nodeID, commandType, payload, false, false)
+		return err
+	})
+}
+
+func controlForwardServiceCommand(bases []string, commandType string, send func(name string) error) (bool, error, error) {
+	var lastNotFoundErr error
+	for _, base := range bases {
+		variants := []string{base + "_tcp", base + "_udp"}
+		if shouldTryLegacySingleService(commandType) || strings.EqualFold(strings.TrimSpace(commandType), "DeleteService") {
+			variants = append(variants, base)
+		}
+
+		candidateHandled := false
+		for _, name := range variants {
+			err := send(name)
+			if err == nil {
+				candidateHandled = true
+				continue
+			}
+			if !isNotFoundError(err) {
+				return false, lastNotFoundErr, err
+			}
+			lastNotFoundErr = err
+		}
+
+		if candidateHandled {
+			return true, nil, nil
+		}
+	}
+	return false, lastNotFoundErr, nil
+}
+
+func deleteForwardServiceCandidates(bases []string, send func(name string) error) error {
+	for _, base := range bases {
+		for _, name := range append([]string{base + "_tcp", base + "_udp", base}, []string{}...) {
+			err := send(name)
+			if err == nil {
+				continue
+			}
+			if isNotFoundError(err) {
+				continue
+			}
+			return err
+		}
+	}
+	return nil
+}
+
+func shouldSelfHealForwardServiceControl(commandType string) bool {
+	cmd := strings.ToLower(strings.TrimSpace(commandType))
+	return cmd == "pauseservice" || cmd == "resumeservice"
+}
+
 func (h *Handler) applyNodeProtocolChange(nodeID int64, httpVal, tlsVal, socksVal int) error {
 	_, err := h.sendNodeCommand(nodeID, "SetProtocol", map[string]interface{}{
 		"http":  httpVal,
@@ -1246,6 +1446,13 @@ func buildForwardServiceBase(forwardID, userID, userTunnelID int64) string {
 	return fmt.Sprintf("%d_%d_%d", forwardID, userID, userTunnelID)
 }
 
+func buildForwardServiceBaseWithResolvedUserTunnel(forwardID, userID, resolvedUserTunnelID int64) string {
+	if resolvedUserTunnelID <= 0 {
+		return buildForwardServiceBase(forwardID, userID, 0)
+	}
+	return buildForwardServiceBase(forwardID, userID, resolvedUserTunnelID)
+}
+
 func buildForwardServiceBaseCandidates(forwardID, userID, preferredUserTunnelID int64, userTunnelIDs []int64) []string {
 	orderedIDs := make([]int64, 0, len(userTunnelIDs)+2)
 	seen := make(map[int64]struct{}, len(userTunnelIDs)+2)
@@ -1297,10 +1504,61 @@ func isAlreadyExistsMessage(message string) bool {
 	if msg == "" {
 		return false
 	}
-	if strings.Contains(msg, "address already in use") {
+	if isAddressAlreadyInUseMessage(msg) {
 		return false
 	}
-	return strings.Contains(msg, "already exists") || strings.Contains(msg, "已存在")
+	compact := compactErrorMessage(msg)
+	return strings.Contains(msg, "already exists") || strings.Contains(msg, "已存在") || strings.Contains(compact, "alreadyexists")
+}
+
+func isBindAddressInUseError(err error) bool {
+	if err == nil {
+		return false
+	}
+	msg := strings.ToLower(strings.TrimSpace(err.Error()))
+	if msg == "" {
+		return false
+	}
+	return isAddressAlreadyInUseMessage(msg) || strings.Contains(msg, "cannot assign requested address")
+}
+
+func isAddressAlreadyInUseError(err error) bool {
+	if err == nil {
+		return false
+	}
+	return isAddressAlreadyInUseMessage(strings.ToLower(strings.TrimSpace(err.Error())))
+}
+
+func isAddressAlreadyInUseMessage(msg string) bool {
+	if msg == "" {
+		return false
+	}
+	if strings.Contains(msg, "address already in use") {
+		return true
+	}
+	return strings.Contains(compactErrorMessage(msg), "addressalreadyinuse")
+}
+
+func isCannotAssignRequestedAddressError(err error) bool {
+	if err == nil {
+		return false
+	}
+	msg := strings.ToLower(strings.TrimSpace(err.Error()))
+	if msg == "" {
+		return false
+	}
+	if strings.Contains(msg, "cannot assign requested address") {
+		return true
+	}
+	return strings.Contains(compactErrorMessage(msg), "cannotassignrequestedaddress")
+}
+
+func compactErrorMessage(msg string) string {
+	msg = strings.TrimSpace(msg)
+	if msg == "" {
+		return ""
+	}
+	return strings.Join(strings.Fields(strings.ToLower(msg)), "")
 }
 
 func buildForwardServiceConfigs(baseName string, forward *forwardRecord, tunnel *tunnelRecord, node *nodeRecord, port int, bindIP string, limiterID *int64, tunnelTLSProtocol bool) []map[string]interface{} {
@@ -1319,10 +1577,11 @@ func buildForwardServiceConfigs(baseName string, forward *forwardRecord, tunnel
 		}
 		var serviceAddr string
 		if bindIP != "" {
-			if strings.Contains(bindIP, ":") {
-				serviceAddr = processServerAddress(bindIP)
+			trimmedBindIP := strings.TrimSpace(bindIP)
+			if _, _, err := net.SplitHostPort(trimmedBindIP); err == nil {
+				serviceAddr = processServerAddress(trimmedBindIP)
 			} else {
-				serviceAddr = processServerAddress(fmt.Sprintf("%s:%d", bindIP, port))
+				serviceAddr = processServerAddress(net.JoinHostPort(strings.Trim(trimmedBindIP, "[]"), strconv.Itoa(port)))
 			}
 		} else {
 			serviceAddr = processServerAddress(fmt.Sprintf("%s:%d", listenerAddr, port))
@@ -1379,13 +1638,21 @@ func buildForwarderNodes(targets []string) []map[string]interface{} {
 }
 
 func processServerAddress(serverAddr string) string {
-	serverAddr = strings.TrimSpace(serverAddr)
+	serverAddr = normalizeServerAddressInput(serverAddr)
 	if serverAddr == "" {
 		return serverAddr
 	}
 	if strings.HasPrefix(serverAddr, "[") {
 		return serverAddr
 	}
+	// If the input is a bare IPv6 host (no port), bracket it.
+	// IPv6-with-port must be provided in bracket form: [::1]:443.
+	if looksLikeIPv6(serverAddr) {
+		if ip := net.ParseIP(serverAddr); ip != nil && ip.To4() == nil {
+			return "[" + serverAddr + "]"
+		}
+	}
+
 	idx := strings.LastIndex(serverAddr, ":")
 	if idx < 0 {
 		if looksLikeIPv6(serverAddr) {
@@ -1404,6 +1671,27 @@ func processServerAddress(serverAddr string) string {
 	return serverAddr
 }
 
+func normalizeServerAddressInput(serverAddr string) string {
+	serverAddr = strings.TrimSpace(serverAddr)
+	if serverAddr == "" {
+		return serverAddr
+	}
+
+	if idx := strings.Index(serverAddr, "://"); idx > 0 {
+		if parsed, err := url.Parse(serverAddr); err == nil {
+			if host := strings.TrimSpace(parsed.Host); host != "" {
+				return host
+			}
+		}
+		serverAddr = serverAddr[idx+3:]
+	}
+
+	if idx := strings.IndexAny(serverAddr, "/?#"); idx >= 0 {
+		serverAddr = serverAddr[:idx]
+	}
+	return strings.TrimSpace(serverAddr)
+}
+
 func looksLikeIPv6(address string) bool {
 	return strings.Count(address, ":") >= 2
 }

go-backend/internal/http/handler/control_plane_test.go

@@ -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")
@@ -54,6 +71,184 @@ func TestShouldTryLegacySingleService(t *testing.T) {
 	}
 }
 
+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")
@@ -61,9 +256,123 @@ func TestIsAlreadyExistsMessage(t *testing.T) {
 	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) {
@@ -111,3 +420,125 @@ func TestBuildForwardServiceConfigs_BindIPAlreadyContainsPort(t *testing.T) {
 		}
 	}
 }
+
+func TestBuildForwardServiceConfigs_IPv6BindIP(t *testing.T) {
+	tests := []struct {
+		name     string
+		bindIP   string
+		port     int
+		wantAddr string
+	}{
+		{
+			name:     "pure ipv6 without port",
+			bindIP:   "2001:db8::1",
+			port:     22000,
+			wantAddr: "[2001:db8::1]:22000",
+		},
+		{
+			name:     "bracketed ipv6 without port",
+			bindIP:   "[2001:db8::2]",
+			port:     22001,
+			wantAddr: "[2001:db8::2]:22001",
+		},
+		{
+			name:     "bracketed ipv6 with port",
+			bindIP:   "[2001:db8::3]:8080",
+			port:     55555,
+			wantAddr: "[2001:db8::3]:8080",
+		},
+		{
+			name:     "ipv6 link-local with zone",
+			bindIP:   "fe80::1%eth0",
+			port:     22002,
+			wantAddr: "[fe80::1%eth0]:22002",
+		},
+		{
+			name:     "ipv6 localhost",
+			bindIP:   "::1",
+			port:     22003,
+			wantAddr: "[::1]:22003",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(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, tt.port, tt.bindIP, 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 != tt.wantAddr {
+					t.Fatalf("expected addr %q, got %q", tt.wantAddr, 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)
+		}
+	}
+}

go-backend/internal/http/handler/dual_stack_test.go

@@ -33,7 +33,7 @@ func TestSelectTunnelDialHost_ConnectIpPriority(t *testing.T) {
 func TestBuildTunnelChainServiceConfig_UsesConnectIPForListen(t *testing.T) {
 	node := &nodeRecord{TCPListenAddr: "[::]"}
 	chain := tunnelRuntimeNode{Protocol: "tls", Port: 21000, ConnectIP: "2001:db8::88"}
-	services := buildTunnelChainServiceConfig(99, chain, node)
+	services := buildTunnelChainServiceConfig(99, chain, node, 1)
 	if len(services) != 1 {
 		t.Fatalf("expected 1 service, got %d", len(services))
 	}
@@ -43,10 +43,23 @@ func TestBuildTunnelChainServiceConfig_UsesConnectIPForListen(t *testing.T) {
 	}
 }
 
+func TestBuildTunnelChainServiceConfig_FallsBackToNodeListenAddr(t *testing.T) {
+	node := &nodeRecord{TCPListenAddr: "10.8.0.5"}
+	chain := tunnelRuntimeNode{Protocol: "tls", Port: 21002}
+	services := buildTunnelChainServiceConfig(99, chain, node, 1)
+	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)
+	services := buildTunnelChainServiceConfig(99, chain, node, 1)
 	if len(services) != 1 {
 		t.Fatalf("expected 1 service, got %d", len(services))
 	}
@@ -56,6 +69,42 @@ func TestBuildTunnelChainServiceConfig_DefaultListenAddrWhenConnectIPEmpty(t *te
 	}
 }
 
+func TestBuildTunnelChainServiceConfig_SetsRetriesWhenMultipleCandidates(t *testing.T) {
+	node := &nodeRecord{TCPListenAddr: "[::]"}
+	chain := tunnelRuntimeNode{Protocol: "tls", Port: 21001}
+	services := buildTunnelChainServiceConfig(99, chain, node, 3)
+	if len(services) != 1 {
+		t.Fatalf("expected 1 service, got %d", len(services))
+	}
+	handler, _ := services[0]["handler"].(map[string]interface{})
+	if handler == nil {
+		t.Fatal("expected handler config")
+	}
+	retries, ok := handler["retries"].(int)
+	if !ok {
+		t.Fatal("expected retries to be set when nextHopCandidateCount > 1")
+	}
+	if retries != 2 {
+		t.Fatalf("expected retries=2 (candidates-1), got %d", retries)
+	}
+}
+
+func TestBuildTunnelChainServiceConfig_NoRetriesWhenSingleCandidate(t *testing.T) {
+	node := &nodeRecord{TCPListenAddr: "[::]"}
+	chain := tunnelRuntimeNode{Protocol: "tls", Port: 21001}
+	services := buildTunnelChainServiceConfig(99, chain, node, 1)
+	if len(services) != 1 {
+		t.Fatalf("expected 1 service, got %d", len(services))
+	}
+	handler, _ := services[0]["handler"].(map[string]interface{})
+	if handler == nil {
+		t.Fatal("expected handler config")
+	}
+	if _, hasRetries := handler["retries"]; hasRetries {
+		t.Fatal("expected no retries when nextHopCandidateCount is 1")
+	}
+}
+
 func TestNodeSupportsV6_Nil(t *testing.T) {
 	if nodeSupportsV6(nil) {
 		t.Fatal("nil node must not support v6")
@@ -296,21 +345,39 @@ func TestSelectTunnelDialHost_V6Only_PreferV4Fallback(t *testing.T) {
 	}
 }
 
-func TestSelectTunnelDialHost_Incompatible(t *testing.T) {
+func TestSelectTunnelDialHost_CrossVersion_V4ToV6(t *testing.T) {
+	// v4-only -> v6-only: 跨版本支持，应成功返回 v6 地址
 	from := v4OnlyNode("from", "10.0.0.1")
 	to := v6OnlyNode("to", "2001:db8::2")
-	_, err := selectTunnelDialHost(from, to, "", "")
-	if err == nil {
-		t.Fatal("expected error for incompatible nodes (v4-only -> v6-only)")
+	host, err := selectTunnelDialHost(from, to, "", "")
+	if err != nil {
+		t.Fatalf("unexpected error for cross-version (v4-only -> v6-only): %v", err)
+	}
+	if host != "2001:db8::2" {
+		t.Fatalf("expected v6 address for cross-version, got %q", host)
 	}
 }
 
-func TestSelectTunnelDialHost_Incompatible_Reverse(t *testing.T) {
+func TestSelectTunnelDialHost_CrossVersion_V6ToV4(t *testing.T) {
+	// v6-only -> v4-only: 跨版本支持，应成功返回 v4 地址
 	from := v6OnlyNode("from", "2001:db8::1")
 	to := v4OnlyNode("to", "10.0.0.2")
+	host, err := selectTunnelDialHost(from, to, "", "")
+	if err != nil {
+		t.Fatalf("unexpected error for cross-version (v6-only -> v4-only): %v", err)
+	}
+	if host != "10.0.0.2" {
+		t.Fatalf("expected v4 address for cross-version, got %q", host)
+	}
+}
+
+func TestSelectTunnelDialHost_TrulyIncompatible(t *testing.T) {
+	// 真正不兼容：两个节点都没有任何 IP
+	from := &nodeRecord{Name: "empty-from", ServerIPv4: "", ServerIPv6: "", ServerIP: ""}
+	to := &nodeRecord{Name: "empty-to", ServerIPv4: "", ServerIPv6: "", ServerIP: ""}
 	_, err := selectTunnelDialHost(from, to, "", "")
 	if err == nil {
-		t.Fatal("expected error for incompatible nodes (v6-only -> v4-only)")
+		t.Fatal("expected error for nodes with no IP addresses")
 	}
 }
 

go-backend/internal/http/handler/federation.go

@@ -141,6 +141,32 @@ type remoteUsageNodeItem struct {
 	SyncError        string                   `json:"syncError,omitempty"`
 }
 
+func buildFederationServiceConfig(serviceName, addr, protocol, role, chainName string, targetCount int, interfaceName string) map[string]interface{} {
+	service := map[string]interface{}{
+		"name": serviceName,
+		"addr": addr,
+		"handler": map[string]interface{}{
+			"type": "relay",
+		},
+		"listener": map[string]interface{}{
+			"type": protocol,
+		},
+	}
+	if isTLSTunnelProtocol(protocol) {
+		service["handler"].(map[string]interface{})["metadata"] = map[string]interface{}{"nodelay": true}
+	}
+	if role == "middle" {
+		service["handler"].(map[string]interface{})["chain"] = chainName
+		if targetCount > 1 {
+			service["handler"].(map[string]interface{})["retries"] = targetCount - 1
+		}
+	}
+	if role == "exit" && strings.TrimSpace(interfaceName) != "" {
+		service["metadata"] = map[string]interface{}{"interface": interfaceName}
+	}
+	return service
+}
+
 func (h *Handler) federationShareList(w http.ResponseWriter, r *http.Request) {
 	if r.Method != http.MethodPost {
 		response.WriteJSON(w, response.ErrDefault("Invalid method"))
@@ -1096,25 +1122,16 @@ func (h *Handler) federationRuntimeApplyRole(w http.ResponseWriter, r *http.Requ
 		}
 	}
 
-	service := map[string]interface{}{
-		"name": serviceName,
-		"addr": fmt.Sprintf("%s:%d", node.TCPListenAddr, runtime.Port),
-		"handler": map[string]interface{}{
-			"type": "relay",
-		},
-		"listener": map[string]interface{}{
-			"type": protocol,
-		},
-	}
-	if isTLSTunnelProtocol(protocol) {
-		service["handler"].(map[string]interface{})["metadata"] = map[string]interface{}{"nodelay": true}
-	}
-	if req.Role == "middle" {
-		service["handler"].(map[string]interface{})["chain"] = chainName
-	}
-	if req.Role == "exit" && strings.TrimSpace(node.InterfaceName) != "" {
-		service["metadata"] = map[string]interface{}{"interface": node.InterfaceName}
-	}
+	targetCount := len(req.Targets)
+	service := buildFederationServiceConfig(
+		serviceName,
+		fmt.Sprintf("%s:%d", node.TCPListenAddr, runtime.Port),
+		protocol,
+		req.Role,
+		chainName,
+		targetCount,
+		node.InterfaceName,
+	)
 	if _, err := h.sendNodeCommand(share.NodeID, "AddService", []map[string]interface{}{service}, true, false); err != nil {
 		if req.Role == "middle" {
 			_, _ = h.sendNodeCommand(share.NodeID, "DeleteChains", map[string]interface{}{"chain": chainName}, false, true)

go-backend/internal/http/handler/federation_runtime_test.go

@@ -227,6 +227,60 @@ func TestPrepareTunnelCreateStateAllowsOfflineRemoteMiddleNode(t *testing.T) {
 	}
 }
 
