chore: bump version to 0.0.64 [skip ci]

添加emby挂载功能，整合上传，下载，刮削队列到任务队列

.github/workflows/Auto-docker-publish.yml

@@ -27,6 +27,9 @@ permissions:
 jobs:
   version-and-publish:
     runs-on: ubuntu-latest
+    outputs:
+      new_version: ${{ steps.bump_version.outputs.new_version }}
+      tag: ${{ steps.bump_version.outputs.tag }}
     steps:
       - uses: actions/checkout@v4
         with:
@@ -149,3 +152,117 @@ jobs:
             VERSION=${{ steps.bump_version.outputs.new_version }}
           cache-from: type=gha
           cache-to: type=gha,mode=max
+
+  # 单文件可执行构建：把前端打包进二进制（go:embed），交叉编译 Windows /
+  # Linux / macOS 的 amd64 / arm64 产物，作为 GitHub Release 附件发布。
+  build-frontend:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+          cache: 'npm'
+          cache-dependency-path: web/package-lock.json
+      - name: Install
+        working-directory: web
+        run: npm ci
+      - name: Build SPA
+        working-directory: web
+        run: npm run build
+      - name: Upload web/dist
+        uses: actions/upload-artifact@v4
+        with:
+          name: web-dist
+          path: web/dist
+          retention-days: 1
+
+  # 先创建（幂等）空的 GitHub Release，供后续 build-binaries 并行上传附件，
+  # 也避免矩阵各 job 并发 upload 时 release 尚不存在而互相竞争。
+  publish-create-release:
+    needs: [version-and-publish]
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+    steps:
+      - uses: actions/checkout@v4
+      - name: Create release
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          RELEASE_TAG: ${{ needs.version-and-publish.outputs.tag }}
+        run: |
+          set -eux
+          # tag 已由 version-and-publish 推送；若 release 已存在则忽略（--verify-tag 幂等）
+          gh release create "$RELEASE_TAG" \
+            --title "MMTL ${{ needs.version-and-publish.outputs.new_version }}" \
+            --notes "自动化发布 ${{ needs.version-and-publish.outputs.new_version }}" \
+            --verify-tag --latest || true
+
+  build-binaries:
+    needs: [version-and-publish, build-frontend, publish-create-release]
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - goos: linux
+            goarch: amd64
+            ext: ""
+          - goos: linux
+            goarch: arm64
+            ext: ""
+          - goos: windows
+            goarch: amd64
+            ext: .exe
+          - goos: windows
+            goarch: arm64
+            ext: .exe
+          - goos: darwin
+            goarch: amd64
+            ext: ""
+          - goos: darwin
+            goarch: arm64
+            ext: ""
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-go@v5
+        with:
+          go-version: '1.25'
+          cache: true
+      - name: Download web/dist
+        uses: actions/download-artifact@v4
+        with:
+          name: web-dist
+          path: web/dist
+      - name: Build binary
+        run: |
+          CGO_ENABLED=0 GOOS=${{ matrix.goos }} GOARCH=${{ matrix.goarch }} \
+            go build -trimpath -ldflags="-s -w -X main.version=${{ needs.version-and-publish.outputs.tag }}" \
+            -o "dist/mmtl-${{ matrix.goos }}-${{ matrix.goarch }}${{ matrix.ext }}" ./cmd/server
+      - name: Package
+        run: |
+          mkdir -p package/mmtl
+          cp "dist/mmtl-${{ matrix.goos }}-${{ matrix.goarch }}${{ matrix.ext }}" package/mmtl/mmtl${{ matrix.ext }}
+          cp README.md package/mmtl/ 2>/dev/null || true
+          if [ "${{ matrix.goos }}" = "windows" ]; then
+            (cd package && zip -r "../mmtl_${{ matrix.goos }}_${{ matrix.goarch }}.zip" mmtl)
+          else
+            tar -czf "mmtl_${{ matrix.goos }}_${{ matrix.goarch }}.tar.gz" -C package mmtl
+          fi
+      - name: Upload to GitHub Release
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          RELEASE_TAG: ${{ needs.version-and-publish.outputs.tag }}
+        run: |
+          set -eux
+          PKG="mmtl_${{ matrix.goos }}_${{ matrix.goarch }}.zip"
+          TAR="mmtl_${{ matrix.goos }}_${{ matrix.goarch }}.tar.gz"
+          # 并发上传到同一 release 各自文件，--clobber 幂等覆盖
+          if [ -f "$PKG" ]; then
+            for i in 1 2 3; do gh release upload "$RELEASE_TAG" "$PKG" --clobber && break || sleep 5; done
+          fi
+          if [ -f "$TAR" ]; then
+            for i in 1 2 3; do gh release upload "$RELEASE_TAG" "$TAR" --clobber && break || sleep 5; done
+          fi

.github/workflows/beta-build.yml

@@ -0,0 +1,133 @@
+# Beta 分支自动构建流水线
+#
+# 触发：push 到 beta 分支 / PR 到 beta / 手动触发。
+# 产出：
+#   1. 前端 + 后端编译验证（go vet / go test / go build）
+#   2. 多平台可执行二进制 artifact（linux/amd64、linux/arm64、windows/amd64）
+#   3. ghcr.io/{owner}/mmtl:beta 多架构 Docker 镜像（linux/amd64 + linux/arm64）
+#
+# 与 main 分支的发布流（Auto-docker-publish.yml）隔离：beta 不做版本递增、
+# 不打 release tag，只构建带 -beta 标识的产物供测试。
+
+name: Beta Build
+
+on:
+  push:
+    branches: [beta]
+  pull_request:
+    branches: [beta]
+  workflow_dispatch:
+
+permissions:
+  contents: read
+  packages: write
+
+env:
+  BETA_VERSION_PREFIX: beta
+
+jobs:
+  # ─────────────────────────────────────────────────────────────────────────────
+  # 1) 编译验证 + 多平台二进制产物
+  # ─────────────────────────────────────────────────────────────────────────────
+  test-and-build:
+    name: Test & build artifacts
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Resolve beta version
+        id: version
+        run: |
+          BASE_VERSION=$(cat VERSION 2>/dev/null || echo "0.0.0")
+          SHA_SHORT=${GITHUB_SHA:0:7}
+          echo "full_version=${BASE_VERSION}-beta.${SHA_SHORT}" >> "$GITHUB_OUTPUT"
+
+      # The binary embeds the SPA (web/dist) via go:embed, so dist must exist
+      # before the Go toolchain touches the web package.
+      - uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+          cache: 'npm'
+          cache-dependency-path: web/package-lock.json
+      - name: Build SPA
+        working-directory: web
+        run: |
+          npm ci
+          npm run build
+
+      - uses: actions/setup-go@v5
+        with:
+          go-version: '1.25'
+          cache: true
+
+      - name: go vet
+        run: go vet ./...
+
+      - name: go test
+        run: go test ./...
+
+      - name: go build (host)
+        run: go build ./...
+
+      # 多平台可执行文件（嵌入刚构建的 web/dist）
+      - name: Build linux/amd64
+        run: CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -trimpath -ldflags="-s -w -X main.version=${{ steps.version.outputs.full_version }}" -o dist/mmtl-beta-linux-amd64 ./cmd/server
+      - name: Build linux/arm64
+        run: CGO_ENABLED=0 GOOS=linux GOARCH=arm64 go build -trimpath -ldflags="-s -w -X main.version=${{ steps.version.outputs.full_version }}" -o dist/mmtl-beta-linux-arm64 ./cmd/server
+      - name: Build windows/amd64
+        run: CGO_ENABLED=0 GOOS=windows GOARCH=amd64 go build -trimpath -ldflags="-s -w -X main.version=${{ steps.version.outputs.full_version }}" -o dist/mmtl-beta-windows-amd64.exe ./cmd/server
+
+      - name: Upload artifacts
+        uses: actions/upload-artifact@v4
+        with:
+          name: mmtl-beta-binaries
+          path: dist/*
+          if-no-files-found: error
+
+  # ─────────────────────────────────────────────────────────────────────────────
+  # 2) Beta Docker 镜像（ghcr.io/{owner}/mmtl:beta）
+  # ─────────────────────────────────────────────────────────────────────────────
+  docker-beta:
+    name: Build & push beta Docker image
+    needs: test-and-build
+    runs-on: ubuntu-latest
+    # PR 事件不推送镜像，仅 push beta / 手动触发时推送
+    if: github.event_name != 'pull_request'
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Resolve beta version
+        id: version
+        run: |
+          BASE_VERSION=$(cat VERSION 2>/dev/null || echo "0.0.0")
+          SHA_SHORT=${GITHUB_SHA:0:7}
+          echo "full_version=${BASE_VERSION}-beta.${SHA_SHORT}" >> "$GITHUB_OUTPUT"
+
+      - uses: docker/setup-qemu-action@v3
+      - uses: docker/setup-buildx-action@v3
+
+      - name: Log in to GHCR
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Build & push
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          platforms: linux/amd64,linux/arm64
+          push: true
+          provenance: false
+          sbom: false
+          tags: ghcr.io/${{ github.repository_owner }}/mmtl:beta
+          labels: |
+            org.opencontainers.image.revision=${{ github.sha }}
+            org.opencontainers.image.source=${{ github.repository }}
+          build-args: |
+            VERSION=${{ steps.version.outputs.full_version }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max

.github/workflows/ci.yml

@@ -18,6 +18,19 @@ jobs:
           go-version: '1.25'
           cache: true
 
+      # The binary embeds the SPA (web/dist) via go:embed, so the dist must exist
+      # before the Go toolchain touches the `web` package.
+      - uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+          cache: 'npm'
+          cache-dependency-path: web/package-lock.json
+      - name: Build SPA
+        working-directory: web
+        run: |
+          npm ci
+          npm run build
+
       - name: go vet
         run: go vet ./...
 

README.md

@@ -360,15 +360,17 @@ docker compose -f docker-compose.search.yml up -d --no-deps mmtl
 
 本地开发需要 Go、Node.js 和 npm。
 
+后端会将 `web/dist` 通过 `go:embed` 编进二进制，因此**在编译 / 运行后端之前要先构建前端**，否则 `web` 包会因为缺少嵌入资源而编译失败。
+
 ```bash
+# 前端依赖与构建（必须先做，产物被 go:embed 打进二进制）
+npm --prefix web ci
+npm --prefix web run build
+
 # 后端测试
 go test ./...
 
-# 前端依赖与构建
-npm --prefix web install
-npm --prefix web run build
-
-# 本地运行后端
+# 本地运行后端（二进制自带前端界面，无需额外 web 目录）
 go run ./cmd/server
 
 # 本地运行前端开发服务器
@@ -387,6 +389,21 @@ http://127.0.0.1:3000
 http://127.0.0.1:8080/api/health
 ```
 
+### 交叉编译单文件发布物
+
+CI（`.github/workflows/Auto-docker-publish.yml`）每次发布会自动为 Windows / Linux(含 Debian) / macOS 交叉编译 amd64 + arm64 的单文件可执行程序，并上传到对应的 GitHub Release。你可以在 Releases 页面下载 `.zip`（Windows）或 `.tar.gz`（Linux / macOS）附件，解压后直接运行其中的 `mmtl`（Windows 为 `mmtl.exe`），无需额外携带前端目录。
+
+本地手动交叉编译某个平台：
+
+```bash
+# 先构建前端
+npm --prefix web ci && npm --prefix web run build
+
+# 例如：构建 Linux amd64 单文件
+CGO_ENABLED=0 GOOS=linux GOARCH=amd64 \
+  go build -trimpath -ldflags="-s -w" -o mmtl-linux-amd64 ./cmd/server
+```
+
 ## 贡献与反馈
 
 提交 Bug、功能建议或 Pull Request 前，请先阅读 [贡献规范](CONTRIBUTING.md)。

VERSION

@@ -1 +1 @@
-0.0.11
+0.0.64

cmd/server/main.go

@@ -12,10 +12,7 @@ package main
 
 import (
 	"context"
-	"errors"
 	"fmt"
-	"net"
-	"net/http"
 	"os"
 	"os/signal"
 	"strings"
@@ -108,30 +105,19 @@ func main() {
 
 	router := buildRouter(cfg, logger, services)
 
-	srv := &http.Server{
-		Addr:              fmt.Sprintf(":%d", cfg.App.Port),
-		Handler:           router,
-		ReadHeaderTimeout: 15 * time.Second,
+	serverMgr := newServerManager(cfg, logger, router)
+	services.ReloadHTTPServer = serverMgr.Reload
+	if err := serverMgr.Start(); err != nil {
+		logger.Fatal("listen failed", zap.Error(err))
 	}
-
-	ln, err := net.Listen("tcp", srv.Addr)
-	if err != nil {
-		logger.Fatal("listen failed", zap.String("addr", srv.Addr), zap.Error(err))
-	}
-	localIP := getLocalIP()
-	logger.Info("server is ready",
-		zap.String("local", fmt.Sprintf("http://%s:%d", localIP, cfg.App.Port)),
-		zap.String("listen", srv.Addr),
-	)
 	go func() {
-		if err := srv.Serve(ln); err != nil && !errors.Is(err, http.ErrServerClosed) {
-			logger.Fatal("listen failed", zap.Error(err))
+		scheme := "http"
+		if cfg.App.HTTPSEnabled {
+			scheme = "https"
 		}
-	}()
-	go func() {
 		if publicIP := getPublicIP(3 * time.Second); publicIP != "" {
 			logger.Info("server public endpoint",
-				zap.String("public", fmt.Sprintf("http://%s:%d", publicIP, cfg.App.Port)),
+				zap.String("public", fmt.Sprintf("%s://%s:%d", scheme, publicIP, cfg.App.Port)),
 			)
 		}
 	}()
@@ -145,7 +131,7 @@ func main() {
 
 	ctx, cancel := context.WithTimeout(context.Background(), 15*time.Second)
 	defer cancel()
-	if err := srv.Shutdown(ctx); err != nil {
+	if err := serverMgr.Shutdown(ctx); err != nil {
 		logger.Error("graceful shutdown failed", zap.Error(err))
 	}
 	services.Close()

cmd/server/main_test.go

@@ -52,7 +52,7 @@ func TestServeSPANoCachesIndexAndServesRoutes(t *testing.T) {
 	}
 
 	router := gin.New()
-	serveSPA(router, webDir)
+	serveSPA(router, os.DirFS(webDir))
 
 	for _, path := range []string{"/", "/login", "/library/e1c3507e-2878-40ae-a0e1-6b6e44b7fa7a", "/media/abc"} {
 		req := httptest.NewRequest(http.MethodGet, path, nil)
@@ -93,7 +93,7 @@ func TestServeSPAServesAssetsImmutableAndBypassesAPIRoutes(t *testing.T) {
 	}
 
 	router := gin.New()
-	serveSPA(router, webDir)
+	serveSPA(router, os.DirFS(webDir))
 
 	assetReq := httptest.NewRequest(http.MethodGet, "/assets/app.js", nil)
 	assetResp := httptest.NewRecorder()
@@ -155,7 +155,7 @@ func TestServeSPAServesAssetsImmutableAndBypassesAPIRoutes(t *testing.T) {
 func TestServeSPAMissingIndexReportsExplicit404(t *testing.T) {
 	gin.SetMode(gin.TestMode)
 	router := gin.New()
-	serveSPA(router, t.TempDir())
+	serveSPA(router, os.DirFS(t.TempDir()))
 
 	req := httptest.NewRequest(http.MethodGet, "/", nil)
 	w := httptest.NewRecorder()

cmd/server/router.go

@@ -1,6 +1,8 @@
 package main
 
 import (
+	"io/fs"
+	"mime"
 	"net/http"
 	"os"
 	"path/filepath"
@@ -13,6 +15,8 @@ import (
 	"github.com/ShukeBta/MMTL/internal/handler"
 	"github.com/ShukeBta/MMTL/internal/middleware"
 	"github.com/ShukeBta/MMTL/internal/service"
+
+	"github.com/ShukeBta/MMTL/web"
 )
 
 func buildRouter(cfg *config.Config, logger *zap.Logger, svc *service.Container) *gin.Engine {
@@ -29,31 +33,41 @@ func buildRouter(cfg *config.Config, logger *zap.Logger, svc *service.Container)
 
 	handler.Register(r, cfg, logger, svc)
 
-	if cfg.App.WebDir != "" {
-		serveSPA(r, cfg.App.WebDir)
+	// Prefer a directory on disk when configured explicitly (e.g. the Docker image
+	// mounts web/dist from the build stage, or an operator overrides app.web_dir
+	// with a custom skin). Otherwise fall back to the SPA embedded into the binary,
+	// which is what makes the cross-platform single-file artifacts work.
+	uiFS := webui.DistFS()
+	if dir := cfg.App.WebDir; dir != "" {
+		disk := os.DirFS(dir)
+		if index, err := fs.Stat(disk, "index.html"); err == nil && !index.IsDir() {
+			uiFS = disk
+		}
 	}
+	serveSPA(r, uiFS)
 	return r
 }
 
 // serveSPA serves the React build artifacts and falls back to index.html for
-// non-API, non-asset paths so client-side routing keeps working.
-func serveSPA(r *gin.Engine, webDir string) {
+// non-API, non-asset paths so client-side routing keeps working. The UI tree
+// comes from root, which is either the compiled-in SPA or an on-disk web dir.
+func serveSPA(r *gin.Engine, root fs.FS) {
 	assets := r.Group("/assets")
 	assets.Use(func(c *gin.Context) {
 		c.Header("Cache-Control", "public, max-age=31536000, immutable")
 		c.Next()
 	})
-	assets.Static("/", filepath.Join(webDir, "assets"))
+	assets.GET("/*filepath", serveFSDir(root, "assets"))
 	brand := r.Group("/brand")
 	brand.Use(func(c *gin.Context) {
 		setNoCacheHeaders(c)
 		c.Next()
 	})
-	brand.Static("/", filepath.Join(webDir, "brand"))
+	brand.GET("/*filepath", serveFSDir(root, "brand"))
 	for _, rootFile := range []string{"/favicon.ico", "/favicon.svg", "/artwork-cache-sw.js"} {
-		filePath := filepath.Join(webDir, strings.TrimPrefix(rootFile, "/"))
-		r.GET(rootFile, serveNoCacheFile(filePath))
-		r.HEAD(rootFile, serveNoCacheFile(filePath))
+		name := strings.TrimPrefix(rootFile, "/")
+		r.GET(rootFile, serveFSFile(root, name))
+		r.HEAD(rootFile, serveFSFile(root, name))
 	}
 	r.NoRoute(func(c *gin.Context) {
 		path := c.Request.URL.Path
@@ -61,28 +75,50 @@ func serveSPA(r *gin.Engine, webDir string) {
 			c.Status(http.StatusNotFound)
 			return
 		}
-		serveSPAIndex(c, filepath.Join(webDir, "index.html"))
+		setNoCacheHeaders(c)
+		data, err := fs.ReadFile(root, "index.html")
+		if err != nil {
+			c.String(http.StatusNotFound, "MMTL web UI not found")
+			return
+		}
+		c.Data(http.StatusOK, "text/html; charset=utf-8", data)
 	})
 }
 
-func serveNoCacheFile(filePath string) gin.HandlerFunc {
+// serveFSDir serves a static subdirectory of root. A missing asset returns 404.
+func serveFSDir(root fs.FS, dir string) gin.HandlerFunc {
+	sub, err := fs.Sub(root, dir)
+	if err != nil {
+		return func(c *gin.Context) { c.Status(http.StatusNotFound) }
+	}
+	handler := http.StripPrefix("/"+dir, http.FileServerFS(sub))
 	return func(c *gin.Context) {
-		setNoCacheHeaders(c)
-		if _, err := os.Stat(filePath); err != nil {
-			c.Status(http.StatusNotFound)
-			return
-		}
-		c.File(filePath)
+		handler.ServeHTTP(c.Writer, c.Request)
 	}
 }
 
-func serveSPAIndex(c *gin.Context, indexPath string) {
-	setNoCacheHeaders(c)
-	if _, err := os.Stat(indexPath); err != nil {
-		c.String(http.StatusNotFound, "MMTL web UI not found: %s", indexPath)
-		return
+// serveFSFile serves a single root-level file (favicon / service worker) with
+// no-cache headers. It reads from root, which may be the embedded SPA or disk.
+func serveFSFile(root fs.FS, name string) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		setNoCacheHeaders(c)
+		data, err := fs.ReadFile(root, name)
+		if err != nil {
+			c.Status(http.StatusNotFound)
+			return
+		}
+		c.Data(http.StatusOK, mimeTypeByName(name), data)
+	}
+}
+
+// mimeTypeByName returns an HTTP content type guessed from a file extension.
+func mimeTypeByName(name string) string {
+	switch mime.TypeByExtension(filepath.Ext(name)) {
+	case "":
+		return "application/octet-stream"
+	default:
+		return mime.TypeByExtension(filepath.Ext(name))
 	}
-	c.File(indexPath)
 }
 
 func setNoCacheHeaders(c *gin.Context) {
@@ -137,6 +173,11 @@ func isFrontendLibraryRoute(path string) bool {
 	if strings.Contains(id, "/") {
 		return false
 	}
+	// 远程 Emby 挂载库的伪装 ID（embyremote~account~remote）也是前端库路由，
+	// 需要交给 SPA 而非当作 Emby API 路径 404。
+	if strings.HasPrefix(id, "embyremote~") {
+		return true
+	}
 	if len(id) != 36 {
 		return false
 	}