+func TestBuildFederationServiceConfig_MiddleRoleWithMultipleTargets_SetsRetries(t *testing.T) {
+	service := buildFederationServiceConfig("svc-middle", ":40000", "tls", "middle", "chain-next", 3, "")
+	handler := service["handler"].(map[string]interface{})
+	if handler["chain"] != "chain-next" {
+		t.Fatalf("expected chain 'chain-next', got %v", handler["chain"])
+	}
+	if handler["retries"] != 2 {
+		t.Fatalf("expected retries 2 for 3 targets, got %v", handler["retries"])
+	}
+}
+
+func TestBuildFederationServiceConfig_MiddleRoleWithSingleTarget_NoRetries(t *testing.T) {
+	service := buildFederationServiceConfig("svc-middle", ":40000", "tls", "middle", "chain-next", 1, "")
+	handler := service["handler"].(map[string]interface{})
+	if handler["chain"] != "chain-next" {
+		t.Fatalf("expected chain 'chain-next', got %v", handler["chain"])
+	}
+	if _, hasRetries := handler["retries"]; hasRetries {
+		t.Fatalf("expected no retries for single target, got %v", handler["retries"])
+	}
+}
+
+func TestBuildFederationServiceConfig_ExitRole_NoRetriesRegardlessOfTargets(t *testing.T) {
+	service := buildFederationServiceConfig("svc-exit", ":40000", "tls", "exit", "", 3, "eth0")
+	handler := service["handler"].(map[string]interface{})
+	if _, hasChain := handler["chain"]; hasChain {
+		t.Fatalf("expected no chain for exit role, got %v", handler["chain"])
+	}
+	if _, hasRetries := handler["retries"]; hasRetries {
+		t.Fatalf("expected no retries for exit role, got %v", handler["retries"])
+	}
+	metadata := service["metadata"].(map[string]interface{})
+	if metadata["interface"] != "eth0" {
+		t.Fatalf("expected interface 'eth0', got %v", metadata["interface"])
+	}
+}
+
+func TestBuildFederationServiceConfig_TLSTunnelProtocol_SetsNodelay(t *testing.T) {
+	service := buildFederationServiceConfig("svc-tls", ":40000", "tls", "middle", "chain-next", 2, "")
+	handler := service["handler"].(map[string]interface{})
+	meta := handler["metadata"].(map[string]interface{})
+	if meta["nodelay"] != true {
+		t.Fatalf("expected nodelay=true for TLS protocol, got %v", meta["nodelay"])
+	}
+}
+
+func TestBuildFederationServiceConfig_NonTLSProtocol_NoNodelay(t *testing.T) {
+	service := buildFederationServiceConfig("svc-tcp", ":40000", "tcp", "middle", "chain-next", 2, "")
+	handler := service["handler"].(map[string]interface{})
+	if _, hasMeta := handler["metadata"]; hasMeta {
+		t.Fatalf("expected no metadata for non-TLS protocol, got %v", handler["metadata"])
+	}
+}
+
 func TestFederationRuntimeReservePortRejectsWhenShareFlowExceeded(t *testing.T) {
 	r, err := repo.Open(filepath.Join(t.TempDir(), "panel.db"))
 	if err != nil {

go-backend/internal/http/handler/flow_policy.go

@@ -2,6 +2,7 @@ package handler
 
 import (
 	"encoding/json"
+	"errors"
 	"log"
 	"strconv"
 	"strings"
@@ -21,6 +22,7 @@ type userTunnelPolicy struct {
 	OutFlow  int64
 	ExpTime  int64
 	Status   int
+	Num      int
 }
 
 type gostConfigSnapshot struct {
@@ -43,6 +45,9 @@ func (h *Handler) processFlowItem(nodeID int64, 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 {
@@ -327,6 +332,90 @@ 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
+	}
+
+	if user.Num > 0 {
+		currentForwardCount, err := h.repo.CountActiveForwardsByUser(userID)
+		if err != nil {
+			return err
+		}
+		if currentForwardCount >= int64(user.Num) {
+			return errors.New("转发数量已达上限")
+		}
+	}
+
+	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")
+	}
+
+	if policy.Num > 0 {
+		currentTunnelForwardCount, err := h.repo.CountActiveForwardsByUserTunnel(userID, tunnelID)
+		if err != nil {
+			return err
+		}
+		if currentTunnelForwardCount >= int64(policy.Num) {
+			return errors.New("该隧道转发数量已达上限")
+		}
+	}
+
+	return nil
+}
+
 func (h *Handler) shouldPauseUser(userID int64, now int64) bool {
 	user, err := h.repo.GetUserByID(userID)
 	if err != nil || user == nil {
@@ -374,7 +463,7 @@ func (h *Handler) getUserTunnelPolicy(userTunnelID int64) (*userTunnelPolicy, er
 	return &userTunnelPolicy{
 		ID: ut.ID, UserID: ut.UserID, TunnelID: ut.TunnelID,
 		Flow: ut.Flow, InFlow: ut.InFlow, OutFlow: ut.OutFlow,
-		ExpTime: ut.ExpTime, Status: ut.Status,
+		ExpTime: ut.ExpTime, Status: ut.Status, Num: ut.Num,
 	}, nil
 }
 

go-backend/internal/http/handler/handler.go

@@ -16,17 +16,23 @@ import (
 	"time"
 
 	"go-backend/internal/auth"
+	"go-backend/internal/health"
 	"go-backend/internal/http/middleware"
 	"go-backend/internal/http/response"
+	"go-backend/internal/license"
+	"go-backend/internal/metrics"
 	"go-backend/internal/security"
 	"go-backend/internal/store/repo"
 	"go-backend/internal/ws"
-)
 
+	"github.com/google/uuid"
+)
 type Handler struct {
-	repo      *repo.Repository
-	jwtSecret string
-	wsServer  *ws.Server
+	repo        *repo.Repository
+	jwtSecret   string
+	wsServer    *ws.Server
+	metrics     *metrics.IngestionService
+	healthCheck *health.Checker
 
 	captchaMu     sync.Mutex
 	captchaTokens map[string]int64
@@ -38,8 +44,12 @@ type Handler struct {
 
 	upgradeMu              sync.Mutex
 	pendingUpgradeRedeploy map[int64]struct{}
+
+	qualityProber *tunnelQualityProber
 }
 
+const monitorTunnelQualityEnabledConfigKey = "monitor_tunnel_quality_enabled"
+
 type loginRequest struct {
 	Username  string `json:"username"`
 	Password  string `json:"password"`
@@ -60,6 +70,10 @@ type configSingleRequest struct {
 	Value string `json:"value"`
 }
 
+type licenseActivateRequest struct {
+	LicenseKey string `json:"license_key"`
+}
+
 type changePasswordRequest struct {
 	NewUsername     string `json:"newUsername"`
 	CurrentPassword string `json:"currentPassword"`
@@ -83,10 +97,32 @@ func New(repo *repo.Repository, jwtSecret string) *Handler {
 		repo:                   repo,
 		jwtSecret:              jwtSecret,
 		wsServer:               ws.NewServer(repo, jwtSecret),
+		metrics:                metrics.NewIngestionService(repo),
+		healthCheck:            nil,
 		captchaTokens:          make(map[string]int64),
 		pendingUpgradeRedeploy: make(map[int64]struct{}),
 	}
+	h.healthCheck = health.NewChecker(repo, h.wsServer)
+	h.qualityProber = newTunnelQualityProber(h)
 	h.wsServer.SetNodeOnlineHook(h.onNodeOnline)
+	h.wsServer.SetNodeMetricHook(func(nodeID int64, info ws.SystemInfo) {
+		metricInfo := metrics.SystemInfo{
+			Uptime:           info.Uptime,
+			BytesReceived:    info.BytesReceived,
+			BytesTransmitted: info.BytesTransmitted,
+			CPUUsage:         info.CPUUsage,
+			MemoryUsage:      info.MemoryUsage,
+			DiskUsage:        info.DiskUsage,
+			Load1:            info.Load1,
+			Load5:            info.Load5,
+			Load15:           info.Load15,
+			TCPConns:         info.TCPConns,
+			UDPConns:         info.UDPConns,
+			NetInSpeed:       info.NetInSpeed,
+			NetOutSpeed:      info.NetOutSpeed,
+		}
+		h.metrics.RecordNodeMetric(nodeID, metricInfo)
+	})
 	return h
 }
 
@@ -101,11 +137,13 @@ 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)
 	mux.HandleFunc("/api/v1/config/update", h.updateConfigs)
 	mux.HandleFunc("/api/v1/config/update-single", h.updateSingleConfig)
+	mux.HandleFunc("/api/v1/license/activate", h.licenseActivate)
 	mux.HandleFunc("/api/v1/backup/export", h.backupExport)
 	mux.HandleFunc("/api/v1/backup/import", h.backupImport)
 	mux.HandleFunc("/api/v1/backup/restore", h.backupImport)
@@ -122,6 +160,7 @@ 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)
@@ -133,6 +172,10 @@ func (h *Handler) Register(mux *http.ServeMux) {
 	mux.HandleFunc("/api/v1/tunnel/get", h.tunnelGet)
 	mux.HandleFunc("/api/v1/tunnel/update", h.tunnelUpdate)
 	mux.HandleFunc("/api/v1/tunnel/delete", h.tunnelDelete)
+	mux.HandleFunc("/api/v1/tunnel/delete-preview", h.tunnelDeletePreview)
+	mux.HandleFunc("/api/v1/tunnel/delete-with-forwards", h.tunnelDeleteWithForwards)
+	mux.HandleFunc("/api/v1/tunnel/batch-delete-preview", h.tunnelBatchDeletePreview)
+	mux.HandleFunc("/api/v1/tunnel/batch-delete-with-forwards", h.tunnelBatchDeleteWithForwards)
 	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)
@@ -194,6 +237,24 @@ func (h *Handler) Register(mux *http.ServeMux) {
 	mux.HandleFunc("/api/v1/announcement/get", h.getAnnouncement)
 	mux.HandleFunc("/api/v1/announcement/update", h.updateAnnouncement)
 
+	mux.HandleFunc("/api/v1/monitor/access", h.monitorAccessHandler)
+	mux.HandleFunc("/api/v1/monitor/nodes/", h.monitorNodeMetricsHandler)
+	mux.HandleFunc("/api/v1/monitor/nodes", h.monitorNodeListHandler)
+	mux.HandleFunc("/api/v1/monitor/tunnels", h.monitorTunnelListHandler)
+	mux.HandleFunc("/api/v1/monitor/tunnels/quality", h.monitorTunnelQualityHandler)
+	mux.HandleFunc("/api/v1/monitor/tunnels/", h.monitorTunnelMetrics)
+	mux.HandleFunc("/api/v1/monitor/services", h.monitorServiceListHandler)
+	mux.HandleFunc("/api/v1/monitor/services/create", h.monitorServiceCreate)
+	mux.HandleFunc("/api/v1/monitor/services/update", h.monitorServiceUpdate)
+	mux.HandleFunc("/api/v1/monitor/services/delete", h.monitorServiceDelete)
+	mux.HandleFunc("/api/v1/monitor/services/run", h.monitorServiceRun)
+	mux.HandleFunc("/api/v1/monitor/services/latest-results", h.monitorServiceLatestResultsHandler)
+	mux.HandleFunc("/api/v1/monitor/services/limits", h.monitorServiceLimitsHandler)
+	mux.HandleFunc("/api/v1/monitor/services/", h.monitorServiceResultsHandler)
+	mux.HandleFunc("/api/v1/monitor/permission/list", h.monitorPermissionList)
+	mux.HandleFunc("/api/v1/monitor/permission/assign", h.monitorPermissionAssign)
+	mux.HandleFunc("/api/v1/monitor/permission/remove", h.monitorPermissionRemove)
+
 	mux.HandleFunc("/flow/test", h.flowTest)
 	mux.HandleFunc("/flow/config", h.flowConfig)
 	mux.HandleFunc("/flow/upload", h.flowUpload)
@@ -571,7 +632,7 @@ 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,
@@ -722,6 +783,8 @@ func (h *Handler) flowUpload(w http.ResponseWriter, r *http.Request) {
 	if err == nil && strings.TrimSpace(raw) != "" {
 		var items []flowItem
 		if json.Unmarshal([]byte(raw), &items) == nil {
+			nowMs := time.Now().UnixMilli()
+			h.recordTunnelMetricsFromFlowItems(node.ID, items, nowMs)
 			for _, item := range items {
 				h.processFlowItem(node.ID, item)
 			}
@@ -732,6 +795,94 @@ func (h *Handler) flowUpload(w http.ResponseWriter, r *http.Request) {
 	_, _ = w.Write([]byte("ok"))
 }
 
+func (h *Handler) getOrCreateMachineFingerprint() (string, error) {
+	fp, _ := h.repo.GetViteConfigValue("machine_fingerprint")
+	if fp != "" {
+		return fp, nil
+	}
+
+	newFp := uuid.New().String()
+	now := time.Now().UnixMilli()
+	if err := h.repo.UpsertConfig("machine_fingerprint", newFp, now); err != nil {
+		return "", err
+	}
+	return newFp, nil
+}
+
+func (h *Handler) licenseActivate(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodPost {
+		response.WriteJSON(w, response.ErrDefault("请求失败"))
+		return
+	}
+
+	var req licenseActivateRequest
+	if err := decodeJSON(r.Body, &req); err != nil {
+		response.WriteJSON(w, response.ErrDefault("授权码不能为空"))
+		return
+	}
+
+	key := strings.TrimSpace(req.LicenseKey)
+	if key == "" {
+		response.WriteJSON(w, response.ErrDefault("授权码不能为空"))
+		return
+	}
+
+	accountID := "1bc96cac-09de-4cf4-af34-26afdad63a90"
+
+	fingerprint, err := h.getOrCreateMachineFingerprint()
+	if err != nil {
+		response.WriteJSON(w, response.ErrDefault("生成设备指纹失败"))
+		return
+	}
+
+	client := license.NewKeygenClient(accountID, "")
+	valResp, err := client.ValidateKeyWithFingerprint(key, fingerprint)
+	if err != nil {
+		response.WriteJSON(w, response.ErrDefault("连接授权服务器失败: "+err.Error()))
+		return
+	}
+
+	if !valResp.Meta.Valid {
+		if valResp.Meta.Code == "NO_MACHINES" || valResp.Meta.Code == "NO_MACHINE" || valResp.Meta.Code == "MACHINE_SCOPE_REQUIRED" || valResp.Meta.Code == "FINGERPRINT_SCOPE_MISMATCH" {
+			// Needs machine activation
+			client.Token = key
+			err = client.ActivateMachine(valResp.Data.ID, fingerprint)
+			if err != nil {
+				// Translate specific error messages or log them
+				response.WriteJSON(w, response.ErrDefault("设备绑定失败: "+err.Error()))
+				return
+			}
+			
+			// Validation might still fail with scope if we don't query via machine id, but since activate machine succeeded
+			// we can consider the license valid for our simple usecase
+		} else {
+			response.WriteJSON(w, response.ErrDefault("授权码无效或已过期 (Code: "+valResp.Meta.Code+")"))
+			return
+		}
+	}
+
+	now := time.Now().UnixMilli()
+	if err := h.repo.UpsertConfig("license_key", key, now); err != nil {
+		response.WriteJSON(w, response.Err(-2, err.Error()))
+		return
+	}
+	if err := h.repo.UpsertConfig("is_commercial", "true", now); err != nil {
+		response.WriteJSON(w, response.Err(-2, err.Error()))
+		return
+	}
+
+	expiry := valResp.Data.Attributes.Expiry
+	if expiry == "" {
+		expiry = "never"
+	}
+	if err := h.repo.UpsertConfig("license_expiry", expiry, now); err != nil {
+		response.WriteJSON(w, response.Err(-2, err.Error()))
+		return
+	}
+
+	response.WriteJSON(w, response.OKEmpty())
+}
+
 func (h *Handler) updateConfigs(w http.ResponseWriter, r *http.Request) {
 	if r.Method != http.MethodPost {
 		response.WriteJSON(w, response.ErrDefault("请求失败"))
@@ -748,6 +899,14 @@ func (h *Handler) updateConfigs(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
+	isCommercial, _ := h.repo.GetViteConfigValue("is_commercial")
+	protectedKeys := map[string]bool{
+		"app_name":          true,
+		"app_logo":          true,
+		"app_favicon":       true,
+		"hide_footer_brand": true,
+	}
+
 	now := time.Now().UnixMilli()
 	for k, v := range payload {
 		key := strings.TrimSpace(k)
@@ -755,6 +914,11 @@ func (h *Handler) updateConfigs(w http.ResponseWriter, r *http.Request) {
 			continue
 		}
 
+		if protectedKeys[key] && isCommercial != "true" {
+			response.WriteJSON(w, response.ErrDefault("需要商业版授权"))
+			return
+		}
+
 		value, err := normalizeAndValidateConfigValue(key, v)
 		if err != nil {
 			response.WriteJSON(w, response.ErrDefault(err.Error()))
@@ -787,13 +951,19 @@ func (h *Handler) updateSingleConfig(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
+	isCommercial, _ := h.repo.GetViteConfigValue("is_commercial")
+	if (name == "app_name" || name == "app_logo" || name == "app_favicon" || name == "hide_footer_brand") && isCommercial != "true" {
+		response.WriteJSON(w, response.ErrDefault("需要商业版授权"))
+		return
+	}
+
 	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" {
+	if value == "" && name != "app_logo" && name != "app_favicon" && name != "app_bg_image" {
 		response.WriteJSON(w, response.ErrDefault("配置值不能为空"))
 		return
 	}
@@ -832,11 +1002,32 @@ func normalizeAndValidateConfigValue(key, value string) (string, error) {
 		}
 
 		return pngDataURLPrefix + payload, nil
+	case monitorTunnelQualityEnabledConfigKey:
+		normalized := strings.TrimSpace(strings.ToLower(value))
+		switch normalized {
+		case "true", "false":
+			return normalized, nil
+		default:
+			return "", fmt.Errorf("隧道质量检测开关配置值无效")
+		}
 	default:
 		return value, nil
 	}
 }
 
+func (h *Handler) isTunnelQualityMonitoringEnabled() bool {
+	if h == nil || h.repo == nil {
+		return true
+	}
+
+	cfg, err := h.repo.GetConfigByName(monitorTunnelQualityEnabledConfigKey)
+	if err != nil || cfg == nil {
+		return true
+	}
+
+	return strings.TrimSpace(strings.ToLower(cfg.Value)) != "false"
+}
+
 func (h *Handler) userPackage(w http.ResponseWriter, r *http.Request) {
 	if r.Method != http.MethodPost {
 		response.WriteJSON(w, response.ErrDefault("请求失败"))
@@ -1184,6 +1375,21 @@ func nullableNullInt64(v sql.NullInt64) interface{} {
 	return nil
 }
 
+// flowCryptoCache caches AES crypto instances by secret to avoid per-request SHA256+GCM init.
+var flowCryptoCache sync.Map
+
+func getOrCreateFlowCrypto(secret string) *security.AESCrypto {
+	if v, ok := flowCryptoCache.Load(secret); ok {
+		return v.(*security.AESCrypto)
+	}
+	c, err := security.NewAESCrypto(secret)
+	if err != nil {
+		return nil
+	}
+	flowCryptoCache.Store(secret, c)
+	return c
+}
+
 func readAndDecryptFlowBody(body io.ReadCloser, secret string) (string, error) {
 	defer body.Close()
 	raw, err := io.ReadAll(body)
@@ -1204,8 +1410,8 @@ func readAndDecryptFlowBody(body io.ReadCloser, secret string) (string, error) {
 		return text, nil
 	}
 
-	crypto, err := security.NewAESCrypto(secret)
-	if err != nil {
+	crypto := getOrCreateFlowCrypto(secret)
+	if crypto == nil {
 		return text, nil
 	}
 	plain, err := crypto.Decrypt(wrap.Data)
@@ -1331,15 +1537,22 @@ func (h *Handler) getAnnouncement(w http.ResponseWriter, r *http.Request) {
 
 	if ann == nil {
 		response.WriteJSON(w, response.OK(map[string]interface{}{
-			"content": "",
-			"enabled": 0,
+			"content":     "",
+			"enabled":     0,
+			"update_time": 0,
 		}))
 		return
 	}
 
+	updateTime := ann.CreatedTime
+	if ann.UpdatedTime.Valid {
+		updateTime = ann.UpdatedTime.Int64
+	}
+
 	response.WriteJSON(w, response.OK(map[string]interface{}{
-		"content": ann.Content,
-		"enabled": ann.Enabled,
+		"content":     ann.Content,
+		"enabled":     ann.Enabled,
+		"update_time": updateTime,
 	}))
 }
 

go-backend/internal/http/handler/jobs.go

@@ -3,6 +3,8 @@ package handler
 import (
 	"context"
 	"time"
+
+	"go-backend/internal/license"
 )
 
 func (h *Handler) StartBackgroundJobs() {
@@ -18,11 +20,68 @@ func (h *Handler) StartBackgroundJobs() {
 	ctx, cancel := context.WithCancel(context.Background())
 	h.jobsCancel = cancel
 	h.jobsStarted = true
-	h.jobsWG.Add(2)
+	h.jobsWG.Add(7)
 	h.jobsMu.Unlock()
 
 	go h.runHourlyStatsLoop(ctx)
 	go h.runDailyMaintenanceLoop(ctx)
+	go h.runNodeRenewalCycleLoop(ctx)
+	go h.runMetricsIngestion(ctx)
+	go h.runHealthChecks(ctx)
+	go h.runTunnelQualityProber(ctx)
+	go h.runValidateLicenseJob(ctx)
+}
+
+func (h *Handler) runValidateLicenseJob(ctx context.Context) {
+	defer h.jobsWG.Done()
+	ticker := time.NewTicker(12 * time.Hour)
+	defer ticker.Stop()
+
+	for {
+		select {
+		case <-ctx.Done():
+			return
+		case <-ticker.C:
+			h.validateLicenseJob()
+		}
+	}
+}
+
+func (h *Handler) validateLicenseJob() {
+	if h == nil || h.repo == nil {
+		return
+	}
+
+	accountID := "1bc96cac-09de-4cf4-af34-26afdad63a90"
+
+	key, _ := h.repo.GetViteConfigValue("license_key")
+	isCommercial, _ := h.repo.GetViteConfigValue("is_commercial")
+
+	if key == "" || isCommercial != "true" {
+		return // Nothing to validate
+	}
+
+	fingerprint, _ := h.repo.GetViteConfigValue("machine_fingerprint")
+	client := license.NewKeygenClient(accountID, "")
+	valResp, err := client.ValidateKeyWithFingerprint(key, fingerprint)
+	
+	if err != nil {
+		// Network error or timeout. Grace period by not revoking immediately here.
+		return
+	}
+
+	if !valResp.Meta.Valid {
+		// License is invalid (e.g., revoked, suspended, expired). Downgrade the system.
+		now := time.Now().UnixMilli()
+		_ = h.repo.UpsertConfig("is_commercial", "false", now)
+	} else {
+		now := time.Now().UnixMilli()
+		expiry := valResp.Data.Attributes.Expiry
+		if expiry == "" {
+			expiry = "never"
+		}
+		_ = h.repo.UpsertConfig("license_expiry", expiry, now)
+	}
 }
 
 func (h *Handler) StopBackgroundJobs() {
@@ -46,6 +105,29 @@ func (h *Handler) StopBackgroundJobs() {
 	h.jobsWG.Wait()
 }
 