cmd/server/server_manager.go

@@ -0,0 +1,267 @@
+package main
+
+import (
+	"context"
+	"crypto/tls"
+	"errors"
+	"fmt"
+	"net"
+	"net/http"
+	"strings"
+	"sync"
+	"time"
+
+	"go.uber.org/zap"
+
+	"github.com/ShukeBta/MMTL/internal/config"
+	"github.com/ShukeBta/MMTL/internal/service"
+)
+
+// tlsPair 记录当前正在服务的证书，用于判断是否需要重新绑定监听。
+type tlsPair struct {
+	cert    tls.Certificate
+	certPEM string
+	keyPEM  string
+	// version 是解析后的证书/私钥指纹；内容或磁盘文件变化都会导致其改变，
+	// 据此决定是否需要重新绑定监听。
+	version string
+}
+
+// serverManager 负责 MMTL 的 HTTP/HTTPS 监听。HTTPS 设置保存后调用 Reload，
+// 在同一个端口上把明文 HTTP 与 TLS 监听热切换，无需重启进程：
+//
+//   - 关闭旧监听释放端口（同一进程内 Windows 不允许重复绑定同一端口）；
+//   - 按最新配置重新绑定并立即对外服务；
+//   - 旧服务器随后优雅退出，正在进行的播放/请求不会被立刻掐断。
+//
+// 任何校验失败都会中止切换并保留旧监听，保证用户不会被锁在服务外面。
+type serverManager struct {
+	cfg     *config.Config
+	log     *zap.Logger
+	handler http.Handler
+	addr    string
+
+	mu                sync.Mutex
+	srv               *http.Server
+	ln                net.Listener
+	pair              *tlsPair
+	stopCh            chan struct{}
+	autoReloadStarted bool
+}
+
+func newServerManager(cfg *config.Config, log *zap.Logger, handler http.Handler) *serverManager {
+	return &serverManager{
+		cfg:     cfg,
+		log:     log,
+		handler: handler,
+		addr:    fmt.Sprintf(":%d", cfg.App.Port),
+		stopCh:  make(chan struct{}),
+	}
+}
+
+// Start 启动监听。即使 HTTPS 配置损坏也退回明文 HTTP 继续启动，避免服务冷启动失败。
+func (m *serverManager) Start() error {
+	m.mu.Lock()
+	defer m.mu.Unlock()
+
+	pair, err := m.desiredPair()
+	if err != nil {
+		m.log.Error("invalid HTTPS config at startup, serving plain HTTP instead", zap.Error(err))
+		pair = nil
+	}
+	if err := m.bind(pair); err != nil {
+		return err
+	}
+	m.logServerReady()
+	m.maybeStartAutoReloadLocked()
+	return nil
+}
+
+// Reload 依据最新配置热切换监听。返回的错误会带给调用它的设置接口；若新监听
+// 绑定失败会自动回滚到旧配置继续服务。
+func (m *serverManager) Reload() error {
+	m.mu.Lock()
+	defer m.mu.Unlock()
+
+	pair, err := m.desiredPair()
+	if err != nil {
+		m.log.Error("server reload aborted", zap.Error(err))
+		return err
+	}
+	if m.pairEquals(pair) {
+		return nil
+	}
+
+	oldSrv, oldLn, oldPair := m.srv, m.ln, m.pair
+	if oldLn != nil {
+		_ = oldLn.Close() // 释放端口后再绑定新监听
+	}
+	m.srv, m.ln, m.pair = nil, nil, nil
+
+	firstErr := m.bind(pair)
+	if firstErr != nil {
+		m.log.Error("bind new listener failed, rolling back to previous", zap.Error(firstErr))
+		if rbErr := m.bind(oldPair); rbErr != nil {
+			return fmt.Errorf("reload failed: %v; rollback failed: %v", firstErr, rbErr)
+		}
+	}
+	// 新监听已就绪，让旧服务器在新连接切换到新监听后优雅退出。
+	m.drain(oldSrv)
+	m.logServerReady()
+	m.maybeStartAutoReloadLocked()
+	return firstErr
+}
+
+// Shutdown 优雅停止当前服务器（用于进程退出）。
+func (m *serverManager) Shutdown(ctx context.Context) error {
+	select {
+	case <-m.stopCh:
+	default:
+		close(m.stopCh)
+	}
+	m.mu.Lock()
+	defer m.mu.Unlock()
+	if m.srv == nil {
+		return nil
+	}
+	return m.srv.Shutdown(ctx)
+}
+
+// desiredPair 根据当前配置计算目标监听形态：nil 表示明文 HTTP，非 nil 表示 TLS。
+// 证书/私钥按"路径优先、内容兜底"解析，并校验是否匹配。
+func (m *serverManager) desiredPair() (*tlsPair, error) {
+	if m.cfg == nil || !m.cfg.App.HTTPSEnabled {
+		return nil, nil
+	}
+	certPEM, err := service.ResolveSSLMaterial(m.cfg.App.SSLCert, m.cfg.App.SSLCertPath, "证书")
+	if err != nil {
+		return nil, err
+	}
+	keyPEM, err := service.ResolveSSLMaterial(m.cfg.App.SSLKey, m.cfg.App.SSLKeyPath, "私钥")
+	if err != nil {
+		return nil, err
+	}
+	if err := service.ValidateSSLKeyPair(certPEM, keyPEM); err != nil {
+		return nil, err
+	}
+	cert, err := tls.X509KeyPair([]byte(certPEM), []byte(keyPEM))
+	if err != nil {
+		return nil, fmt.Errorf("SSL 证书/私钥无效：%v", err)
+	}
+	return &tlsPair{
+		cert:    cert,
+		certPEM: certPEM,
+		keyPEM:  keyPEM,
+		version: certPEM + "\x00" + keyPEM,
+	}, nil
+}
+
+// maybeStartAutoReloadLocked 在证书/私钥通过文件路径配置时，幂等地启动后台轮询，
+// 便于运行中切换到路径方式（或换证）后无需重启也能热更新。调用方需持有 m.mu。
+func (m *serverManager) maybeStartAutoReloadLocked() {
+	if m.autoReloadStarted {
+		return
+	}
+	if !m.pathBased() {
+		return
+	}
+	m.autoReloadStarted = true
+	m.startAutoReload()
+}
+
+// pathBased 是否至少有一侧证书/私钥通过文件路径配置。
+func (m *serverManager) pathBased() bool {
+	return strings.TrimSpace(m.cfg.App.SSLCertPath) != "" || strings.TrimSpace(m.cfg.App.SSLKeyPath) != ""
+}
+
+// startAutoReload 后台轮询文件变更并自动热更新，方便换证。
+func (m *serverManager) startAutoReload() {
+	ticker := time.NewTicker(30 * time.Second)
+	go func() {
+		defer ticker.Stop()
+		for {
+			select {
+			case <-m.stopCh:
+				return
+			case <-ticker.C:
+				if !m.pathBased() {
+					continue // 路径已清空（改回内容配置），不再轮询
+				}
+				if err := m.Reload(); err != nil {
+					m.log.Warn("periodic https reload failed", zap.Error(err))
+				}
+			}
+		}
+	}()
+}
+
+// pairEquals 判断目标配置与当前监听是否一致，一致则无需重新绑定。
+func (m *serverManager) pairEquals(pair *tlsPair) bool {
+	if pair == nil && m.pair == nil {
+		return true
+	}
+	if pair == nil || m.pair == nil {
+		return false
+	}
+	return pair.version == m.pair.version
+}
+
+// bind 创建并按需启用 TLS 的监听，异步开始服务。
+func (m *serverManager) bind(pair *tlsPair) error {
+	ln, err := net.Listen("tcp", m.addr)
+	if err != nil {
+		return fmt.Errorf("listen %s: %w", m.addr, err)
+	}
+	srv := &http.Server{
+		Handler:           m.handler,
+		ReadHeaderTimeout: 15 * time.Second,
+	}
+	if pair != nil {
+		ln = tls.NewListener(ln, &tls.Config{
+			Certificates: []tls.Certificate{pair.cert},
+			MinVersion:   tls.VersionTLS12,
+		})
+	}
+	m.srv, m.ln, m.pair = srv, ln, pair
+	go m.serve(srv, ln)
+	return nil
+}
+
+func (m *serverManager) serve(s *http.Server, ln net.Listener) {
+	if err := s.Serve(ln); err != nil &&
+		!errors.Is(err, http.ErrServerClosed) && !errors.Is(err, net.ErrClosed) {
+		m.log.Fatal("listen failed", zap.Error(err))
+	}
+}
+
+// drain 让旧服务器在后台优雅退出（等待进行中的连接完成或在超时后强制关闭）。
+func (m *serverManager) drain(s *http.Server) {
+	if s == nil {
+		return
+	}
+	go func(s *http.Server) {
+		ctx, cancel := context.WithTimeout(context.Background(), 15*time.Second)
+		defer cancel()
+		if err := s.Shutdown(ctx); err != nil && !errors.Is(err, context.DeadlineExceeded) {
+			m.log.Warn("drain old server failed", zap.Error(err))
+		}
+	}(s)
+}
+
+func (m *serverManager) logServerReady() {
+	scheme := "http"
+	if m.pair != nil {
+		scheme = "https"
+	}
+	localIP := getLocalIP()
+	m.log.Info("server is ready",
+		zap.String("scheme", scheme),
+		zap.String("local", fmt.Sprintf("%s://%s:%d", scheme, localIP, m.cfg.App.Port)),
+		zap.String("listen", m.addr),
+	)
+	if m.pair != nil {
+		m.log.Info("HTTPS is enabled; plain HTTP is no longer served on this port",
+			zap.String("addr", m.addr),
+		)
+	}
+}

cmd/server/server_manager_test.go

@@ -0,0 +1,107 @@
+package main
+
+import (
+	"crypto/ecdsa"
+	"crypto/elliptic"
+	"crypto/rand"
+	"crypto/x509"
+	"crypto/x509/pkix"
+	"encoding/pem"
+	"math/big"
+	"net/http"
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+	"time"
+
+	"go.uber.org/zap"
+
+	"github.com/ShukeBta/MMTL/internal/config"
+)
+
+func makeTestPairPEM(t *testing.T) (certPEM, keyPEM string) {
+	t.Helper()
+	priv, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
+	if err != nil {
+		t.Fatal(err)
+	}
+	tpl := &x509.Certificate{
+		SerialNumber: big.NewInt(1),
+		Subject:      pkix.Name{CommonName: "localhost"},
+		NotBefore:    time.Now().Add(-time.Hour),
+		NotAfter:     time.Now().Add(24 * time.Hour),
+		DNSNames:     []string{"localhost"},
+	}
+	der, err := x509.CreateCertificate(rand.Reader, tpl, tpl, &priv.PublicKey, priv)
+	if err != nil {
+		t.Fatal(err)
+	}
+	keyDER, err := x509.MarshalECPrivateKey(priv)
+	if err != nil {
+		t.Fatal(err)
+	}
+	certPEM = strings.TrimSpace(string(pem.EncodeToMemory(&pem.Block{Type: "CERTIFICATE", Bytes: der})))
+	keyPEM = strings.TrimSpace(string(pem.EncodeToMemory(&pem.Block{Type: "EC PRIVATE KEY", Bytes: keyDER})))
+	return certPEM, keyPEM
+}
+
+func newTestServerManager(t *testing.T) *serverManager {
+	t.Helper()
+	cfg := &config.Config{}
+	cfg.App.Port = 18081
+	return newServerManager(cfg, zap.NewNop(), http.NewServeMux())
+}
+
+func TestDesiredPairModes(t *testing.T) {
+	m := newTestServerManager(t)
+
+	if p, err := m.desiredPair(); err != nil || p != nil {
+		t.Fatalf("disabled should be nil pair, got p=%v err=%v", p, err)
+	}
+
+	certPEM, keyPEM := makeTestPairPEM(t)
+	m.cfg.App.HTTPSEnabled = true
+	m.cfg.App.SSLCert, m.cfg.App.SSLKey = certPEM, keyPEM
+	p, err := m.desiredPair()
+	if err != nil || p == nil || p.version == "" {
+		t.Fatalf("content pair failed: p=%v err=%v", p, err)
+	}
+
+	dir := t.TempDir()
+	certPath, keyPath := filepath.Join(dir, "cert.pem"), filepath.Join(dir, "key.pem")
+	if err := os.WriteFile(certPath, []byte(certPEM), 0o600); err != nil {
+		t.Fatal(err)
+	}
+	if err := os.WriteFile(keyPath, []byte(keyPEM), 0o600); err != nil {
+		t.Fatal(err)
+	}
+	m.cfg.App.SSLCert, m.cfg.App.SSLKey = "", ""
+	m.cfg.App.SSLCertPath, m.cfg.App.SSLKeyPath = certPath, keyPath
+	p2, err := m.desiredPair()
+	if err != nil || p2 == nil {
+		t.Fatalf("path pair failed: %v", err)
+	}
+
+	m.cfg.App.SSLKeyPath = filepath.Join(dir, "nope.pem")
+	if _, err := m.desiredPair(); err == nil {
+		t.Fatal("expected error when key file missing")
+	}
+	m.cfg.App.SSLKeyPath = keyPath
+
+	// 替换文件（换一套新的有效证书）后版本号应变化，触发热更新。
+	newCert, newKey := makeTestPairPEM(t)
+	if err := os.WriteFile(certPath, []byte(newCert), 0o600); err != nil {
+		t.Fatal(err)
+	}
+	if err := os.WriteFile(keyPath, []byte(newKey), 0o600); err != nil {
+		t.Fatal(err)
+	}
+	p3, err := m.desiredPair()
+	if err != nil {
+		t.Fatalf("replace: %v", err)
+	}
+	if p3.version == p2.version {
+		t.Fatal("version should change after files replaced")
+	}
+}

go.mod

@@ -3,6 +3,7 @@ module github.com/ShukeBta/MMTL
 go 1.25.0
 
 require (
+	github.com/aliyun/alibabacloud-oss-go-sdk-v2 v1.5.2
 	github.com/fsnotify/fsnotify v1.7.0
 	github.com/gin-gonic/gin v1.9.1
 	github.com/glebarez/sqlite v1.11.0
@@ -16,6 +17,7 @@ require (
 	go.uber.org/zap v1.27.0
 	golang.org/x/crypto v0.21.0
 	golang.org/x/sys v0.20.0
+	golang.org/x/time v0.15.0
 	gorm.io/driver/postgres v1.5.7
 	gorm.io/gorm v1.30.0
 )
@@ -66,13 +68,13 @@ require (
 	github.com/tklauser/numcpus v0.6.1 // indirect
 	github.com/twitchyliquid64/golang-asm v0.15.1 // indirect
 	github.com/ugorji/go/codec v1.2.11 // indirect
+	github.com/ulikunitz/xz v0.5.12 // indirect
 	github.com/yusufpapurcu/wmi v1.2.4 // indirect
 	go.uber.org/multierr v1.10.0 // indirect
 	golang.org/x/arch v0.3.0 // indirect
 	golang.org/x/exp v0.0.0-20230905200255-921286631fa9 // indirect
 	golang.org/x/net v0.21.0 // indirect
 	golang.org/x/text v0.20.0 // indirect
-	golang.org/x/time v0.15.0 // indirect
 	google.golang.org/protobuf v1.31.0 // indirect
 	gopkg.in/ini.v1 v1.67.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect

go.sum

@@ -1,3 +1,5 @@
+github.com/aliyun/alibabacloud-oss-go-sdk-v2 v1.5.2 h1:40yUSXwdkWN851BHCq6uiDhleh7A4+0yIBS+IUAqZVY=
+github.com/aliyun/alibabacloud-oss-go-sdk-v2 v1.5.2/go.mod h1:FTzydeQVmR24FI0D6XWUOMKckjXehM/jgMn1xC+DA9M=
 github.com/bsm/ginkgo/v2 v2.12.0 h1:Ny8MWAHyOepLGlLKYmXG4IEkioBysk6GpaRTLC8zwWs=
 github.com/bsm/ginkgo/v2 v2.12.0/go.mod h1:SwYbGRRDovPVboqFv0tPTcG1sN61LM1Z4ARdbAV9g4c=
 github.com/bsm/gomega v1.27.10 h1:yeMWxP2pV2fG3FgAODIY8EiRE3dy0aeFYt4l7wh6yKA=
@@ -150,6 +152,8 @@ github.com/twitchyliquid64/golang-asm v0.15.1 h1:SU5vSMR7hnwNxj24w34ZyCi/FmDZTkS
 github.com/twitchyliquid64/golang-asm v0.15.1/go.mod h1:a1lVb/DtPvCB8fslRZhAngC2+aY1QWCk3Cedj/Gdt08=
 github.com/ugorji/go/codec v1.2.11 h1:BMaWp1Bb6fHwEtbplGBGJ498wD+LKlNSl25MjdZY4dU=
 github.com/ugorji/go/codec v1.2.11/go.mod h1:UNopzCgEMSXjBc6AOMqYvWC1ktqTAfzJZUZgYf6w6lg=
+github.com/ulikunitz/xz v0.5.12 h1:37Nm15o69RwBkXM0J6A5OlE67RZTfzUxTj8fB3dfcsc=
+github.com/ulikunitz/xz v0.5.12/go.mod h1:nbz6k7qbPmH4IRqmfOplQw/tblSgqTqBwxkY0oWt/14=
 github.com/yusufpapurcu/wmi v1.2.4 h1:zFUKzehAFReQwLys1b/iSMl+JQGSCSjtVqQn9bBrPo0=
 github.com/yusufpapurcu/wmi v1.2.4/go.mod h1:SBZ9tNy3G9/m5Oi98Zks0QjeHVDvuK0qfxQmPyzfmi0=
 go.uber.org/goleak v1.3.0 h1:2K3zAYmnTNqV73imy9J1T3WC+gmCePx2hEGkimedGto=

internal/config/config_test.go

@@ -40,15 +40,15 @@ func TestLoadDefaults(t *testing.T) {
 	if cfg.Database.MaxOpenConns != defaultDatabaseMaxOpenConns {
 		t.Fatalf("expected default MaxOpenConns %d, got %d", defaultDatabaseMaxOpenConns, cfg.Database.MaxOpenConns)
 	}
-		if cfg.Cache.RedisPrefix != "mmtl" {
-			t.Fatalf("expected default redis prefix, got %q", cfg.Cache.RedisPrefix)
-		}
-		if cfg.Cache.MediaTTLSeconds != 15 {
-			t.Fatalf("expected default media cache ttl 15, got %d", cfg.Cache.MediaTTLSeconds)
-		}
-		if cfg.Search.Index != "mmtl_media" {
-			t.Fatalf("expected default search index, got %q", cfg.Search.Index)
-		}
+	if cfg.Cache.RedisPrefix != "mmtl" {
+		t.Fatalf("expected default redis prefix, got %q", cfg.Cache.RedisPrefix)
+	}
+	if cfg.Cache.MediaTTLSeconds != 15 {
+		t.Fatalf("expected default media cache ttl 15, got %d", cfg.Cache.MediaTTLSeconds)
+	}
+	if cfg.Search.Index != "mmtl_media" {
+		t.Fatalf("expected default search index, got %q", cfg.Search.Index)
+	}
 	if cfg.Database.MaxIdleConns != defaultDatabaseMaxIdleConns {
 		t.Fatalf("expected default MaxIdleConns %d, got %d", defaultDatabaseMaxIdleConns, cfg.Database.MaxIdleConns)
 	}

internal/config/defaults.go

@@ -3,8 +3,8 @@ package config
 import "github.com/spf13/viper"
 
 const (
-	defaultDatabaseMaxOpenConns = 4
-	defaultDatabaseMaxIdleConns = 2
+	defaultDatabaseMaxOpenConns = 16
+	defaultDatabaseMaxIdleConns = 4
 	defaultLicenseServerURL     = "https://mgosever.3jzs.com"
 	defaultLicensePublicKey     = "MCowBQYDK2VwAyEABRXnXy+urjrbKit6Yu/HiezWgP0NdsZW3tsegJWRrtI="
 )
@@ -43,6 +43,7 @@ func setDefaults(v *viper.Viper) {
 	v.SetDefault("logging.max_backups", 10)
 
 	v.SetDefault("cache.cache_dir", "./cache")
+	v.SetDefault("cache.images_max_size_mb", 500)
 	v.SetDefault("cache.cleanup_interval_min", 60)
 	v.SetDefault("cache.redis_url", "")
 	v.SetDefault("cache.redis_prefix", "mmtl")

internal/config/normalize.go

@@ -44,6 +44,9 @@ func (c *Config) normalize() error {
 	if c.Cache.CacheDir == "" {
 		c.Cache.CacheDir = filepath.Join(c.App.DataDir, "cache")
 	}
+	if c.Cache.ImagesMaxSizeMB < 0 {
+		c.Cache.ImagesMaxSizeMB = 0
+	}
 	if c.Cache.RedisPrefix == "" {
 		c.Cache.RedisPrefix = "mmtl"
 	}

internal/config/save.go

@@ -0,0 +1,41 @@
+package config
+
+import (
+	"fmt"
+	"os"
+
+	"gopkg.in/yaml.v3"
+)
+
+// SaveDatabaseConfig updates or creates config.yaml with the specified database configuration.
+func SaveDatabaseConfig(dbType, dsn string) error {
+	configPath := "config.yaml"
+	data := make(map[string]any)
+
+	content, err := os.ReadFile(configPath)
+	if err == nil {
+		if err := yaml.Unmarshal(content, &data); err != nil {
+			data = make(map[string]any)
+		}
+	} else if !os.IsNotExist(err) {
+		return fmt.Errorf("read config.yaml: %w", err)
+	}
+
+	dbSection, ok := data["database"].(map[string]any)
+	if !ok {
+		dbSection = make(map[string]any)
+	}
+	dbSection["type"] = dbType
+	dbSection["dsn"] = dsn
+	data["database"] = dbSection
+
+	out, err := yaml.Marshal(data)
+	if err != nil {
+		return fmt.Errorf("marshal config.yaml: %w", err)
+	}
+
+	if err := os.WriteFile(configPath, out, 0644); err != nil {
+		return fmt.Errorf("write config.yaml: %w", err)
+	}
+	return nil
+}

internal/config/save_test.go

@@ -0,0 +1,36 @@
+package config
+
+import (
+	"os"
+	"path/filepath"
+	"testing"
+)
+
+func TestSaveDatabaseConfig(t *testing.T) {
+	dir := t.TempDir()
+	wd, _ := os.Getwd()
+	defer func() { _ = os.Chdir(wd) }()
+	if err := os.Chdir(dir); err != nil {
+		t.Fatalf("chdir: %v", err)
+	}
+
+	dsn := "postgres://admin:pass@127.0.0.1:5432/mmtl?sslmode=disable"
+	if err := SaveDatabaseConfig("postgres", dsn); err != nil {
+		t.Fatalf("SaveDatabaseConfig error: %v", err)
+	}
+
+	if _, err := os.Stat(filepath.Join(dir, "config.yaml")); err != nil {
+		t.Fatalf("expected config.yaml to exist: %v", err)
+	}
+
+	loaded, err := Load()
+	if err != nil {
+		t.Fatalf("Load error: %v", err)
+	}
+	if loaded.Database.Type != "postgres" {
+		t.Fatalf("expected database.type=postgres, got %s", loaded.Database.Type)
+	}
+	if loaded.Database.DSN != dsn {
+		t.Fatalf("expected dsn=%s, got %s", dsn, loaded.Database.DSN)
+	}
+}

internal/config/types.go

@@ -44,11 +44,22 @@ type TranscoderConfig struct {
 
 // AppConfig 保存运行时应用参数。
 type AppConfig struct {
-	Port        int    `mapstructure:"port"`
-	Debug       bool   `mapstructure:"debug"`
-	Env         string `mapstructure:"env"`
-	DataDir     string `mapstructure:"data_dir"`
-	WebDir      string `mapstructure:"web_dir"`
+	Port    int    `mapstructure:"port"`
+	Debug   bool   `mapstructure:"debug"`
+	Env     string `mapstructure:"env"`
+	DataDir string `mapstructure:"data_dir"`
+	WebDir  string `mapstructure:"web_dir"`
+	// HTTPSEnabled 是否仅通过 HTTPS 提供访问。启用时必须同时配置
+	// SSLCert / SSLKey（或 SSLCertPath / SSLKeyPath），保存后服务会热切换到 HTTPS。
+	HTTPSEnabled bool `mapstructure:"https_enabled"`
+	// SSLCert 是 PEM 编码的 SSL 证书内容。
+	SSLCert string `mapstructure:"ssl_cert"`
+	// SSLKey 是 PEM 编码的 SSL 私钥内容。
+	SSLKey string `mapstructure:"ssl_key"`
+	// SSLCertPath 是 SSL 证书文件路径；非空时优先于 SSLCert 从文件读取。
+	SSLCertPath string `mapstructure:"ssl_cert_path"`
+	// SSLKeyPath 是 SSL 私钥文件路径；非空时优先于 SSLKey 从文件读取。
+	SSLKeyPath  string `mapstructure:"ssl_key_path"`
 	FFmpegPath  string `mapstructure:"ffmpeg_path"`
 	FFprobePath string `mapstructure:"ffprobe_path"`
 	// FFprobeMaxConcurrent limits concurrent ffprobe/ffmpeg metadata probes.
@@ -105,6 +116,7 @@ type LoggingConfig struct {
 // CacheConfig 控制磁盘转码/刮削缓存。
 type CacheConfig struct {
 	CacheDir           string `mapstructure:"cache_dir"`
+	ImagesMaxSizeMB    int    `mapstructure:"images_max_size_mb"`
 	MaxDiskUsageMB     int    `mapstructure:"max_disk_usage_mb"`
 	TTLHours           int    `mapstructure:"ttl_hours"`
 	AutoCleanup        bool   `mapstructure:"auto_cleanup"`

internal/database/database_admin.go

@@ -0,0 +1,223 @@
+package database
+
+import (
+	"context"
+	"fmt"
+	"net/url"
+	"strings"
+	"time"
+
+	"go.uber.org/zap"
+	"gorm.io/driver/postgres"
+	"gorm.io/gorm"
+	"gorm.io/gorm/logger"
+
+	"github.com/ShukeBta/MMTL/internal/config"
+	"github.com/ShukeBta/MMTL/internal/model"
+)
+
+// DatabaseStatus describes the currently active database engine and runtime metrics.
+type DatabaseStatus struct {
+	Type         string           `json:"type"`
+	DSN          string           `json:"dsn,omitempty"`
+	DBPath       string           `json:"db_path,omitempty"`
+	OpenConns    int              `json:"open_conns"`
+	InUse        int              `json:"in_use"`
+	Idle         int              `json:"idle"`
+	MaxOpenConns int              `json:"max_open_conns"`
+	TableCounts  map[string]int64 `json:"table_counts"`
+}
+
+// PostgresTestResult returns latency and version info after testing connection.
+type PostgresTestResult struct {
+	Success   bool   `json:"success"`
+	LatencyMS int64  `json:"latency_ms"`
+	Version   string `json:"version,omitempty"`
+	Message   string `json:"message,omitempty"`
+	Error     string `json:"error,omitempty"`
+}
+
+// DatabaseMigrationResult returns row counts and execution duration of migration.
+type DatabaseMigrationResult struct {
+	Success    bool             `json:"success"`
+	TotalRows  int64            `json:"total_rows"`
+	TableRows  map[string]int64 `json:"table_rows"`
+	DurationMS int64            `json:"duration_ms"`
+	Message    string           `json:"message,omitempty"`
+	Error      string           `json:"error,omitempty"`
+}
+
+// InspectDatabaseStatus queries the currently active database for metrics and table rows.
+func InspectDatabaseStatus(db *gorm.DB, cfg *config.Config) *DatabaseStatus {
+	st := &DatabaseStatus{
+		Type:        "sqlite",
+		TableCounts: make(map[string]int64),
+	}
+	if cfg != nil {
+		st.DBPath = cfg.Database.DBPath
+		if cfg.Database.Type == "postgres" || (cfg.Database.Type == "auto" && strings.TrimSpace(cfg.Database.DSN) != "") {
+			st.Type = "postgres"
+			st.DSN = MaskDSN(cfg.Database.DSN)
+		}
+	}
+	if isPostgres(db) {
+		st.Type = "postgres"
+	}
+
+	if db != nil {
+		if sqlDB, err := db.DB(); err == nil {
+			stats := sqlDB.Stats()
+			st.OpenConns = stats.OpenConnections
+			st.InUse = stats.InUse
+			st.Idle = stats.Idle
+			st.MaxOpenConns = stats.MaxOpenConnections
+		}
+
+		// Count rows for major model tables
+		for _, m := range model.AllModels() {
+			if tbl, err := modelTableName(db, m); err == nil {
+				if db.Migrator().HasTable(tbl) {
+					var count int64
+					if err := db.Raw("SELECT COUNT(1) FROM " + quoteIdent(tbl)).Scan(&count).Error; err == nil {
+						st.TableCounts[tbl] = count
+					}
+				}
+			}
+		}
+	}
+	return st
+}
+
+// TestPostgres establishes a temporary connection to verify reachability and permissions.
+func TestPostgres(dsn string) (*PostgresTestResult, error) {
+	dsn = strings.TrimSpace(dsn)
+	if dsn == "" {
+		return &PostgresTestResult{
+			Success: false,
+			Error:   "PostgreSQL DSN 不能为空",
+		}, nil
+	}
+
+	start := time.Now()
+	testDB, err := gorm.Open(postgres.Open(dsn), &gorm.Config{
+		Logger: logger.Default.LogMode(logger.Silent),
+	})
+	if err != nil {
+		return &PostgresTestResult{
+			Success: false,
+			Error:   fmt.Sprintf("连接失败: %v", err),
+		}, nil
+	}
+
+	sqlDB, err := testDB.DB()
+	if err != nil {
+		return &PostgresTestResult{
+			Success: false,
+			Error:   fmt.Sprintf("获取底层连接失败: %v", err),
+		}, nil
+	}
+	defer sqlDB.Close()
+
+	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+	defer cancel()
+
+	if err := sqlDB.PingContext(ctx); err != nil {
+		return &PostgresTestResult{
+			Success: false,
+			Error:   fmt.Sprintf("Ping 超时或失败: %v", err),
+		}, nil
+	}
+
+	var version string
+	if err := testDB.WithContext(ctx).Raw("SELECT version()").Scan(&version).Error; err != nil {
+		version = "PostgreSQL (unknown version)"
+	}
+
+	latency := time.Since(start).Milliseconds()
+	return &PostgresTestResult{
+		Success:   true,
+		LatencyMS: latency,
+		Version:   version,
+		Message:   "连接成功",
+	}, nil
+}
+
+// MigrateCurrentToPostgres performs schema initialization and full table data copy into target PostgreSQL.
+func MigrateCurrentToPostgres(src *gorm.DB, targetDSN string, batchSize int, log *zap.Logger) (*DatabaseMigrationResult, error) {
+	targetDSN = strings.TrimSpace(targetDSN)
+	if targetDSN == "" {
+		return nil, fmt.Errorf("target PostgreSQL DSN cannot be empty")
+	}
+	if src == nil {
+		return nil, fmt.Errorf("current database is not available")
+	}
+
+	started := time.Now()
+	targetDB, err := gorm.Open(postgres.Open(targetDSN), &gorm.Config{
+		Logger: newGormLogger(log),
+	})
+	if err != nil {
+		return nil, fmt.Errorf("open target PostgreSQL: %w", err)
+	}
+	targetSQLDB, err := targetDB.DB()
+	if err == nil {
+		defer targetSQLDB.Close()
+	}
+
+	// 1. 初始化目标库 Schema、类型与索引
+	if err := AutoMigrate(targetDB); err != nil {
+		return nil, fmt.Errorf("auto migrate target PostgreSQL: %w", err)
+	}
+
+	// 2. 安全重置目标数据库的初始默认数据
+	if err := resetBootstrapTargetBeforeSQLiteMigrationIfSafe(src, targetDB, log); err != nil {
+		return nil, fmt.Errorf("reset target bootstrap data: %w", err)
+	}
+
+	// 3. 执行数据批量复制
+	tableRows, totalRows, err := copyModelTables(src, targetDB, batchSize)
+	if err != nil {
+		return nil, fmt.Errorf("copy tables: %w", err)
+	}
+
+	// 4. 标记迁移完成
+	if err := markSQLiteMigrationComplete(targetDB); err != nil {
+		return nil, fmt.Errorf("mark migration complete: %w", err)
+	}
+
+	duration := time.Since(started).Milliseconds()
+	return &DatabaseMigrationResult{
+		Success:    true,
+		TotalRows:  totalRows,
+		TableRows:  tableRows,
+		DurationMS: duration,
+		Message:    fmt.Sprintf("成功迁移 %d 条记录至 PostgreSQL", totalRows),
+	}, nil
+}
+
+// MaskDSN masks the password in a connection string for safe API responses.
+func MaskDSN(rawDSN string) string {
+	rawDSN = strings.TrimSpace(rawDSN)
+	if rawDSN == "" {
+		return ""
+	}
+	if u, err := url.Parse(rawDSN); err == nil && u.User != nil {
+		if pass, hasPassword := u.User.Password(); hasPassword && pass != "" {
+			rawUserPass := u.User.String()
+			user := u.User.Username()
+			maskedUserPass := user + ":******"
+			return strings.Replace(rawDSN, rawUserPass+"@", maskedUserPass+"@", 1)
+		}
+	}
+	// Fallback for keyword-style DSN (e.g. host=... password=...)
+	if strings.Contains(rawDSN, "password=") {
+		parts := strings.Fields(rawDSN)
+		for i, p := range parts {
+			if strings.HasPrefix(p, "password=") {
+				parts[i] = "password=******"
+			}
+		}
+		return strings.Join(parts, " ")
+	}
+	return rawDSN
+}

internal/database/database_admin_test.go

@@ -0,0 +1,71 @@
+package database
+
+import (
+	"testing"
+
+	"github.com/glebarez/sqlite"
+	"gorm.io/gorm"
+
+	"github.com/ShukeBta/MMTL/internal/config"
+	"github.com/ShukeBta/MMTL/internal/model"
+)
+
+func TestMaskDSN(t *testing.T) {
+	cases := []struct {
+		in   string
+		want string
+	}{
+		{
+			in:   "postgres://admin:secret123@localhost:5432/mmtl?sslmode=disable",
+			want: "postgres://admin:******@localhost:5432/mmtl?sslmode=disable",
+		},
+		{
+			in:   "host=localhost port=5432 user=admin password=secret dbname=mmtl sslmode=disable",
+			want: "host=localhost port=5432 user=admin password=****** dbname=mmtl sslmode=disable",
+		},
+		{
+			in:   "sqlite://data/mmtl.db",
+			want: "sqlite://data/mmtl.db",
+		},
+		{
+			in:   "",
+			want: "",
+		},
+	}
+
+	for _, c := range cases {
+		got := MaskDSN(c.in)
+		if got != c.want {
+			t.Errorf("MaskDSN(%q) = %q, want %q", c.in, got, c.want)
+		}
+	}
+}
+
+func TestInspectDatabaseStatus(t *testing.T) {
+	db, err := gorm.Open(sqlite.Open(":memory:"), &gorm.Config{})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err := db.AutoMigrate(&model.User{}, &model.Media{}); err != nil {
+		t.Fatal(err)
+	}
+	_ = db.Create(&model.User{Username: "testuser", PasswordHash: "h", Role: "user"}).Error
+
+	cfg := &config.Config{}
+	cfg.Database.Type = "sqlite"
+	cfg.Database.DBPath = "./data/mmtl.db"
+
+	st := InspectDatabaseStatus(db, cfg)
+	if st == nil {
+		t.Fatal("expected non-nil DatabaseStatus")
+	}
+	if st.Type != "sqlite" {
+		t.Fatalf("expected sqlite, got %s", st.Type)
+	}
+	if st.DBPath != "./data/mmtl.db" {
+		t.Fatalf("expected db_path, got %s", st.DBPath)
+	}
+	if st.TableCounts["users"] != 1 {
+		t.Fatalf("expected 1 user, got %d", st.TableCounts["users"])
+	}
+}

internal/database/database_test.go

@@ -159,7 +159,7 @@ func TestCopyModelTablesMigratesExistingSQLiteRows(t *testing.T) {
 		t.Fatal(err)
 	}
 
-	copied, err := copyModelTables(src, dst, 2)
+	_, copied, err := copyModelTables(src, dst, 2)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -222,7 +222,7 @@ func TestCopyModelTablesResumesPartialSQLiteMigration(t *testing.T) {
 		t.Fatal(err)
 	}
 
-	copied, err := copyModelTables(src, dst, 2)
+	_, copied, err := copyModelTables(src, dst, 2)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -240,7 +240,7 @@ func TestCopyModelTablesResumesPartialSQLiteMigration(t *testing.T) {
 		t.Fatalf("genres = %q, want %q", got.Genres, media.Genres)
 	}
 
-	copied, err = copyModelTables(src, dst, 2)
+	_, copied, err = copyModelTables(src, dst, 2)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -332,7 +332,7 @@ func TestSQLiteMigrationFallsBackToDataDirDefaultPath(t *testing.T) {
 	if err := resetBootstrapTargetBeforeSQLiteMigrationIfSafe(src2, dst, nil); err != nil {
 		t.Fatal(err)
 	}
-	copied, err := copyModelTables(src2, dst, 2)
+	_, copied, err := copyModelTables(src2, dst, 2)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -408,7 +408,7 @@ func TestOpenSQLiteMigrationSourceUsesFallbackSourcePath(t *testing.T) {
 			_ = sqlDB2.Close()
 		}
 	}()
-	copied, err := copyModelTables(src2, dst, 2)
+	_, copied, err := copyModelTables(src2, dst, 2)
 	if err != nil {
 		t.Fatal(err)
 	}

internal/database/schema_migration.go

@@ -20,6 +20,9 @@ func AutoMigrate(db *gorm.DB) error {
 	if err := ensureLibraryRootsCompatibility(db); err != nil {
 		return err
 	}
+	if err := ensureEmbyMountsCompatibility(db); err != nil {
+		return err
+	}
 	if isSQLite(db) {
 		return ensureMediaSearchIndex(db)
 	}
@@ -77,3 +80,25 @@ func ensurePerformanceIndexes(db *gorm.DB) error {
 	}
 	return nil
 }
+
+func ensureEmbyMountsCompatibility(db *gorm.DB) error {
+	if !db.Migrator().HasTable(&model.EmbyMount{}) {
+		return nil
+	}
+	if !db.Migrator().HasColumn(&model.EmbyMount{}, "sort_order") {
+		if err := db.Migrator().AddColumn(&model.EmbyMount{}, "sort_order"); err != nil {
+			return err
+		}
+	}
+	// 针对已有数据：如果存在多个 sort_order=0/NULL 的记录，按创建时间顺序赋予稳定递增的序号
+	var zeroCount int64
+	if err := db.Model(&model.EmbyMount{}).Where("sort_order = 0 OR sort_order IS NULL").Count(&zeroCount).Error; err == nil && zeroCount > 1 {
+		var mounts []model.EmbyMount
+		if err := db.Order("created_at asc, id asc").Find(&mounts).Error; err == nil {
+			for i, m := range mounts {
+				_ = db.Exec("UPDATE emby_mounts SET sort_order = ? WHERE id = ?", i, m.ID).Error
+			}
+		}
+	}
+	return nil
+}

internal/database/schema_migration_emby_mount_test.go

@@ -0,0 +1,62 @@
+package database
+
+import (
+	"testing"
+	"time"
+
+	"github.com/glebarez/sqlite"
+	"gorm.io/gorm"
+
+	"github.com/ShukeBta/MMTL/internal/model"
+)
+
+func TestEnsureEmbyMountsCompatibility(t *testing.T) {
+	db, err := gorm.Open(sqlite.Open(":memory:"), &gorm.Config{})
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	// Create a table without sort_order simulating an older schema
+	if err := db.Exec(`CREATE TABLE emby_mounts (
+		id varchar(36) PRIMARY KEY,
+		created_at datetime,
+		updated_at datetime,
+		deleted_at datetime,
+		account_id text,
+		remote_view_id text,
+		remote_view_name text,
+		collection_type text,
+		name text,
+		proxy_play numeric DEFAULT false,
+		enabled numeric DEFAULT true
+	)`).Error; err != nil {
+		t.Fatal(err)
+	}
+
+	// Insert older rows
+	now := time.Now()
+	_ = db.Exec("INSERT INTO emby_mounts (id, name, created_at) VALUES (?, ?, ?)", "m1", "Mount 1", now.Add(-2*time.Hour)).Error
+	_ = db.Exec("INSERT INTO emby_mounts (id, name, created_at) VALUES (?, ?, ?)", "m2", "Mount 2", now.Add(-1*time.Hour)).Error
+
+	// Run compatibility migration
+	if err := ensureEmbyMountsCompatibility(db); err != nil {
+		t.Fatalf("ensureEmbyMountsCompatibility failed: %v", err)
+	}
+
+	// Verify column sort_order exists and values are initialized sequentially
+	if !db.Migrator().HasColumn(&model.EmbyMount{}, "sort_order") {
+		t.Fatal("expected sort_order column to be added")
+	}
+
+	var m1, m2 model.EmbyMount
+	if err := db.Where("id = ?", "m1").First(&m1).Error; err != nil {
+		t.Fatal(err)
+	}
+	if err := db.Where("id = ?", "m2").First(&m2).Error; err != nil {
+		t.Fatal(err)
+	}
+
+	if m1.SortOrder != 0 || m2.SortOrder != 1 {
+		t.Fatalf("unexpected sort orders: m1=%d, m2=%d", m1.SortOrder, m2.SortOrder)
+	}
+}

internal/database/sqlite_migration.go

@@ -48,7 +48,7 @@ func MigrateSQLiteToCurrentIfNeeded(cfg *config.Config, target *gorm.DB, log *za
 	if err := resetBootstrapTargetBeforeSQLiteMigrationIfSafe(src, target, log); err != nil {
 		return err
 	}
-	copied, err := copyModelTables(src, target, 500)
+	_, copied, err := copyModelTables(src, target, 500)
 	if err != nil {
 		return err
 	}

internal/database/sqlite_migration_copy.go

@@ -13,52 +13,53 @@ import (
 	"github.com/ShukeBta/MMTL/internal/model"
 )
 
-func copyModelTables(src, target *gorm.DB, batchSize int) (int64, error) {
+func copyModelTables(src, target *gorm.DB, batchSize int) (map[string]int64, int64, error) {
 	if batchSize <= 0 {
 		batchSize = 500
 	}
-	var copied int64
+	tableCounts := make(map[string]int64)
+	var totalCopied int64
 	for _, m := range model.AllModels() {
 		table, err := modelTableName(src, m)
 		if err != nil {
-			return copied, err
+			return tableCounts, totalCopied, err
 		}
 		primaryColumns, err := modelPrimaryColumns(src, m)
 		if err != nil {
-			return copied, fmt.Errorf("inspect model %T primary keys: %w", m, err)
+			return tableCounts, totalCopied, fmt.Errorf("inspect model %T primary keys: %w", m, err)
 		}
 		exists, err := sqliteTableExists(src, table)
 		if err != nil {
-			return copied, err
+			return tableCounts, totalCopied, err
 		}
 		if !exists {
 			continue
 		}
 		var sourceCount int64
 		if err := src.Raw("SELECT COUNT(1) FROM " + quoteIdent(table)).Scan(&sourceCount).Error; err != nil {
-			return copied, fmt.Errorf("count sqlite table %s: %w", table, err)
+			return tableCounts, totalCopied, fmt.Errorf("count sqlite table %s: %w", table, err)
 		}
 		if sourceCount == 0 {
 			continue
 		}
 		var targetCount int64
 		if err := target.Raw("SELECT COUNT(1) FROM " + quoteIdent(table)).Scan(&targetCount).Error; err != nil {
-			return copied, fmt.Errorf("count target table %s: %w", table, err)
+			return tableCounts, totalCopied, fmt.Errorf("count target table %s: %w", table, err)
 		}
 		modelType := reflect.TypeOf(m)
 		if modelType.Kind() != reflect.Ptr {
-			return copied, fmt.Errorf("model %T is not a pointer", m)
+			return tableCounts, totalCopied, fmt.Errorf("model %T is not a pointer", m)
 		}
 		sliceType := reflect.SliceOf(modelType.Elem())
 		slicePtr := reflect.New(sliceType)
 		if err := src.Unscoped().Find(slicePtr.Interface()).Error; err != nil {
-			return copied, fmt.Errorf("read sqlite table %s: %w", table, err)
+			return tableCounts, totalCopied, fmt.Errorf("read sqlite table %s: %w", table, err)
 		}
 		filtered := slicePtr.Elem()
 		if targetCount > 0 {
 			primaryKeySet, err := targetPrimaryKeySet(target, table, primaryColumns)
 			if err != nil {
-				return copied, err
+				return tableCounts, totalCopied, err
 			}
 			filtered = filterRowsMissingInTarget(target, table, primaryColumns, filtered, primaryKeySet)
 		}
@@ -68,11 +69,13 @@ func copyModelTables(src, target *gorm.DB, batchSize int) (int64, error) {
 		filteredPtr := reflect.New(filtered.Type())
 		filteredPtr.Elem().Set(filtered)
 		if err := target.Clauses(clause.OnConflict{DoNothing: true}).CreateInBatches(filteredPtr.Interface(), batchSize).Error; err != nil {
-			return copied, fmt.Errorf("copy sqlite table %s: %w", table, err)
+			return tableCounts, totalCopied, fmt.Errorf("copy sqlite table %s: %w", table, err)
 		}
-		copied += int64(filtered.Len())
+		copiedForTable := int64(filtered.Len())
+		tableCounts[table] = copiedForTable
+		totalCopied += copiedForTable
 	}
-	return copied, nil
+	return tableCounts, totalCopied, nil
 }
 
 func modelPrimaryColumns(db *gorm.DB, m any) ([]string, error) {

internal/database/sqlite_runtime.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"fmt"
 	"path/filepath"
+	"strings"
 
 	"gorm.io/gorm"
 
@@ -32,16 +33,37 @@ func installSQLiteWriteGate(db *gorm.DB) {
 			gate.Unlock()
 		}
 	}
+	rawLock := func(tx *gorm.DB) {
+		if tx.Statement != nil && isReadOnlySQL(tx.Statement.SQL.String()) {
+			return
+		}
+		lock(tx)
+	}
 	_ = db.Callback().Create().Before("gorm:create").Register("mmtl:sqlite_write_lock", lock)
 	_ = db.Callback().Create().After("gorm:create").Register("mmtl:sqlite_write_unlock", unlock)
 	_ = db.Callback().Update().Before("gorm:update").Register("mmtl:sqlite_write_lock", lock)
 	_ = db.Callback().Update().After("gorm:update").Register("mmtl:sqlite_write_unlock", unlock)
 	_ = db.Callback().Delete().Before("gorm:delete").Register("mmtl:sqlite_write_lock", lock)
 	_ = db.Callback().Delete().After("gorm:delete").Register("mmtl:sqlite_write_unlock", unlock)
-	_ = db.Callback().Raw().Before("gorm:raw").Register("mmtl:sqlite_write_lock", lock)
+	_ = db.Callback().Raw().Before("gorm:raw").Register("mmtl:sqlite_write_lock", rawLock)
 	_ = db.Callback().Raw().After("gorm:raw").Register("mmtl:sqlite_write_unlock", unlock)
 }
 
+func isReadOnlySQL(sql string) bool {
+	trimmed := strings.TrimSpace(sql)
+	if len(trimmed) == 0 {
+		return false
+	}
+	upper := strings.ToUpper(trimmed)
+	if strings.HasPrefix(upper, "SELECT") || strings.HasPrefix(upper, "EXPLAIN") {
+		return true
+	}
+	if strings.HasPrefix(upper, "WITH") && !strings.Contains(upper, "INSERT") && !strings.Contains(upper, "UPDATE") && !strings.Contains(upper, "DELETE") {
+		return true
+	}
+	return false
+}
+
 // sqliteWriteGate serializes in-process SQLite writes while respecting the
 // statement context, so request cancellation can break out of a queued write.
 type sqliteWriteGate struct {
@@ -84,7 +106,7 @@ func buildSQLiteDSN(cfg *config.Config) string {
 	}
 	dsn := dbPath + "?_pragma=foreign_keys(1)"
 	if cfg.Database.WALMode {
-		dsn += "&_pragma=journal_mode(WAL)"
+		dsn += "&_pragma=journal_mode(WAL)&_pragma=synchronous(NORMAL)"
 	}
 	if cfg.Database.BusyTimeout > 0 {
 		dsn += fmt.Sprintf("&_pragma=busy_timeout(%d)", cfg.Database.BusyTimeout)
@@ -92,6 +114,7 @@ func buildSQLiteDSN(cfg *config.Config) string {
 	if cfg.Database.CacheSize != 0 {
 		dsn += fmt.Sprintf("&_pragma=cache_size(%d)", cfg.Database.CacheSize)
 	}
+	dsn += "&_pragma=temp_store(MEMORY)&_pragma=mmap_size(268435456)"
 	return dsn
 }
 

internal/handler/admin.go

@@ -3,6 +3,7 @@ package handler
 
 import (
 	"context"
+	"encoding/json"
 	"errors"
 	"net/http"
 	"strings"
@@ -27,6 +28,9 @@ func listUsersHandler(svc *service.Container) gin.HandlerFunc {
 		if svc.Sessions != nil {
 			svc.Sessions.ApplyToUsers(c.Request.Context(), users)
 		}
+		for i := range users {
+			users[i].PopulateComputedFields()
+		}
 		c.JSON(http.StatusOK, users)
 	}
 }
@@ -198,6 +202,64 @@ func updateUserStatusHandler(svc *service.Container) gin.HandlerFunc {
 			c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
 			return
 		}
+		updated.PopulateComputedFields()
+		c.JSON(http.StatusOK, updated)
+	}
+}
+
+type adminUpdateUserLibrariesReq struct {
+	AllowedLibraryIDs *[]string `json:"allowed_library_ids"`
+}
+
+func updateUserLibrariesHandler(svc *service.Container) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		var req adminUpdateUserLibrariesReq
+		if err := c.ShouldBindJSON(&req); err != nil {
+			c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+			return
+		}
+		userID := c.Param("id")
+		user, err := svc.Repo.User.FindByID(c.Request.Context(), userID)
+		if err != nil {
+			c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+			return
+		}
+		if user == nil {
+			c.JSON(http.StatusNotFound, gin.H{"error": "user not found"})
+			return
+		}
+
+		var rawJSON string
+		if req.AllowedLibraryIDs != nil && len(*req.AllowedLibraryIDs) > 0 {
+			var cleanIDs []string
+			for _, id := range *req.AllowedLibraryIDs {
+				trimmed := strings.TrimSpace(id)
+				if trimmed != "" {
+					cleanIDs = append(cleanIDs, trimmed)
+				}
+			}
+			if len(cleanIDs) > 0 {
+				data, err := json.Marshal(cleanIDs)
+				if err != nil {
+					c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+					return
+				}
+				rawJSON = string(data)
+			}
+		}
+
+		updates := map[string]any{"allowed_library_ids": rawJSON}
+		if err := svc.Repo.User.UpdateFields(c.Request.Context(), userID, updates); err != nil {
+			c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+			return
+		}
+
+		updated, err := svc.Repo.User.FindByID(c.Request.Context(), userID)
+		if err != nil || updated == nil {
+			c.JSON(http.StatusInternalServerError, gin.H{"error": "failed to reload user"})
+			return
+		}
+		updated.PopulateComputedFields()
 		c.JSON(http.StatusOK, updated)
 	}
 }

internal/handler/admin_database.go

@@ -0,0 +1,145 @@
+package handler
+
+import (
+	"fmt"
+	"net/http"
+	"net/url"
+	"strings"
+
+	"github.com/gin-gonic/gin"
+
+	"github.com/ShukeBta/MMTL/internal/service"
+)
+
+type DatabaseConnectionPayload struct {
+	Type     string `json:"type"`
+	DSN      string `json:"dsn"`
+	Host     string `json:"host"`
+	Port     int    `json:"port"`
+	User     string `json:"user"`
+	Password string `json:"password"`
+	DBName   string `json:"dbname"`
+	SSLMode  string `json:"sslmode"`
+}
+
+func (p *DatabaseConnectionPayload) BuildDSN() string {
+	raw := strings.TrimSpace(p.DSN)
+	if raw != "" {
+		return raw
+	}
+	host := strings.TrimSpace(p.Host)
+	if host == "" {
+		return ""
+	}
+	port := p.Port
+	if port <= 0 {
+		port = 5432
+	}
+	user := strings.TrimSpace(p.User)
+	dbname := strings.TrimSpace(p.DBName)
+	if dbname == "" {
+		dbname = "mmtl"
+	}
+	sslmode := strings.TrimSpace(p.SSLMode)
+	if sslmode == "" {
+		sslmode = "disable"
+	}
+
+	userInfo := url.User(user)
+	if p.Password != "" {
+		userInfo = url.UserPassword(user, p.Password)
+	}
+
+	u := url.URL{
+		Scheme:   "postgres",
+		User:     userInfo,
+		Host:     fmt.Sprintf("%s:%d", host, port),
+		Path:     "/" + dbname,
+		RawQuery: "sslmode=" + url.QueryEscape(sslmode),
+	}
+	return u.String()
+}
+
+func getDatabaseStatusHandler(svc *service.Container) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		if svc.Database == nil {
+			c.JSON(http.StatusInternalServerError, gin.H{"error": "database service unavailable"})
+			return
+		}
+		status := svc.Database.GetStatus(c.Request.Context())
+		c.JSON(http.StatusOK, status)
+	}
+}
+
+func testDatabaseHandler(svc *service.Container) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		var req DatabaseConnectionPayload
+		if err := c.ShouldBindJSON(&req); err != nil {
+			c.JSON(http.StatusBadRequest, gin.H{"error": "invalid payload: " + err.Error()})
+			return
+		}
+		dsn := req.BuildDSN()
+		if dsn == "" {
+			c.JSON(http.StatusBadRequest, gin.H{"error": "请提供有效的 PostgreSQL 连接信息或 DSN"})
+			return
+		}
+		res, err := svc.Database.TestPostgres(c.Request.Context(), dsn)
+		if err != nil {
+			c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+			return
+		}
+		c.JSON(http.StatusOK, res)
+	}
+}
+
+func migrateDatabaseHandler(svc *service.Container) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		var req DatabaseConnectionPayload
+		if err := c.ShouldBindJSON(&req); err != nil {
+			c.JSON(http.StatusBadRequest, gin.H{"error": "invalid payload: " + err.Error()})
+			return
+		}
+		dsn := req.BuildDSN()
+		if dsn == "" {
+			c.JSON(http.StatusBadRequest, gin.H{"error": "请提供目标 PostgreSQL 连接信息或 DSN"})
+			return
+		}
+		res, err := svc.Database.MigrateToPostgres(c.Request.Context(), dsn)
+		if err != nil {
+			c.JSON(http.StatusInternalServerError, gin.H{"error": "迁移失败: " + err.Error()})
+			return
+		}
+		c.JSON(http.StatusOK, res)
+	}
+}
+
+func saveDatabaseConfigHandler(svc *service.Container) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		var req DatabaseConnectionPayload
+		if err := c.ShouldBindJSON(&req); err != nil {
+			c.JSON(http.StatusBadRequest, gin.H{"error": "invalid payload: " + err.Error()})
+			return
+		}
+		dbType := strings.ToLower(strings.TrimSpace(req.Type))
+		if dbType == "" {
+			dbType = "postgres"
+		}
+		var dsn string
+		if dbType == "postgres" {
+			dsn = req.BuildDSN()
+			if dsn == "" {
+				c.JSON(http.StatusBadRequest, gin.H{"error": "请提供有效的 PostgreSQL 连接信息或 DSN"})
+				return
+			}
+		}
+
+		if err := svc.Database.SaveConfig(c.Request.Context(), dbType, dsn); err != nil {
+			c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+			return
+		}
+		c.JSON(http.StatusOK, gin.H{
+			"message": "数据库配置已成功保存至配置文件，重启服务后将以新数据库运行",
+			"type":    dbType,
+		})
+	}
+}