+func (h *Handler) runMetricsIngestion(ctx context.Context) {
+	defer h.jobsWG.Done()
+	if h.metrics != nil {
+		h.metrics.Start(ctx)
+	}
+}
+
+func (h *Handler) runHealthChecks(ctx context.Context) {
+	defer h.jobsWG.Done()
+	if h.healthCheck != nil {
+		h.healthCheck.Start(ctx)
+	}
+}
+
+func (h *Handler) runTunnelQualityProber(ctx context.Context) {
+	defer h.jobsWG.Done()
+	if h == nil || h.qualityProber == nil || !h.isTunnelQualityMonitoringEnabled() {
+		return
+	}
+
+	h.qualityProber.Start(ctx)
+}
+
 func (h *Handler) runHourlyStatsLoop(ctx context.Context) {
 	defer h.jobsWG.Done()
 
@@ -135,6 +217,7 @@ func (h *Handler) runResetAndExpiryJob(now time.Time) {
 	}
 
 	h.resetMonthlyFlow(now)
+	h.resetUserQuotaWindows(now)
 	h.disableExpiredUsers(now.UnixMilli())
 	h.disableExpiredUserTunnels(now.UnixMilli())
 }
@@ -176,3 +259,39 @@ 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
+}

go-backend/internal/http/handler/jobs_renewal_test.go

@@ -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)
+	}
+}

go-backend/internal/http/handler/jobs_test.go

@@ -143,3 +143,40 @@ func TestRunResetAndExpiryJobResetsFlowAndDisablesExpiredRecords(t *testing.T) {
 		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)
+	}
+}

go-backend/internal/http/handler/monitoring.go

@@ -0,0 +1,940 @@
+package handler
+
+import (
+	"log"
+	"net/http"
+	"strconv"
+	"strings"
+	"time"
+
+	"go-backend/internal/http/response"
+	"go-backend/internal/monitoring"
+	"go-backend/internal/store/model"
+)
+
+const (
+	defaultMetricsRangeMs = int64(60 * 60 * 1000)      // 1h
+	maxMetricsRangeMs     = int64(24 * 60 * 60 * 1000) // 24h
+)
+
+func (h *Handler) resolveServiceMonitorLimits() monitoring.ServiceMonitorLimits {
+	defaults := monitoring.DefaultServiceMonitorLimits()
+	if h == nil || h.repo == nil {
+		return defaults
+	}
+	cfg, err := h.repo.GetConfigsByNames([]string{
+		monitoring.ConfigServiceMonitorCheckerScanIntervalSec,
+		monitoring.ConfigServiceMonitorWorkerLimit,
+		monitoring.ConfigServiceMonitorMinIntervalSec,
+		monitoring.ConfigServiceMonitorDefaultIntervalSec,
+		monitoring.ConfigServiceMonitorMinTimeoutSec,
+		monitoring.ConfigServiceMonitorDefaultTimeoutSec,
+		monitoring.ConfigServiceMonitorMaxTimeoutSec,
+	})
+	if err != nil {
+		return defaults
+	}
+	return monitoring.ServiceMonitorLimitsFromConfigMap(cfg)
+}
+
+func (h *Handler) monitorNodeMetricsHandler(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodGet {
+		response.WriteJSON(w, response.ErrDefault("请求失败"))
+		return
+	}
+	if !h.ensureMonitoringAccess(w, r) {
+		return
+	}
+
+	path := r.URL.Path
+	prefix := "/api/v1/monitor/nodes/"
+	if !strings.HasPrefix(path, prefix) {
+		response.WriteJSON(w, response.ErrDefault("无效的路径"))
+		return
+	}
+
+	rest := strings.TrimPrefix(path, prefix)
+	if strings.HasSuffix(rest, "/metrics/latest") {
+		h.handleNodeMetricsLatest(w, r, strings.TrimSuffix(rest, "/metrics/latest"))
+		return
+	}
+	if strings.HasSuffix(rest, "/metrics") {
+		h.handleNodeMetrics(w, r, strings.TrimSuffix(rest, "/metrics"))
+		return
+	}
+
+	response.WriteJSON(w, response.ErrDefault("无效的路径"))
+}
+
+type monitorNodeListItem struct {
+	ID          int64  `json:"id"`
+	Inx         int    `json:"inx"`
+	Name        string `json:"name"`
+	Status      int    `json:"status"`
+	Version     string `json:"version"`
+	UpdatedTime int64  `json:"updatedTime"`
+}
+
+func (h *Handler) monitorNodeListHandler(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodGet {
+		response.WriteJSON(w, response.ErrDefault("请求失败"))
+		return
+	}
+	if !h.ensureMonitoringAccess(w, r) {
+		return
+	}
+
+	nodes, err := h.repo.ListMonitorNodes()
+	if err != nil {
+		response.WriteJSON(w, response.Err(-2, err.Error()))
+		return
+	}
+
+	items := make([]monitorNodeListItem, 0, len(nodes))
+	for _, n := range nodes {
+		updated := int64(0)
+		if n.UpdatedTime.Valid {
+			updated = n.UpdatedTime.Int64
+		}
+		items = append(items, monitorNodeListItem{
+			ID:          n.ID,
+			Inx:         n.Inx,
+			Name:        n.Name,
+			Status:      n.Status,
+			Version:     n.Version.String,
+			UpdatedTime: updated,
+		})
+	}
+
+	response.WriteJSON(w, response.OK(items))
+}
+
+type monitorTunnelListItem struct {
+	ID          int64  `json:"id"`
+	Inx         int    `json:"inx"`
+	Name        string `json:"name"`
+	Status      int    `json:"status"`
+	UpdatedTime int64  `json:"updatedTime"`
+}
+
+func (h *Handler) monitorTunnelListHandler(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodGet {
+		response.WriteJSON(w, response.ErrDefault("请求失败"))
+		return
+	}
+	if !h.ensureMonitoringAccess(w, r) {
+		return
+	}
+
+	tunnels, err := h.repo.ListMonitorTunnels()
+	if err != nil {
+		response.WriteJSON(w, response.Err(-2, err.Error()))
+		return
+	}
+
+	items := make([]monitorTunnelListItem, 0, len(tunnels))
+	for _, t := range tunnels {
+		items = append(items, monitorTunnelListItem{
+			ID:          t.ID,
+			Inx:         t.Inx,
+			Name:        t.Name,
+			Status:      t.Status,
+			UpdatedTime: t.UpdatedTime,
+		})
+	}
+
+	response.WriteJSON(w, response.OK(items))
+}
+
+func (h *Handler) handleNodeMetrics(w http.ResponseWriter, r *http.Request, nodeIDStr string) {
+	nodeID, err := strconv.ParseInt(nodeIDStr, 10, 64)
+	if err != nil || nodeID <= 0 {
+		response.WriteJSON(w, response.ErrDefault("无效的节点ID"))
+		return
+	}
+
+	now := time.Now().UnixMilli()
+	startMs := now - defaultMetricsRangeMs
+	endMs := now
+
+	if s := r.URL.Query().Get("start"); s != "" {
+		if v, err := strconv.ParseInt(s, 10, 64); err == nil {
+			startMs = v
+		}
+	}
+	if e := r.URL.Query().Get("end"); e != "" {
+		if v, err := strconv.ParseInt(e, 10, 64); err == nil {
+			endMs = v
+		}
+	}
+	if startMs <= 0 || endMs <= 0 {
+		response.WriteJSON(w, response.ErrDefault("无效的时间范围"))
+		return
+	}
+	if endMs < startMs {
+		response.WriteJSON(w, response.ErrDefault("无效的时间范围"))
+		return
+	}
+	if endMs-startMs > maxMetricsRangeMs {
+		response.WriteJSON(w, response.ErrDefault("时间范围过大"))
+		return
+	}
+
+	metrics, err := h.repo.GetNodeMetrics(nodeID, startMs, endMs)
+	if err != nil {
+		response.WriteJSON(w, response.Err(-2, err.Error()))
+		return
+	}
+
+	response.WriteJSON(w, response.OK(metrics))
+}
+
+func (h *Handler) handleNodeMetricsLatest(w http.ResponseWriter, _ *http.Request, nodeIDStr string) {
+	nodeID, err := strconv.ParseInt(nodeIDStr, 10, 64)
+	if err != nil || nodeID <= 0 {
+		response.WriteJSON(w, response.ErrDefault("无效的节点ID"))
+		return
+	}
+
+	metric, err := h.repo.GetLatestNodeMetric(nodeID)
+	if err != nil {
+		response.WriteJSON(w, response.Err(-2, err.Error()))
+		return
+	}
+	if metric == nil {
+		response.WriteJSON(w, response.OK(nil))
+		return
+	}
+
+	response.WriteJSON(w, response.OK(metric))
+}
+
+func (h *Handler) monitorTunnelQualityHandler(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodGet {
+		response.WriteJSON(w, response.ErrDefault("请求失败"))
+		return
+	}
+	if !h.ensureMonitoringAccess(w, r) {
+		return
+	}
+
+	// Try in-memory cache first
+	if h.qualityProber != nil {
+		items := h.qualityProber.GetAll()
+		if len(items) > 0 {
+			response.WriteJSON(w, response.OK(items))
+			return
+		}
+	}
+
+	// Fallback to database (latest per tunnel)
+	qualities, err := h.repo.GetLatestTunnelQualities()
+	if err != nil {
+		response.WriteJSON(w, response.Err(-2, err.Error()))
+		return
+	}
+
+	snapshots := make([]tunnelQualitySnapshot, 0, len(qualities))
+	for _, q := range qualities {
+		snapshots = append(snapshots, tunnelQualitySnapshot{
+			TunnelID:           q.TunnelID,
+			EntryToExitLatency: q.EntryToExitLatency,
+			ExitToBingLatency:  q.ExitToBingLatency,
+			EntryToExitLoss:    q.EntryToExitLoss,
+			ExitToBingLoss:     q.ExitToBingLoss,
+			Success:            q.Success == 1,
+			ErrorMessage:       q.ErrorMessage,
+			Timestamp:          q.Timestamp,
+			ChainDetails:       q.ChainDetails,
+		})
+	}
+	response.WriteJSON(w, response.OK(snapshots))
+}
+
+// monitorTunnelQualityHistory returns quality probe history for charting.
+// GET /api/v1/monitor/tunnels/{id}/quality?start=...&end=...
+// Mirrors monitorTunnelMetrics / monitorServiceResultsHandler pattern.
+func (h *Handler) monitorTunnelQualityHistory(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodGet {
+		response.WriteJSON(w, response.ErrDefault("请求失败"))
+		return
+	}
+	if !h.ensureMonitoringAccess(w, r) {
+		return
+	}
+
+	tunnelIDStr := extractPathParam(r.URL.Path, "/api/v1/monitor/tunnels/", "/quality")
+	tunnelID, err := strconv.ParseInt(tunnelIDStr, 10, 64)
+	if err != nil || tunnelID <= 0 {
+		response.WriteJSON(w, response.ErrDefault("无效的隧道ID"))
+		return
+	}
+
+	now := time.Now().UnixMilli()
+	startMs := now - defaultMetricsRangeMs
+	endMs := now
+
+	if s := r.URL.Query().Get("start"); s != "" {
+		if v, err := strconv.ParseInt(s, 10, 64); err == nil {
+			startMs = v
+		}
+	}
+	if e := r.URL.Query().Get("end"); e != "" {
+		if v, err := strconv.ParseInt(e, 10, 64); err == nil {
+			endMs = v
+		}
+	}
+	if startMs <= 0 || endMs <= 0 || endMs < startMs {
+		response.WriteJSON(w, response.ErrDefault("无效的时间范围"))
+		return
+	}
+	if endMs-startMs > maxMetricsRangeMs {
+		response.WriteJSON(w, response.ErrDefault("时间范围过大"))
+		return
+	}
+
+	results, err := h.repo.GetTunnelQualityHistory(tunnelID, startMs, endMs)
+	if err != nil {
+		response.WriteJSON(w, response.Err(-2, err.Error()))
+		return
+	}
+
+	response.WriteJSON(w, response.OK(results))
+}
+
+func (h *Handler) monitorTunnelMetrics(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodGet {
+		response.WriteJSON(w, response.ErrDefault("请求失败"))
+		return
+	}
+	if !h.ensureMonitoringAccess(w, r) {
+		return
+	}
+
+	path := r.URL.Path
+	prefix := "/api/v1/monitor/tunnels/"
+	if !strings.HasPrefix(path, prefix) {
+		response.WriteJSON(w, response.ErrDefault("无效的路径"))
+		return
+	}
+
+	rest := strings.TrimPrefix(path, prefix)
+
+	// Route: /api/v1/monitor/tunnels/{id}/quality
+	if strings.HasSuffix(rest, "/quality") {
+		h.monitorTunnelQualityHistory(w, r)
+		return
+	}
+
+	// Route: /api/v1/monitor/tunnels/{id}/metrics (original)
+	tunnelIDStr := extractPathParam(path, prefix, "/metrics")
+	tunnelID, err := strconv.ParseInt(tunnelIDStr, 10, 64)
+	if err != nil || tunnelID <= 0 {
+		response.WriteJSON(w, response.ErrDefault("无效的隧道ID"))
+		return
+	}
+
+	now := time.Now().UnixMilli()
+	startMs := now - defaultMetricsRangeMs
+	endMs := now
+
+	if s := r.URL.Query().Get("start"); s != "" {
+		if v, err := strconv.ParseInt(s, 10, 64); err == nil {
+			startMs = v
+		}
+	}
+	if e := r.URL.Query().Get("end"); e != "" {
+		if v, err := strconv.ParseInt(e, 10, 64); err == nil {
+			endMs = v
+		}
+	}
+	if startMs <= 0 || endMs <= 0 {
+		response.WriteJSON(w, response.ErrDefault("无效的时间范围"))
+		return
+	}
+	if endMs < startMs {
+		response.WriteJSON(w, response.ErrDefault("无效的时间范围"))
+		return
+	}
+	if endMs-startMs > maxMetricsRangeMs {
+		response.WriteJSON(w, response.ErrDefault("时间范围过大"))
+		return
+	}
+
+	metrics, err := h.repo.GetTunnelMetricsAggregated(tunnelID, startMs, endMs)
+	if err != nil {
+		response.WriteJSON(w, response.Err(-2, err.Error()))
+		return
+	}
+
+	response.WriteJSON(w, response.OK(metrics))
+}
+
+func (h *Handler) monitorServiceListHandler(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodGet {
+		response.WriteJSON(w, response.ErrDefault("请求失败"))
+		return
+	}
+	if !h.ensureMonitoringAccess(w, r) {
+		return
+	}
+
+	monitors, err := h.repo.ListServiceMonitors()
+	if err != nil {
+		response.WriteJSON(w, response.Err(-2, err.Error()))
+		return
+	}
+
+	response.WriteJSON(w, response.OK(monitors))
+}
+
+type createServiceMonitorRequest struct {
+	Name        string `json:"name"`
+	Type        string `json:"type"`
+	Target      string `json:"target"`
+	IntervalSec int    `json:"intervalSec"`
+	TimeoutSec  int    `json:"timeoutSec"`
+	NodeID      int64  `json:"nodeId"`
+	Enabled     *int   `json:"enabled"`
+}
+
+func (h *Handler) monitorServiceCreate(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodPost {
+		response.WriteJSON(w, response.ErrDefault("请求失败"))
+		return
+	}
+	if !h.ensureMonitoringAccess(w, r) {
+		return
+	}
+
+	var req createServiceMonitorRequest
+	if err := decodeJSON(r.Body, &req); err != nil {
+		response.WriteJSON(w, response.ErrDefault("请求参数错误"))
+		return
+	}
+
+	name := strings.TrimSpace(req.Name)
+	if name == "" {
+		response.WriteJSON(w, response.ErrDefault("名称不能为空"))
+		return
+	}
+
+	monitorType := strings.ToLower(strings.TrimSpace(req.Type))
+	if monitorType != "tcp" && monitorType != "icmp" {
+		response.WriteJSON(w, response.ErrDefault("类型必须是 tcp 或 icmp"))
+		return
+	}
+
+	target := strings.TrimSpace(req.Target)
+	if target == "" {
+		response.WriteJSON(w, response.ErrDefault("目标地址不能为空"))
+		return
+	}
+