internal/handler/admin_database_test.go

@@ -0,0 +1,101 @@
+package handler
+
+import (
+	"bytes"
+	"encoding/json"
+	"net/http"
+	"net/http/httptest"
+	"testing"
+
+	"github.com/gin-gonic/gin"
+
+	"github.com/ShukeBta/MMTL/internal/config"
+	"github.com/ShukeBta/MMTL/internal/service"
+)
+
+func TestBuildDSN(t *testing.T) {
+	cases := []struct {
+		payload DatabaseConnectionPayload
+		want    string
+	}{
+		{
+			payload: DatabaseConnectionPayload{
+				DSN: "postgres://myuser:mypass@10.0.0.1:5432/mydb?sslmode=require",
+			},
+			want: "postgres://myuser:mypass@10.0.0.1:5432/mydb?sslmode=require",
+		},
+		{
+			payload: DatabaseConnectionPayload{
+				Host:     "127.0.0.1",
+				Port:     5432,
+				User:     "postgres",
+				Password: "secretpassword",
+				DBName:   "mmtl_prod",
+				SSLMode:  "disable",
+			},
+			want: "postgres://postgres:secretpassword@127.0.0.1:5432/mmtl_prod?sslmode=disable",
+		},
+	}
+
+	for _, c := range cases {
+		got := c.payload.BuildDSN()
+		if got != c.want {
+			t.Errorf("BuildDSN() = %q, want %q", got, c.want)
+		}
+	}
+}
+
+func TestGetDatabaseStatusHandler(t *testing.T) {
+	gin.SetMode(gin.TestMode)
+	cfg := &config.Config{}
+	cfg.Database.Type = "sqlite"
+	cfg.Database.DBPath = "./data/mmtl.db"
+
+	svc := &service.Container{
+		Database: service.NewDatabaseAdminService(cfg, nil, nil, nil),
+	}
+
+	r := gin.New()
+	r.GET("/api/admin/database/status", getDatabaseStatusHandler(svc))
+
+	req := httptest.NewRequest(http.MethodGet, "/api/admin/database/status", nil)
+	rec := httptest.NewRecorder()
+	r.ServeHTTP(rec, req)
+
+	if rec.Code != http.StatusOK {
+		t.Fatalf("expected status 200, got %d: %s", rec.Code, rec.Body.String())
+	}
+
+	var resp map[string]any
+	if err := json.Unmarshal(rec.Body.Bytes(), &resp); err != nil {
+		t.Fatalf("unmarshal response: %v", err)
+	}
+	if resp["type"] != "sqlite" {
+		t.Fatalf("expected type=sqlite, got %v", resp["type"])
+	}
+}
+
+func TestSaveDatabaseConfigHandler(t *testing.T) {
+	gin.SetMode(gin.TestMode)
+	dir := t.TempDir()
+	cfg := &config.Config{}
+	cfg.App.DataDir = dir
+	cfg.Database.Type = "sqlite"
+
+	svc := &service.Container{
+		Database: service.NewDatabaseAdminService(cfg, nil, nil, nil),
+	}
+
+	r := gin.New()
+	r.POST("/api/admin/database/save-config", saveDatabaseConfigHandler(svc))
+
+	body := bytes.NewBufferString(`{"type":"postgres","host":"localhost","port":5432,"user":"admin","password":"pwd","dbname":"mmtl"}`)
+	req := httptest.NewRequest(http.MethodPost, "/api/admin/database/save-config", body)
+	req.Header.Set("Content-Type", "application/json")
+	rec := httptest.NewRecorder()
+	r.ServeHTTP(rec, req)
+
+	if rec.Code != http.StatusOK {
+		t.Fatalf("expected status 200, got %d: %s", rec.Code, rec.Body.String())
+	}
+}

internal/handler/admin_settings.go

@@ -8,6 +8,7 @@ import (
 	"time"
 
 	"github.com/gin-gonic/gin"
+	"go.uber.org/zap"
 
 	"github.com/ShukeBta/MMTL/internal/model"
 	"github.com/ShukeBta/MMTL/internal/service"
@@ -50,6 +51,10 @@ func updateSettingHandler(svc *service.Container) gin.HandlerFunc {
 			_ = svc.Repo.DB.WithContext(c.Request.Context()).Model(&model.User{}).Where("hide_adult = ?", false).Update("hide_adult", true).Error
 		}
 		service.ApplyRuntimeSetting(svc.Cfg, req.Key, req.Value)
+		if err := applyHTTPSetting(svc, req.Key, req.Value); err != nil {
+			c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+			return
+		}
 		if svc.FFprobe != nil && (req.Key == "ffprobe.max_concurrent" || req.Key == "app.ffprobe_max_concurrent") {
 			svc.FFprobe.SetMaxConcurrent(svc.Cfg.App.FFprobeMaxConcurrent)
 		}
@@ -59,10 +64,90 @@ func updateSettingHandler(svc *service.Container) gin.HandlerFunc {
 		if req.Key == "transcode.hw_enabled" || req.Key == "transcode.hw_accel" || req.Key == "transcoder.hardware_accel" || req.Key == "transcoder.encoder" {
 			svc.Transcoder.StopAll()
 		}
+		if req.Key == "cache.images_max_size_mb" && svc.Scheduler != nil {
+			_ = svc.Scheduler.RunNowAsync(c.Request.Context(), "image_cache_cleanup")
+		}
 		c.Status(http.StatusNoContent)
 	}
 }
 
+// applyHTTPSetting 校验 HTTPS 相关设置，并在可行时热重载监听。
+// 必须在 ApplyRuntimeSetting 之后调用，这样 svc.Cfg 已反映刚保存的值。
+//
+// 规则：
+//   - https.enabled=true 时强制要求证书与私钥都已配置（内容或路径均可）且匹配，
+//     否则返回错误（"如果启用就必须配置 SSL 证书和密钥"）；
+//   - 证书/私钥（内容或路径）单独保存时只校验格式；若 HTTPS 已开启且新的整体
+//     配置可解析匹配才触发重载，避免"只存了新证书、私钥还没保存"时用旧私钥带
+//     新证书对外提供服务。
+func applyHTTPSetting(svc *service.Container, key, value string) error {
+	skipReload := func(reason string) {
+		if svc.Log != nil {
+			svc.Log.Warn("https setting saved but not applied yet", zap.String("key", key), zap.String("reason", reason))
+		}
+	}
+	switch key {
+	case "https.enabled":
+		if svc.Cfg.App.HTTPSEnabled {
+			if _, err := service.ResolveSSLKeyPair(svc.Cfg.App.SSLCert, svc.Cfg.App.SSLCertPath, svc.Cfg.App.SSLKey, svc.Cfg.App.SSLKeyPath); err != nil {
+				return fmt.Errorf("启用 HTTPS 失败：%v", err)
+			}
+		}
+	case "https.cert", "https.cert_path", "https.key", "https.key_path":
+		if err := validateSSLMaterialSource(key, value); err != nil {
+			return err
+		}
+		if !svc.Cfg.App.HTTPSEnabled {
+			return nil
+		}
+		if !httpsPairReady(svc) {
+			skipReload("证书与私钥尚未匹配，等待另一半保存后生效")
+			return nil
+		}
+	default:
+		return nil
+	}
+	if svc.ReloadHTTPServer != nil {
+		return svc.ReloadHTTPServer()
+	}
+	return nil
+}
+
+// validateSSLMaterialSource 校验刚保存的证书/私钥来源（内容或路径）本身格式合法。
+func validateSSLMaterialSource(key, value string) error {
+	switch key {
+	case "https.cert":
+		return service.ValidateSSLCert(value)
+	case "https.cert_path":
+		if strings.TrimSpace(value) == "" {
+			return nil // 清空路径也允许，启用时由整体校验把关
+		}
+		pemStr, err := service.ResolveSSLMaterial("", value, "证书")
+		if err != nil {
+			return err
+		}
+		return service.ValidateSSLCert(pemStr)
+	case "https.key":
+		return service.ValidateSSLKey(value)
+	case "https.key_path":
+		if strings.TrimSpace(value) == "" {
+			return nil
+		}
+		pemStr, err := service.ResolveSSLMaterial("", value, "私钥")
+		if err != nil {
+			return err
+		}
+		return service.ValidateSSLKey(pemStr)
+	}
+	return nil
+}
+
+// httpsPairReady 判断基于当前配置解析出的证书/私钥是否完整且匹配。
+func httpsPairReady(svc *service.Container) bool {
+	_, err := service.ResolveSSLKeyPair(svc.Cfg.App.SSLCert, svc.Cfg.App.SSLCertPath, svc.Cfg.App.SSLKey, svc.Cfg.App.SSLKeyPath)
+	return err == nil
+}
+
 type testAdultScraperReq struct {
 	Engine    string `json:"engine"`
 	ServerURL string `json:"server_url"`

internal/handler/admin_test.go

@@ -3,6 +3,7 @@ package handler
 import (
 	"net/http"
 	"net/http/httptest"
+	"strings"
 	"testing"
 
 	"github.com/gin-gonic/gin"
@@ -47,3 +48,88 @@ func TestDeleteUserRefusesRecentRealtimeSession(t *testing.T) {
 		t.Fatal("recent realtime user should not be deleted")
 	}
 }
+
+func TestUpdateUserLibraries(t *testing.T) {
+	gin.SetMode(gin.TestMode)
+	db, err := gorm.Open(sqlite.Open(":memory:"), &gorm.Config{})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err := db.AutoMigrate(model.AllModels()...); err != nil {
+		t.Fatal(err)
+	}
+	repos := repository.New(db)
+	user := model.User{Base: model.Base{ID: "u1"}, Username: "alice", PasswordHash: "x", Role: "user", IsActive: true}
+	lib1 := model.Library{Base: model.Base{ID: "lib-1"}, Name: "电影", Type: "movie", Path: "/movie"}
+	lib2 := model.Library{Base: model.Base{ID: "lib-2"}, Name: "剧集", Type: "tv", Path: "/tv"}
+	lib3 := model.Library{Base: model.Base{ID: "lib-3"}, Name: "动漫", Type: "anime", Path: "/anime"}
+	if err := repos.DB.Create(&user).Error; err != nil {
+		t.Fatal(err)
+	}
+	if err := repos.DB.Create(&[]model.Library{lib1, lib2, lib3}).Error; err != nil {
+		t.Fatal(err)
+	}
+
+	svc := &service.Container{Repo: repos}
+	router := gin.New()
+	router.PATCH("/admin/users/:id/libraries", updateUserLibrariesHandler(svc))
+
+	// 1. 设置限制为 lib-1 和 lib-2
+	body := `{"allowed_library_ids":["lib-1","lib-2"]}`
+	req := httptest.NewRequest(http.MethodPatch, "/admin/users/u1/libraries", strings.NewReader(body))
+	req.Header.Set("Content-Type", "application/json")
+	w := httptest.NewRecorder()
+	router.ServeHTTP(w, req)
+
+	if w.Code != http.StatusOK {
+		t.Fatalf("status = %d body = %s", w.Code, w.Body.String())
+	}
+
+	found, err := repos.User.FindByID(t.Context(), "u1")
+	if err != nil || found == nil {
+		t.Fatal("user not found")
+	}
+	allowed := found.DecodeAllowedLibraryIDs()
+	if len(allowed) != 2 || allowed[0] != "lib-1" || allowed[1] != "lib-2" {
+		t.Fatalf("expected [lib-1, lib-2], got %v", allowed)
+	}
+
+	// 验证可见性
+	vis := service.UserDefaultMediaVisibility(t.Context(), repos, "u1")
+	if len(vis.AllowedLibraryIDs) != 2 {
+		t.Fatalf("expected 2 allowed libraries, got %v", vis.AllowedLibraryIDs)
+	}
+	if !service.LibraryVisibleForUser(t.Context(), repos, lib1, vis) {
+		t.Fatal("lib1 should be visible")
+	}
+	if !service.LibraryVisibleForUser(t.Context(), repos, lib2, vis) {
+		t.Fatal("lib2 should be visible")
+	}
+	if service.LibraryVisibleForUser(t.Context(), repos, lib3, vis) {
+		t.Fatal("lib3 should not be visible")
+	}
+
+	// 2. 清空限制，恢复全部可见
+	bodyEmpty := `{"allowed_library_ids":[]}`
+	reqEmpty := httptest.NewRequest(http.MethodPatch, "/admin/users/u1/libraries", strings.NewReader(bodyEmpty))
+	reqEmpty.Header.Set("Content-Type", "application/json")
+	wEmpty := httptest.NewRecorder()
+	router.ServeHTTP(wEmpty, reqEmpty)
+
+	if wEmpty.Code != http.StatusOK {
+		t.Fatalf("status = %d body = %s", wEmpty.Code, wEmpty.Body.String())
+	}
+
+	foundReset, _ := repos.User.FindByID(t.Context(), "u1")
+	if len(foundReset.DecodeAllowedLibraryIDs()) != 0 {
+		t.Fatalf("expected nil or empty, got %v", foundReset.DecodeAllowedLibraryIDs())
+	}
+
+	visReset := service.UserDefaultMediaVisibility(t.Context(), repos, "u1")
+	if len(visReset.AllowedLibraryIDs) != 0 {
+		t.Fatalf("expected no library restrictions, got %v", visReset.AllowedLibraryIDs)
+	}
+	if !service.LibraryVisibleForUser(t.Context(), repos, lib3, visReset) {
+		t.Fatal("lib3 should now be visible")
+	}
+}

internal/handler/api_config_handler.go

@@ -177,7 +177,7 @@ func (h *ApiConfigHandler) TestApiConfig(c *gin.Context) {
 	_ = h.svc.ApiConfig.UpdateTestResult(c.Request.Context(), provider, result)
 
 	c.JSON(http.StatusOK, gin.H{
-		"code": 0,
+		"code":    0,
 		"message": "ok",
 		"data": gin.H{
 			"result": result,

internal/handler/auth.go

@@ -89,6 +89,7 @@ func meHandler(svc *service.Container) gin.HandlerFunc {
 			c.JSON(http.StatusNotFound, gin.H{"error": "not found"})
 			return
 		}
+		u.PopulateComputedFields()
 		c.JSON(http.StatusOK, u)
 	}
 }

internal/handler/danmaku.go

@@ -30,4 +30,4 @@ func getDanmakuConfigHandler(svc *service.Container) gin.HandlerFunc {
 	return func(c *gin.Context) {
 		c.JSON(http.StatusOK, svc.Danmaku.Config(c.Request.Context()))
 	}
-}
+}

internal/handler/emby_authed_loop_test.go

@@ -144,4 +144,4 @@ func TestEmbyLoginWithAuthorizationHeaderToken(t *testing.T) {
 	if w.Code != http.StatusOK {
 		t.Fatalf("Authorization-token request = %d body=%s", w.Code, w.Body.String())
 	}
-}
+}

internal/handler/emby_mounted_resume_test.go

@@ -0,0 +1,148 @@
+package handler
+
+import (
+	"encoding/json"
+	"net/http"
+	"net/http/httptest"
+	"testing"
+	"time"
+
+	"github.com/gin-gonic/gin"
+	"github.com/glebarez/sqlite"
+	"github.com/golang-jwt/jwt/v5"
+	"go.uber.org/zap"
+	"gorm.io/gorm"
+
+	"github.com/ShukeBta/MMTL/internal/config"
+	"github.com/ShukeBta/MMTL/internal/middleware"
+	"github.com/ShukeBta/MMTL/internal/model"
+	"github.com/ShukeBta/MMTL/internal/repository"
+	"github.com/ShukeBta/MMTL/internal/service"
+)
+
+func TestMountedEmbyPlayingProgressAndResumePipeline(t *testing.T) {
+	gin.SetMode(gin.TestMode)
+	db, err := gorm.Open(sqlite.Open(":memory:"), &gorm.Config{})
+	if err != nil {
+		t.Fatalf("open sqlite: %v", err)
+	}
+	if err := db.AutoMigrate(model.AllModels()...); err != nil {
+		t.Fatalf("migrate: %v", err)
+	}
+
+	repos := repository.New(db)
+	user := &model.User{
+		Base:         model.Base{ID: "user-1"},
+		Username:     "test_viewer",
+		PasswordHash: "x",
+		Role:         "user",
+		Tier:         "free",
+		IsActive:     true,
+	}
+	if err := repos.User.Create(t.Context(), user); err != nil {
+		t.Fatalf("create user: %v", err)
+	}
+
+	cfg := &config.Config{}
+	logger := zap.NewNop()
+	svc := &service.Container{
+		Repo:     repos,
+		Emby:     service.NewEmbyService(cfg, logger, repos),
+		Sessions: service.NewSessionTrackerService(logger),
+		Playback: service.NewPlaybackService(logger, repos),
+	}
+
+	router := gin.New()
+	// 注册带认证的路由，模拟已登录用户
+	router.Use(func(c *gin.Context) {
+		c.Set(middleware.CtxUserID, user.ID)
+		c.Next()
+	})
+	router.POST("/Sessions/Playing/Progress", embyPlayingProgressHandler(svc))
+	router.GET("/Items", embyItemsHandler(svc))
+	router.GET("/Users/:userId/Items/Resume", embyResumeItemsHandler(svc))
+	router.GET("/Sessions", embySessionsHandler(svc))
+
+	remoteMediaID := service.EncodeEmbyRemoteID("mount-1", "remote-item-123")
+
+	// 1. 测试上报进度：客户端使用小写 query 参数 itemId / positionTicks
+	progressReq := httptest.NewRequest(
+		http.MethodPost,
+		"/Sessions/Playing/Progress?itemId="+remoteMediaID+"&positionTicks=300000000&runTimeTicks=1000000000",
+		nil,
+	)
+	wProgress := httptest.NewRecorder()
+	router.ServeHTTP(wProgress, progressReq)
+	if wProgress.Code != http.StatusNoContent {
+		t.Fatalf("progress status = %d, body = %s", wProgress.Code, wProgress.Body.String())
+	}
+
+	// 验证已持久化到 PlaybackHistory
+	var hist model.PlaybackHistory
+	if err := db.Where("user_id = ? AND media_id = ?", user.ID, remoteMediaID).First(&hist).Error; err != nil {
+		t.Fatalf("playback history not saved: %v", err)
+	}
+	if hist.PositionMs != 30000 {
+		t.Fatalf("expected position_ms = 30000, got %d", hist.PositionMs)
+	}
+
+	// 2. 测试 Filters=IsResumable 能够包含该远程条目
+	resumableReq := httptest.NewRequest(
+		http.MethodGet,
+		"/Items?Filters=IsResumable",
+		nil,
+	)
+	wResumable := httptest.NewRecorder()
+	router.ServeHTTP(wResumable, resumableReq)
+	if wResumable.Code != http.StatusOK {
+		t.Fatalf("items resumable status = %d, body = %s", wResumable.Code, wResumable.Body.String())
+	}
+	var resumableEnvelope map[string]any
+	if err := json.Unmarshal(wResumable.Body.Bytes(), &resumableEnvelope); err != nil {
+		t.Fatalf("decode resumable: %v", err)
+	}
+	// 因为没有配置真实的远程客户端连接，该远程条目在当前离线测试中不会 panic 崩溃，并且正常响应 Envelope
+	if resumableEnvelope["TotalRecordCount"] == nil {
+		t.Fatalf("missing TotalRecordCount in resumable envelope")
+	}
+
+	// 3. 测试 /Users/:userId/Items/Resume 别名路由
+	resumeAliasReq := httptest.NewRequest(
+		http.MethodGet,
+		"/Users/"+user.ID+"/Items/Resume",
+		nil,
+	)
+	wResumeAlias := httptest.NewRecorder()
+	router.ServeHTTP(wResumeAlias, resumeAliasReq)
+	if wResumeAlias.Code != http.StatusOK {
+		t.Fatalf("resume alias status = %d, body = %s", wResumeAlias.Code, wResumeAlias.Body.String())
+	}
+
+	// 4. 测试 /Sessions 返回 NowPlayingItem
+	sessionsReq := httptest.NewRequest(http.MethodGet, "/Sessions", nil)
+	wSessions := httptest.NewRecorder()
+	router.ServeHTTP(wSessions, sessionsReq)
+	if wSessions.Code != http.StatusOK {
+		t.Fatalf("sessions status = %d, body = %s", wSessions.Code, wSessions.Body.String())
+	}
+	var sessionsList []map[string]any
+	if err := json.Unmarshal(wSessions.Body.Bytes(), &sessionsList); err != nil {
+		t.Fatalf("decode sessions: %v", err)
+	}
+	if len(sessionsList) == 0 {
+		t.Fatalf("expected at least 1 session")
+	}
+	nowPlaying, ok := sessionsList[0]["NowPlayingItem"].(map[string]any)
+	if !ok || nowPlaying["Id"] != remoteMediaID {
+		t.Fatalf("expected NowPlayingItem with id %q, got %#v", remoteMediaID, sessionsList[0]["NowPlayingItem"])
+	}
+}
+
+func signMockToken(secret, userID string) string {
+	token := jwt.NewWithClaims(jwt.SigningMethodHS256, jwt.MapClaims{
+		"sub": userID,
+		"exp": time.Now().Add(time.Hour).Unix(),
+	})
+	s, _ := token.SignedString([]byte(secret))
+	return s
+}