+	limits := h.resolveServiceMonitorLimits()
+
+	intervalSec := req.IntervalSec
+	if intervalSec <= 0 {
+		intervalSec = limits.DefaultIntervalSec
+	}
+	if intervalSec < limits.MinIntervalSec {
+		intervalSec = limits.MinIntervalSec
+	}
+
+	timeoutSec := req.TimeoutSec
+	if timeoutSec <= 0 {
+		timeoutSec = limits.DefaultTimeoutSec
+	}
+	if timeoutSec < limits.MinTimeoutSec {
+		timeoutSec = limits.MinTimeoutSec
+	}
+	if timeoutSec > limits.MaxTimeoutSec {
+		timeoutSec = limits.MaxTimeoutSec
+	}
+
+	enabled := 1
+	if req.Enabled != nil {
+		if *req.Enabled == 0 || *req.Enabled == 1 {
+			enabled = *req.Enabled
+		}
+	}
+
+	now := time.Now().UnixMilli()
+	if req.NodeID > 0 {
+		n, err := h.repo.GetNodeByID(req.NodeID)
+		if err != nil {
+			response.WriteJSON(w, response.Err(-2, err.Error()))
+			return
+		}
+		if n == nil {
+			response.WriteJSON(w, response.ErrDefault("节点不存在"))
+			return
+		}
+	}
+	m := &model.ServiceMonitor{
+		Name:        name,
+		Type:        monitorType,
+		Target:      target,
+		IntervalSec: intervalSec,
+		TimeoutSec:  timeoutSec,
+		NodeID:      req.NodeID,
+		Enabled:     enabled,
+		CreatedTime: now,
+		UpdatedTime: now,
+	}
+	if m.Type == "icmp" && m.NodeID <= 0 {
+		response.WriteJSON(w, response.ErrDefault("ICMP 监控必须选择执行节点"))
+		return
+	}
+	// enabled is already normalized above.
+
+	if err := h.repo.CreateServiceMonitor(m); err != nil {
+		response.WriteJSON(w, response.Err(-2, err.Error()))
+		return
+	}
+
+	response.WriteJSON(w, response.OK(m))
+}
+
+type updateServiceMonitorRequest struct {
+	ID          int64  `json:"id"`
+	Name        string `json:"name"`
+	Type        string `json:"type"`
+	Target      string `json:"target"`
+	IntervalSec int    `json:"intervalSec"`
+	TimeoutSec  int    `json:"timeoutSec"`
+	NodeID      *int64 `json:"nodeId"`
+	Enabled     *int   `json:"enabled"`
+}
+
+func (h *Handler) monitorServiceUpdate(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodPost {
+		response.WriteJSON(w, response.ErrDefault("请求失败"))
+		return
+	}
+	if !h.ensureMonitoringAccess(w, r) {
+		return
+	}
+
+	var req updateServiceMonitorRequest
+	if err := decodeJSON(r.Body, &req); err != nil {
+		response.WriteJSON(w, response.ErrDefault("请求参数错误"))
+		return
+	}
+
+	if req.ID <= 0 {
+		response.WriteJSON(w, response.ErrDefault("无效的监控ID"))
+		return
+	}
+
+	existing, err := h.repo.GetServiceMonitor(req.ID)
+	if err != nil {
+		response.WriteJSON(w, response.Err(-2, err.Error()))
+		return
+	}
+	if existing == nil {
+		response.WriteJSON(w, response.ErrDefault("监控不存在"))
+		return
+	}
+
+	name := strings.TrimSpace(req.Name)
+	if name != "" {
+		existing.Name = name
+	}
+
+	monitorType := strings.ToLower(strings.TrimSpace(req.Type))
+	if monitorType == "tcp" || monitorType == "icmp" {
+		existing.Type = monitorType
+	}
+
+	target := strings.TrimSpace(req.Target)
+	if target != "" {
+		existing.Target = target
+	}
+
+	limits := h.resolveServiceMonitorLimits()
+
+	if req.IntervalSec > 0 {
+		intervalSec := req.IntervalSec
+		if intervalSec < limits.MinIntervalSec {
+			intervalSec = limits.MinIntervalSec
+		}
+		existing.IntervalSec = intervalSec
+	}
+	if req.TimeoutSec > 0 {
+		timeoutSec := req.TimeoutSec
+		if timeoutSec < limits.MinTimeoutSec {
+			timeoutSec = limits.MinTimeoutSec
+		}
+		if timeoutSec > limits.MaxTimeoutSec {
+			timeoutSec = limits.MaxTimeoutSec
+		}
+		existing.TimeoutSec = timeoutSec
+	}
+
+	if req.NodeID != nil {
+		existing.NodeID = *req.NodeID
+	}
+	if req.Enabled != nil {
+		if *req.Enabled == 0 || *req.Enabled == 1 {
+			existing.Enabled = *req.Enabled
+		}
+	}
+
+	existing.UpdatedTime = time.Now().UnixMilli()
+	if existing.Type == "icmp" && existing.NodeID <= 0 {
+		response.WriteJSON(w, response.ErrDefault("ICMP 监控必须选择执行节点"))
+		return
+	}
+	if existing.NodeID > 0 {
+		n, err := h.repo.GetNodeByID(existing.NodeID)
+		if err != nil {
+			response.WriteJSON(w, response.Err(-2, err.Error()))
+			return
+		}
+		if n == nil {
+			response.WriteJSON(w, response.ErrDefault("节点不存在"))
+			return
+		}
+	}
+
+	if err := h.repo.UpdateServiceMonitor(existing); err != nil {
+		response.WriteJSON(w, response.Err(-2, err.Error()))
+		return
+	}
+
+	response.WriteJSON(w, response.OK(existing))
+}
+
+type deleteServiceMonitorRequest struct {
+	ID int64 `json:"id"`
+}
+
+func (h *Handler) monitorServiceDelete(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodPost {
+		response.WriteJSON(w, response.ErrDefault("请求失败"))
+		return
+	}
+	if !h.ensureMonitoringAccess(w, r) {
+		return
+	}
+
+	var req deleteServiceMonitorRequest
+	if err := decodeJSON(r.Body, &req); err != nil {
+		response.WriteJSON(w, response.ErrDefault("请求参数错误"))
+		return
+	}
+
+	if req.ID <= 0 {
+		response.WriteJSON(w, response.ErrDefault("无效的监控ID"))
+		return
+	}
+
+	if err := h.repo.DeleteServiceMonitor(req.ID); err != nil {
+		response.WriteJSON(w, response.Err(-2, err.Error()))
+		return
+	}
+
+	response.WriteJSON(w, response.OKEmpty())
+}
+
+func (h *Handler) monitorServiceRun(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodPost {
+		response.WriteJSON(w, response.ErrDefault("请求失败"))
+		return
+	}
+	if !h.ensureMonitoringAccess(w, r) {
+		return
+	}
+	if h.healthCheck == nil {
+		response.WriteJSON(w, response.ErrDefault("监控服务不可用"))
+		return
+	}
+
+	var req deleteServiceMonitorRequest
+	if err := decodeJSON(r.Body, &req); err != nil {
+		response.WriteJSON(w, response.ErrDefault("请求参数错误"))
+		return
+	}
+	if req.ID <= 0 {
+		response.WriteJSON(w, response.ErrDefault("无效的监控ID"))
+		return
+	}
+
+	m, err := h.repo.GetServiceMonitor(req.ID)
+	if err != nil {
+		response.WriteJSON(w, response.Err(-2, err.Error()))
+		return
+	}
+	if m == nil {
+		response.WriteJSON(w, response.ErrDefault("监控不存在"))
+		return
+	}
+
+	res, err := h.healthCheck.RunOnce(m)
+	if err != nil {
+		response.WriteJSON(w, response.Err(-2, err.Error()))
+		return
+	}
+	if err := h.repo.InsertServiceMonitorResult(res); err != nil {
+		log.Printf("monitoring write failed op=service_monitor_result.manual_insert monitor_id=%d err=%v", res.MonitorID, err)
+	}
+	response.WriteJSON(w, response.OK(res))
+}
+
+func (h *Handler) monitorServiceResultsHandler(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodGet {
+		response.WriteJSON(w, response.ErrDefault("请求失败"))
+		return
+	}
+	if !h.ensureMonitoringAccess(w, r) {
+		return
+	}
+
+	monitorIDStr := extractPathParam(r.URL.Path, "/api/v1/monitor/services/", "/results")
+	monitorID, err := strconv.ParseInt(monitorIDStr, 10, 64)
+	if err != nil || monitorID <= 0 {
+		response.WriteJSON(w, response.ErrDefault("无效的监控ID"))
+		return
+	}
+
+	// If start/end time range is provided, use time-based query (mirrors node metrics / tunnel quality pattern).
+	startStr := r.URL.Query().Get("start")
+	endStr := r.URL.Query().Get("end")
+	if startStr != "" && endStr != "" {
+		startMs, err1 := strconv.ParseInt(startStr, 10, 64)
+		endMs, err2 := strconv.ParseInt(endStr, 10, 64)
+		if err1 != nil || err2 != nil || startMs <= 0 || endMs <= 0 || endMs < startMs {
+			response.WriteJSON(w, response.ErrDefault("无效的时间范围"))
+			return
+		}
+		if endMs-startMs > maxMetricsRangeMs {
+			response.WriteJSON(w, response.ErrDefault("时间范围过大"))
+			return
+		}
+		results, err := h.repo.GetServiceMonitorResultsByTimeRange(monitorID, startMs, endMs)
+		if err != nil {
+			response.WriteJSON(w, response.Err(-2, err.Error()))
+			return
+		}
+		response.WriteJSON(w, response.OK(results))
+		return
+	}
+
+	// Fallback: count-based limit query (backward compat).
+	limit := 100
+	if l := r.URL.Query().Get("limit"); l != "" {
+		if v, err := strconv.Atoi(l); err == nil && v > 0 && v <= 1000 {
+			limit = v
+		}
+	}
+
+	results, err := h.repo.GetServiceMonitorResults(monitorID, limit)
+	if err != nil {
+		response.WriteJSON(w, response.Err(-2, err.Error()))
+		return
+	}
+
+	response.WriteJSON(w, response.OK(results))
+}
+
+func (h *Handler) monitorServiceLatestResultsHandler(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodGet {
+		response.WriteJSON(w, response.ErrDefault("请求失败"))
+		return
+	}
+	if !h.ensureMonitoringAccess(w, r) {
+		return
+	}
+
+	// Try in-memory cache first (updated every 1s)
+	if h.healthCheck != nil {
+		cached := h.healthCheck.GetLatestCached()
+		if len(cached) > 0 {
+			response.WriteJSON(w, response.OK(cached))
+			return
+		}
+	}
+
+	// Fallback to database
+	results, err := h.repo.GetLatestServiceMonitorResults()
+	if err != nil {
+		response.WriteJSON(w, response.Err(-2, err.Error()))
+		return
+	}
+	response.WriteJSON(w, response.OK(results))
+}
+
+func (h *Handler) monitorServiceLimitsHandler(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodGet {
+		response.WriteJSON(w, response.ErrDefault("请求失败"))
+		return
+	}
+	if !h.ensureMonitoringAccess(w, r) {
+		return
+	}
+	response.WriteJSON(w, response.OK(h.resolveServiceMonitorLimits()))
+}
+
+func extractPathParam(path, prefix, suffix string) string {
+	if !strings.HasPrefix(path, prefix) {
+		return ""
+	}
+	rest := strings.TrimPrefix(path, prefix)
+	if suffix != "" {
+		rest = strings.TrimSuffix(rest, suffix)
+	}
+	return rest
+}
+
+type monitorAccessData struct {
+	Allowed bool   `json:"allowed"`
+	Reason  string `json:"reason,omitempty"`
+}
+
+// monitorAccessHandler is a lightweight capability check for frontend navigation.
+// It does NOT replace authorization on the actual monitoring endpoints.
+func (h *Handler) monitorAccessHandler(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodGet {
+		response.WriteJSON(w, response.ErrDefault("请求失败"))
+		return
+	}
+
+	userID, roleID, err := userRoleFromRequest(r)
+	if err != nil {
+		response.WriteJSON(w, response.Err(401, "未登录或token已过期"))
+		return
+	}
+	if roleID == 0 {
+		response.WriteJSON(w, response.OK(monitorAccessData{Allowed: true}))
+		return
+	}
+
+	allowed, err := h.repo.HasMonitorPermission(userID)
+	if err != nil {
+		response.WriteJSON(w, response.Err(-2, err.Error()))
+		return
+	}
+	data := monitorAccessData{Allowed: allowed}
+	if !allowed {
+		data.Reason = "need_admin_grant"
+	}
+	response.WriteJSON(w, response.OK(data))
+}
+
+func (h *Handler) ensureAdminAccess(w http.ResponseWriter, r *http.Request) bool {
+	_, roleID, err := userRoleFromRequest(r)
+	if err != nil {
+		response.WriteJSON(w, response.Err(401, "未登录或token已过期"))
+		return false
+	}
+	if roleID != 0 {
+		response.WriteJSON(w, response.Err(403, "权限不足，仅管理员可操作"))
+		return false
+	}
+	return true
+}
+
+func (h *Handler) ensureMonitoringAccess(w http.ResponseWriter, r *http.Request) bool {
+	userID, roleID, err := userRoleFromRequest(r)
+	if err != nil {
+		response.WriteJSON(w, response.Err(401, "未登录或token已过期"))
+		return false
+	}
+	if roleID == 0 {
+		return true
+	}
+	allowed, err := h.repo.HasMonitorPermission(userID)
+	if err != nil {
+		response.WriteJSON(w, response.Err(-2, err.Error()))
+		return false
+	}
+	if !allowed {
+		response.WriteJSON(w, response.Err(403, "权限不足：当前账户非管理员，且未被授予监控权限。请联系管理员在用户管理中授权监控权限。"))
+		return false
+	}
+	return true
+}
+
+func (h *Handler) monitorPermissionList(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodGet {
+		response.WriteJSON(w, response.ErrDefault("请求失败"))
+		return
+	}
+	if !h.ensureAdminAccess(w, r) {
+		return
+	}
+
+	items, err := h.repo.ListMonitorPermissions()
+	if err != nil {
+		response.WriteJSON(w, response.Err(-2, err.Error()))
+		return
+	}
+	response.WriteJSON(w, response.OK(items))
+}
+
+type monitorPermissionMutationRequest struct {
+	UserID int64 `json:"userId"`
+}
+
+func (h *Handler) monitorPermissionAssign(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodPost {
+		response.WriteJSON(w, response.ErrDefault("请求失败"))
+		return
+	}
+	if !h.ensureAdminAccess(w, r) {
+		return
+	}
+
+	var req monitorPermissionMutationRequest
+	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("无效的用户ID"))
+		return
+	}
+
+	u, err := h.repo.GetUserByID(req.UserID)
+	if err != nil {
+		response.WriteJSON(w, response.Err(-2, err.Error()))
+		return
+	}
+	if u == nil {
+		response.WriteJSON(w, response.ErrDefault("用户不存在"))
+		return
+	}
+
+	if err := h.repo.InsertMonitorPermission(req.UserID, time.Now().UnixMilli()); err != nil {
+		response.WriteJSON(w, response.Err(-2, err.Error()))
+		return
+	}
+	response.WriteJSON(w, response.OKEmpty())
+}
+
+func (h *Handler) monitorPermissionRemove(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodPost {
+		response.WriteJSON(w, response.ErrDefault("请求失败"))
+		return
+	}
+	if !h.ensureAdminAccess(w, r) {
+		return
+	}
+
+	var req monitorPermissionMutationRequest
+	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("无效的用户ID"))
+		return
+	}
+
+	if err := h.repo.DeleteMonitorPermission(req.UserID); err != nil {
+		response.WriteJSON(w, response.Err(-2, err.Error()))
+		return
+	}
+	response.WriteJSON(w, response.OKEmpty())
+}

go-backend/internal/http/handler/mutations_forward_ports_test.go

@@ -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])
+	}
+}

go-backend/internal/http/handler/tunnel_delete_resolution.go

@@ -0,0 +1,655 @@
+package handler
+
+import (
+	"errors"
+	"fmt"
+	"net/http"
+	"strings"
+	"time"
+
+	"go-backend/internal/http/response"
+)
+
+const tunnelDeletePreviewSampleLimit = 5
+
+const (
+	tunnelDeleteActionReplace        = "replace"
+	tunnelDeleteActionDeleteForwards = "delete_forwards"
+)
+
+var (
+	errInvalidTunnelDeleteTarget = errors.New("invalid tunnel delete target")
+)
+
+type tunnelDeleteForwardPreviewItem struct {
+	ID       int64  `json:"id"`
+	Name     string `json:"name"`
+	UserID   int64  `json:"userId"`
+	UserName string `json:"userName"`
+	InPort   int    `json:"inPort"`
+}
+
+type tunnelDeletePreviewData struct {
+	TunnelID       int64                            `json:"tunnelId"`
+	TunnelName     string                           `json:"tunnelName"`
+	ForwardCount   int                              `json:"forwardCount"`
+	SampleForwards []tunnelDeleteForwardPreviewItem `json:"sampleForwards"`
+}
+
+type tunnelBatchDeletePreviewData struct {
+	TunnelCount       int                       `json:"tunnelCount"`
+	TotalForwardCount int                       `json:"totalForwardCount"`
+	Items             []tunnelDeletePreviewData `json:"items"`
+}
+
+type tunnelDeleteWithForwardsRequest struct {
+	ID             int64  `json:"id"`
+	Action         string `json:"action"`
+	TargetTunnelID int64  `json:"targetTunnelId"`
+}
+
+type tunnelBatchDeleteWithForwardsRequest struct {
+	IDs            []int64 `json:"ids"`
+	Action         string  `json:"action"`
+	TargetTunnelID int64   `json:"targetTunnelId"`
+}
+
+type tunnelDeleteWithForwardsResult struct {
+	ForwardCount        int      `json:"forwardCount"`
+	MigratedCount       int      `json:"migratedCount"`
+	DeletedForwardCount int      `json:"deletedForwardCount"`
+	PortAdjustedCount   int      `json:"portAdjustedCount"`
+	Warnings            []string `json:"warnings,omitempty"`
+}
+
+type tunnelBatchDeleteWithForwardsResult struct {
+	SuccessCount        int                  `json:"successCount"`
+	FailCount           int                  `json:"failCount"`
+	Failures            []batchFailureDetail `json:"failures,omitempty"`
+	DeletedForwardCount int                  `json:"deletedForwardCount"`
+	MigratedCount       int                  `json:"migratedCount"`
+	PortAdjustedCount   int                  `json:"portAdjustedCount"`
+	Warnings            []string             `json:"warnings,omitempty"`
+}
+
+type tunnelForwardMigrationPlan struct {
+	forward        *forwardRecord
+	oldPorts       []forwardPortRecord
+	targetTunnelID int64
+	targetPort     int
+	keptNodeIDs    []int64
+	removedNodeIDs []int64
+	portAdjusted   bool
+}
+
+func (h *Handler) tunnelDeletePreview(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodPost {
+		response.WriteJSON(w, response.ErrDefault("请求失败"))
+		return
+	}
+
+	id := idFromBody(r, w)
+	if id <= 0 {
+		return
+	}
+
+	preview, err := h.buildTunnelDeletePreview(id)
+	if err != nil {
+		if strings.Contains(err.Error(), "不存在") {
+			response.WriteJSON(w, response.ErrDefault(err.Error()))
+			return
+		}
+		response.WriteJSON(w, response.Err(-2, err.Error()))
+		return
+	}
+
+	response.WriteJSON(w, response.OK(preview))
+}
+
+func (h *Handler) tunnelBatchDeletePreview(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodPost {
+		response.WriteJSON(w, response.ErrDefault("请求失败"))
+		return
+	}
+
+	var req struct {
+		IDs []int64 `json:"ids"`
+	}
+	if err := decodeJSON(r.Body, &req); err != nil || len(req.IDs) == 0 {
+		response.WriteJSON(w, response.ErrDefault("请求参数错误"))
+		return
+	}
+
+	preview, err := h.buildTunnelBatchDeletePreview(req.IDs)
+	if err != nil {
+		if strings.Contains(err.Error(), "不存在") {
+			response.WriteJSON(w, response.ErrDefault(err.Error()))
+			return
+		}
+		response.WriteJSON(w, response.Err(-2, err.Error()))
+		return
+	}
+
+	response.WriteJSON(w, response.OK(preview))
+}
+
+func (h *Handler) tunnelDeleteWithForwards(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodPost {
+		response.WriteJSON(w, response.ErrDefault("请求失败"))
+		return
+	}
+
+	var req tunnelDeleteWithForwardsRequest
+	if err := decodeJSON(r.Body, &req); err != nil || req.ID <= 0 {
+		response.WriteJSON(w, response.ErrDefault("请求参数错误"))
+		return
+	}
+
+	action, err := normalizeTunnelDeleteAction(req.Action)
+	if err != nil {
+		response.WriteJSON(w, response.ErrDefault("请求参数错误"))
+		return
+	}
+	if action == tunnelDeleteActionReplace {
+		if _, _, authErr := userRoleFromRequest(r); authErr != nil {
+			response.WriteJSON(w, response.Err(401, "无效的token或token已过期"))
+			return
+		}
+	}
+
+	result, failures, err := h.processTunnelDeleteWithForwards(req.ID, action, req.TargetTunnelID)
+	if err != nil {
+		if err == errInvalidTunnelDeleteTarget {
+			response.WriteJSON(w, response.ErrDefault("目标隧道不能为空"))
+			return
+		}
+		if strings.Contains(err.Error(), "目标隧道不能与当前隧道相同") || strings.Contains(err.Error(), "目标隧道不存在") || strings.Contains(err.Error(), "目标隧道已禁用") || strings.Contains(err.Error(), "隧道不存在") {
+			response.WriteJSON(w, response.ErrDefault(err.Error()))
+			return
+		}
+		response.WriteJSON(w, response.Err(-2, err.Error()))
+		return
+	}
+	if len(failures) > 0 {
+		response.WriteJSON(w, response.R{
+			Code: -2,
+			Msg:  "部分规则迁移失败",
+			TS:   time.Now().UnixMilli(),
+			Data: batchOperationResult{SuccessCount: 0, FailCount: len(failures), Failures: failures},
+		})
+		return
+	}
+
+	response.WriteJSON(w, response.OK(result))
+}
+
+func (h *Handler) tunnelBatchDeleteWithForwards(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodPost {
+		response.WriteJSON(w, response.ErrDefault("请求失败"))
+		return
+	}
+
+	var req tunnelBatchDeleteWithForwardsRequest
+	if err := decodeJSON(r.Body, &req); err != nil || len(req.IDs) == 0 {
+		response.WriteJSON(w, response.ErrDefault("请求参数错误"))
+		return
+	}
+
+	action, err := normalizeTunnelDeleteAction(req.Action)
+	if err != nil {
+		response.WriteJSON(w, response.ErrDefault("请求参数错误"))
+		return
+	}
+	if action == tunnelDeleteActionReplace {
+		if _, _, authErr := userRoleFromRequest(r); authErr != nil {
+			response.WriteJSON(w, response.Err(401, "无效的token或token已过期"))
+			return
+		}
+	}
+
+	normalizedIDs := normalizeTunnelIDs(req.IDs)
+	if len(normalizedIDs) == 0 {
+		response.WriteJSON(w, response.ErrDefault("请求参数错误"))
+		return
+	}
+
+	if action == tunnelDeleteActionReplace {
+		if req.TargetTunnelID <= 0 {
+			response.WriteJSON(w, response.ErrDefault("目标隧道不能为空"))
+			return
+		}
+		for _, id := range normalizedIDs {
+			if id == req.TargetTunnelID {
+				response.WriteJSON(w, response.ErrDefault("目标隧道不能包含在删除列表中"))
+				return
+			}
+		}
+	}
+
+	result := tunnelBatchDeleteWithForwardsResult{}
+	for _, tunnelID := range normalizedIDs {
+		tunnelName, _ := h.repo.GetTunnelName(tunnelID)
+		singleResult, failures, processErr := h.processTunnelDeleteWithForwards(tunnelID, action, req.TargetTunnelID)
+		if processErr != nil {
+			result.FailCount++
+			result.Failures = appendBatchFailure(result.Failures, tunnelID, tunnelName, processErr)
+			continue
+		}
+		if len(failures) > 0 {
+			result.FailCount++
+			result.Failures = appendBatchFailureReason(
+				result.Failures,
+				tunnelID,
+				tunnelName,
+				summarizeTunnelDeleteRuleFailures(failures),
+			)
+			continue
+		}
+
+		result.SuccessCount++
+		result.DeletedForwardCount += singleResult.DeletedForwardCount
+		result.MigratedCount += singleResult.MigratedCount
+		result.PortAdjustedCount += singleResult.PortAdjustedCount
+		if len(singleResult.Warnings) > 0 {
+			result.Warnings = append(result.Warnings, singleResult.Warnings...)
+		}
+	}
+
+	response.WriteJSON(w, response.OK(result))
+}
+
+func (h *Handler) buildTunnelDeletePreview(tunnelID int64) (*tunnelDeletePreviewData, error) {
+	if _, err := h.getTunnelRecord(tunnelID); err != nil {
+		return nil, err
+	}
+
+	tunnelName, err := h.repo.GetTunnelName(tunnelID)
+	if err != nil {
+		return nil, err
+	}
+
+	forwards, err := h.listForwardsByTunnel(tunnelID)
+	if err != nil {
+		return nil, err
+	}
+
+	samples := make([]tunnelDeleteForwardPreviewItem, 0, minInt(len(forwards), tunnelDeletePreviewSampleLimit))
+	for i, forward := range forwards {
+		if i >= tunnelDeletePreviewSampleLimit {
+			break
+		}
+		ports, portsErr := h.listForwardPorts(forward.ID)
+		if portsErr != nil {
+			return nil, portsErr
+		}
+		inPort := 0
+		if len(ports) > 0 {
+			inPort = ports[0].Port
+		}
+		samples = append(samples, tunnelDeleteForwardPreviewItem{
+			ID:       forward.ID,
+			Name:     forward.Name,
+			UserID:   forward.UserID,
+			UserName: forward.UserName,
+			InPort:   inPort,
+		})
+	}
+
+	return &tunnelDeletePreviewData{
+		TunnelID:       tunnelID,
+		TunnelName:     tunnelName,
+		ForwardCount:   len(forwards),
+		SampleForwards: samples,
+	}, nil
+}
+
+func (h *Handler) buildTunnelBatchDeletePreview(ids []int64) (*tunnelBatchDeletePreviewData, error) {
+	normalizedIDs := normalizeTunnelIDs(ids)
+	items := make([]tunnelDeletePreviewData, 0, len(normalizedIDs))
+	totalForwardCount := 0
+	for _, id := range normalizedIDs {
+		preview, err := h.buildTunnelDeletePreview(id)
+		if err != nil {
+			return nil, err
+		}
+		items = append(items, *preview)
+		totalForwardCount += preview.ForwardCount
+	}
+	return &tunnelBatchDeletePreviewData{
+		TunnelCount:       len(items),
+		TotalForwardCount: totalForwardCount,
+		Items:             items,
+	}, nil
+}
+
+func normalizeTunnelDeleteAction(action string) (string, error) {
+	normalized := strings.TrimSpace(action)
+	if normalized == "" {
+		return tunnelDeleteActionDeleteForwards, nil
+	}
+	if normalized != tunnelDeleteActionReplace && normalized != tunnelDeleteActionDeleteForwards {
+		return "", errors.New("invalid tunnel delete action")
+	}
+	return normalized, nil
+}
+
+func normalizeTunnelIDs(ids []int64) []int64 {
+	seen := make(map[int64]struct{}, len(ids))
+	out := make([]int64, 0, len(ids))
+	for _, id := range ids {
+		if id <= 0 {
+			continue
+		}
+		if _, exists := seen[id]; exists {
+			continue
+		}
+		seen[id] = struct{}{}
+		out = append(out, id)
+	}
+	return out
+}
+
+func summarizeTunnelDeleteRuleFailures(failures []batchFailureDetail) string {
+	if len(failures) == 0 {
+		return "未知错误"
+	}
+	parts := make([]string, 0, minInt(len(failures), 3))
+	for i, failure := range failures {
+		if i >= 3 {
+			break
+		}
+		name := strings.TrimSpace(failure.Name)
+		if name == "" {
+			name = fmt.Sprintf("规则 #%d", failure.ID)
+		}
+		parts = append(parts, fmt.Sprintf("%s: %s", name, strings.TrimSpace(failure.Reason)))
+	}
+	if len(failures) > 3 {
+		parts = append(parts, fmt.Sprintf("另有 %d 条规则失败", len(failures)-3))
+	}
+	return strings.Join(parts, "；")
+}
+
+func (h *Handler) processTunnelDeleteWithForwards(tunnelID int64, action string, targetTunnelID int64) (tunnelDeleteWithForwardsResult, []batchFailureDetail, error) {
+	preview, err := h.buildTunnelDeletePreview(tunnelID)
+	if err != nil {
+		return tunnelDeleteWithForwardsResult{}, nil, err
+	}
+
+	result := tunnelDeleteWithForwardsResult{ForwardCount: preview.ForwardCount}
+	if preview.ForwardCount == 0 {
+		if err := h.deleteTunnelAndCleanup(tunnelID); err != nil {
+			return tunnelDeleteWithForwardsResult{}, nil, err
+		}
+		return result, nil, nil
+	}
+
+	if action == tunnelDeleteActionDeleteForwards {
+		result.DeletedForwardCount = preview.ForwardCount
+		if err := h.deleteTunnelAndCleanup(tunnelID); err != nil {
+			return tunnelDeleteWithForwardsResult{}, nil, err
+		}
+		return result, nil, nil
+	}
+
+	if targetTunnelID <= 0 {
+		return tunnelDeleteWithForwardsResult{}, nil, errInvalidTunnelDeleteTarget
+	}
+	if targetTunnelID == tunnelID {
+		return tunnelDeleteWithForwardsResult{}, nil, errors.New("目标隧道不能与当前隧道相同")
+	}
+	return h.processTunnelDeleteReplaceAction(tunnelID, targetTunnelID, result)
+}
+
+func (h *Handler) processTunnelDeleteReplaceAction(tunnelID, targetTunnelID int64, result tunnelDeleteWithForwardsResult) (tunnelDeleteWithForwardsResult, []batchFailureDetail, error) {
+	targetTunnel, err := h.getTunnelRecord(targetTunnelID)
+	if err != nil {
+		return tunnelDeleteWithForwardsResult{}, nil, errors.New("目标隧道不存在")
+	}
+	if targetTunnel.Status != 1 {
+		return tunnelDeleteWithForwardsResult{}, nil, errors.New("目标隧道已禁用")
+	}
+
+	plans, failures, err := h.planTunnelDeleteForwardMigrations(tunnelID, targetTunnelID)
+	if err != nil {
+		return tunnelDeleteWithForwardsResult{}, nil, err
+	}
+	if len(failures) > 0 {
+		return tunnelDeleteWithForwardsResult{}, failures, nil
+	}
+
+	portAdjustedCount := 0
+	warnings, execErr, execFailure := h.executeTunnelDeleteForwardMigrations(plans)
+	for _, plan := range plans {
+		if plan.portAdjusted {
+			portAdjustedCount++
+		}
+	}
+	if execErr != nil {
+		failures = append(failures, execFailure)
+		return tunnelDeleteWithForwardsResult{}, failures, nil
+	}
+
+	if err := h.deleteTunnelAndCleanup(tunnelID); err != nil {
+		h.rollbackTunnelForwardMigrationPlans(plans)
+		_ = h.redeployTunnelAndForwards(tunnelID)
+		return tunnelDeleteWithForwardsResult{}, nil, err
+	}
+
+	result.MigratedCount = len(plans)
+	result.PortAdjustedCount = portAdjustedCount
+	if len(warnings) > 0 {
+		result.Warnings = warnings
+	}
+	return result, nil, nil
+}
+
+func (h *Handler) planTunnelDeleteForwardMigrations(sourceTunnelID, targetTunnelID int64) ([]tunnelForwardMigrationPlan, []batchFailureDetail, error) {
+	forwards, err := h.listForwardsByTunnel(sourceTunnelID)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	entryNodes, err := h.tunnelEntryNodeIDs(targetTunnelID)
+	if err != nil {
+		return nil, nil, err
+	}
+	if len(entryNodes) == 0 {
+		return nil, nil, errors.New("目标隧道缺少入口节点")
+	}
+
+	plans := make([]tunnelForwardMigrationPlan, 0, len(forwards))
+	failures := make([]batchFailureDetail, 0)
+	reservedPorts := make(map[int64]map[int]bool)
+
+	for _, forward := range forwards {
+		plan, planErr := h.planSingleTunnelDeleteForwardMigration(&forward, targetTunnelID, entryNodes, reservedPorts)
+		if planErr != nil {
+			failures = appendBatchFailure(failures, forward.ID, forward.Name, planErr)
+			continue
+		}
+		plans = append(plans, plan)
+	}
+
+	return plans, failures, nil
+}
+
+func (h *Handler) planSingleTunnelDeleteForwardMigration(forward *forwardRecord, targetTunnelID int64, targetEntryNodes []int64, reservedPorts map[int64]map[int]bool) (tunnelForwardMigrationPlan, error) {
+	if forward == nil {
+		return tunnelForwardMigrationPlan{}, errors.New("转发不存在")
+	}
+
+	oldPorts, err := h.listForwardPorts(forward.ID)
+	if err != nil {
+		return tunnelForwardMigrationPlan{}, err
+	}
+	if len(oldPorts) == 0 {
+		return tunnelForwardMigrationPlan{}, errors.New("转发入口端口不存在")
+	}
+
+	minPort := h.repo.GetMinForwardPort(forward.ID)
+	targetPort := 0
+	if minPort.Valid {
+		targetPort = int(minPort.Int64)
+	}
+	if targetPort <= 0 {
+		targetPort = h.pickTunnelPort(targetTunnelID)
+	}
+	if targetPort <= 0 {
+		targetPort = 10000
+	}
+
+	hasCustomInIP := false
+	for _, oldPort := range oldPorts {
+		if strings.TrimSpace(oldPort.InIP) != "" {
+			hasCustomInIP = true
+			break
+		}
+	}
+	if hasCustomInIP && len(targetEntryNodes) > 1 {
+		return tunnelForwardMigrationPlan{}, errors.New("多入口隧道的转发不支持保留自定义监听IP，请先手动调整该规则")
+	}
+
+	for _, nodeID := range targetEntryNodes {
+		node, nodeErr := h.getNodeRecord(nodeID)
+		if nodeErr != nil {
+			return tunnelForwardMigrationPlan{}, nodeErr
+		}
+		if err := validateRemoteNodePort(node, targetPort); err != nil {
+			return tunnelForwardMigrationPlan{}, err
+		}
+		if err := validateLocalNodePort(node, targetPort); err != nil {
+			return tunnelForwardMigrationPlan{}, err
+		}
+		if err := h.validateForwardPortAvailability(node, targetPort, forward.ID); err != nil {
+			return tunnelForwardMigrationPlan{}, err
+		}
+		if reservedOnNode, ok := reservedPorts[nodeID]; ok && reservedOnNode[targetPort] {
+			return tunnelForwardMigrationPlan{}, fmt.Errorf("目标隧道入口节点端口 %d 已被本次迁移中的其他规则占用", targetPort)
+		}
+	}
+
+	for _, nodeID := range targetEntryNodes {
+		reservedOnNode := reservedPorts[nodeID]
+		if reservedOnNode == nil {
+			reservedOnNode = make(map[int]bool)
+			reservedPorts[nodeID] = reservedOnNode
+		}
+		reservedOnNode[targetPort] = true
+	}
+
+	oldNodeIDs := forwardPortNodeIDs(oldPorts)
+	newNodeIDs := uniqueInt64s(targetEntryNodes)
+	removedNodeIDs := diffInt64s(oldNodeIDs, newNodeIDs)
+	keptNodeIDs := diffInt64s(oldNodeIDs, removedNodeIDs)
+
+	previousPort := 0
+	if len(oldPorts) > 0 {
+		previousPort = oldPorts[0].Port
+	}
+
+	return tunnelForwardMigrationPlan{
+		forward:        forward,
+		oldPorts:       oldPorts,
+		targetTunnelID: targetTunnelID,
+		targetPort:     targetPort,
+		keptNodeIDs:    keptNodeIDs,
+		removedNodeIDs: removedNodeIDs,
+		portAdjusted:   previousPort > 0 && previousPort != targetPort,
+	}, nil
+}
+
+func (h *Handler) executeTunnelDeleteForwardMigrations(plans []tunnelForwardMigrationPlan) ([]string, error, batchFailureDetail) {
+	warnings := make([]string, 0)
+	completed := make([]tunnelForwardMigrationPlan, 0, len(plans))
+
+	for _, plan := range plans {
+		migrationWarnings, err := h.applyTunnelDeleteForwardMigration(plan)
+		if err != nil {
+			h.rollbackTunnelForwardMigrationPlans(completed)
+			return warnings, err, batchFailureDetail{ID: plan.forward.ID, Name: plan.forward.Name, Reason: normalizeBatchFailureReason(errString(err))}
+		}
+		warnings = append(warnings, migrationWarnings...)
+		completed = append(completed, plan)
+	}
+
+	return warnings, nil, batchFailureDetail{}
+}
+
+func (h *Handler) applyTunnelDeleteForwardMigration(plan tunnelForwardMigrationPlan) ([]string, error) {
+	if plan.forward == nil {
+		return nil, errors.New("转发不存在")
+	}
+
+	if err := h.repo.UpdateForwardTunnel(plan.forward.ID, plan.targetTunnelID, time.Now().UnixMilli()); err != nil {
+		return nil, err
+	}
+	if err := h.replaceForwardPorts(plan.forward.ID, plan.targetTunnelID, plan.targetPort, ""); err != nil {
+		h.rollbackForwardMutation(plan.forward, plan.oldPorts)
+		return nil, err
+	}
+
+	updatedForward, err := h.getForwardRecord(plan.forward.ID)
+	if err != nil {
+		h.rollbackForwardMutation(plan.forward, plan.oldPorts)
+		return nil, err
+	}
+
+	warnings := make([]string, 0)
+	if len(plan.keptNodeIDs) > 0 {
+		for _, nodeID := range plan.keptNodeIDs {
+			if delErr := h.deleteForwardServicesOnNodeBatch(plan.forward, nodeID); delErr != nil {
+				nodeLabel := fmt.Sprintf("%d", nodeID)
+				if n, nErr := h.getNodeRecord(nodeID); nErr == nil && n != nil && strings.TrimSpace(n.Name) != "" {
+					nodeLabel = strings.TrimSpace(n.Name)
+				}
+				warnings = append(warnings, fmt.Sprintf("节点 %s 清理旧转发监听失败: %v", nodeLabel, delErr))
+			}
+		}
+		time.Sleep(tunnelServiceBindRetryDelay)
+	}
+
+	syncWarnings, err := h.syncForwardServicesWithWarnings(updatedForward, "UpdateService", true)
+	if err != nil {
+		h.rollbackForwardMutation(plan.forward, plan.oldPorts)
+		return nil, err
+	}
+	warnings = append(warnings, syncWarnings...)
+
+	if len(plan.removedNodeIDs) > 0 {
+		for _, nodeID := range plan.removedNodeIDs {
+			if delErr := h.deleteForwardServicesOnNodeBatch(plan.forward, nodeID); delErr != nil {
+				nodeLabel := fmt.Sprintf("%d", nodeID)
+				if n, nErr := h.getNodeRecord(nodeID); nErr == nil && n != nil && strings.TrimSpace(n.Name) != "" {
+					nodeLabel = strings.TrimSpace(n.Name)
+				}
+				warnings = append(warnings, fmt.Sprintf("节点 %s 清理旧隧道残留服务失败: %v", nodeLabel, delErr))
+			}
+		}
+	}
+
+	return warnings, nil
+}
+
+func (h *Handler) rollbackTunnelForwardMigrationPlans(plans []tunnelForwardMigrationPlan) {
+	for i := len(plans) - 1; i >= 0; i-- {
+		plan := plans[i]
+		h.rollbackForwardMutation(plan.forward, plan.oldPorts)
+	}
+}
+
+func (h *Handler) deleteTunnelAndCleanup(tunnelID int64) error {
+	h.cleanupTunnelRuntime(tunnelID)
+	h.cleanupFederationRuntime(tunnelID)
+	if err := h.deleteTunnelByID(tunnelID); err != nil {
+		return err
+	}
+	return nil
+}
+
+func minInt(a, b int) int {
+	if a < b {
+		return a
+	}
+	return b
+}