internal/handler/emby_mounts.go

@@ -0,0 +1,222 @@
+// Emby 挂载管理 HTTP 层：远程 Emby 服务器（账号）下的媒体库挂载 CRUD，
+// 以及账号远程媒体库（View）列表预览。
+package handler
+
+import (
+	"net/http"
+	"strings"
+
+	"github.com/gin-gonic/gin"
+
+	"github.com/ShukeBta/MMTL/internal/model"
+	"github.com/ShukeBta/MMTL/internal/service"
+)
+
+// embyMountView 挂载的对外 JSON（附带账号信息）。
+type embyMountView struct {
+	model.EmbyMount
+	AccountName string `json:"account_name"`
+}
+
+// embyMountInput 创建挂载的请求体（单个或批量）。
+type embyMountInput struct {
+	AccountID string          `json:"account_id" binding:"required"`
+	Views     []embyViewInput `json:"views" binding:"required,min=1"`
+}
+
+type embyViewInput struct {
+	RemoteViewID   string `json:"remote_view_id" binding:"required"`
+	RemoteViewName string `json:"remote_view_name"`
+	CollectionType string `json:"collection_type"`
+	Name           string `json:"name"`
+	ProxyPlay      bool   `json:"proxy_play"`
+}
+
+func embyMountViews(mounts []model.EmbyMount, accounts map[string]string) []embyMountView {
+	out := make([]embyMountView, 0, len(mounts))
+	for _, m := range mounts {
+		out = append(out, embyMountView{EmbyMount: m, AccountName: accounts[m.AccountID]})
+	}
+	return out
+}
+
+// embyAccountViewsHandler 列出账号上的远程媒体库（View），供挂载选择。
+func embyAccountViewsHandler(svc *service.Container) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		acct := svc.EmbyRemote.AccountByID(c.Request.Context(), c.Param("id"))
+		if acct == nil {
+			c.JSON(http.StatusNotFound, gin.H{"error": "账号不存在或已禁用"})
+			return
+		}
+		views, err := svc.EmbyRemote.RemoteViews(c.Request.Context(), acct)
+		if err != nil {
+			c.JSON(http.StatusBadGateway, gin.H{"error": err.Error()})
+			return
+		}
+		type viewEntry struct {
+			RemoteViewID   string `json:"remote_view_id"`
+			RemoteViewName string `json:"remote_view_name"`
+			CollectionType string `json:"collection_type"`
+			ChildCount     int    `json:"child_count"`
+			AlreadyMounted bool   `json:"already_mounted"`
+		}
+		mounted := map[string]bool{}
+		if mounts, err := svc.EmbyRemote.ListMountsByAccount(c.Request.Context(), acct.ID); err == nil {
+			for _, m := range mounts {
+				mounted[m.RemoteViewID] = true
+			}
+		}
+		out := make([]viewEntry, 0, len(views))
+		for _, v := range views {
+			viewID := service.RemoteItemIDString(v)
+			if strings.TrimSpace(viewID) == "" {
+				continue
+			}
+			out = append(out, viewEntry{
+				RemoteViewID:   viewID,
+				RemoteViewName: service.RemoteItemNameString(v),
+				CollectionType: service.RemoteItemCollectionType(v),
+				ChildCount:     service.RemoteItemChildCount(v),
+				AlreadyMounted: mounted[viewID],
+			})
+		}
+		c.JSON(http.StatusOK, out)
+	}
+}
+
+// listEmbyMountsHandler 列出全部挂载。
+func listEmbyMountsHandler(svc *service.Container) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		mounts, err := svc.EmbyRemote.ListMounts(c.Request.Context())
+		if err != nil {
+			c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+			return
+		}
+		names := map[string]string{}
+		if accounts, err := svc.EmbyRemote.ListAccounts(c.Request.Context()); err == nil {
+			for _, a := range accounts {
+				names[a.ID] = a.Name
+			}
+		}
+		out := embyMountViews(mounts, names)
+		if out == nil {
+			out = []embyMountView{}
+		}
+		c.JSON(http.StatusOK, out)
+	}
+}
+
+// createEmbyMountsHandler 批量创建挂载（同一账号下的多个远程媒体库）。
+func createEmbyMountsHandler(svc *service.Container) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		var req embyMountInput
+		if err := c.ShouldBindJSON(&req); err != nil {
+			c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+			return
+		}
+		mounts := make([]*model.EmbyMount, 0, len(req.Views))
+		for _, v := range req.Views {
+			mounts = append(mounts, &model.EmbyMount{
+				AccountID:      req.AccountID,
+				RemoteViewID:   v.RemoteViewID,
+				RemoteViewName: v.RemoteViewName,
+				CollectionType: v.CollectionType,
+				Name:           v.Name,
+				ProxyPlay:      v.ProxyPlay,
+				Enabled:        true,
+			})
+		}
+		if _, err := svc.EmbyRemote.CreateMounts(c.Request.Context(), mounts); err != nil {
+			c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+			return
+		}
+		c.JSON(http.StatusOK, gin.H{"ok": true, "created": len(mounts)})
+	}
+}
+
+// fullMountEmbyAccountHandler 全量挂载：把账号所有远程媒体库一次挂载进来。
+func fullMountEmbyAccountHandler(svc *service.Container) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		acct := svc.EmbyRemote.AccountByID(c.Request.Context(), c.Param("id"))
+		if acct == nil {
+			c.JSON(http.StatusNotFound, gin.H{"error": "账号不存在或已禁用"})
+			return
+		}
+		proxy := c.Query("proxy") == "1" || c.Query("proxy") == "true"
+		n, err := svc.EmbyRemote.FullMountAccount(c.Request.Context(), acct, proxy)
+		if err != nil {
+			c.JSON(http.StatusBadGateway, gin.H{"error": err.Error()})
+			return
+		}
+		c.JSON(http.StatusOK, gin.H{"ok": true, "created": n})
+	}
+}
+
+// updateEmbyMountHandler 更新挂载（显示名 / 代理开关 / 启用）。
+func updateEmbyMountHandler(svc *service.Container) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		var req struct {
+			Name      *string `json:"name"`
+			ProxyPlay *bool   `json:"proxy_play"`
+			Enabled   *bool   `json:"enabled"`
+		}
+		if err := c.ShouldBindJSON(&req); err != nil {
+			c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+			return
+		}
+		mount, err := svc.EmbyRemote.MountByID(c.Request.Context(), c.Param("id"))
+		if err != nil || mount == nil {
+			c.JSON(http.StatusNotFound, gin.H{"error": "挂载不存在"})
+			return
+		}
+		if req.Name != nil {
+			mount.Name = *req.Name
+		}
+		if req.ProxyPlay != nil {
+			mount.ProxyPlay = *req.ProxyPlay
+		}
+		if req.Enabled != nil {
+			mount.Enabled = *req.Enabled
+		}
+		if _, err := svc.EmbyRemote.UpdateMount(c.Request.Context(), mount.ID, mount); err != nil {
+			c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+			return
+		}
+		c.JSON(http.StatusOK, mount)
+	}
+}
+
+// deleteEmbyMountHandler 删除挂载。
+func deleteEmbyMountHandler(svc *service.Container) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		if err := svc.EmbyRemote.DeleteMount(c.Request.Context(), c.Param("id")); err != nil {
+			c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+			return
+		}
+		c.JSON(http.StatusOK, gin.H{"ok": true})
+	}
+}
+
+type reorderEmbyMountsReq struct {
+	IDs []string `json:"ids" binding:"required"`
+}
+
+// reorderEmbyMountsHandler 批量重排挂载媒体库顺序。
+func reorderEmbyMountsHandler(svc *service.Container) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		var req reorderEmbyMountsReq
+		if err := c.ShouldBindJSON(&req); err != nil {
+			c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+			return
+		}
+		if svc.EmbyRemote == nil {
+			c.JSON(http.StatusServiceUnavailable, gin.H{"error": "emby remote service not available"})
+			return
+		}
+		if err := svc.EmbyRemote.ReorderMounts(c.Request.Context(), req.IDs); err != nil {
+			c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+			return
+		}
+		c.JSON(http.StatusOK, gin.H{"ok": true})
+	}
+}

internal/handler/emby_mounts_reorder_test.go

@@ -0,0 +1,65 @@
+package handler
+
+import (
+	"bytes"
+	"encoding/json"
+	"net/http"
+	"net/http/httptest"
+	"testing"
+
+	"github.com/gin-gonic/gin"
+	"github.com/glebarez/sqlite"
+	"go.uber.org/zap"
+	"gorm.io/gorm"
+
+	"github.com/ShukeBta/MMTL/internal/database"
+	"github.com/ShukeBta/MMTL/internal/model"
+	"github.com/ShukeBta/MMTL/internal/repository"
+	"github.com/ShukeBta/MMTL/internal/service"
+)
+
+func TestReorderEmbyMountsHandler(t *testing.T) {
+	gin.SetMode(gin.TestMode)
+	db, err := gorm.Open(sqlite.Open(":memory:"), &gorm.Config{})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err := database.AutoMigrate(db); err != nil {
+		t.Fatal(err)
+	}
+	repos := repository.New(db)
+	ctx := t.Context()
+
+	m1 := &model.EmbyMount{AccountID: "acct-1", RemoteViewID: "view-1", Name: "Mount 1"}
+	m2 := &model.EmbyMount{AccountID: "acct-1", RemoteViewID: "view-2", Name: "Mount 2"}
+	_ = repos.EmbyMount.Create(ctx, m1)
+	_ = repos.EmbyMount.Create(ctx, m2)
+
+	svc := &service.Container{
+		Repo:       repos,
+		EmbyRemote: service.NewEmbyRemoteService(nil, zap.NewNop(), repos, nil),
+	}
+
+	router := gin.New()
+	router.PUT("/admin/emby/mounts/reorder", reorderEmbyMountsHandler(svc))
+
+	body, _ := json.Marshal(map[string]any{
+		"ids": []string{m2.ID, m1.ID},
+	})
+	req := httptest.NewRequest(http.MethodPut, "/admin/emby/mounts/reorder", bytes.NewReader(body))
+	req.Header.Set("Content-Type", "application/json")
+	w := httptest.NewRecorder()
+	router.ServeHTTP(w, req)
+
+	if w.Code != http.StatusOK {
+		t.Fatalf("expected status 200, got %d: %s", w.Code, w.Body.String())
+	}
+
+	list, err := repos.EmbyMount.List(ctx)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if len(list) != 2 || list[0].ID != m2.ID || list[1].ID != m1.ID {
+		t.Fatalf("expected order [m2, m1], got [m%s, m%s]", list[0].ID, list[1].ID)
+	}
+}

internal/handler/emby_playback.go

@@ -34,10 +34,19 @@ func embyPlaybackInfoHandler(svc *service.Container) gin.HandlerFunc {
 // embySubtitleStreamHandler serves an external subtitle track advertised in a
 // MediaSource's MediaStreams via its Emby index
 // (/Videos/:id/Subtitles/:index/Stream). The index maps to a discovered
-// sideloaded subtitle file next to the video (SRT/ASS/SSA/VTT, local or
-// cloud://), following the same layout appended by mediaStreams.
+// sideloaded subtitle track next to the video (SRT/ASS/SSA/VTT, local or
+// cloud://), following the same layout appended by mediaStreams. 远程 Emby
+// 条目的字幕直接反向代理远程。
 func embySubtitleStreamHandler(svc *service.Container) gin.HandlerFunc {
 	return func(c *gin.Context) {
+		encodedID := c.Param("id")
+		if accountID, remoteID, ok := service.DecodeEmbyRemoteID(encodedID); ok {
+			if err := svc.Emby.ProxyRemoteSubtitle(c.Request.Context(), c.Writer, c.Request, accountID, remoteID, c.Param("index")); err != nil {
+				embyError(c, http.StatusNotFound, "subtitle not found")
+				return
+			}
+			return
+		}
 		uid := c.Param("userId")
 		if uid == "" {
 			uid = embyUserID(c)
@@ -213,12 +222,26 @@ func embyAppendAPIKey(raw, token string) string {
 	return u.String()
 }
 
-// embyVideoStreamHandler 是 GET /Videos/{id}/stream 的入口，
-// 直接代理到我们的 /api/stream/{id}（同一个 ServeFile）。
+// embyVideoStreamHandler 是 GET /Videos/{id}/stream 的入口。
+// 远程 Emby 条目（embyremote~ 前缀）走反向代理；本地条目直接代理到
+// /api/stream/{id}（同一个 ServeFile）。
 func embyVideoStreamHandler(svc *service.Container, cloudMode string) gin.HandlerFunc {
 	return func(c *gin.Context) {
+		encodedID := c.Param("id")
+		if accountID, remoteID, ok := service.DecodeEmbyRemoteID(encodedID); ok {
+			if err := svc.Emby.ProxyRemoteVideoStream(c.Request.Context(), c.Writer, c.Request, accountID, remoteID); err != nil {
+				if errors.Is(err, service.ErrEmbyRemoteNotFound) {
+					c.Status(http.StatusNotFound)
+					return
+				}
+				if !c.Writer.Written() {
+					c.JSON(http.StatusBadGateway, gin.H{"error": err.Error()})
+				}
+			}
+			return
+		}
 		uid := embyUserID(c)
-		item, err := svc.Emby.Item(c.Request.Context(), c.Param("id"), uid)
+		item, err := svc.Emby.Item(c.Request.Context(), encodedID, uid)
 		if err != nil {
 			c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
 			return
@@ -296,6 +319,11 @@ func embyShouldRedirectVideoStreamToSTRM(c *gin.Context, svc *service.Container,
 
 func embyVideoHLSPlaylistHandler(svc *service.Container) gin.HandlerFunc {
 	return func(c *gin.Context) {
+		// 远程 Emby 条目不做本地转码（播放地址已由 PlaybackInfo 指向远程/代理直连）。
+		if service.IsEmbyRemoteID(c.Param("id")) {
+			c.Status(http.StatusNotFound)
+			return
+		}
 		uid := embyUserID(c)
 		item, err := svc.Emby.Item(c.Request.Context(), c.Param("id"), uid)
 		if err != nil || item == nil || svc.Stream == nil {
@@ -319,6 +347,10 @@ func embyVideoHLSPlaylistHandler(svc *service.Container) gin.HandlerFunc {
 
 func embyVideoHLSSegmentHandler(svc *service.Container) gin.HandlerFunc {
 	return func(c *gin.Context) {
+		if service.IsEmbyRemoteID(c.Param("id")) {
+			c.Status(http.StatusNotFound)
+			return
+		}
 		uid := embyUserID(c)
 		item, err := svc.Emby.Item(c.Request.Context(), c.Param("id"), uid)
 		if err != nil || item == nil || svc.Stream == nil {

internal/handler/emby_playstate_handlers.go

@@ -12,8 +12,13 @@ import (
 
 type embyPlayingReq struct {
 	ItemId        string `json:"ItemId"`
+	ItemIDLower   string `json:"itemId"`
+	ID            string `json:"Id"`
+	IDLower       string `json:"id"`
 	PositionTicks int64  `json:"PositionTicks"`
+	PositionLower int64  `json:"positionTicks"`
 	RunTimeTicks  int64  `json:"RunTimeTicks"`
+	RunTimeLower  int64  `json:"runTimeTicks"`
 }
 
 func embyPlayingProgressHandler(svc *service.Container) gin.HandlerFunc {
@@ -25,16 +30,25 @@ func embyPlayingProgressHandler(svc *service.Container) gin.HandlerFunc {
 		}
 		var req embyPlayingReq
 		_ = c.ShouldBindJSON(&req)
-		if req.ItemId == "" {
-			req.ItemId = c.Query("ItemId")
+		itemID := embyFirstNonEmptyString(req.ItemId, req.ItemIDLower, req.ID, req.IDLower)
+		if itemID == "" {
+			itemID = embyFirstNonEmptyString(firstQueryValue(c, "ItemId", "itemId", "Id", "id"))
 		}
-		if req.PositionTicks == 0 {
-			req.PositionTicks, _ = strconv.ParseInt(c.Query("PositionTicks"), 10, 64)
+		pos := req.PositionTicks
+		if pos == 0 {
+			pos = req.PositionLower
 		}
-		if req.RunTimeTicks == 0 {
-			req.RunTimeTicks, _ = strconv.ParseInt(c.Query("RunTimeTicks"), 10, 64)
+		if pos == 0 {
+			pos, _ = strconv.ParseInt(firstQueryValue(c, "PositionTicks", "positionTicks"), 10, 64)
 		}
-		if req.ItemId == "" {
+		runTime := req.RunTimeTicks
+		if runTime == 0 {
+			runTime = req.RunTimeLower
+		}
+		if runTime == 0 {
+			runTime, _ = strconv.ParseInt(firstQueryValue(c, "RunTimeTicks", "runTimeTicks"), 10, 64)
+		}
+		if itemID == "" {
 			c.Status(http.StatusOK)
 			return
 		}
@@ -43,7 +57,10 @@ func embyPlayingProgressHandler(svc *service.Container) gin.HandlerFunc {
 			c.Status(http.StatusUnauthorized)
 			return
 		}
-		_ = svc.Emby.RecordProgress(c.Request.Context(), uid, req.ItemId, req.PositionTicks, req.RunTimeTicks)
+		if err := svc.Emby.RecordProgress(c.Request.Context(), uid, itemID, pos, runTime); err != nil {
+			c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+			return
+		}
 		stopped := strings.Contains(strings.ToLower(c.FullPath()+" "+c.Request.URL.Path), "stopped")
 		if svc.Sessions != nil {
 			svc.Sessions.RecordPlayback(c.Request.Context(), uid, "",
@@ -51,9 +68,9 @@ func embyPlayingProgressHandler(svc *service.Container) gin.HandlerFunc {
 				clientInfo.DeviceName,
 				clientInfo.Client,
 				c.ClientIP(),
-				req.ItemId,
-				req.PositionTicks,
-				req.RunTimeTicks,
+				itemID,
+				pos,
+				runTime,
 				stopped)
 		}
 		if svc.Device != nil && !stopped {

internal/handler/emby_routes.go

@@ -161,6 +161,8 @@ func registerEmbyAuthenticatedItemRoutes(auth *gin.RouterGroup, svc *service.Con
 	auth.GET("/Users/:userId/Items/Counts", embyItemsCountsHandler(svc))
 	auth.GET("/Items/Latest", embyLatestItemsHandler(svc))
 	auth.GET("/Items/Resume", embyResumeItemsHandler(svc))
+	auth.GET("/Users/:userId/Items/Resume", embyResumeItemsHandler(svc))
+	auth.GET("/UserItems/Resume", embyResumeItemsHandler(svc))
 	auth.GET("/Items/:id", embyItemByIDHandler(svc))
 	auth.GET("/Users/:userId/Items/:id", embyUserItemByIDHandler(svc))
 	auth.GET("/Shows/:id/Seasons", embyShowSeasonsHandler(svc))

internal/handler/emby_routes_lowercase.go

@@ -32,6 +32,8 @@ func registerLowercaseEmbyItemRoutes(auth *gin.RouterGroup, svc *service.Contain
 	auth.GET("/users/:userId/items/counts", embyItemsCountsHandler(svc))
 	auth.GET("/items/latest", embyLatestItemsHandler(svc))
 	auth.GET("/items/resume", embyResumeItemsHandler(svc))
+	auth.GET("/users/:userId/items/resume", embyResumeItemsHandler(svc))
+	auth.GET("/useritems/resume", embyResumeItemsHandler(svc))
 	auth.GET("/items/:id", embyItemByIDHandler(svc))
 	auth.GET("/users/:userId/items/:id", embyUserItemByIDHandler(svc))
 	auth.GET("/shows/:id/seasons", embyShowSeasonsHandler(svc))

internal/handler/emby_sessions.go

@@ -41,7 +41,17 @@ func embySessionsHandler(svc *service.Container) gin.HandlerFunc {
 				"SupportsRemoteControl": true,
 			}
 			if itemID != "" && sess.IsPlaying {
-				row["NowPlayingItem"] = gin.H{"Id": itemID}
+				nowPlaying := gin.H{"Id": itemID}
+				if svc.Emby != nil {
+					if item, _ := svc.Emby.Item(c.Request.Context(), itemID, sess.UserID); item != nil {
+						for _, key := range []string{"Name", "Type", "RunTimeTicks", "PrimaryImageItemId", "ImageTags", "SeriesName", "SeasonName", "IndexNumber", "ParentIndexNumber"} {
+							if val, ok := item[key]; ok && val != nil {
+								nowPlaying[key] = val
+							}
+						}
+					}
+				}
+				row["NowPlayingItem"] = nowPlaying
 			}
 			out = append(out, row)
 		}

internal/handler/emby_subtitle_routes_test.go

@@ -75,7 +75,7 @@ func TestEmbySubtitleOfficialRouteServesRawASS(t *testing.T) {
 	registerEmbyRoutes(router, secret, &service.Container{
 		Repo: repos,
 		Emby: service.NewEmbyService(&config.Config{}, zap.NewNop(), repos).SetSubtitleService(
-			service.NewSubtitleService(zap.NewNop(), repos),
+			service.NewSubtitleService(&config.Config{}, zap.NewNop(), repos),
 		),
 	})
 
@@ -150,7 +150,7 @@ func TestEmbySubtitleDeliveryUrlGetsToken(t *testing.T) {
 	registerEmbyRoutes(router, secret, &service.Container{
 		Repo: repos,
 		Emby: service.NewEmbyService(&config.Config{}, zap.NewNop(), repos).SetSubtitleService(
-			service.NewSubtitleService(zap.NewNop(), repos),
+			service.NewSubtitleService(&config.Config{}, zap.NewNop(), repos),
 		),
 	})
 

internal/handler/media.go

@@ -7,6 +7,7 @@ import (
 	"net/http"
 	"strconv"
 	"strings"
+	"sync"
 
 	"github.com/gin-gonic/gin"
 
@@ -16,41 +17,144 @@ import (
 )
 
 type createLibraryReq struct {
-	Name     string                     `json:"name" binding:"required"`
-	Path     string                     `json:"path"`
-	Paths    []string                   `json:"paths"`
-	Roots    []service.LibraryRootInput `json:"roots"`
-	Type     string                     `json:"type"`
-	CoverURL string                     `json:"cover_url"`
+	Name               string                     `json:"name"`
+	Path               string                     `json:"path"`
+	Paths              []string                   `json:"paths"`
+	Roots              []service.LibraryRootInput `json:"roots"`
+	Type               string                     `json:"type"`
+	CoverURL           string                     `json:"cover_url"`
+	CreatePerSubfolder bool                       `json:"create_per_subfolder"`
+}
+
+// webLibraryPayload 是 /api/libraries 返回的库条目：本地库与远程 Emby 挂载库
+// 统一结构（远程库附加 is_remote_emby / remote_source 只读标记）。
+type webLibraryPayload struct {
+	model.Library
+	IsRemoteEmby bool                 `json:"is_remote_emby,omitempty"`
+	RemoteSource string               `json:"remote_source,omitempty"`
+	Total        int64                `json:"total,omitempty"`
+	Cards        []service.SeriesCard `json:"cards,omitempty"`
+}
+
+// remoteLibraryItemTypes 远程库内容拉取时按 CollectionType 过滤直属条目，
+// 避免电影库里的合集文件夹(Folder) 漏出为电影卡片。
+func remoteLibraryItemTypes(collectionType string) string {
+	switch collectionType {
+	case "movies":
+		return "Movie"
+	case "tvshows":
+		return "Series"
+	}
+	return ""
 }
 
 func listLibrariesHandler(svc *service.Container) gin.HandlerFunc {
 	return func(c *gin.Context) {
-		libs, err := svc.Media.ListLibraries(c.Request.Context())
+		ctx := c.Request.Context()
+		libs, err := svc.Media.ListLibraries(ctx)
 		if err != nil {
 			c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
 			return
 		}
 		role, _ := c.Get(middleware.CtxUserRole)
-		includeHidden := role == "admin" && (c.Query("include_hidden") == "1" || c.Query("all") == "1")
+		includeHidden := role == "admin" && (c.Query("include_hidden") == "1" || c.Query("include_hidden") == "true" || c.Query("all") == "1")
 		if !includeHidden {
-			libs = service.FilterDisplayCloudLibraries(c.Request.Context(), svc.Repo, libs)
+			libs = service.FilterDisplayCloudLibraries(ctx, svc.Repo, libs)
 			visibility := mediaVisibilityForRequest(c, svc)
 			filtered := libs[:0]
 			for _, lib := range libs {
-				if service.LibraryVisibleForUser(c.Request.Context(), svc.Repo, lib, visibility) {
+				if service.LibraryVisibleForUser(ctx, svc.Repo, lib, visibility) {
 					filtered = append(filtered, lib)
 				}
 			}
 			libs = filtered
 		}
-		c.JSON(http.StatusOK, libs)
+		withPreview := c.Query("with_preview") == "1" || c.Query("with_preview") == "true"
+		limit := 10
+		if withPreview {
+			limit, _ = strconv.Atoi(c.DefaultQuery("preview_limit", c.DefaultQuery("limit", "10")))
+			if limit <= 0 {
+				limit = 10
+			} else if limit > 100 {
+				limit = 100
+			}
+		}
+		out := make([]webLibraryPayload, 0, len(libs)+8)
+		if withPreview {
+			previews, err := svc.Media.ListLibrariesWithPreview(ctx, libs, mediaVisibilityForRequest(c, svc), limit)
+			if err != nil {
+				c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+				return
+			}
+			for _, p := range previews {
+				out = append(out, webLibraryPayload{Library: p.Library, Total: p.Total, Cards: p.Cards})
+			}
+		} else {
+			for _, l := range libs {
+				out = append(out, webLibraryPayload{Library: l})
+			}
+		}
+		// 远程 Emby 挂载库追加在本地库之后。
+		if svc.EmbyRemote != nil {
+			if views, err := svc.EmbyRemote.RemoteLibraries(ctx); err == nil {
+				remotePayloads := make([]webLibraryPayload, len(views))
+				for i, v := range views {
+					remotePayloads[i] = webLibraryPayload{Library: v.Library, IsRemoteEmby: true, RemoteSource: v.AccountName}
+				}
+				if withPreview && len(views) > 0 {
+					const maxRemotePreviewWorkers = 6
+					sem := make(chan struct{}, maxRemotePreviewWorkers)
+					var wg sync.WaitGroup
+					for i, v := range views {
+						i, v := i, v
+						wg.Add(1)
+						go func() {
+							defer wg.Done()
+							select {
+							case sem <- struct{}{}:
+								defer func() { <-sem }()
+							case <-ctx.Done():
+								return
+							}
+							acct := svc.EmbyRemote.AccountByID(ctx, v.AccountID)
+							if acct == nil {
+								return
+							}
+							tmpMount := &model.EmbyMount{Base: model.Base{ID: v.MountID}}
+							itemTypes := remoteLibraryItemTypes(v.CollectionType)
+							if _, total, err := svc.EmbyRemote.RemoteLibraryMedia(ctx, tmpMount, acct, v.RemoteID, itemTypes, 0, 1); err == nil {
+								remotePayloads[i].Total = total
+							}
+							if cards, err := svc.EmbyRemote.RemoteLatestCards(ctx, tmpMount, acct, v.RemoteID, limit); err == nil {
+								remotePayloads[i].Cards = cards
+							}
+						}()
+					}
+					wg.Wait()
+				}
+				out = append(out, remotePayloads...)
+			}
+		}
+		c.JSON(http.StatusOK, out)
 	}
 }
 