go-backend/internal/http/handler/tunnel_entry_sqlite_test.go

@@ -0,0 +1,104 @@
+package handler
+
+import (
+	"path/filepath"
+	"testing"
+	"time"
+
+	"go-backend/internal/store/repo"
+)
+
+func TestValidateTunnelEntryPortConflictsForNewEntriesDoesNotBlockOnSQLiteTx(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 := &Handler{repo: r}
+	now := time.Now().UnixMilli()
+
+	if err := r.DB().Exec(`
+		INSERT INTO node(name, secret, server_ip, port, created_time, status, tcp_listen_addr, udp_listen_addr, is_remote)
+		VALUES
+			('entry-old', 'secret-old', '10.0.0.1', '12000-12010', ?, 1, '[::]', '[::]', 0),
+			('entry-new', 'secret-new', '10.0.0.2', '12000-12010', ?, 1, '[::]', '[::]', 0)
+	`, now, now).Error; err != nil {
+		t.Fatalf("insert nodes: %v", err)
+	}
+	var oldEntryID, newEntryID int64
+	if err := r.DB().Raw(`SELECT id FROM node WHERE name = 'entry-old'`).Scan(&oldEntryID).Error; err != nil {
+		t.Fatalf("load old entry id: %v", err)
+	}
+	if err := r.DB().Raw(`SELECT id FROM node WHERE name = 'entry-new'`).Scan(&newEntryID).Error; err != nil {
+		t.Fatalf("load new entry id: %v", err)
+	}
+
+	if err := r.DB().Exec(`
+		INSERT INTO tunnel(name, traffic_ratio, type, protocol, flow, created_time, updated_time, status, inx, ip_preference)
+		VALUES('sqlite-tunnel', 1, 1, 'tls', 1, ?, ?, 1, 1, '')
+	`, now, now).Error; err != nil {
+		t.Fatalf("insert tunnel: %v", err)
+	}
+	var tunnelID int64
+	if err := r.DB().Raw(`SELECT id FROM tunnel WHERE name = 'sqlite-tunnel'`).Scan(&tunnelID).Error; err != nil {
+		t.Fatalf("load tunnel id: %v", err)
+	}
+
+	if err := r.DB().Exec(`
+		INSERT INTO chain_tunnel(tunnel_id, chain_type, node_id, inx, protocol)
+		VALUES(?, '1', ?, 1, 'tls')
+	`, tunnelID, oldEntryID).Error; err != nil {
+		t.Fatalf("insert chain_tunnel: %v", err)
+	}
+
+	if err := r.DB().Exec(`
+		INSERT INTO forward(user_id, user_name, name, tunnel_id, remote_addr, strategy, created_time, updated_time, status, inx)
+		VALUES(1, 'tester', 'forward-a', ?, '127.0.0.1:8080', 'fifo', ?, ?, 1, 1)
+	`, tunnelID, now, now).Error; err != nil {
+		t.Fatalf("insert forward: %v", err)
+	}
+	var forwardID int64
+	if err := r.DB().Raw(`SELECT id FROM forward WHERE name = 'forward-a'`).Scan(&forwardID).Error; err != nil {
+		t.Fatalf("load forward id: %v", err)
+	}
+
+	if err := r.DB().Exec(`
+		INSERT INTO forward_port(forward_id, node_id, port)
+		VALUES(?, ?, 12001)
+	`, forwardID, oldEntryID).Error; err != nil {
+		t.Fatalf("insert forward_port: %v", err)
+	}
+
+	tx := r.BeginTx()
+	if tx == nil {
+		t.Fatal("begin tx: nil transaction")
+	}
+	if tx.Error != nil {
+		t.Fatalf("begin tx: %v", tx.Error)
+	}
+
+	errCh := make(chan error, 1)
+	doneCh := make(chan struct{})
+	go func() {
+		defer close(doneCh)
+		errCh <- h.validateTunnelEntryPortConflictsForNewEntriesTx(tx, tunnelID, []int64{oldEntryID}, []int64{oldEntryID, newEntryID})
+	}()
+
+	select {
+	case err := <-errCh:
+		if err != nil {
+			_ = tx.Rollback().Error
+			t.Fatalf("unexpected validation error: %v", err)
+		}
+	case <-time.After(500 * time.Millisecond):
+		_ = tx.Rollback().Error
+		<-doneCh
+		t.Fatal("validation blocked while transaction was open on sqlite")
+	}
+
+	if err := tx.Rollback().Error; err != nil {
+		t.Fatalf("rollback tx: %v", err)
+	}
+}

go-backend/internal/http/handler/tunnel_metrics_ingestion.go

@@ -0,0 +1,120 @@
+package handler
+
+import (
+	"log"
+	"strings"
+	"time"
+
+	"go-backend/internal/store/model"
+)
+
+type tunnelTrafficDelta struct {
+	bytesIn  int64
+	bytesOut int64
+}
+
+func unixMilliBucketMinute(nowMs int64) int64 {
+	if nowMs <= 0 {
+		return 0
+	}
+	const minuteMs = int64(time.Minute / time.Millisecond)
+	return nowMs - (nowMs % minuteMs)
+}
+
+func (h *Handler) recordTunnelMetricsFromFlowItems(nodeID int64, items []flowItem, nowMs int64) {
+	if h == nil || h.repo == nil {
+		return
+	}
+	if nodeID <= 0 || len(items) == 0 {
+		return
+	}
+
+	bucketTs := unixMilliBucketMinute(nowMs)
+	if bucketTs <= 0 {
+		return
+	}
+
+	forwardDeltas := make(map[int64]tunnelTrafficDelta)
+	var skippedParse, skippedZero int
+	for _, item := range items {
+		name := strings.TrimSpace(item.N)
+		if name == "" || name == "web_api" {
+			continue
+		}
+		forwardID, _, _, ok := parseFlowServiceIDs(name)
+		if !ok {
+			skippedParse++
+			continue
+		}
+		if item.D == 0 && item.U == 0 {
+			skippedZero++
+			continue
+		}
+		d := forwardDeltas[forwardID]
+		d.bytesIn += item.D
+		d.bytesOut += item.U
+		forwardDeltas[forwardID] = d
+	}
+	if len(forwardDeltas) == 0 {
+		if len(items) > 0 {
+			log.Printf("monitoring debug op=tunnel_metric.no_forward_deltas node_id=%d items=%d skipped_parse=%d skipped_zero=%d", nodeID, len(items), skippedParse, skippedZero)
+		}
+		return
+	}
+
+	forwardIDs := make([]int64, 0, len(forwardDeltas))
+	for id := range forwardDeltas {
+		forwardIDs = append(forwardIDs, id)
+	}
+
+	forwardTunnelMap, err := h.repo.MapForwardIDsToTunnelIDs(forwardIDs)
+	if err != nil {
+		log.Printf("monitoring write skipped op=tunnel_metric.map_forward_to_tunnel node_id=%d err=%v", nodeID, err)
+		return
+	}
+	if len(forwardTunnelMap) == 0 {
+		log.Printf("monitoring debug op=tunnel_metric.no_tunnel_map node_id=%d forward_ids=%v", nodeID, forwardIDs)
+		return
+	}
+
+	tunnelAgg := make(map[int64]tunnelTrafficDelta)
+	for forwardID, delta := range forwardDeltas {
+		tunnelID := forwardTunnelMap[forwardID]
+		if tunnelID <= 0 {
+			continue
+		}
+		a := tunnelAgg[tunnelID]
+		a.bytesIn += delta.bytesIn
+		a.bytesOut += delta.bytesOut
+		tunnelAgg[tunnelID] = a
+	}
+	if len(tunnelAgg) == 0 {
+		return
+	}
+
+	metrics := make([]*model.TunnelMetric, 0, len(tunnelAgg))
+	for tunnelID, delta := range tunnelAgg {
+		if delta.bytesIn == 0 && delta.bytesOut == 0 {
+			continue
+		}
+		metrics = append(metrics, &model.TunnelMetric{
+			TunnelID:     tunnelID,
+			NodeID:       nodeID,
+			Timestamp:    bucketTs,
+			BytesIn:      delta.bytesIn,
+			BytesOut:     delta.bytesOut,
+			Connections:  0,
+			Errors:       0,
+			AvgLatencyMs: 0,
+		})
+	}
+	if len(metrics) == 0 {
+		return
+	}
+
+	if err := h.repo.UpsertTunnelMetricBuckets(metrics); err != nil {
+		log.Printf("monitoring write failed op=tunnel_metric.upsert_buckets node_id=%d bucket_ts=%d count=%d err=%v", nodeID, bucketTs, len(metrics), err)
+	} else {
+		log.Printf("monitoring ok op=tunnel_metric.upsert_buckets node_id=%d bucket_ts=%d count=%d", nodeID, bucketTs, len(metrics))
+	}
+}

go-backend/internal/http/handler/tunnel_quality_prober.go

@@ -0,0 +1,452 @@
+package handler
+
+import (
+	"context"
+	"encoding/json"
+	"log"
+	"sync"
+	"sync/atomic"
+	"time"
+
+	"go-backend/internal/store/model"
+)
+
+const (
+	tunnelQualityProbeInterval  = 1 * time.Second
+	tunnelQualityProbeTimeout   = 8 * time.Second
+	tunnelQualityPingTimeoutMs  = 5000
+	tunnelQualityRetention      = 24 * time.Hour // keep 24h of history
+	tunnelQualityPruneInterval  = 10 * time.Minute
+	tunnelQualityReportInterval = 30 * time.Second // DB save interval
+)
+
+type TunnelQualityHop struct {
+	FromNodeID   int64   `json:"fromNodeId"`
+	FromNodeName string  `json:"fromNodeName"`
+	ToNodeID     int64   `json:"toNodeId"`
+	ToNodeName   string  `json:"toNodeName"`
+	Latency      float64 `json:"latency"`
+	Loss         float64 `json:"loss"`
+	TargetIP     string  `json:"targetIp,omitempty"`
+	TargetPort   int     `json:"targetPort,omitempty"`
+}
+
+// tunnelQualitySnapshot is the in-memory latest probe result for a tunnel.
+type tunnelQualitySnapshot struct {
+	TunnelID           int64   `json:"tunnelId"`
+	EntryToExitLatency float64 `json:"entryToExitLatency"`
+	ExitToBingLatency  float64 `json:"exitToBingLatency"`
+	EntryToExitLoss    float64 `json:"entryToExitLoss"`
+	ExitToBingLoss     float64 `json:"exitToBingLoss"`
+	Success            bool    `json:"success"`
+	ErrorMessage       string  `json:"errorMessage,omitempty"`
+	Timestamp          int64   `json:"timestamp"`
+	ChainDetails       string  `json:"chainDetails,omitempty"`
+
+	// internal fields for db reporting
+	lastDBWrite int64 `json:"-"`
+}
+
+// tunnelQualityProber runs periodic TCP ping probes against all enabled tunnels.
+// Design mirrors health.Checker: background goroutine with worker pool + scheduled cleanup.
+type tunnelQualityProber struct {
+	handler   *Handler
+	cache     sync.Map // tunnelID (int64) → *tunnelQualitySnapshot
+	ctx       context.Context
+	cancel    context.CancelFunc
+	interval  time.Duration
+	lastPrune int64
+	probing   int32 // atomic flag: 1 = probeAll running, 0 = idle
+}
+
+// newTunnelQualityProber creates a new prober (not yet running).
+func newTunnelQualityProber(h *Handler) *tunnelQualityProber {
+	return &tunnelQualityProber{
+		handler:  h,
+		interval: tunnelQualityProbeInterval,
+	}
+}
+
+// Start launches the background probe loop (call from jobs.go).
+func (p *tunnelQualityProber) Start(ctx context.Context) {
+	// Use the provided context so we stop with other background jobs.
+	p.ctx, p.cancel = context.WithCancel(ctx)
+	p.loop()
+}
+
+// Stop halts the background probe loop.
+func (p *tunnelQualityProber) Stop() {
+	if p == nil || p.cancel == nil {
+		return
+	}
+
+	p.cancel()
+}
+
+// GetAll returns all cached quality snapshots (latest per tunnel).
+func (p *tunnelQualityProber) GetAll() []tunnelQualitySnapshot {
+	var items []tunnelQualitySnapshot
+	p.cache.Range(func(_, value interface{}) bool {
+		if snap, ok := value.(*tunnelQualitySnapshot); ok {
+			items = append(items, *snap)
+		}
+		return true
+	})
+	return items
+}
+
+func (p *tunnelQualityProber) loop() {
+	// Initial delay to let the system boot up
+	select {
+	case <-time.After(5 * time.Second):
+	case <-p.ctx.Done():
+		return
+	}
+
+	// Run once immediately
+	p.probeAll()
+
+	ticker := time.NewTicker(p.interval)
+	defer ticker.Stop()
+
+	for {
+		select {
+		case <-p.ctx.Done():
+			return
+		case <-ticker.C:
+			p.probeAll()
+			p.maybePrune()
+		}
+	}
+}
+
+func (p *tunnelQualityProber) isEnabled() bool {
+	if p == nil || p.handler == nil {
+		return true
+	}
+
+	return p.handler.isTunnelQualityMonitoringEnabled()
+}
+
+// maybePrune deletes old quality rows periodically (mirrors PruneServiceMonitorResults).
+func (p *tunnelQualityProber) maybePrune() {
+	if !p.isEnabled() {
+		return
+	}
+
+	now := time.Now().UnixMilli()
+	if p.lastPrune > 0 && now-p.lastPrune < int64(tunnelQualityPruneInterval/time.Millisecond) {
+		return
+	}
+	p.lastPrune = now
+
+	h := p.handler
+	if h == nil || h.repo == nil {
+		return
+	}
+
+	cutoff := now - int64(tunnelQualityRetention/time.Millisecond)
+	if err := h.repo.PruneTunnelQualityResults(cutoff); err != nil {
+		log.Printf("tunnel_quality_prober: prune err=%v", err)
+	}
+}
+
+func (p *tunnelQualityProber) probeAll() {
+	if !p.isEnabled() {
+		return
+	}
+
+	// Skip if previous probe round is still running (interval < timeout guard)
+	if !atomic.CompareAndSwapInt32(&p.probing, 0, 1) {
+		return
+	}
+	defer atomic.StoreInt32(&p.probing, 0)
+
+	h := p.handler
+	if h == nil || h.repo == nil {
+		return
+	}
+
+	tunnelIDs, err := h.repo.ListEnabledTunnelIDs()
+	if err != nil {
+		log.Printf("tunnel_quality_prober: list enabled tunnels err=%v", err)
+		return
+	}
+	if len(tunnelIDs) == 0 {
+		return
+	}
+
+	// Probe tunnels concurrently with a worker limit
+	// (mirrors health.Checker worker pool pattern)
+	const maxWorkers = 20
+	sem := make(chan struct{}, maxWorkers)
+	var wg sync.WaitGroup
+
+	for _, tunnelID := range tunnelIDs {
+		select {
+		case <-p.ctx.Done():
+			return
+		default:
+		}
+
+		wg.Add(1)
+		sem <- struct{}{}
+		go func(tid int64) {
+			defer wg.Done()
+			defer func() { <-sem }()
+			p.probeTunnel(tid)
+		}(tunnelID)
+	}
+	wg.Wait()
+}
+
+func (p *tunnelQualityProber) probeTunnel(tunnelID int64) {
+	h := p.handler
+	if h == nil || h.repo == nil {
+		return
+	}
+
+	now := time.Now().UnixMilli()
+	snap := &tunnelQualitySnapshot{
+		TunnelID:  tunnelID,
+		Timestamp: now,
+	}
+
+	// Get tunnel chain info
+	tunnel, err := h.getTunnelRecord(tunnelID)
+	if err != nil {
+		snap.ErrorMessage = "隧道不存在"
+		p.storeResult(snap)
+		return
+	}
+
+	chainRows, err := h.listChainNodesForTunnel(tunnelID)
+	if err != nil || len(chainRows) == 0 {
+		snap.ErrorMessage = "隧道配置不完整"
+		p.storeResult(snap)
+		return
+	}
+
+	ipPreference := h.repo.GetTunnelIPPreference(tunnelID)
+	inNodes, midNodesGrouped, outNodes := splitChainNodeGroups(chainRows)
+
+	options := diagnosisExecOptions{
+		commandTimeout: tunnelQualityProbeTimeout,
+		pingTimeoutMS:  tunnelQualityPingTimeoutMs,
+		timeoutMessage: "探测超时",
+	}
+
+	switch tunnel.Type {
+	case 1:
+		// Port forwarding: entry → Bing only
+		if len(inNodes) > 0 {
+			lat, loss, err := p.tcpPingNode(inNodes[0].NodeID, "www.bing.com", 443, options)
+			if err == nil {
+				snap.ExitToBingLatency = lat
+				snap.ExitToBingLoss = loss
+				snap.Success = true
+			} else {
+				snap.ErrorMessage = err.Error()
+			}
+		}
+	case 2:
+		// Tunnel forwarding: entry → exit + exit → Bing
+		probeOK := true
+
+		if len(inNodes) > 0 && len(outNodes) > 0 {
+			var hops []TunnelQualityHop
+			var totalLat float64
+			remainingSuccessProb := 1.0
+
+			nodesInPath := make([]chainNodeRecord, 0, 2+len(midNodesGrouped))
+			nodesInPath = append(nodesInPath, inNodes[0])
+			for _, midGroup := range midNodesGrouped {
+				if len(midGroup) > 0 {
+					nodesInPath = append(nodesInPath, midGroup[0])
+				}
+			}
+			nodesInPath = append(nodesInPath, outNodes[0])
+
+			for i := 0; i < len(nodesInPath)-1; i++ {
+				source := nodesInPath[i]
+				target := nodesInPath[i+1]
+
+				hop := TunnelQualityHop{
+					FromNodeID:   source.NodeID,
+					FromNodeName: source.NodeName,
+					ToNodeID:     target.NodeID,
+					ToNodeName:   target.NodeName,
+				}
+
+				targetNode, nodeErr := h.getNodeRecord(target.NodeID)
+				if nodeErr != nil || targetNode == nil {
+					snap.ErrorMessage = "节点 " + target.NodeName + " 不可用"
+					probeOK = false
+					hop.Latency = -1
+					hop.Loss = 100
+					hops = append(hops, hop)
+					break
+				}
+				
+				fromNode, _ := h.getNodeRecord(source.NodeID)
+				targetIP, targetPort, resolveErr := resolveChainProbeTarget(fromNode, targetNode, target.Port, ipPreference, target.ConnectIP)
+				if resolveErr != nil {
+					snap.ErrorMessage = "解析节点 " + target.NodeName + " 失败: " + resolveErr.Error()
+					probeOK = false
+					hop.Latency = -1
+					hop.Loss = 100
+					hops = append(hops, hop)
+					break
+				}
+
+				hop.TargetIP = targetIP
+				hop.TargetPort = targetPort
+
+				lat, loss, err := p.tcpPingNode(source.NodeID, targetIP, targetPort, options)
+				if err == nil {
+					hop.Latency = lat
+					hop.Loss = loss
+					totalLat += lat
+					remainingSuccessProb *= (1.0 - loss/100.0)
+					hops = append(hops, hop)
+				} else {
+					probeOK = false
+					hop.Latency = -1
+					hop.Loss = 100
+					hops = append(hops, hop)
+					if snap.ErrorMessage == "" {
+						snap.ErrorMessage = err.Error()
+					}
+					break
+				}
+			}
+
+			if probeOK {
+				snap.EntryToExitLatency = totalLat
+				snap.EntryToExitLoss = (1.0 - remainingSuccessProb) * 100.0
+			} else {
+				snap.EntryToExitLatency = -1
+				snap.EntryToExitLoss = 100
+			}
+
+			if len(hops) > 0 {
+				if b, err := json.Marshal(hops); err == nil {
+					snap.ChainDetails = string(b)
+				}
+			}
+		}
+
+		// Exit → Bing
+		if len(outNodes) > 0 {
+			lat, loss, err := p.tcpPingNode(outNodes[0].NodeID, "www.bing.com", 443, options)
+			if err == nil {
+				snap.ExitToBingLatency = lat
+				snap.ExitToBingLoss = loss
+			} else {
+				if snap.ErrorMessage == "" {
+					snap.ErrorMessage = err.Error()
+				}
+				probeOK = false
+			}
+		}
+
+		snap.Success = probeOK
+	default:
+		// Unknown type: entry → Bing
+		if len(inNodes) > 0 {
+			lat, loss, err := p.tcpPingNode(inNodes[0].NodeID, "www.bing.com", 443, options)
+			if err == nil {
+				snap.ExitToBingLatency = lat
+				snap.ExitToBingLoss = loss
+				snap.Success = true
+			} else {
+				snap.ErrorMessage = err.Error()
+			}
+		}
+	}
+
+	p.storeResult(snap)
+}
+
+func (p *tunnelQualityProber) tcpPingNode(nodeID int64, ip string, port int, options diagnosisExecOptions) (latency float64, loss float64, err error) {
+	h := p.handler
+	if h == nil {
+		return 0, 100, nil
+	}
+
+	node, nodeErr := h.getNodeRecord(nodeID)
+	if nodeErr != nil {
+		return 0, 100, nodeErr
+	}
+
+	var pingData map[string]interface{}
+	var pingErr error
+	if node != nil && node.IsRemote == 1 {
+		pingData, pingErr = h.tcpPingViaRemoteNode(node, ip, port, options)
+	} else {
+		pingData, pingErr = h.tcpPingViaNode(nodeID, ip, port, options)
+	}
+	if pingErr != nil {
+		return 0, 100, pingErr
+	}
+
+	avgTime := asFloat(pingData["averageTime"], 0)
+	packetLoss := asFloat(pingData["packetLoss"], 100)
+
+	return avgTime, packetLoss, nil
+}
+
+func (p *tunnelQualityProber) storeResult(snap *tunnelQualitySnapshot) {
+	if snap == nil {
+		return
+	}
+
+	// Update in-memory cache (latest per tunnel)
+	// Retain the lastDBWrite timestamp if it exists, so we only DB write every 30s
+	var lastWrite int64
+	if existing, ok := p.cache.Load(snap.TunnelID); ok {
+		if eg, ok := existing.(*tunnelQualitySnapshot); ok {
+			lastWrite = eg.lastDBWrite
+		}
+	}
+	snap.lastDBWrite = lastWrite
+
+	now := time.Now().UnixMilli()
+	writeToDB := false
+	if now-snap.lastDBWrite >= int64(tunnelQualityReportInterval/time.Millisecond) {
+		writeToDB = true
+		snap.lastDBWrite = now
+	}
+
+	p.cache.Store(snap.TunnelID, snap)
+
+	if !writeToDB {
+		return
+	}
+
+	// Persist to database (history)
+	h := p.handler
+	if h == nil || h.repo == nil {
+		return
+	}
+
+	successInt := 0
+	if snap.Success {
+		successInt = 1
+	}
+
+	q := &model.TunnelQuality{
+		TunnelID:           snap.TunnelID,
+		EntryToExitLatency: snap.EntryToExitLatency,
+		ExitToBingLatency:  snap.ExitToBingLatency,
+		EntryToExitLoss:    snap.EntryToExitLoss,
+		ExitToBingLoss:     snap.ExitToBingLoss,
+		Success:            successInt,
+		ErrorMessage:       snap.ErrorMessage,
+		Timestamp:          snap.Timestamp,
+		ChainDetails:       snap.ChainDetails,
+	}
+	if err := h.repo.InsertTunnelQuality(q); err != nil {
+		log.Printf("tunnel_quality_prober: insert db err=%v tunnel_id=%d", err, snap.TunnelID)
+	}
+}

go-backend/internal/http/handler/upgrade.go

@@ -15,7 +15,6 @@ import (
 
 const (
 	githubRepo     = "Sagit-chu/flvx"
-	githubProxy    = "https://gcode.hostcentral.cc"
 	githubAPIBase  = "https://api.github.com"
 	githubHTMLBase = "https://github.com"
 	upgradeTimeout = 5 * time.Minute
@@ -23,6 +22,9 @@ const (
 
 	releaseChannelStable = "stable"
 	releaseChannelDev    = "dev"
+
+	defaultGithubProxyEnabled = true
+	defaultGithubProxyURL     = "https://gcode.hostcentral.cc"
 )
 
 var (
@@ -70,6 +72,39 @@ func releaseChannelLabel(channel string) string {
 	return "正式版"
 }
 
+func (h *Handler) getGithubProxyConfig() (enabled bool, proxyURL string) {
+	enabled = defaultGithubProxyEnabled
+	proxyURL = defaultGithubProxyURL
+
+	if h == nil || h.repo == nil {
+		return
+	}
+
+	if enabledCfg, err := h.repo.GetConfigByName("github_proxy_enabled"); err == nil && enabledCfg != nil {
+		enabled = enabledCfg.Value != "false"
+	}
+
+	if urlCfg, err := h.repo.GetConfigByName("github_proxy_url"); err == nil && urlCfg != nil && urlCfg.Value != "" {
+		proxyURL = strings.TrimSpace(urlCfg.Value)
+		if !strings.HasPrefix(proxyURL, "http://") && !strings.HasPrefix(proxyURL, "https://") {
+			proxyURL = "https://" + proxyURL
+		}
+		proxyURL = strings.TrimSuffix(proxyURL, "/")
+	}
+
+	return
+}
+
+func (h *Handler) buildGithubDownloadURL(version, filename string) string {
+	enabled, proxyURL := h.getGithubProxyConfig()
+	base := fmt.Sprintf("%s/%s/releases/download/%s/%s", githubHTMLBase, githubRepo, version, filename)
+
+	if enabled {
+		return fmt.Sprintf("%s/%s", proxyURL, base)
+	}
+	return base
+}
+
 func fetchGitHubReleases(perPage int) ([]githubRelease, error) {
 	if perPage <= 0 {
 		perPage = 20
@@ -149,14 +184,8 @@ func (h *Handler) nodeUpgrade(w http.ResponseWriter, r *http.Request) {
 		}
 	}
 
-	downloadURL := fmt.Sprintf(
-		githubProxy+"/%s/%s/releases/download/%s/gost-{ARCH}",
-		githubHTMLBase, githubRepo, version,
-	)
-	checksumURL := fmt.Sprintf(
-		githubProxy+"/%s/%s/releases/download/%s/gost-{ARCH}.sha256",
-		githubHTMLBase, githubRepo, version,
-	)
+	downloadURL := h.buildGithubDownloadURL(version, "gost-{ARCH}")
+	checksumURL := h.buildGithubDownloadURL(version, "gost-{ARCH}.sha256")
 
 	result, err := h.wsServer.SendCommand(req.ID, "UpgradeAgent", map[string]interface{}{
 		"downloadUrl": downloadURL,
@@ -213,14 +242,8 @@ func (h *Handler) nodeBatchUpgrade(w http.ResponseWriter, r *http.Request) {
 		}
 	}
 
-	downloadURL := fmt.Sprintf(
-		githubProxy+"/%s/%s/releases/download/%s/gost-{ARCH}",
-		githubHTMLBase, githubRepo, version,
-	)
-	checksumURL := fmt.Sprintf(
-		githubProxy+"/%s/%s/releases/download/%s/gost-{ARCH}.sha256",
-		githubHTMLBase, githubRepo, version,
-	)
+	downloadURL := h.buildGithubDownloadURL(version, "gost-{ARCH}")
+	checksumURL := h.buildGithubDownloadURL(version, "gost-{ARCH}.sha256")
 
 	type upgradeResult struct {
 		ID      int64  `json:"id"`

go-backend/internal/http/handler/user_quota.go

@@ -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
+}

go-backend/internal/http/middleware/auth.go

@@ -101,6 +101,10 @@ func shouldSkip(path string) bool {
 }
 
 func requiresAdmin(path string) bool {
+	if strings.HasPrefix(path, "/api/v1/monitor/permission/") {
+		return true
+	}
+
 	if strings.HasPrefix(path, "/api/v1/group/") {
 		return true
 	}

go-backend/internal/license/keygen.go

@@ -0,0 +1,187 @@
+package license
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"io"
+	"net/http"
+	"strings"
+	"time"
+)
+
+type KeygenClient struct {
+	AccountID  string
+	Token      string
+	HTTPClient *http.Client
+}
+
+func NewKeygenClient(accountID, token string) *KeygenClient {
+	return &KeygenClient{
+		AccountID: accountID,
+		Token:     token,
+		HTTPClient: &http.Client{Timeout: 10 * time.Second},
+	}
+}
+
+type ValidateResponse struct {
+	Meta struct {
+		Valid bool   `json:"valid"`
+		Code  string `json:"code"`
+	} `json:"meta"`
+	Data struct {
+		ID         string `json:"id"`
+		Attributes struct {
+			Expiry string `json:"expiry"`
+		} `json:"attributes"`
+	} `json:"data"`
+}
+
+type ActivateMachineRequest struct {
+	Data struct {
+		Type       string `json:"type"`
+		Attributes struct {
+			Fingerprint string `json:"fingerprint"`
+		} `json:"attributes"`
+		Relationships struct {
+			License struct {
+				Data struct {
+					Type string `json:"type"`
+					ID   string `json:"id"`
+				} `json:"data"`
+			} `json:"license"`
+		} `json:"relationships"`
+	} `json:"data"`
+}
+
+func (c *KeygenClient) ValidateKeyWithFingerprint(key string, fingerprint string) (*ValidateResponse, error) {
+	url := fmt.Sprintf("https://api.keygen.sh/v1/accounts/%s/licenses/actions/validate-key", c.AccountID)
+
+	meta := map[string]interface{}{
+		"key": key,
+	}
+
+	if fingerprint != "" {
+		meta["scope"] = map[string]interface{}{
+			"fingerprint": fingerprint,
+		}
+	}
+
+	reqBody := map[string]interface{}{
+		"meta": meta,
+	}
+
+	bodyBytes, _ := json.Marshal(reqBody)
+
+	req, _ := http.NewRequest(http.MethodPost, url, bytes.NewBuffer(bodyBytes))
+	req.Header.Set("Content-Type", "application/json")
+	req.Header.Set("Accept", "application/json")
+	if c.Token != "" {
+		if !strings.HasPrefix(c.Token, "Bearer ") && !strings.HasPrefix(c.Token, "License ") {
+			req.Header.Set("Authorization", "License "+c.Token)
+		} else {
+			req.Header.Set("Authorization", c.Token)
+		}
+	}
+
+	resp, err := c.HTTPClient.Do(req)
+	if err != nil {
+		return nil, err
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != http.StatusOK {
+		return nil, fmt.Errorf("keygen api error: status %d", resp.StatusCode)
+	}
+
+	var valResp ValidateResponse
+	if err := json.NewDecoder(resp.Body).Decode(&valResp); err != nil {
+		return nil, err
+	}
+
+	return &valResp, nil
+}
+
+func (c *KeygenClient) ValidateKey(key string) (*ValidateResponse, error) {
+	url := fmt.Sprintf("https://api.keygen.sh/v1/accounts/%s/licenses/actions/validate-key", c.AccountID)
+
+	reqBody := map[string]interface{}{
+		"meta": map[string]string{
+			"key": key,
+		},
+	}
+	bodyBytes, _ := json.Marshal(reqBody)
+
+	req, _ := http.NewRequest(http.MethodPost, url, bytes.NewBuffer(bodyBytes))
+	req.Header.Set("Content-Type", "application/json")
+	req.Header.Set("Accept", "application/json")
+	if c.Token != "" {
+		if !strings.HasPrefix(c.Token, "Bearer ") && !strings.HasPrefix(c.Token, "License ") {
+			req.Header.Set("Authorization", "License "+c.Token)
+		} else {
+			req.Header.Set("Authorization", c.Token)
+		}
+	}
+
+	resp, err := c.HTTPClient.Do(req)
+	if err != nil {
+		return nil, err
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != http.StatusOK {
+		return nil, fmt.Errorf("keygen api error: status %d", resp.StatusCode)
+	}
+
+	var valResp ValidateResponse
+	if err := json.NewDecoder(resp.Body).Decode(&valResp); err != nil {
+		return nil, err
+	}
+
+	return &valResp, nil
+}
+
+func (c *KeygenClient) ActivateMachine(licenseID, fingerprint string) error {
+	url := fmt.Sprintf("https://api.keygen.sh/v1/accounts/%s/machines", c.AccountID)
+
+	var reqBody ActivateMachineRequest
+	reqBody.Data.Type = "machines"
+	reqBody.Data.Attributes.Fingerprint = fingerprint
+	reqBody.Data.Relationships.License.Data.Type = "licenses"
+	reqBody.Data.Relationships.License.Data.ID = licenseID
+
+	bodyBytes, _ := json.Marshal(reqBody)
+
+	req, _ := http.NewRequest(http.MethodPost, url, bytes.NewBuffer(bodyBytes))
+	req.Header.Set("Content-Type", "application/json")
+	req.Header.Set("Accept", "application/json")
+	if c.Token != "" {
+		if !strings.HasPrefix(c.Token, "Bearer ") && !strings.HasPrefix(c.Token, "License ") {
+			req.Header.Set("Authorization", "License "+c.Token)
+		} else {
+			req.Header.Set("Authorization", c.Token)
+		}
+	}
+
+	resp, err := c.HTTPClient.Do(req)
+	if err != nil {
+		return err
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode == http.StatusCreated || resp.StatusCode == http.StatusOK {
+		return nil
+	}
+
+	body, _ := io.ReadAll(resp.Body)
+	
+	if resp.StatusCode == http.StatusConflict || resp.StatusCode == http.StatusUnprocessableEntity {
+		if strings.Contains(string(body), "FINGERPRINT_TAKEN") || strings.Contains(string(body), "MACHINE_LIMIT_EXCEEDED") {
+			// Machine already registered to this license or limit reached because it's already us.
+			// The subsequent ValidateKey check will determine if the existing machine is actually us.
+			return nil
+		}
+	}
+
+	return fmt.Errorf("failed to activate machine: status %d, response: %s", resp.StatusCode, string(body))
+}

go-backend/internal/metrics/ingestion.go

@@ -0,0 +1,135 @@
+package metrics
+
+import (
+	"context"
+	"log"
+	"sync"
+	"time"
+
+	"go-backend/internal/store/model"
+	"go-backend/internal/store/repo"
+)
+
+type SystemInfo struct {
+	Uptime           uint64  `json:"uptime"`
+	BytesReceived    uint64  `json:"bytes_received"`
+	BytesTransmitted uint64  `json:"bytes_transmitted"`
+	CPUUsage         float64 `json:"cpu_usage"`
+	MemoryUsage      float64 `json:"memory_usage"`
+	DiskUsage        float64 `json:"disk_usage"`
+	Load1            float64 `json:"load1"`
+	Load5            float64 `json:"load5"`
+	Load15           float64 `json:"load15"`
+	TCPConns         int64   `json:"tcp_conns"`
+	UDPConns         int64   `json:"udp_conns"`
+	NetInSpeed       int64   `json:"net_in_speed"`
+	NetOutSpeed      int64   `json:"net_out_speed"`
+}
+
+type IngestionService struct {
+	repo          *repo.Repository
+	nodeBuffer    []*model.NodeMetric
+	nodeBufferMu  sync.Mutex
+	flushInterval time.Duration
+	retentionDays int
+}
+
+func NewIngestionService(repo *repo.Repository) *IngestionService {
+	return &IngestionService{
+		repo:          repo,
+		nodeBuffer:    make([]*model.NodeMetric, 0, 500),
+		flushInterval: 30 * time.Second,
+		retentionDays: 7,
+	}
+}
+
+func (s *IngestionService) Start(ctx context.Context) {
+	flushTicker := time.NewTicker(s.flushInterval)
+	defer flushTicker.Stop()
+
+	pruneTicker := time.NewTicker(1 * time.Hour)
+	defer pruneTicker.Stop()
+
+	for {
+		select {
+		case <-ctx.Done():
+			s.flushNodeMetrics()
+			return
+		case <-flushTicker.C:
+			s.flushNodeMetrics()
+		case <-pruneTicker.C:
+			s.pruneMetrics()
+		}
+	}
+}
+
+func (s *IngestionService) RecordNodeMetric(nodeID int64, info SystemInfo) {
+	m := &model.NodeMetric{
+		NodeID:      nodeID,
+		Timestamp:   time.Now().UnixMilli(),
+		CPUUsage:    info.CPUUsage,
+		MemUsage:    info.MemoryUsage,
+		DiskUsage:   info.DiskUsage,
+		NetInBytes:  int64(info.BytesReceived),
+		NetOutBytes: int64(info.BytesTransmitted),
+		NetInSpeed:  info.NetInSpeed,
+		NetOutSpeed: info.NetOutSpeed,
+		Load1:       info.Load1,
+		Load5:       info.Load5,
+		Load15:      info.Load15,
+		TCPConns:    info.TCPConns,
+		UDPConns:    info.UDPConns,
+		Uptime:      int64(info.Uptime),
+	}
+
+	s.nodeBufferMu.Lock()
+	s.nodeBuffer = append(s.nodeBuffer, m)
+	shouldFlush := len(s.nodeBuffer) >= 200
+	s.nodeBufferMu.Unlock()
+
+	if shouldFlush {
+		go s.flushNodeMetrics()
+	}
+}
+
+func (s *IngestionService) flushNodeMetrics() {
+	s.nodeBufferMu.Lock()
+	if len(s.nodeBuffer) == 0 {
+		s.nodeBufferMu.Unlock()
+		return
+	}
+	buffer := s.nodeBuffer
+	s.nodeBuffer = make([]*model.NodeMetric, 0, 500)
+	s.nodeBufferMu.Unlock()
+
+	if s.repo == nil {
+		return
+	}
+	if err := s.repo.InsertNodeMetricBatch(buffer); err != nil {
+		log.Printf("monitoring write failed op=node_metric.flush count=%d err=%v", len(buffer), err)
+	}
+}
+
+func (s *IngestionService) pruneMetrics() {
+	cutoff := time.Now().Add(-time.Duration(s.retentionDays) * 24 * time.Hour).UnixMilli()
+	if s.repo == nil {
+		return
+	}
+	if err := s.repo.PruneNodeMetrics(cutoff); err != nil {
+		log.Printf("monitoring prune failed op=node_metric cutoff=%d err=%v", cutoff, err)
+	}
+	if err := s.repo.PruneTunnelMetrics(cutoff); err != nil {
+		log.Printf("monitoring prune failed op=tunnel_metric cutoff=%d err=%v", cutoff, err)
+	}
+	if err := s.repo.PruneServiceMonitorResults(cutoff); err != nil {
+		log.Printf("monitoring prune failed op=service_monitor_result cutoff=%d err=%v", cutoff, err)
+	}
+}
+
+func (s *IngestionService) GetLatestMetric(nodeID int64) (*model.NodeMetric, error) {
+	return s.repo.GetLatestNodeMetric(nodeID)
+}
+
+func (s *IngestionService) GetMetrics(nodeID int64, startMs, endMs int64) ([]model.NodeMetric, error) {
+	return s.repo.GetNodeMetrics(nodeID, startMs, endMs)
+}