 func getLibraryHandler(svc *service.Container) gin.HandlerFunc {
 	return func(c *gin.Context) {
-		lib, err := svc.Repo.Library.FindByID(c.Request.Context(), c.Param("id"))
+		ctx := c.Request.Context()
+		id := c.Param("id")
+		// 远程 Emby 挂载库详情。
+		if svc.EmbyRemote != nil && service.IsEmbyRemoteID(id) {
+			mountID, remoteID, _ := service.DecodeEmbyRemoteID(id)
+			view, err := svc.EmbyRemote.RemoteLibraryByID(ctx, mountID, remoteID)
+			if err != nil || view == nil {
+				c.JSON(http.StatusNotFound, gin.H{"error": "not found"})
+				return
+			}
+			c.JSON(http.StatusOK, webLibraryPayload{Library: view.Library, IsRemoteEmby: true, RemoteSource: view.AccountName})
+			return
+		}
+		lib, err := svc.Repo.Library.FindByID(ctx, id)
 		if err != nil {
 			c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
 			return
@@ -60,16 +164,16 @@ func getLibraryHandler(svc *service.Container) gin.HandlerFunc {
 			return
 		}
 		role, _ := c.Get(middleware.CtxUserRole)
-		includeHidden := role == "admin" && (c.Query("include_hidden") == "1" || c.Query("all") == "1")
+		includeHidden := role == "admin" && (c.Query("include_hidden") == "1" || c.Query("include_hidden") == "true" || c.Query("all") == "1")
 		if !includeHidden {
-			libs := service.FilterDisplayCloudLibraries(c.Request.Context(), svc.Repo, []model.Library{*lib})
-			if len(libs) == 0 || !service.LibraryVisibleForUser(c.Request.Context(), svc.Repo, libs[0], mediaVisibilityForRequest(c, svc)) {
+			libs := service.FilterDisplayCloudLibraries(ctx, svc.Repo, []model.Library{*lib})
+			if len(libs) == 0 || !service.LibraryVisibleForUser(ctx, svc.Repo, libs[0], mediaVisibilityForRequest(c, svc)) {
 				c.JSON(http.StatusNotFound, gin.H{"error": "not found"})
 				return
 			}
-			c.JSON(http.StatusOK, libs[0])
+			c.JSON(http.StatusOK, webLibraryPayload{Library: libs[0]})
 		} else {
-			c.JSON(http.StatusOK, lib)
+			c.JSON(http.StatusOK, webLibraryPayload{Library: *lib})
 		}
 	}
 }
@@ -90,6 +194,35 @@ func createLibraryHandler(svc *service.Container) gin.HandlerFunc {
 		if len(roots) == 0 && strings.TrimSpace(req.Path) != "" {
 			roots = append(roots, service.LibraryRootInput{Path: req.Path})
 		}
+		var l *model.Library
+		if req.CreatePerSubfolder {
+			parent := ""
+			if len(roots) > 0 {
+				parent = roots[0].Path
+			} else if strings.TrimSpace(req.Path) != "" {
+				parent = req.Path
+			}
+			created, err := svc.Media.CreateLibrariesPerSubfolder(c.Request.Context(), parent, req.Type, req.CoverURL)
+			if err != nil {
+				c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+				return
+			}
+			uid, _ := c.Get("ctx_user_id")
+			for i := range created {
+				lib := &created[i]
+				svc.Audit.Record(c.Request.Context(), toString(uid), "library.create", lib.ID, c.ClientIP(), lib.Path)
+				if svc.Watcher != nil {
+					go func() { _ = svc.Watcher.Refresh(context.Background()) }()
+				}
+				for _, root := range lib.Roots {
+					if root.Enabled {
+						queueLibraryRootScan(svc, lib.ID, root.ID)
+					}
+				}
+			}
+			c.JSON(http.StatusCreated, gin.H{"libraries": created})
+			return
+		}
 		l, err := svc.Media.CreateLibraryWithRootsAndCover(c.Request.Context(), req.Name, req.Type, req.CoverURL, roots)
 		if err != nil {
 			c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
@@ -117,7 +250,9 @@ func createLibraryHandler(svc *service.Container) gin.HandlerFunc {
 }
 
 type updateLibraryReq struct {
-	CoverURL string `json:"cover_url"`
+	CoverURL        *string `json:"cover_url"`
+	SortOrder       *int    `json:"sort_order"`
+	CarouselEnabled *bool   `json:"carousel_enabled"`
 }
 
 func updateLibraryHandler(svc *service.Container) gin.HandlerFunc {
@@ -127,9 +262,17 @@ func updateLibraryHandler(svc *service.Container) gin.HandlerFunc {
 			c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
 			return
 		}
-		if err := svc.Media.UpdateLibraryCover(c.Request.Context(), c.Param("id"), req.CoverURL); err != nil {
-			c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
-			return
+		if req.CoverURL != nil {
+			if err := svc.Media.UpdateLibraryCover(c.Request.Context(), c.Param("id"), *req.CoverURL); err != nil {
+				c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+				return
+			}
+		}
+		if req.SortOrder != nil || req.CarouselEnabled != nil {
+			if err := svc.Media.UpdateLibraryFields(c.Request.Context(), c.Param("id"), req.SortOrder, req.CarouselEnabled); err != nil {
+				c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+				return
+			}
 		}
 		lib, err := svc.Repo.Library.FindByID(c.Request.Context(), c.Param("id"))
 		if err != nil || lib == nil {
@@ -140,6 +283,25 @@ func updateLibraryHandler(svc *service.Container) gin.HandlerFunc {
 	}
 }
 
+type reorderLibrariesReq struct {
+	IDs []string `json:"ids" binding:"required"`
+}
+
+func reorderLibrariesHandler(svc *service.Container) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		var req reorderLibrariesReq
+		if err := c.ShouldBindJSON(&req); err != nil {
+			c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+			return
+		}
+		if err := svc.Media.ReorderLibraries(c.Request.Context(), req.IDs); err != nil {
+			c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+			return
+		}
+		c.JSON(http.StatusOK, gin.H{"updated": len(req.IDs)})
+	}
+}
+
 func deleteLibraryHandler(svc *service.Container) gin.HandlerFunc {
 	return func(c *gin.Context) {
 		id := c.Param("id")
@@ -157,8 +319,37 @@ func deleteLibraryHandler(svc *service.Container) gin.HandlerFunc {
 func listMediaHandler(svc *service.Container) gin.HandlerFunc {
 	return func(c *gin.Context) {
 		id := c.Param("id")
+		ctx := c.Request.Context()
 		page, _ := strconv.Atoi(c.DefaultQuery("page", "1"))
 		size, _ := strconv.Atoi(c.DefaultQuery("page_size", "50"))
+		// 远程 Emby 库：转发远程直属条目并映射为本地 Media 结构（分页由远程承接）。
+		if svc.EmbyRemote != nil && service.IsEmbyRemoteID(id) {
+			mountID, remoteID, _ := service.DecodeEmbyRemoteID(id)
+			mount, acct, _ := svc.EmbyRemote.ResolveMount(ctx, mountID)
+			if mount == nil || acct == nil {
+				c.JSON(http.StatusNotFound, gin.H{"error": "not found"})
+				return
+			}
+			itemTypes := ""
+			if view, err := svc.EmbyRemote.RemoteLibraryByID(ctx, mountID, remoteID); err == nil && view != nil {
+				itemTypes = remoteLibraryItemTypes(view.CollectionType)
+			}
+			items, total, err := svc.EmbyRemote.RemoteLibraryMedia(ctx, mount, acct, remoteID, itemTypes, (page-1)*size, size)
+			if err != nil {
+				c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+				return
+			}
+			if items == nil {
+				items = []model.Media{}
+			}
+			c.JSON(http.StatusOK, gin.H{
+				"items":     items,
+				"total":     total,
+				"page":      page,
+				"page_size": size,
+			})
+			return
+		}
 		groupVersions := c.DefaultQuery("group_versions", "1") != "0"
 		if !groupVersions {
 			items, total, err := svc.Media.ListMediaVisible(c.Request.Context(), id, page, size, mediaVisibilityForRequest(c, svc))
@@ -196,7 +387,33 @@ func listMediaHandler(svc *service.Container) gin.HandlerFunc {
 
 func getMediaHandler(svc *service.Container) gin.HandlerFunc {
 	return func(c *gin.Context) {
-		m, err := svc.Media.GetMedia(c.Request.Context(), c.Param("id"))
+		ctx := c.Request.Context()
+		id := c.Param("id")
+		// 远程 Emby 条目：拉远程详情并映射为本地 Media 结构。
+		if svc.EmbyRemote != nil && service.IsEmbyRemoteID(id) {
+			mountID, remoteID, _ := service.DecodeEmbyRemoteID(id)
+			mount, acct, _ := svc.EmbyRemote.ResolveMount(ctx, mountID)
+			if mount == nil || acct == nil {
+				c.JSON(http.StatusNotFound, gin.H{"error": "not found"})
+				return
+			}
+			m, err := svc.EmbyRemote.RemoteMediaDetail(ctx, mount, acct, remoteID)
+			if err != nil {
+				c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+				return
+			}
+			if m == nil {
+				c.JSON(http.StatusNotFound, gin.H{"error": "not found"})
+				return
+			}
+			if !mediaVisibleForRequest(c, svc, m) {
+				c.JSON(http.StatusNotFound, gin.H{"error": "not found"})
+				return
+			}
+			c.JSON(http.StatusOK, m)
+			return
+		}
+		m, err := svc.Media.GetMedia(ctx, id)
 		if err != nil {
 			c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
 			return
@@ -290,7 +507,37 @@ func searchMediaHandler(svc *service.Container) gin.HandlerFunc {
 
 func streamHandler(svc *service.Container) gin.HandlerFunc {
 	return func(c *gin.Context) {
-		m, err := svc.Media.GetMedia(c.Request.Context(), c.Param("id"))
+		ctx := c.Request.Context()
+		id := c.Param("id")
+		// 远程 Emby 条目：按挂载代理配置分流——代理走 MMTL 反代，否则 302 直连。
+		if svc.EmbyRemote != nil && service.IsEmbyRemoteID(id) {
+			if !enforceScopedPlaybackToken(c, id) {
+				return
+			}
+			mountID, remoteID, _ := service.DecodeEmbyRemoteID(id)
+			mount, acct, _ := svc.EmbyRemote.ResolveMount(ctx, mountID)
+			if mount == nil || acct == nil {
+				c.JSON(http.StatusNotFound, gin.H{"error": "not found"})
+				return
+			}
+			if mount.ProxyPlay {
+				if err := svc.Emby.ProxyRemoteVideoStream(ctx, c.Writer, c.Request, mountID, remoteID); err != nil {
+					if !c.Writer.Written() {
+						c.JSON(http.StatusBadGateway, gin.H{"error": err.Error()})
+					}
+				}
+				return
+			}
+			target, err := svc.EmbyRemote.WebStreamURL(ctx, acct, remoteID)
+			if err != nil {
+				c.JSON(http.StatusBadGateway, gin.H{"error": err.Error()})
+				return
+			}
+			setRedirectNoStoreHeaders(c)
+			c.Redirect(http.StatusFound, target)
+			return
+		}
+		m, err := svc.Media.GetMedia(ctx, id)
 		if err != nil || m == nil || !mediaVisibleForRequest(c, svc, m) {
 			c.JSON(http.StatusNotFound, gin.H{"error": "not found"})
 			return

internal/handler/playback_extra.go

@@ -19,21 +19,40 @@ import (
 	"github.com/ShukeBta/MMTL/internal/service"
 )
 
+func findMediaForPlaybackEndpoint(c *gin.Context, svc *service.Container, id string) (*model.Media, error) {
+	ctx := c.Request.Context()
+	if svc.EmbyRemote != nil && service.IsEmbyRemoteID(id) {
+		mountID, remoteID, _ := service.DecodeEmbyRemoteID(id)
+		mount, acct, _ := svc.EmbyRemote.ResolveMount(ctx, mountID)
+		if mount == nil || acct == nil {
+			return nil, nil
+		}
+		return svc.EmbyRemote.RemoteMediaDetail(ctx, mount, acct, remoteID)
+	}
+	return svc.Repo.Media.FindByID(ctx, id)
+}
+
 // playbackInfoHandler returns the media row + a `stream_url` the React
 // player can hit. Mirrors the Python project's surface.
 func playbackInfoHandler(svc *service.Container) gin.HandlerFunc {
 	return func(c *gin.Context) {
-		m, err := svc.Repo.Media.FindByID(c.Request.Context(), c.Param("id"))
+		id := c.Param("id")
+		m, err := findMediaForPlaybackEndpoint(c, svc, id)
 		if err != nil || m == nil || !mediaVisibleForRequest(c, svc, m) {
 			c.JSON(http.StatusNotFound, gin.H{"error": "media not found"})
 			return
 		}
 		token := externalPlaybackToken(c, svc, m.ID, m.DurationSec)
 		profileQuery := externalProfileQuery(c)
+		hlsURL := "/api/hls/" + m.ID + "/index.m3u8?token=" + url.QueryEscape(token) + profileQuery
+		if service.IsEmbyRemoteID(m.ID) || service.IsStrmMediaRow(m) {
+			// Emby 远程挂载与 STRM 媒体一样，默认直连播放，不提供转码地址
+			hlsURL = ""
+		}
 		c.JSON(http.StatusOK, gin.H{
 			"media":      m,
 			"stream_url": "/api/stream/" + m.ID + "?token=" + url.QueryEscape(token) + profileQuery,
-			"hls_url":    "/api/hls/" + m.ID + "/index.m3u8?token=" + url.QueryEscape(token) + profileQuery,
+			"hls_url":    hlsURL,
 		})
 	}
 }
@@ -68,7 +87,8 @@ func playbackProgressHandler(svc *service.Container) gin.HandlerFunc {
 // produce the per-player launch URL.
 func externalPlayersHandler(svc *service.Container) gin.HandlerFunc {
 	return func(c *gin.Context) {
-		m, err := svc.Repo.Media.FindByID(c.Request.Context(), c.Param("id"))
+		id := c.Param("id")
+		m, err := findMediaForPlaybackEndpoint(c, svc, id)
 		if err != nil || m == nil || !mediaVisibleForRequest(c, svc, m) {
 			c.JSON(http.StatusNotFound, gin.H{"error": "media not found"})
 			return
@@ -93,7 +113,8 @@ func externalPlayersHandler(svc *service.Container) gin.HandlerFunc {
 // token query string the external player needs.
 func externalURLHandler(svc *service.Container) gin.HandlerFunc {
 	return func(c *gin.Context) {
-		m, err := svc.Repo.Media.FindByID(c.Request.Context(), c.Param("id"))
+		id := c.Param("id")
+		m, err := findMediaForPlaybackEndpoint(c, svc, id)
 		if err != nil || m == nil || !mediaVisibleForRequest(c, svc, m) {
 			c.JSON(http.StatusNotFound, gin.H{"error": "media not found"})
 			return

internal/handler/playback_extra_test.go

@@ -404,8 +404,77 @@ func newPlaybackScopeTestRouter(t *testing.T) (*gin.Engine, *service.Container,
 	router := gin.New()
 	api := router.Group("/api")
 	api.Use(middleware.AuthRequired(cfg.Secrets.JWTSecret))
+	api.GET("/playback/:id/info", playbackInfoHandler(svc))
 	api.GET("/playback/:id/external-url", externalURLHandler(svc))
 	api.GET("/playback/:id/external-players", externalPlayersHandler(svc))
 	api.GET("/stream/:id", streamHandler(svc))
+	api.GET("/hls/:id/index.m3u8", hlsPlaylistHandler(svc))
+	api.GET("/media/:id/subtitles", listSubtitlesHandler(svc))
 	return router, svc, cfg.Secrets.JWTSecret
 }
+
+func TestPlaybackInfoForSTRMMediaDisablesHLS(t *testing.T) {
+	router, _, secret := newPlaybackScopeTestRouter(t)
+	loginToken := signedTestToken(t, secret)
+
+	req := httptest.NewRequest(http.MethodGet, "http://nas.local/api/playback/media-1/info", nil)
+	req.Header.Set("Authorization", "Bearer "+loginToken)
+	w := httptest.NewRecorder()
+	router.ServeHTTP(w, req)
+
+	if w.Code != http.StatusOK {
+		t.Fatalf("status = %d body=%s", w.Code, w.Body.String())
+	}
+	var payload struct {
+		StreamURL string `json:"stream_url"`
+		HlsURL    string `json:"hls_url"`
+	}
+	if err := json.Unmarshal(w.Body.Bytes(), &payload); err != nil {
+		t.Fatalf("decode: %v", err)
+	}
+	if payload.StreamURL == "" {
+		t.Fatalf("expected non-empty stream_url")
+	}
+	if payload.HlsURL != "" {
+		t.Fatalf("expected empty hls_url for STRM media, got %q", payload.HlsURL)
+	}
+}
+
+func TestHLSPlaylistForRemoteEmbyMediaDisabled(t *testing.T) {
+	router, svc, secret := newPlaybackScopeTestRouter(t)
+	svc.EmbyRemote = &service.EmbyRemoteService{}
+	loginToken := signedTestToken(t, secret)
+
+	req := httptest.NewRequest(http.MethodGet, "http://nas.local/api/hls/embyremote~acct1~item1/index.m3u8", nil)
+	req.Header.Set("Authorization", "Bearer "+loginToken)
+	w := httptest.NewRecorder()
+	router.ServeHTTP(w, req)
+
+	if w.Code != http.StatusConflict {
+		t.Fatalf("status = %d, want %d (409 StatusConflict)", w.Code, http.StatusConflict)
+	}
+}
+
+func TestListSubtitlesForRemoteEmbyMediaReturnsEmptyTracks(t *testing.T) {
+	router, svc, secret := newPlaybackScopeTestRouter(t)
+	svc.EmbyRemote = &service.EmbyRemoteService{}
+	loginToken := signedTestToken(t, secret)
+
+	req := httptest.NewRequest(http.MethodGet, "http://nas.local/api/media/embyremote~acct1~item1/subtitles", nil)
+	req.Header.Set("Authorization", "Bearer "+loginToken)
+	w := httptest.NewRecorder()
+	router.ServeHTTP(w, req)
+
+	if w.Code != http.StatusOK {
+		t.Fatalf("status = %d, want 200 OK", w.Code)
+	}
+	var payload struct {
+		Tracks []any `json:"tracks"`
+	}
+	if err := json.Unmarshal(w.Body.Bytes(), &payload); err != nil {
+		t.Fatalf("decode: %v", err)
+	}
+	if payload.Tracks == nil || len(payload.Tracks) != 0 {
+		t.Fatalf("expected empty tracks array, got %v", payload.Tracks)
+	}
+}

internal/handler/routes_admin.go

@@ -20,9 +20,41 @@ func registerAdminRoutes(api *gin.RouterGroup, cfg *config.Config, svc *service.
 	registerAdminAPIConfigRoutes(admin, svc)
 	registerAdminRecognitionWordRoutes(admin, svc)
 	registerAdminStrmRoutes(admin, svc)
+	registerAdminScraperRoutes(admin, svc)
+	registerAdminDatabaseRoutes(admin, svc)
+
+	// FFmpeg/FFprobe 工具：状态查询 + 一键下载安装（自动匹配当前平台）。
+	admin.GET("/tools/ffmpeg/status", ffToolsStatusHandler(svc))
+	admin.POST("/tools/ffmpeg/install", ffToolsInstallHandler(svc))
+}
+
+func registerAdminScraperRoutes(admin *gin.RouterGroup, svc *service.Container) {
+	admin.GET("/scraper/queue", listScrapeQueueHandler(svc))
+	admin.POST("/scraper/queue/:id/cancel", cancelScrapeTaskHandler(svc))
+	admin.POST("/scraper/queue/:id/retry", retryScrapeTaskHandler(svc))
+	admin.DELETE("/scraper/queue/:id", deleteScrapeTaskHandler(svc))
+	admin.POST("/scraper/queue/batch", batchActionScrapeTasksHandler(svc))
+	admin.POST("/scraper/queue/clear-done", clearDoneScrapeTasksHandler(svc))
+	admin.POST("/scraper/queue/clear-finished", clearFinishedScrapeTasksHandler(svc))
+	admin.POST("/scraper/queue/clear-canceled", clearCanceledScrapeTasksHandler(svc))
+	admin.POST("/scraper/queue/retry-failed", retryAllFailedScrapeTasksHandler(svc))
+	admin.POST("/scraper/queue/cancel-pending", cancelPendingScrapeTasksHandler(svc))
+	admin.POST("/scraper/queue/enqueue-library/:id", enqueueLibraryScrapeHandler(svc))
+	admin.POST("/scraper/queue/enqueue-all", enqueueAllScrapeHandler(svc))
+	admin.POST("/media/repair-rescrape", enqueueAllScrapeHandler(svc))
+	admin.POST("/libraries/:id/repair-rescrape", enqueueLibraryScrapeHandler(svc))
 }
 
 func registerAdminStrmRoutes(admin *gin.RouterGroup, svc *service.Container) {
+	// Emby 挂载管理：远程 Emby 媒体库挂载（账号复用 strm/accounts）
+	admin.GET("/emby/accounts/:id/views", embyAccountViewsHandler(svc))
+	admin.POST("/emby/accounts/:id/full-mount", fullMountEmbyAccountHandler(svc))
+	admin.GET("/emby/mounts", listEmbyMountsHandler(svc))
+	admin.POST("/emby/mounts", createEmbyMountsHandler(svc))
+	admin.PUT("/emby/mounts/reorder", reorderEmbyMountsHandler(svc))
+	admin.PUT("/emby/mounts/:id", updateEmbyMountHandler(svc))
+	admin.DELETE("/emby/mounts/:id", deleteEmbyMountHandler(svc))
+
 	admin.GET("/strm/accounts", listStrmAccountsHandler(svc))
 	admin.POST("/strm/accounts", createStrmAccountHandler(svc))
 	admin.PUT("/strm/accounts/:id", updateStrmAccountHandler(svc))
@@ -43,18 +75,30 @@ func registerAdminStrmRoutes(admin *gin.RouterGroup, svc *service.Container) {
 	admin.POST("/strm/paths/:id/sync", startStrmSyncHandler(svc))
 	admin.POST("/strm/paths/:id/cancel", cancelStrmSyncHandler(svc))
 	admin.GET("/strm/records", listStrmSyncRecordsHandler(svc))
+	admin.DELETE("/strm/records/:id", deleteStrmSyncRecordHandler(svc))
+	admin.DELETE("/strm/records", clearStrmSyncRecordsHandler(svc))
 	admin.GET("/strm/local-dirs", listStrmLocalDirsHandler(svc))
 
 	admin.GET("/strm/downloads", downloadQueueHandler(svc))
 	admin.POST("/strm/downloads/:id/cancel", cancelStrmDownloadHandler(svc))
 	admin.POST("/strm/downloads/:id/retry", retryStrmDownloadHandler(svc))
+	admin.DELETE("/strm/downloads/:id", deleteStrmDownloadHandler(svc))
+	admin.POST("/strm/downloads/batch", batchActionDownloadsHandler(svc))
 	admin.POST("/strm/downloads/clear-done", clearDoneDownloadsHandler(svc))
 	admin.POST("/strm/downloads/clear-finished", clearFinishedDownloadsHandler(svc))
+	admin.POST("/strm/downloads/clear-canceled", clearCanceledDownloadsHandler(svc))
 	admin.POST("/strm/downloads/retry-failed", retryAllFailedDownloadsHandler(svc))
 	admin.POST("/strm/downloads/cancel-pending", cancelPendingDownloadsHandler(svc))
 	admin.GET("/strm/uploads", uploadQueueHandler(svc))
 	admin.POST("/strm/uploads/:id/cancel", cancelStrmUploadHandler(svc))
 	admin.POST("/strm/uploads/:id/retry", retryStrmUploadHandler(svc))
+	admin.DELETE("/strm/uploads/:id", deleteStrmUploadHandler(svc))
+	admin.POST("/strm/uploads/batch", batchActionUploadsHandler(svc))
+	admin.POST("/strm/uploads/clear-done", clearDoneUploadsHandler(svc))
+	admin.POST("/strm/uploads/clear-finished", clearFinishedUploadsHandler(svc))
+	admin.POST("/strm/uploads/clear-canceled", clearCanceledUploadsHandler(svc))
+	admin.POST("/strm/uploads/retry-failed", retryAllFailedUploadsHandler(svc))
+	admin.POST("/strm/uploads/cancel-pending", cancelPendingUploadsHandler(svc))
 }
 
 func registerAdminUserRoutes(admin *gin.RouterGroup, svc *service.Container) {
@@ -64,6 +108,7 @@ func registerAdminUserRoutes(admin *gin.RouterGroup, svc *service.Container) {
 	admin.PATCH("/users/:id/password", resetUserPasswordHandler(svc))
 	admin.PATCH("/users/:id/status", updateUserStatusHandler(svc))
 	admin.PATCH("/users/:id/role", adminUpdateRoleHandler(svc))
+	admin.PATCH("/users/:id/libraries", updateUserLibrariesHandler(svc))
 	admin.DELETE("/users/:id", deleteUserHandler(svc))
 	admin.GET("/settings", listSettingsHandler(svc))
 	admin.PUT("/settings", updateSettingHandler(svc))
@@ -111,3 +156,10 @@ func registerAdminRecognitionWordRoutes(admin *gin.RouterGroup, svc *service.Con
 	admin.POST("/recognition-words/sync", syncRecognitionWordsHandler(svc))
 	admin.POST("/recognition-words/test", testRecognitionWordsHandler(svc))
 }
+
+func registerAdminDatabaseRoutes(admin *gin.RouterGroup, svc *service.Container) {
+	admin.GET("/database/status", getDatabaseStatusHandler(svc))
+	admin.POST("/database/test", testDatabaseHandler(svc))
+	admin.POST("/database/migrate", migrateDatabaseHandler(svc))
+	admin.POST("/database/save-config", saveDatabaseConfigHandler(svc))
+}

internal/handler/routes_authenticated_core.go

@@ -21,6 +21,7 @@ func registerAuthedLibraryRoutes(authed *gin.RouterGroup, svc *service.Container
 	authed.POST("/libraries", middleware.AdminRequired(), createLibraryHandler(svc))
 	authed.GET("/libraries/:id", getLibraryHandler(svc))
 	authed.PATCH("/libraries/:id", middleware.AdminRequired(), updateLibraryHandler(svc))
+	authed.PUT("/libraries/reorder", middleware.AdminRequired(), reorderLibrariesHandler(svc))
 	authed.DELETE("/libraries/:id", middleware.AdminRequired(), deleteLibraryHandler(svc))
 	authed.GET("/libraries/:id/roots", middleware.AdminRequired(), listLibraryRootsHandler(svc))
 	authed.POST("/libraries/:id/roots", middleware.AdminRequired(), createLibraryRootHandler(svc))
@@ -38,6 +39,7 @@ func registerAuthedLibraryRoutes(authed *gin.RouterGroup, svc *service.Container
 
 func registerAuthedMediaRoutes(authed *gin.RouterGroup, svc *service.Container) {
 	authed.GET("/media/:id", getMediaHandler(svc))
+	authed.GET("/media/:id/episodes", listMediaEpisodesHandler(svc))
 	authed.GET("/media", searchMediaHandler(svc))
 	authed.PATCH("/media/:id/metadata", middleware.AdminRequired(), updateMediaMetadataHandler(svc))
 	authed.POST("/media/:id/scrape", middleware.AdminRequired(), scrapeOneHandler(svc))

internal/handler/routes_authenticated_test.go

@@ -23,16 +23,16 @@ func TestAuthenticatedRouteSurfacesAreRegistered(t *testing.T) {
 		routes[route.Method+" "+route.Path] = true
 	}
 