go-backend/internal/metrics/ingestion_test.go

@@ -0,0 +1,294 @@
+package metrics
+
+import (
+	"context"
+	"testing"
+	"time"
+
+	"go-backend/internal/store/repo"
+)
+
+func TestRecordNodeMetric(t *testing.T) {
+	r, err := repo.Open(":memory:")
+	if err != nil {
+		t.Fatalf("open repo: %v", err)
+	}
+	defer r.Close()
+
+	svc := NewIngestionService(r)
+
+	info := SystemInfo{
+		Uptime:           86400,
+		BytesReceived:    1024000,
+		BytesTransmitted: 2048000,
+		CPUUsage:         45.5,
+		MemoryUsage:      60.2,
+		DiskUsage:        30.1,
+		Load1:            1.5,
+		Load5:            1.2,
+		Load15:           0.9,
+		TCPConns:         100,
+		UDPConns:         50,
+		NetInSpeed:       51200,
+		NetOutSpeed:      102400,
+	}
+
+	svc.RecordNodeMetric(1, info)
+	svc.flushNodeMetrics()
+
+	metrics, err := r.GetNodeMetrics(1, time.Now().UnixMilli()-60000, time.Now().UnixMilli()+1000)
+	if err != nil {
+		t.Fatalf("get metrics: %v", err)
+	}
+	if len(metrics) != 1 {
+		t.Fatalf("expected 1 metric, got %d", len(metrics))
+	}
+
+	m := metrics[0]
+	if m.CPUUsage != 45.5 {
+		t.Fatalf("expected CPUUsage 45.5, got %f", m.CPUUsage)
+	}
+	if m.MemUsage != 60.2 {
+		t.Fatalf("expected MemUsage 60.2, got %f", m.MemUsage)
+	}
+	if m.DiskUsage != 30.1 {
+		t.Fatalf("expected DiskUsage 30.1, got %f", m.DiskUsage)
+	}
+	if m.Load1 != 1.5 {
+		t.Fatalf("expected Load1 1.5, got %f", m.Load1)
+	}
+	if m.TCPConns != 100 {
+		t.Fatalf("expected TCPConns 100, got %d", m.TCPConns)
+	}
+	if m.UDPConns != 50 {
+		t.Fatalf("expected UDPConns 50, got %d", m.UDPConns)
+	}
+}
+
+func TestRecordNodeMetricAutoFlush(t *testing.T) {
+	r, err := repo.Open(":memory:")
+	if err != nil {
+		t.Fatalf("open repo: %v", err)
+	}
+	defer r.Close()
+
+	svc := NewIngestionService(r)
+
+	info := SystemInfo{
+		CPUUsage:    50.0,
+		MemoryUsage: 60.0,
+		DiskUsage:   30.0,
+	}
+
+	for i := 0; i < 250; i++ {
+		svc.RecordNodeMetric(1, info)
+	}
+
+	time.Sleep(100 * time.Millisecond)
+
+	metrics, err := r.GetNodeMetrics(1, time.Now().UnixMilli()-60000, time.Now().UnixMilli()+1000)
+	if err != nil {
+		t.Fatalf("get metrics: %v", err)
+	}
+	if len(metrics) < 200 {
+		t.Fatalf("expected at least 200 metrics after auto-flush, got %d", len(metrics))
+	}
+}
+
+func TestIngestionServiceStart(t *testing.T) {
+	r, err := repo.Open(":memory:")
+	if err != nil {
+		t.Fatalf("open repo: %v", err)
+	}
+	defer r.Close()
+
+	svc := NewIngestionService(r)
+	svc.flushInterval = 100 * time.Millisecond
+
+	ctx, cancel := context.WithTimeout(context.Background(), 500*time.Millisecond)
+	defer cancel()
+
+	info := SystemInfo{
+		CPUUsage:    45.0,
+		MemoryUsage: 55.0,
+		DiskUsage:   35.0,
+	}
+
+	go svc.Start(ctx)
+
+	for i := 0; i < 10; i++ {
+		svc.RecordNodeMetric(1, info)
+		time.Sleep(50 * time.Millisecond)
+	}
+
+	<-ctx.Done()
+
+	metrics, err := r.GetNodeMetrics(1, time.Now().UnixMilli()-60000, time.Now().UnixMilli()+1000)
+	if err != nil {
+		t.Fatalf("get metrics: %v", err)
+	}
+	if len(metrics) == 0 {
+		t.Fatalf("expected metrics after service run")
+	}
+}
+
+func TestGetLatestMetric(t *testing.T) {
+	r, err := repo.Open(":memory:")
+	if err != nil {
+		t.Fatalf("open repo: %v", err)
+	}
+	defer r.Close()
+
+	svc := NewIngestionService(r)
+
+	now := time.Now().UnixMilli()
+
+	info1 := SystemInfo{CPUUsage: 40.0, MemoryUsage: 50.0, DiskUsage: 30.0}
+	svc.RecordNodeMetric(1, info1)
+
+	time.Sleep(5 * time.Millisecond)
+
+	info2 := SystemInfo{CPUUsage: 60.0, MemoryUsage: 70.0, DiskUsage: 40.0}
+	svc.RecordNodeMetric(1, info2)
+
+	svc.flushNodeMetrics()
+
+	latest, err := svc.GetLatestMetric(1)
+	if err != nil {
+		t.Fatalf("get latest: %v", err)
+	}
+	if latest == nil {
+		t.Fatalf("expected latest metric")
+	}
+	if latest.CPUUsage != 60.0 {
+		t.Fatalf("expected latest CPUUsage 60.0, got %f", latest.CPUUsage)
+	}
+
+	_ = now
+
+	latestNone, err := svc.GetLatestMetric(999)
+	if err != nil {
+		t.Fatalf("get latest for non-existent: %v", err)
+	}
+	if latestNone != nil {
+		t.Fatalf("expected nil for non-existent node")
+	}
+}
+
+func TestGetMetricsWithTimeRange(t *testing.T) {
+	r, err := repo.Open(":memory:")
+	if err != nil {
+		t.Fatalf("open repo: %v", err)
+	}
+	defer r.Close()
+
+	svc := NewIngestionService(r)
+
+	now := time.Now().UnixMilli()
+
+	for i := 0; i < 5; i++ {
+		info := SystemInfo{
+			CPUUsage:    float64(40 + i*5),
+			MemoryUsage: 50.0,
+			DiskUsage:   30.0,
+		}
+		svc.RecordNodeMetric(1, info)
+		time.Sleep(10 * time.Millisecond)
+	}
+
+	svc.flushNodeMetrics()
+
+	metrics, err := svc.GetMetrics(1, now-60000, now+1000)
+	if err != nil {
+		t.Fatalf("get metrics: %v", err)
+	}
+	if len(metrics) != 5 {
+		t.Fatalf("expected 5 metrics, got %d", len(metrics))
+	}
+}
+
+func TestPruneMetrics(t *testing.T) {
+	r, err := repo.Open(":memory:")
+	if err != nil {
+		t.Fatalf("open repo: %v", err)
+	}
+	defer r.Close()
+
+	svc := NewIngestionService(r)
+	svc.retentionDays = 1
+
+	info := SystemInfo{CPUUsage: 50.0, MemoryUsage: 60.0, DiskUsage: 30.0}
+
+	svc.RecordNodeMetric(1, info)
+	svc.flushNodeMetrics()
+
+	svc.pruneMetrics()
+
+	metrics, err := r.GetNodeMetrics(1, time.Now().UnixMilli()-60000, time.Now().UnixMilli()+1000)
+	if err != nil {
+		t.Fatalf("get metrics: %v", err)
+	}
+	if len(metrics) != 1 {
+		t.Fatalf("expected 1 metric (not pruned), got %d", len(metrics))
+	}
+}
+
+func TestMultipleNodes(t *testing.T) {
+	r, err := repo.Open(":memory:")
+	if err != nil {
+		t.Fatalf("open repo: %v", err)
+	}
+	defer r.Close()
+
+	svc := NewIngestionService(r)
+
+	info := SystemInfo{
+		CPUUsage:    50.0,
+		MemoryUsage: 60.0,
+		DiskUsage:   30.0,
+	}
+
+	svc.RecordNodeMetric(1, info)
+	svc.RecordNodeMetric(2, info)
+	svc.RecordNodeMetric(3, info)
+
+	svc.flushNodeMetrics()
+
+	for nodeID := int64(1); nodeID <= 3; nodeID++ {
+		metrics, err := r.GetNodeMetrics(nodeID, time.Now().UnixMilli()-60000, time.Now().UnixMilli()+1000)
+		if err != nil {
+			t.Fatalf("get metrics for node %d: %v", nodeID, err)
+		}
+		if len(metrics) != 1 {
+			t.Fatalf("expected 1 metric for node %d, got %d", nodeID, len(metrics))
+		}
+	}
+}
+
+func TestZeroValues(t *testing.T) {
+	r, err := repo.Open(":memory:")
+	if err != nil {
+		t.Fatalf("open repo: %v", err)
+	}
+	defer r.Close()
+
+	svc := NewIngestionService(r)
+
+	info := SystemInfo{}
+
+	svc.RecordNodeMetric(1, info)
+	svc.flushNodeMetrics()
+
+	metrics, err := r.GetNodeMetrics(1, time.Now().UnixMilli()-60000, time.Now().UnixMilli()+1000)
+	if err != nil {
+		t.Fatalf("get metrics: %v", err)
+	}
+	if len(metrics) != 1 {
+		t.Fatalf("expected 1 metric, got %d", len(metrics))
+	}
+
+	m := metrics[0]
+	if m.CPUUsage != 0 || m.MemUsage != 0 || m.DiskUsage != 0 {
+		t.Fatalf("expected zero values, got CPU=%f Mem=%f Disk=%f", m.CPUUsage, m.MemUsage, m.DiskUsage)
+	}
+}

go-backend/internal/monitoring/limits.go

@@ -0,0 +1,114 @@
+package monitoring
+
+import (
+	"strconv"
+	"strings"
+)
+
+type ServiceMonitorLimits struct {
+	CheckerScanIntervalSec int `json:"checkerScanIntervalSec"`
+	WorkerLimit            int `json:"workerLimit"`
+
+	MinIntervalSec     int `json:"minIntervalSec"`
+	DefaultIntervalSec int `json:"defaultIntervalSec"`
+
+	MinTimeoutSec     int `json:"minTimeoutSec"`
+	DefaultTimeoutSec int `json:"defaultTimeoutSec"`
+	MaxTimeoutSec     int `json:"maxTimeoutSec"`
+}
+
+const (
+	ConfigServiceMonitorCheckerScanIntervalSec = "service_monitor_checker_scan_interval_sec"
+	ConfigServiceMonitorWorkerLimit            = "service_monitor_worker_limit"
+	ConfigServiceMonitorMinIntervalSec         = "service_monitor_min_interval_sec"
+	ConfigServiceMonitorDefaultIntervalSec     = "service_monitor_default_interval_sec"
+	ConfigServiceMonitorMinTimeoutSec          = "service_monitor_min_timeout_sec"
+	ConfigServiceMonitorDefaultTimeoutSec      = "service_monitor_default_timeout_sec"
+	ConfigServiceMonitorMaxTimeoutSec          = "service_monitor_max_timeout_sec"
+)
+
+func DefaultServiceMonitorLimits() ServiceMonitorLimits {
+	return ServiceMonitorLimits{
+		CheckerScanIntervalSec: 1,
+		WorkerLimit:            20,
+		MinIntervalSec:         1,
+		DefaultIntervalSec:     1,
+		MinTimeoutSec:          1,
+		DefaultTimeoutSec:      5,
+		MaxTimeoutSec:          60,
+	}
+}
+
+// ServiceMonitorLimitsFromConfigMap parses limits from vite_config values.
+// Missing/invalid values fall back to defaults.
+func ServiceMonitorLimitsFromConfigMap(cfg map[string]string) ServiceMonitorLimits {
+	limits := DefaultServiceMonitorLimits()
+	if cfg == nil {
+		return limits
+	}
+
+	limits.CheckerScanIntervalSec = parseConfigInt(cfg, ConfigServiceMonitorCheckerScanIntervalSec, limits.CheckerScanIntervalSec)
+	limits.WorkerLimit = parseConfigInt(cfg, ConfigServiceMonitorWorkerLimit, limits.WorkerLimit)
+	limits.MinIntervalSec = parseConfigInt(cfg, ConfigServiceMonitorMinIntervalSec, limits.MinIntervalSec)
+	limits.DefaultIntervalSec = parseConfigInt(cfg, ConfigServiceMonitorDefaultIntervalSec, limits.DefaultIntervalSec)
+	limits.MinTimeoutSec = parseConfigInt(cfg, ConfigServiceMonitorMinTimeoutSec, limits.MinTimeoutSec)
+	limits.DefaultTimeoutSec = parseConfigInt(cfg, ConfigServiceMonitorDefaultTimeoutSec, limits.DefaultTimeoutSec)
+	limits.MaxTimeoutSec = parseConfigInt(cfg, ConfigServiceMonitorMaxTimeoutSec, limits.MaxTimeoutSec)
+
+	return normalizeServiceMonitorLimits(limits)
+}
+
+func normalizeServiceMonitorLimits(limits ServiceMonitorLimits) ServiceMonitorLimits {
+	if limits.CheckerScanIntervalSec <= 0 {
+		limits.CheckerScanIntervalSec = 30
+	}
+	if limits.WorkerLimit <= 0 {
+		limits.WorkerLimit = 5
+	}
+	if limits.WorkerLimit > 50 {
+		limits.WorkerLimit = 50
+	}
+
+	if limits.MinIntervalSec <= 0 {
+		limits.MinIntervalSec = limits.CheckerScanIntervalSec
+	}
+	if limits.MinIntervalSec < limits.CheckerScanIntervalSec {
+		limits.MinIntervalSec = limits.CheckerScanIntervalSec
+	}
+	if limits.DefaultIntervalSec <= 0 {
+		limits.DefaultIntervalSec = 60
+	}
+	if limits.DefaultIntervalSec < limits.MinIntervalSec {
+		limits.DefaultIntervalSec = limits.MinIntervalSec
+	}
+
+	if limits.MinTimeoutSec <= 0 {
+		limits.MinTimeoutSec = 1
+	}
+	if limits.DefaultTimeoutSec <= 0 {
+		limits.DefaultTimeoutSec = 5
+	}
+	if limits.DefaultTimeoutSec < limits.MinTimeoutSec {
+		limits.DefaultTimeoutSec = limits.MinTimeoutSec
+	}
+	if limits.MaxTimeoutSec <= 0 {
+		limits.MaxTimeoutSec = 60
+	}
+	if limits.MaxTimeoutSec < limits.DefaultTimeoutSec {
+		limits.MaxTimeoutSec = limits.DefaultTimeoutSec
+	}
+
+	return limits
+}
+
+func parseConfigInt(cfg map[string]string, key string, fallback int) int {
+	v := strings.TrimSpace(cfg[key])
+	if v == "" {
+		return fallback
+	}
+	n, err := strconv.Atoi(v)
+	if err != nil {
+		return fallback
+	}
+	return n
+}

go-backend/internal/store/model/model.go

@@ -58,29 +58,33 @@ type ForwardPort struct {
 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)"`
-	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"`
+	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" }
@@ -126,6 +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"`
@@ -214,6 +235,16 @@ type GroupPermissionGrant struct {
 
 func (GroupPermissionGrant) TableName() string { return "group_permission_grant" }
 
+// MonitorPermission grants a non-admin user access to monitoring endpoints.
+// One row per user_id.
+type MonitorPermission struct {
+	ID          int64 `gorm:"primaryKey;autoIncrement" json:"id"`
+	UserID      int64 `gorm:"column:user_id;not null;uniqueIndex:idx_monitor_permission_user" json:"userId"`
+	CreatedTime int64 `gorm:"column:created_time;not null" json:"createdTime"`
+}
+
+func (MonitorPermission) TableName() string { return "monitor_permission" }
+
 type ViteConfig struct {
 	ID    int64  `gorm:"primaryKey;autoIncrement" json:"id"`
 	Name  string `gorm:"type:varchar(200);not null;uniqueIndex" json:"name"`
@@ -318,24 +349,31 @@ 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"`
@@ -510,6 +548,19 @@ 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
@@ -573,6 +624,7 @@ type UserTunnelDetail struct {
 	UserID        int64
 	TunnelID      int64
 	TunnelName    string
+	Status        int
 	TunnelFlow    int
 	Flow          int64
 	InFlow        int64
@@ -599,3 +651,84 @@ type UserForwardDetail struct {
 	Status     int
 	CreatedAt  int64
 }
+
+type NodeMetric struct {
+	ID          int64   `gorm:"primaryKey;autoIncrement" json:"id"`
+	NodeID      int64   `gorm:"column:node_id;not null;index:idx_node_metric_node_time,priority:1" json:"nodeId"`
+	Timestamp   int64   `gorm:"not null;index:idx_node_metric_node_time,priority:2;index:idx_node_metric_time" json:"timestamp"`
+	CPUUsage    float64 `gorm:"column:cpu_usage" json:"cpuUsage"`
+	MemUsage    float64 `gorm:"column:mem_usage" json:"memoryUsage"`
+	DiskUsage   float64 `gorm:"column:disk_usage" json:"diskUsage"`
+	NetInBytes  int64   `gorm:"column:net_in_bytes" json:"netInBytes"`
+	NetOutBytes int64   `gorm:"column:net_out_bytes" json:"netOutBytes"`
+	NetInSpeed  int64   `gorm:"column:net_in_speed" json:"netInSpeed"`
+	NetOutSpeed int64   `gorm:"column:net_out_speed" json:"netOutSpeed"`
+	Load1       float64 `gorm:"column:load1" json:"load1"`
+	Load5       float64 `gorm:"column:load5" json:"load5"`
+	Load15      float64 `gorm:"column:load15" json:"load15"`
+	TCPConns    int64   `gorm:"column:tcp_conns" json:"tcpConns"`
+	UDPConns    int64   `gorm:"column:udp_conns" json:"udpConns"`
+	Uptime      int64   `gorm:"column:uptime" json:"uptime"`
+}
+
+func (NodeMetric) TableName() string { return "node_metric" }
+
+type TunnelMetric struct {
+	ID           int64   `gorm:"primaryKey;autoIncrement" json:"id"`
+	TunnelID     int64   `gorm:"column:tunnel_id;not null;uniqueIndex:idx_tunnel_metric_tunnel_time,priority:1" json:"tunnelId"`
+	NodeID       int64   `gorm:"column:node_id;not null;uniqueIndex:idx_tunnel_metric_tunnel_time,priority:2" json:"nodeId"`
+	Timestamp    int64   `gorm:"not null;uniqueIndex:idx_tunnel_metric_tunnel_time,priority:3;index:idx_tunnel_metric_time" json:"timestamp"`
+	BytesIn      int64   `gorm:"column:bytes_in" json:"bytesIn"`
+	BytesOut     int64   `gorm:"column:bytes_out" json:"bytesOut"`
+	Connections  int64   `gorm:"column:connections" json:"connections"`
+	Errors       int64   `gorm:"column:errors" json:"errors"`
+	AvgLatencyMs float64 `gorm:"column:avg_latency_ms" json:"avgLatencyMs"`
+}
+
+func (TunnelMetric) TableName() string { return "tunnel_metric" }
+
+type ServiceMonitor struct {
+	ID          int64  `gorm:"primaryKey;autoIncrement" json:"id"`
+	Name        string `gorm:"type:varchar(100);not null" json:"name"`
+	Type        string `gorm:"type:varchar(20);not null" json:"type"`
+	Target      string `gorm:"type:text;not null" json:"target"`
+	IntervalSec int    `gorm:"column:interval_sec;not null;default:60" json:"intervalSec"`
+	TimeoutSec  int    `gorm:"column:timeout_sec;not null;default:5" json:"timeoutSec"`
+	NodeID      int64  `gorm:"column:node_id;index" json:"nodeId"`
+	Enabled     int    `gorm:"not null;default:1" json:"enabled"`
+	CreatedTime int64  `gorm:"column:created_time;not null" json:"createdTime"`
+	UpdatedTime int64  `gorm:"column:updated_time;not null" json:"updatedTime"`
+}
+
+func (ServiceMonitor) TableName() string { return "service_monitor" }
+
+type ServiceMonitorResult struct {
+	ID           int64   `gorm:"primaryKey;autoIncrement" json:"id"`
+	MonitorID    int64   `gorm:"column:monitor_id;not null;index:idx_monitor_result_monitor_time,priority:1" json:"monitorId"`
+	NodeID       int64   `gorm:"column:node_id;not null;index" json:"nodeId"`
+	Timestamp    int64   `gorm:"not null;index:idx_monitor_result_monitor_time,priority:2" json:"timestamp"`
+	Success      int     `gorm:"not null" json:"success"`
+	LatencyMs    float64 `gorm:"column:latency_ms" json:"latencyMs"`
+	StatusCode   int     `gorm:"column:status_code" json:"statusCode"`
+	ErrorMessage string  `gorm:"column:error_message;type:text" json:"errorMessage"`
+}
+
+func (ServiceMonitorResult) TableName() string { return "service_monitor_result" }
+
+// TunnelQuality stores periodic probe results for a tunnel.
+// Unlike the old upsert model, rows accumulate for history/charting.
+// Old rows are pruned periodically (default: keep 24h).
+type TunnelQuality struct {
+	ID                 int64   `gorm:"primaryKey;autoIncrement" json:"id"`
+	TunnelID           int64   `gorm:"column:tunnel_id;not null;index:idx_tunnel_quality_tunnel_time,priority:1" json:"tunnelId"`
+	EntryToExitLatency float64 `gorm:"column:entry_to_exit_latency" json:"entryToExitLatency"`
+	ExitToBingLatency  float64 `gorm:"column:exit_to_bing_latency" json:"exitToBingLatency"`
+	EntryToExitLoss    float64 `gorm:"column:entry_to_exit_loss" json:"entryToExitLoss"`
+	ExitToBingLoss     float64 `gorm:"column:exit_to_bing_loss" json:"exitToBingLoss"`
+	Success            int     `gorm:"not null;default:1" json:"success"`
+	ErrorMessage       string  `gorm:"column:error_message;type:text" json:"errorMessage,omitempty"`
+	Timestamp          int64   `gorm:"not null;index:idx_tunnel_quality_tunnel_time,priority:2;index:idx_tunnel_quality_time" json:"timestamp"`
+	ChainDetails       string  `gorm:"column:chain_details;type:text" json:"chainDetails,omitempty"`
+}
+
+func (TunnelQuality) TableName() string { return "tunnel_quality" }