-		for _, want := range []string{
-			"GET /api/me",
-			"GET /api/auth/permissions",
-			"GET /api/libraries",
-			"GET /api/media",
-			"GET /api/stream/:id",
-			"GET /api/storage",
-			"GET /api/watch-history",
-			"GET /api/playback/:id/info",
-		} {
+	for _, want := range []string{
+		"GET /api/me",
+		"GET /api/auth/permissions",
+		"GET /api/libraries",
+		"GET /api/media",
+		"GET /api/stream/:id",
+		"GET /api/storage",
+		"GET /api/watch-history",
+		"GET /api/playback/:id/info",
+	} {
 		if !routes[want] {
 			t.Fatalf("%s route is not registered", want)
 		}

internal/handler/scraper_queue.go

@@ -0,0 +1,167 @@
+package handler
+
+import (
+	"net/http"
+	"strconv"
+
+	"github.com/gin-gonic/gin"
+
+	"github.com/ShukeBta/MMTL/internal/service"
+)
+
+func listScrapeQueueHandler(svc *service.Container) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		page, _ := strconv.Atoi(c.DefaultQuery("page", "1"))
+		pageSize, _ := strconv.Atoi(c.DefaultQuery("page_size", "50"))
+		snap, err := svc.Scraper.ScrapeQueueSnapshot(c.Request.Context(), c.Query("status"), page, pageSize)
+		if err != nil {
+			c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+			return
+		}
+		c.JSON(http.StatusOK, snap)
+	}
+}
+
+func cancelScrapeTaskHandler(svc *service.Container) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		if err := svc.Scraper.CancelScrapeTask(c.Request.Context(), c.Param("id")); err != nil {
+			c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+			return
+		}
+		c.JSON(http.StatusOK, gin.H{"ok": true})
+	}
+}
+
+func retryScrapeTaskHandler(svc *service.Container) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		if err := svc.Scraper.RetryScrapeTask(c.Request.Context(), c.Param("id")); err != nil {
+			c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+			return
+		}
+		c.JSON(http.StatusOK, gin.H{"ok": true})
+	}
+}
+
+func deleteScrapeTaskHandler(svc *service.Container) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		if err := svc.Scraper.DeleteScrapeTask(c.Request.Context(), c.Param("id")); err != nil {
+			c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+			return
+		}
+		c.JSON(http.StatusOK, gin.H{"ok": true})
+	}
+}
+
+func batchActionScrapeTasksHandler(svc *service.Container) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		var req queueBatchReq
+		if err := c.ShouldBindJSON(&req); err != nil {
+			c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+			return
+		}
+		n, err := svc.Scraper.BatchActionScrapeTasks(c.Request.Context(), req.Action, req.IDs)
+		if err != nil {
+			c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+			return
+		}
+		c.JSON(http.StatusOK, gin.H{"affected": n, "action": req.Action})
+	}
+}
+
+func clearDoneScrapeTasksHandler(svc *service.Container) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		n, err := svc.Scraper.ClearDoneScrapeTasks(c.Request.Context())
+		if err != nil {
+			c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+			return
+		}
+		c.JSON(http.StatusOK, gin.H{"deleted": n})
+	}
+}
+
+func clearFinishedScrapeTasksHandler(svc *service.Container) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		n, err := svc.Scraper.ClearFinishedScrapeTasks(c.Request.Context())
+		if err != nil {
+			c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+			return
+		}
+		c.JSON(http.StatusOK, gin.H{"deleted": n})
+	}
+}
+
+func clearCanceledScrapeTasksHandler(svc *service.Container) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		n, err := svc.Scraper.ClearCanceledScrapeTasks(c.Request.Context())
+		if err != nil {
+			c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+			return
+		}
+		c.JSON(http.StatusOK, gin.H{"deleted": n})
+	}
+}
+
+func retryAllFailedScrapeTasksHandler(svc *service.Container) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		n, err := svc.Scraper.RetryAllFailedScrapeTasks(c.Request.Context())
+		if err != nil {
+			c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+			return
+		}
+		c.JSON(http.StatusOK, gin.H{"retried": n})
+	}
+}
+
+func cancelPendingScrapeTasksHandler(svc *service.Container) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		n, err := svc.Scraper.CancelPendingScrapeTasks(c.Request.Context())
+		if err != nil {
+			c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+			return
+		}
+		c.JSON(http.StatusOK, gin.H{"canceled": n})
+	}
+}
+
+type enqueueScrapeReq struct {
+	EpisodeImages  bool `json:"episode_images"`
+	EpisodeArtwork bool `json:"episode_artwork"`
+	RefreshMatched bool `json:"refresh_matched"`
+	IncludeMatched bool `json:"include_matched"`
+}
+
+func (r enqueueScrapeReq) toOptions() service.ScrapeOptions {
+	epArtwork := r.EpisodeImages || r.EpisodeArtwork
+	return service.ScrapeOptions{
+		EpisodeArtwork: &epArtwork,
+		IncludeMatched: r.IncludeMatched || r.RefreshMatched,
+		RetryNoMatch:   true,
+	}
+}
+
+func enqueueLibraryScrapeHandler(svc *service.Container) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		var req enqueueScrapeReq
+		_ = c.ShouldBindJSON(&req)
+		libID := c.Param("id")
+		n, err := svc.Scraper.EnqueueLibrary(c.Request.Context(), libID, req.toOptions())
+		if err != nil {
+			c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+			return
+		}
+		c.JSON(http.StatusOK, gin.H{"enqueued": n})
+	}
+}
+
+func enqueueAllScrapeHandler(svc *service.Container) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		var req enqueueScrapeReq
+		_ = c.ShouldBindJSON(&req)
+		n, err := svc.Scraper.EnqueueAll(c.Request.Context(), req.toOptions())
+		if err != nil {
+			c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+			return
+		}
+		c.JSON(http.StatusOK, gin.H{"enqueued": n})
+	}
+}

internal/handler/series.go

@@ -65,7 +65,49 @@ func listSeasonsHandler(svc *service.Container) gin.HandlerFunc {
 func listLibrarySeriesHandler(svc *service.Container) gin.HandlerFunc {
 	return func(c *gin.Context) {
 		libID := c.Param("id")
-		if lib, err := svc.Repo.Library.FindByID(c.Request.Context(), libID); err == nil && lib != nil {
+		ctx := c.Request.Context()
+		// 远程剧集库：远程 Series 映射为系列卡片。
+		if svc.EmbyRemote != nil && service.IsEmbyRemoteID(libID) {
+			mountID, remoteID, _ := service.DecodeEmbyRemoteID(libID)
+			mount, acct, _ := svc.EmbyRemote.ResolveMount(ctx, mountID)
+			if mount == nil || acct == nil {
+				c.JSON(http.StatusNotFound, gin.H{"error": "not found"})
+				return
+			}
+			cards, err := svc.EmbyRemote.RemoteSeriesCards(ctx, mount, acct, remoteID)
+			if err != nil {
+				writeInternalOrCanceled(c, err)
+				return
+			}
+			page, _ := strconv.Atoi(c.DefaultQuery("page", "1"))
+			size, _ := strconv.Atoi(c.DefaultQuery("page_size", "500"))
+			if page < 1 {
+				page = 1
+			}
+			if size <= 0 || size > 1000 {
+				size = 500
+			}
+			start := (page - 1) * size
+			if start > len(cards) {
+				start = len(cards)
+			}
+			end := start + size
+			if end > len(cards) {
+				end = len(cards)
+			}
+			pageItems := cards[start:end]
+			if pageItems == nil {
+				pageItems = []service.SeriesCard{}
+			}
+			c.JSON(http.StatusOK, gin.H{
+				"items":     pageItems,
+				"total":     len(cards),
+				"page":      page,
+				"page_size": size,
+			})
+			return
+		}
+		if lib, err := svc.Repo.Library.FindByID(ctx, libID); err == nil && lib != nil {
 			if !service.LibraryVisibleForUser(c.Request.Context(), svc.Repo, *lib, mediaVisibilityForRequest(c, svc)) {
 				c.JSON(http.StatusNotFound, gin.H{"error": "not found"})
 				return
@@ -114,7 +156,27 @@ func listLibrarySeriesEpisodesHandler(svc *service.Container) gin.HandlerFunc {
 			c.JSON(http.StatusBadRequest, gin.H{"error": "key is required"})
 			return
 		}
-		if lib, err := svc.Repo.Library.FindByID(c.Request.Context(), libID); err == nil && lib != nil {
+		ctx := c.Request.Context()
+		// 远程系列 key（伪装系列 ID）：转发远程该系列全部剧集。
+		if svc.EmbyRemote != nil && service.IsEmbyRemoteID(key) {
+			mountID, remoteSeriesID, _ := service.DecodeEmbyRemoteID(key)
+			mount, acct, _ := svc.EmbyRemote.ResolveMount(ctx, mountID)
+			if mount == nil || acct == nil {
+				c.JSON(http.StatusNotFound, gin.H{"error": "not found"})
+				return
+			}
+			items, err := svc.EmbyRemote.RemoteEpisodes(ctx, mount, acct, remoteSeriesID)
+			if err != nil {
+				writeInternalOrCanceled(c, err)
+				return
+			}
+			if items == nil {
+				items = []model.Media{}
+			}
+			c.JSON(http.StatusOK, gin.H{"items": items, "total": len(items)})
+			return
+		}
+		if lib, err := svc.Repo.Library.FindByID(ctx, libID); err == nil && lib != nil {
 			if !service.LibraryVisibleForUser(c.Request.Context(), svc.Repo, *lib, mediaVisibilityForRequest(c, svc)) {
 				c.JSON(http.StatusNotFound, gin.H{"error": "not found"})
 				return
@@ -128,3 +190,39 @@ func listLibrarySeriesEpisodesHandler(svc *service.Container) gin.HandlerFunc {
 		c.JSON(http.StatusOK, gin.H{"items": items, "total": len(items)})
 	}
 }
+
+func listMediaEpisodesHandler(svc *service.Container) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		id := c.Param("id")
+		if id == "" {
+			c.JSON(http.StatusBadRequest, gin.H{"error": "id is required"})
+			return
+		}
+		ctx := c.Request.Context()
+		// 远程条目：单集→同系列集列表；系列/季/文件夹→子集；电影→自身单条。
+		if svc.EmbyRemote != nil && service.IsEmbyRemoteID(id) {
+			mountID, remoteID, _ := service.DecodeEmbyRemoteID(id)
+			mount, acct, _ := svc.EmbyRemote.ResolveMount(ctx, mountID)
+			if mount == nil || acct == nil {
+				c.JSON(http.StatusNotFound, gin.H{"error": "not found"})
+				return
+			}
+			items, err := svc.EmbyRemote.RemoteEpisodes(ctx, mount, acct, remoteID)
+			if err != nil {
+				writeInternalOrCanceled(c, err)
+				return
+			}
+			if items == nil {
+				items = []model.Media{}
+			}
+			c.JSON(http.StatusOK, gin.H{"items": items, "total": len(items)})
+			return
+		}
+		items, err := svc.Media.ListMediaEpisodes(ctx, id, mediaVisibilityForRequest(c, svc))
+		if err != nil {
+			writeInternalOrCanceled(c, err)
+			return
+		}
+		c.JSON(http.StatusOK, gin.H{"items": items, "total": len(items)})
+	}
+}

internal/handler/stats_user.go

@@ -26,9 +26,9 @@ func statsUserHandler(svc *service.Container) gin.HandlerFunc {
 		_ = svc.Repo.DB.Model(&model.PlaybackHistory{}).
 			Where("user_id = ?", uid).Count(&total).Error
 		c.JSON(http.StatusOK, gin.H{
-			"user_id":      uid,
-			"watched_ms":   watched,
-			"plays":        total,
+			"user_id":       uid,
+			"watched_ms":    watched,
+			"plays":         total,
 			"watched_hours": float64(watched) / 1000.0 / 3600.0,
 		})
 	}

internal/handler/streaming.go

@@ -2,7 +2,6 @@
 package handler
 
 import (
-	"context"
 	"errors"
 	"io"
 	"net/http"
@@ -14,7 +13,13 @@ import (
 
 func hlsPlaylistHandler(svc *service.Container) gin.HandlerFunc {
 	return func(c *gin.Context) {
-		m, err := svc.Media.GetMedia(c.Request.Context(), c.Param("id"))
+		id := c.Param("id")
+		// 远程 Emby 挂载媒体与 STRM 一样，默认直连播放，不进行转码。
+		if svc.EmbyRemote != nil && service.IsEmbyRemoteID(id) {
+			c.JSON(http.StatusConflict, gin.H{"error": "transcode disabled"})
+			return
+		}
+		m, err := svc.Media.GetMedia(c.Request.Context(), id)
 		if err != nil || m == nil || !mediaVisibleForRequest(c, svc, m) {
 			c.JSON(http.StatusNotFound, gin.H{"error": "not found"})
 			return
@@ -44,7 +49,12 @@ func hlsPlaylistHandler(svc *service.Container) gin.HandlerFunc {
 
 func hlsSegmentHandler(svc *service.Container) gin.HandlerFunc {
 	return func(c *gin.Context) {
-		m, err := svc.Media.GetMedia(c.Request.Context(), c.Param("id"))
+		id := c.Param("id")
+		if svc.EmbyRemote != nil && service.IsEmbyRemoteID(id) {
+			c.JSON(http.StatusConflict, gin.H{"error": "transcode disabled"})
+			return
+		}
+		m, err := svc.Media.GetMedia(c.Request.Context(), id)
 		if err != nil || m == nil || !mediaVisibleForRequest(c, svc, m) {
 			c.JSON(http.StatusNotFound, gin.H{"error": "not found"})
 			return
@@ -135,28 +145,12 @@ func scrapeOneHandler(svc *service.Container) gin.HandlerFunc {
 			return
 		}
 		options.IncludeMatched = true
-		m, err := svc.Repo.Media.FindByID(c.Request.Context(), c.Param("id"))
-		if err != nil || m == nil {
-			c.JSON(http.StatusNotFound, gin.H{"error": "not found"})
-			return
-		}
-		task := startScrapeHTTPTask(svc, "手动刮削媒体", m.Title, m.Path)
-		if err := svc.Scraper.EnrichOneWithOptions(c.Request.Context(), m, options); err != nil {
-			finishHTTPTask(task, err, "scrape", "手动刮削媒体失败", nil, nil)
+		task, err := svc.Scraper.EnqueueMedia(c.Request.Context(), c.Param("id"), options)
+		if err != nil {
 			c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
 			return
 		}
-		reclassified := reclassifyMediaAfterScrape(c.Request.Context(), svc, m.ID)
-		refreshed, _ := svc.Repo.Media.FindByID(c.Request.Context(), m.ID)
-		metrics := map[string]int64{"processed": 1}
-		if refreshed != nil && refreshed.ScrapeStatus == "matched" {
-			metrics["matched"] = 1
-		}
-		if reclassified > 0 {
-			metrics["reclassified"] = int64(reclassified)
-		}
-		finishHTTPTask(task, nil, "completed", "手动刮削媒体结束", metrics, nil)
-		c.JSON(http.StatusOK, refreshed)
+		c.JSON(http.StatusOK, task)
 	}
 }
 
@@ -170,40 +164,12 @@ func scrapeLibraryHandler(svc *service.Container) gin.HandlerFunc {
 			return
 		}
 		options.IncludeMatched = true
-		var task *service.TaskHandle
-		if lib, err := svc.Repo.Library.FindByID(c.Request.Context(), libID); err == nil && lib != nil {
-			task = startScrapeHTTPTask(svc, "手动刮削媒体库", lib.Name, lib.Path)
-		} else {
-			task = startScrapeHTTPTask(svc, "手动刮削媒体库", libID, "")
+		n, err := svc.Scraper.EnqueueLibrary(c.Request.Context(), libID, options)
+		if err != nil {
+			c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+			return
 		}
-		// Run in the background so HTTP returns instantly; the WS hub
-		// pushes per-item progress on the "scrape" topic.
-		go func(libID string, task *service.TaskHandle, options service.ScrapeOptions) {
-			result, err := svc.Scraper.EnrichLibraryDetailedWithOptions(context.Background(), libID, options)
-			reclassified := 0
-			if result.Processed > 0 {
-				reclassified = reclassifyLibraryAfterScrape(context.Background(), svc, libID)
-			}
-			metrics := map[string]int64{
-				"matched":    int64(result.Matched),
-				"processed":  int64(result.Processed),
-				"candidates": int64(result.Candidates),
-			}
-			if reclassified > 0 {
-				metrics["reclassified"] = int64(reclassified)
-			}
-			if result.Failed > 0 {
-				metrics["errors"] = int64(result.Failed)
-			}
-			stage := "completed"
-			message := "手动刮削媒体库结束"
-			if err != nil {
-				stage = "scrape"
-				message = "手动刮削媒体库失败"
-			}
-			finishHTTPTask(task, err, stage, message, metrics, nil)
-		}(libID, task, options)
-		c.JSON(http.StatusAccepted, gin.H{"status": "scraping"})
+		c.JSON(http.StatusOK, gin.H{"status": "queued", "enqueued": n})
 	}
 }
 

internal/handler/strm.go

@@ -28,17 +28,25 @@ type strmAccountView struct {
 	model.StrmAccount
 	HasCredential bool   `json:"has_credential"`
 	ProviderLabel string `json:"provider_label"`
+	// ProxyPlay 仅远程 Emby 挂载账号返回：播放流量是否经过 MMTL 代理（编辑回显用）。
+	ProxyPlay *bool `json:"proxy_play,omitempty"`
 }
 
-func strmAccountViews(accounts []model.StrmAccount) []strmAccountView {
+func strmAccountViews(svc *service.Container, accounts []model.StrmAccount) []strmAccountView {
 	out := make([]strmAccountView, 0, len(accounts))
 	for i := range accounts {
 		a := accounts[i]
-		out = append(out, strmAccountView{
+		view := strmAccountView{
 			StrmAccount:   a,
 			HasCredential: service.HasStrmAccountCredential(&a),
 			ProviderLabel: providerLabelOf(a.Provider),
-		})
+		}
+		if a.Provider == model.StrmProviderEmbyRemote && svc != nil && svc.EmbyRemote != nil {
+			if proxyPlay, err := svc.EmbyRemote.ProxyPlayOf(&a); err == nil {
+				view.ProxyPlay = &proxyPlay
+			}
+		}
+		out = append(out, view)
 	}
 	return out
 }
@@ -58,7 +66,7 @@ func listStrmAccountsHandler(svc *service.Container) gin.HandlerFunc {
 			c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
 			return
 		}
-		c.JSON(http.StatusOK, strmAccountViews(accounts))
+		c.JSON(http.StatusOK, strmAccountViews(svc, accounts))
 	}
 }
 
@@ -74,7 +82,7 @@ func createStrmAccountHandler(svc *service.Container) gin.HandlerFunc {
 			c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
 			return
 		}
-		views := strmAccountViews([]model.StrmAccount{*acct})
+		views := strmAccountViews(svc, []model.StrmAccount{*acct})
 		c.JSON(http.StatusOK, views[0])
 	}
 }
@@ -92,7 +100,7 @@ func updateStrmAccountHandler(svc *service.Container) gin.HandlerFunc {
 			c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
 			return
 		}
-		views := strmAccountViews([]model.StrmAccount{*acct})
+		views := strmAccountViews(svc, []model.StrmAccount{*acct})
 		c.JSON(http.StatusOK, views[0])
 	}
 }
@@ -114,7 +122,7 @@ func testStrmAccountHandler(svc *service.Container) gin.HandlerFunc {
 			c.JSON(http.StatusNotFound, gin.H{"error": "网盘账号不存在"})
 			return
 		}
-		views := strmAccountViews([]model.StrmAccount{*acct})
+		views := strmAccountViews(svc, []model.StrmAccount{*acct})
 		c.JSON(http.StatusOK, views[0])
 	}
 }
@@ -178,6 +186,7 @@ type strmSyncPathReq struct {
 	DeleteDir      *bool  `json:"delete_dir"`
 	Cron           string `json:"cron"`
 	EnableCron     *bool  `json:"enable_cron"`
+	SyncMode       string `json:"sync_mode"`
 	Enabled        *bool  `json:"enabled"`
 }
 
@@ -261,7 +270,16 @@ func deleteStrmSyncPathHandler(svc *service.Container) gin.HandlerFunc {
 
 func startStrmSyncHandler(svc *service.Container) gin.HandlerFunc {
 	return func(c *gin.Context) {
-		if err := svc.Strm.StartSync(c.Request.Context(), c.Param("id")); err != nil {
+		mode := c.Query("mode")
+		if mode == "" {
+			var body struct {
+				Mode string `json:"mode"`
+			}
+			if err := c.ShouldBindJSON(&body); err == nil && body.Mode != "" {
+				mode = body.Mode
+			}
+		}
+		if err := svc.Strm.StartSync(c.Request.Context(), c.Param("id"), mode); err != nil {
 			c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
 			return
 		}
@@ -290,6 +308,31 @@ func listStrmSyncRecordsHandler(svc *service.Container) gin.HandlerFunc {
 	}
 }
 
+func deleteStrmSyncRecordHandler(svc *service.Container) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		if c.Param("id") == "" {
+			c.JSON(http.StatusBadRequest, gin.H{"error": "缺少记录 ID"})
+			return
+		}
+		if err := svc.Strm.DeleteSyncRecord(c.Request.Context(), c.Param("id")); err != nil {
+			c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+			return
+		}
+		c.JSON(http.StatusOK, gin.H{"ok": true})
+	}
+}
+
+func clearStrmSyncRecordsHandler(svc *service.Container) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		deleted, err := svc.Strm.ClearSyncRecords(c.Request.Context(), c.Query("path_id"))
+		if err != nil {
+			c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+			return
+		}
+		c.JSON(http.StatusOK, gin.H{"ok": true, "deleted": deleted})
+	}
+}
+
 // ─── 下载/上传队列 ─────────────────────────────────────────────────────────────
 
 func downloadQueueHandler(svc *service.Container) gin.HandlerFunc {
@@ -358,6 +401,63 @@ func retryStrmUploadHandler(svc *service.Container) gin.HandlerFunc {
 	}
 }
 
+func deleteStrmDownloadHandler(svc *service.Container) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		if err := svc.Strm.DeleteDownloadTask(c.Request.Context(), c.Param("id")); err != nil {
+			c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+			return
+		}
+		c.JSON(http.StatusOK, gin.H{"ok": true})
+	}
+}
+
+func deleteStrmUploadHandler(svc *service.Container) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		if err := svc.Strm.DeleteUploadTask(c.Request.Context(), c.Param("id")); err != nil {
+			c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+			return
+		}
+		c.JSON(http.StatusOK, gin.H{"ok": true})
+	}
+}
+
+type queueBatchReq struct {
+	Action string   `json:"action" binding:"required"`
+	IDs    []string `json:"ids" binding:"required"`
+}
+
+func batchActionDownloadsHandler(svc *service.Container) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		var req queueBatchReq
+		if err := c.ShouldBindJSON(&req); err != nil {
+			c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+			return
+		}
+		n, err := svc.Strm.BatchActionDownloadTasks(c.Request.Context(), req.Action, req.IDs)
+		if err != nil {
+			c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+			return
+		}
+		c.JSON(http.StatusOK, gin.H{"affected": n, "action": req.Action})
+	}
+}
+
+func batchActionUploadsHandler(svc *service.Container) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		var req queueBatchReq
+		if err := c.ShouldBindJSON(&req); err != nil {
+			c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+			return
+		}
+		n, err := svc.Strm.BatchActionUploadTasks(c.Request.Context(), req.Action, req.IDs)
+		if err != nil {
+			c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+			return
+		}
+		c.JSON(http.StatusOK, gin.H{"affected": n, "action": req.Action})
+	}
+}
+
 // ─── 下载队列批量操作 ─────────────────────────────────────────────────────────
 
 func clearDoneDownloadsHandler(svc *service.Container) gin.HandlerFunc {
@@ -382,6 +482,50 @@ func clearFinishedDownloadsHandler(svc *service.Container) gin.HandlerFunc {
 	}
 }
 
+func clearCanceledDownloadsHandler(svc *service.Container) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		n, err := svc.Strm.ClearCanceledDownloadTasks(c.Request.Context())
+		if err != nil {
+			c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+			return
+		}
+		c.JSON(http.StatusOK, gin.H{"deleted": n})
+	}
+}
+
+func clearCanceledUploadsHandler(svc *service.Container) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		n, err := svc.Strm.ClearCanceledUploadTasks(c.Request.Context())
+		if err != nil {
+			c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+			return
+		}
+		c.JSON(http.StatusOK, gin.H{"deleted": n})
+	}
+}
+
+func clearDoneUploadsHandler(svc *service.Container) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		n, err := svc.Strm.ClearDoneUploadTasks(c.Request.Context())
+		if err != nil {
+			c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+			return
+		}
+		c.JSON(http.StatusOK, gin.H{"deleted": n})
+	}
+}
+
+func clearFinishedUploadsHandler(svc *service.Container) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		n, err := svc.Strm.ClearFinishedUploadTasks(c.Request.Context())
+		if err != nil {
+			c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+			return
+		}
+		c.JSON(http.StatusOK, gin.H{"deleted": n})
+	}
+}
+
 func retryAllFailedDownloadsHandler(svc *service.Container) gin.HandlerFunc {
 	return func(c *gin.Context) {
 		n, err := svc.Strm.RetryAllFailedDownloadTasks(c.Request.Context())
@@ -393,6 +537,17 @@ func retryAllFailedDownloadsHandler(svc *service.Container) gin.HandlerFunc {
 	}
 }
 
+func retryAllFailedUploadsHandler(svc *service.Container) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		n, err := svc.Strm.RetryAllFailedUploadTasks(c.Request.Context())
+		if err != nil {
+			c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+			return
+		}
+		c.JSON(http.StatusOK, gin.H{"retried": n})
+	}
+}
+
 func cancelPendingDownloadsHandler(svc *service.Container) gin.HandlerFunc {
 	return func(c *gin.Context) {
 		n, err := svc.Strm.CancelPendingDownloadTasks(c.Request.Context())
@@ -404,13 +559,28 @@ func cancelPendingDownloadsHandler(svc *service.Container) gin.HandlerFunc {
 	}
 }
 
+func cancelPendingUploadsHandler(svc *service.Container) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		n, err := svc.Strm.CancelPendingUploadTasks(c.Request.Context())
+		if err != nil {
+			c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+			return
+		}
+		c.JSON(http.StatusOK, gin.H{"canceled": n})
+	}
+}
+
 // ─── 公开播放端点 ──────────────────────────────────────────────────────────────
 
 // strmPlayHandler 处理 strm 文件指向的播放请求（Emby/Infuse 直接请求，无 JWT）。
 func strmPlayHandler(svc *service.Container) gin.HandlerFunc {
 	return func(c *gin.Context) {
 		provider := strings.TrimSpace(c.Param("provider"))
-		result, err := svc.Strm.ResolvePlay(c.Request.Context(), provider, url.Values(c.Request.URL.Query()))
+		q := url.Values(c.Request.URL.Query())
+		if userAgent := c.GetHeader("User-Agent"); userAgent != "" {
+			q.Set("__ua", userAgent)
+		}
+		result, err := svc.Strm.ResolvePlay(c.Request.Context(), provider, q)
 		if err != nil {
 			if errors.Is(err, service.ErrStrmPlayNotFound) {
 				c.Status(http.StatusNotFound)
@@ -454,6 +624,7 @@ func strmSyncPathFromReq(req strmSyncPathReq) *model.StrmSyncPath {
 		DeleteDir:      boolValue(req.DeleteDir, false),
 		Cron:           strings.TrimSpace(req.Cron),
 		EnableCron:     boolValue(req.EnableCron, false),
+		SyncMode:       strings.TrimSpace(req.SyncMode),
 		Enabled:        boolValue(req.Enabled, true),
 	}
 }

internal/handler/strm_routes_test.go

@@ -50,9 +50,18 @@ func TestStrmAdminRoutesAreRegistered(t *testing.T) {
 		"GET /api/admin/strm/downloads",
 		"POST /api/admin/strm/downloads/:id/cancel",
 		"POST /api/admin/strm/downloads/:id/retry",
+		"POST /api/admin/strm/downloads/clear-finished",
+		"POST /api/admin/strm/downloads/clear-canceled",
+		"POST /api/admin/strm/downloads/retry-failed",
+		"POST /api/admin/strm/downloads/cancel-pending",
 		"GET /api/admin/strm/uploads",
 		"POST /api/admin/strm/uploads/:id/cancel",
 		"POST /api/admin/strm/uploads/:id/retry",
+		"POST /api/admin/strm/uploads/clear-done",
+		"POST /api/admin/strm/uploads/clear-finished",
+		"POST /api/admin/strm/uploads/clear-canceled",
+		"POST /api/admin/strm/uploads/retry-failed",
+		"POST /api/admin/strm/uploads/cancel-pending",
 		"GET /api/strm/play/:provider/:file",
 	} {
 		if !routes[want] {

internal/handler/subtitles.go

@@ -11,7 +11,12 @@ import (
 
 func listSubtitlesHandler(svc *service.Container) gin.HandlerFunc {
 	return func(c *gin.Context) {
-		tracks, err := svc.Subtitle.Discover(c.Request.Context(), c.Param("id"))
+		id := c.Param("id")
+		if svc.EmbyRemote != nil && service.IsEmbyRemoteID(id) {
+			c.JSON(http.StatusOK, gin.H{"tracks": []service.SubtitleTrack{}})
+			return
+		}
+		tracks, err := svc.Subtitle.Discover(c.Request.Context(), id)
 		if err != nil {
 			c.JSON(http.StatusNotFound, gin.H{"error": err.Error()})
 			return
@@ -31,7 +36,7 @@ func serveSubtitleHandler(svc *service.Container) gin.HandlerFunc {
 			return
 		}
 		c.Header("Content-Type", "text/vtt; charset=utf-8")
-		c.Header("Cache-Control", "public, max-age=3600")
+		c.Header("Cache-Control", "no-cache, no-store, must-revalidate")
 		if err := svc.Subtitle.Serve(c.Request.Context(), c.Param("id"), path, c.Writer); err != nil {
 			c.JSON(http.StatusNotFound, gin.H{"error": err.Error()})
 			return

internal/handler/system_extra.go

@@ -58,12 +58,12 @@ func schemaHandler(_ *service.Container) gin.HandlerFunc {
 	return func(c *gin.Context) {
 		c.JSON(http.StatusOK, gin.H{
 			"groups": []gin.H{
-					{
-						"key":   "general",
-						"label": "常规",
-						"items": []gin.H{
-							{"key": "tmdb.language", "type": "select", "label": "TMDb 元数据语言"},
-							{"key": "transcode.enabled", "type": "toggle", "label": "启用转码"},
+				{
+					"key":   "general",
+					"label": "常规",
+					"items": []gin.H{
+						{"key": "tmdb.language", "type": "select", "label": "TMDb 元数据语言"},
+						{"key": "transcode.enabled", "type": "toggle", "label": "启用转码"},
 						{"key": "transcode.hw_accel", "type": "select", "label": "硬件编码器"},
 						{"key": "transcode.hw_enabled", "type": "toggle", "label": "启用硬件加速"},
 						{"key": "transcode.max_jobs", "type": "number", "label": "最大并发"},
@@ -120,10 +120,10 @@ func schemaHandler(_ *service.Container) gin.HandlerFunc {
 						{"key": "qbittorrent.password", "type": "text"},
 						{"key": "qbittorrent.savepath", "type": "text"},
 					},
-},
-					{
-						"key":   "system-update",
-						"label": "系统更新",
+				},
+				{
+					"key":   "system-update",
+					"label": "系统更新",
 					"items": []gin.H{
 						{"key": "system.update.image", "type": "text", "label": "应用镜像"},
 						{"key": "system.update.compose_dir", "type": "text", "label": "Docker Compose 安装目录"},

internal/handler/system_handler.go

@@ -1,144 +0,0 @@
-// Package handler — system tools detection.
-package handler
-
-import (
-	"net/http"
-	"os/exec"
-	"strings"
-
-	"github.com/gin-gonic/gin"
-	"go.uber.org/zap"
-
-	"github.com/ShukeBta/MMTL/internal/config"
-	"github.com/ShukeBta/MMTL/internal/service"
-)
-
-// SystemHandler handles system-related endpoints.
-type SystemHandler struct {
-	cfg *config.Config
-	log *zap.Logger
-	svc *service.Container
-}
-
-// NewSystemHandler is the constructor.
-func NewSystemHandler(cfg *config.Config, log *zap.Logger, svc *service.Container) *SystemHandler {
-	return &SystemHandler{cfg: cfg, log: log, svc: svc}
-}
-
-// ToolStatus represents the detection status of a system tool.
-type ToolStatus struct {
-	Name        string `json:"name"`
-	DisplayName string `json:"display_name"`
-	ConfigKey   string `json:"config_key"`
-	Path        string `json:"path,omitempty"`
-	Detected    bool   `json:"detected"`
-	Version     string `json:"version,omitempty"`
-}
-
-// GetToolsStatus returns the status of system tools.
-func (h *SystemHandler) GetToolsStatus(c *gin.Context) {
-	tools := []ToolStatus{
-		{Name: "ffprobe", DisplayName: "FFprobe", ConfigKey: "app.ffprobe_path"},
-		{Name: "ffmpeg", DisplayName: "FFmpeg", ConfigKey: "app.ffmpeg_path"},
-	}
-
-	for i := range tools {
-		// Check configured path first
-		var configuredPath string
-		switch tools[i].ConfigKey {
-		case "app.ffprobe_path":
-			configuredPath = h.cfg.App.FFprobePath
-			if configuredPath == "" {
-				configuredPath = "ffprobe"
-			}
-		case "app.ffmpeg_path":
-			configuredPath = h.cfg.App.FFmpegPath
-			if configuredPath == "" {
-				configuredPath = "ffmpeg"
-			}
-		}
-
-		// Try to find the tool
-		path, err := exec.LookPath(configuredPath)
-		if err == nil {
-			tools[i].Detected = true
-			tools[i].Path = path
-			// Try to get version
-			tools[i].Version = getToolVersion(path)
-		}
-	}
-
-	c.JSON(http.StatusOK, gin.H{
-		"tools": tools,
-	})
-}
-
-// getToolVersion attempts to get the version of a tool.
-func getToolVersion(path string) string {
-	out, err := exec.Command(path, "-version").Output()
-	if err != nil {
-		return ""
-	}
-
-	// Extract first line as version info
-	lines := strings.Split(string(out), "\n")
-	if len(lines) > 0 {
-		return strings.TrimSpace(lines[0])
-	}
-	return ""
-}
-
-// InstallTools attempts to auto-install system tools (ffmpeg/ffprobe)
-func (h *SystemHandler) InstallTools(c *gin.Context) {
-	h.log.Info("Received tools auto-install request")
-
-	// Call service layer to auto-install
-	ffprobePath, ffmpegPath := service.AutoInstallFFmpeg(h.log, h.cfg)
-
-	result := gin.H{
-		"installed": ffprobePath != "" || ffmpegPath != "",
-	}
-
-	if ffprobePath != "" {
-		result["ffprobe_path"] = ffprobePath
-		result["ffprobe_installed"] = true
-	}
-	if ffmpegPath != "" {
-		result["ffmpeg_path"] = ffmpegPath
-		result["ffmpeg_installed"] = true
-	}
-
-	// Re-detect tool status
-	tools := []ToolStatus{
-		{Name: "ffprobe", DisplayName: "FFprobe", ConfigKey: "app.ffprobe_path"},
-		{Name: "ffmpeg", DisplayName: "FFmpeg", ConfigKey: "app.ffmpeg_path"},
-	}
-
-	for i := range tools {
-		var configuredPath string
-		switch tools[i].ConfigKey {
-		case "app.ffprobe_path":
-			configuredPath = h.cfg.App.FFprobePath
-			if configuredPath == "" {
-				configuredPath = "ffprobe"
-			}
-		case "app.ffmpeg_path":
-			configuredPath = h.cfg.App.FFmpegPath
-			if configuredPath == "" {
-				configuredPath = "ffmpeg"
-			}
-		}
-
-		path, err := exec.LookPath(configuredPath)
-		if err == nil {
-			tools[i].Detected = true
-			tools[i].Path = path
-			tools[i].Version = getToolVersion(path)
-		}
-	}
-
-	result["tools"] = tools
-
-	h.log.Info("Tool installation completed", zap.Any("result", result))
-	c.JSON(http.StatusOK, result)
-}

internal/handler/task_helpers.go

@@ -7,4 +7,4 @@ func finishHTTPTask(task *service.TaskHandle, err error, stage, message string,
 		return
 	}
 	task.Finish(err, service.TaskUpdate{Stage: stage, Message: message, Metrics: metrics, Details: details})
-}
+}

internal/handler/tools_ffmpeg.go

@@ -0,0 +1,38 @@
+// Package handler — FFmpeg/FFprobe 工具安装端点。
+package handler
+
+import (
+	"net/http"
+
+	"github.com/gin-gonic/gin"
+
+	"github.com/ShukeBta/MMTL/internal/service"
+)
+
+// ffToolsStatusHandler 返回 ffmpeg/ffprobe 当前安装状态
+// （GET /api/admin/tools/ffmpeg/status）。
+func ffToolsStatusHandler(svc *service.Container) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		if svc == nil || svc.FFTools == nil {
+			c.JSON(http.StatusServiceUnavailable, gin.H{"error": "FFmpeg 工具服务不可用"})
+			return
+		}
+		c.JSON(http.StatusOK, svc.FFTools.Status(c.Request.Context()))
+	}
+}
+
+// ffToolsInstallHandler 触发后台下载安装（POST /api/admin/tools/ffmpeg/install）。
+// 自动匹配当前运行环境（OS+架构），安装到 data/tools/ffmpeg/ 并把路径写入设置。
+func ffToolsInstallHandler(svc *service.Container) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		if svc == nil || svc.FFTools == nil {
+			c.JSON(http.StatusServiceUnavailable, gin.H{"error": "FFmpeg 工具服务不可用"})
+			return
+		}
+		if err := svc.FFTools.StartInstall(c.Request.Context()); err != nil {
+			c.JSON(http.StatusConflict, gin.H{"error": err.Error()})
+			return
+		}
+		c.JSON(http.StatusOK, svc.FFTools.Status(c.Request.Context()))
+	}
+}

internal/handler/visibility.go

@@ -32,7 +32,14 @@ func mediaVisibilityForRequest(c *gin.Context, svc *service.Container) service.M
 		return visibility
 	}
 	visibility.IncludeNSFW = adultEnabled && profile.AllowAdult && !userHidesAdult
-	visibility.AllowedLibraryIDs = profileAllowedLibraryIDs(*profile)
+	profileAllowed := profileAllowedLibraryIDs(*profile)
+	if len(profileAllowed) > 0 {
+		if len(visibility.AllowedLibraryIDs) > 0 {
+			visibility.AllowedLibraryIDs = service.IntersectStrings(visibility.AllowedLibraryIDs, profileAllowed)
+		} else {
+			visibility.AllowedLibraryIDs = profileAllowed
+		}
+	}
 	if !visibility.IncludeNSFW {
 		visibility.HiddenLibraryIDs = service.AdultLibraryIDs(c.Request.Context(), svc.Repo)
 	} else {

internal/handler/watch_history.go

@@ -125,6 +125,18 @@ func historyContinueHandler(svc *service.Container) gin.HandlerFunc {
 		for _, r := range rows {
 			m, ok := mIdx[r.MediaID]
 			if !ok {
+				if svc.EmbyRemote != nil && service.IsEmbyRemoteID(r.MediaID) {
+					mountID, remoteID, _ := service.DecodeEmbyRemoteID(r.MediaID)
+					if mount, acct, _ := svc.EmbyRemote.ResolveMount(c.Request.Context(), mountID); mount != nil && acct != nil {
+						if rm, err := svc.EmbyRemote.RemoteMediaDetail(c.Request.Context(), mount, acct, remoteID); err == nil && rm != nil {
+							out = append(out, gin.H{
+								"history": r,
+								"media":   *rm,
+							})
+							continue
+						}
+					}
+				}
 				continue
 			}
 			out = append(out, gin.H{
@@ -163,7 +175,7 @@ func historyDeleteHandler(svc *service.Container) gin.HandlerFunc {
 			c.JSON(http.StatusBadRequest, gin.H{"error": "status must be completed or incomplete"})
 			return
 		}
-		res := q.Delete(&model.PlaybackHistory{})
+		res := q.Unscoped().Delete(&model.PlaybackHistory{})
 		if err := res.Error; err != nil {
 			c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
 			return

internal/middleware/emby_auth.go

@@ -42,14 +42,14 @@ func EmbyAuthRequired(secret string) gin.HandlerFunc {
 			return []byte(secret), nil
 		})
 
-if err != nil || !parsed.Valid || claims.UserID == "" {
-		c.JSON(http.StatusUnauthorized, gin.H{
-			"Code":    40101,
-			"Message": "Invalid token",
-		})
-		c.Abort()
-		return
-	}
+		if err != nil || !parsed.Valid || claims.UserID == "" {
+			c.JSON(http.StatusUnauthorized, gin.H{
+				"Code":    40101,
+				"Message": "Invalid token",
+			})
+			c.Abort()
+			return
+		}
 
 		c.Set(EmbyCtxUserID, claims.UserID)
 		c.Set(CtxUserID, claims.UserID)

internal/middleware/middleware_test.go

@@ -106,13 +106,13 @@ func TestAuthRequiredSyncsAccessTokenCookieFromBearer(t *testing.T) {
 		},
 	})
 
-		router := gin.New()
-		router.Use(AuthRequired(secret))
-		router.GET("/api/test-auth-cookie", func(c *gin.Context) {
-			c.JSON(http.StatusOK, gin.H{"ok": true})
-		})
+	router := gin.New()
+	router.Use(AuthRequired(secret))
+	router.GET("/api/test-auth-cookie", func(c *gin.Context) {
+		c.JSON(http.StatusOK, gin.H{"ok": true})
+	})
 
-		req := httptest.NewRequest(http.MethodGet, "/api/test-auth-cookie", nil)
+	req := httptest.NewRequest(http.MethodGet, "/api/test-auth-cookie", nil)
 	req.Header.Set("Authorization", "Bearer "+token)
 	w := httptest.NewRecorder()
 	router.ServeHTTP(w, req)

internal/model/api_config.go

@@ -39,7 +39,7 @@ func PredefinedProviders() []ApiProvider {
 		{ID: "openai", Name: "OpenAI", Description: "GPT 系列模型", HasAPIKey: true, HasBaseURL: true},
 		{ID: "deepseek", Name: "DeepSeek", Description: "DeepSeek 大模型", HasAPIKey: true, HasBaseURL: true},
 		{ID: "siliconflow", Name: "SiliconFlow", Description: "AI 模型聚合 API", HasAPIKey: true, HasBaseURL: true},
-			{ID: "adult", Name: "Adult / 番号", Description: "JavDB/JavBus 成人内容元数据与 Cookie 凭据", HasAPIKey: true, HasBaseURL: true},
-			{ID: "metatube", Name: "MetaTube", Description: "MetaTube Server 番号元数据后端服务", HasAPIKey: true, HasBaseURL: true},
-		}
+		{ID: "adult", Name: "Adult / 番号", Description: "JavDB/JavBus 成人内容元数据与 Cookie 凭据", HasAPIKey: true, HasBaseURL: true},
+		{ID: "metatube", Name: "MetaTube", Description: "MetaTube Server 番号元数据后端服务", HasAPIKey: true, HasBaseURL: true},
+	}
 }

internal/model/emby_mount.go

@@ -0,0 +1,20 @@
+// Emby 媒体库挂载模型。
+//
+// 远程 Emby 账号（StrmAccount.Provider = emby_remote）只是一个服务器连接；
+// 「挂载」才决定把该服务器的哪个媒体库（View）暴露到本项目的媒体库中。
+// 这样同一个 Emby 服务器可以按库选择挂载，且每个挂载独立控制是否由 MMTL
+// 代理播放流量。
+package model
+
+// EmbyMount 是远程 Emby 服务器上一个媒体库（View）的挂载配置。
+type EmbyMount struct {
+	Base
+	AccountID      string `gorm:"size:36;index" json:"account_id"`   // StrmAccount.ID（provider=emby_remote）
+	RemoteViewID   string `gorm:"size:128" json:"remote_view_id"`    // 远程 Emby 的 View Id
+	RemoteViewName string `gorm:"size:255" json:"remote_view_name"`  // 远程媒体库原名（展示冗余）
+	CollectionType string `gorm:"size:32" json:"collection_type"`    // movies / tvshows / music ...
+	Name           string `gorm:"size:255" json:"name,omitempty"`    // 覆盖显示名（可选，默认「账号 · 库名」）
+	SortOrder      int    `gorm:"default:0;index" json:"sort_order"` // 手动排序用，越小越靠前
+	ProxyPlay      bool   `gorm:"default:false" json:"proxy_play"`   // 该挂载播放流量是否经 MMTL 反向代理
+	Enabled        bool   `gorm:"default:true" json:"enabled"`       // 是否在媒体库中展示
+}

internal/model/library_media.go

@@ -3,12 +3,14 @@ package model
 // Library 表示一个逻辑媒体库。Path 保留为兼容字段，指向第一条 LibraryRoot。
 type Library struct {
 	Base
-	Name     string        `gorm:"size:128;not null" json:"name"`
-	Path     string        `gorm:"size:1024;not null" json:"path"`
-	Type     string        `gorm:"size:16;not null;default:movie" json:"type"` // movie / tv / anime / music
-	CoverURL string        `gorm:"size:1024" json:"cover_url,omitempty"`
-	Enabled  bool          `gorm:"default:true" json:"enabled"`
-	Roots    []LibraryRoot `gorm:"foreignKey:LibraryID" json:"roots,omitempty"`
+	Name            string        `gorm:"size:128;not null" json:"name"`
+	Path            string        `gorm:"size:1024;not null" json:"path"`
+	Type            string        `gorm:"size:16;not null;default:movie" json:"type"` // movie / tv / anime / music
+	CoverURL        string        `gorm:"size:1024" json:"cover_url,omitempty"`
+	Enabled         bool          `gorm:"default:true" json:"enabled"`
+	SortOrder       int           `gorm:"index;default:0" json:"sort_order"`     // 手动拖拽排序用，越小越靠前
+	CarouselEnabled bool          `gorm:"default:false" json:"carousel_enabled"` // 是否参与首页海报轮播（默认不参与）
+	Roots           []LibraryRoot `gorm:"foreignKey:LibraryID" json:"roots,omitempty"`
 }
 
 // LibraryRoot 是逻辑媒体库下的一条真实物理/挂载路径。

internal/model/model.go

@@ -56,5 +56,8 @@ func AllModels() []interface{} {
 		&StrmSyncRecord{},
 		&StrmDownloadTask{},
 		&StrmUploadTask{},
+		&StrmDirCache{},
+		&ScrapeTask{},
+		&EmbyMount{},
 	}
 }

internal/model/permission.go

@@ -16,7 +16,7 @@ type UserPermission struct {
 	UserID string `gorm:"uniqueIndex;size:36;not null" json:"user_id"`
 
 	// 默认开启（6项）- Basic
-	CanViewDashboard   bool `gorm:"default:true" json:"can_view_dashboard"`
+	CanViewDashboard  bool `gorm:"default:true" json:"can_view_dashboard"`
 	CanPlayMedia      bool `gorm:"default:true" json:"can_play_media"`
 	CanCast           bool `gorm:"default:true" json:"can_cast"`
 	CanExternalPlayer bool `gorm:"default:true" json:"can_external_player"`
@@ -24,18 +24,18 @@ type UserPermission struct {
 	CanViewHistory    bool `gorm:"default:true" json:"can_view_history"`
 
 	// 默认关闭（13项）- Advanced
-	CanEditMedia             bool `gorm:"default:false" json:"can_edit_media"`
-	CanRescrape              bool `gorm:"default:false" json:"can_rescrape"`
-	CanUseAI                 bool `gorm:"default:false" json:"can_use_ai"`
-	CanCaptureFrames         bool `gorm:"default:false" json:"can_capture_frames"`
-		CanManageDownloads       bool `gorm:"default:false" json:"can_manage_downloads"`
-		CanManageSubscriptions   bool `gorm:"default:false" json:"can_manage_subscriptions"`
-	CanManageSites           bool `gorm:"default:false" json:"can_manage_sites"`
-	CanUseAIAssistant        bool `gorm:"default:false" json:"can_use_ai_assistant"`
-	CanManageUsers           bool `gorm:"default:false" json:"can_manage_users"`
-	CanManageFiles           bool `gorm:"default:false" json:"can_manage_files"`
-	CanManageStrm            bool `gorm:"default:false" json:"can_manage_strm"`
-	CanAccessSettings        bool `gorm:"default:false" json:"can_access_settings"`
+	CanEditMedia           bool `gorm:"default:false" json:"can_edit_media"`
+	CanRescrape            bool `gorm:"default:false" json:"can_rescrape"`
+	CanUseAI               bool `gorm:"default:false" json:"can_use_ai"`
+	CanCaptureFrames       bool `gorm:"default:false" json:"can_capture_frames"`
+	CanManageDownloads     bool `gorm:"default:false" json:"can_manage_downloads"`
+	CanManageSubscriptions bool `gorm:"default:false" json:"can_manage_subscriptions"`
+	CanManageSites         bool `gorm:"default:false" json:"can_manage_sites"`
+	CanUseAIAssistant      bool `gorm:"default:false" json:"can_use_ai_assistant"`
+	CanManageUsers         bool `gorm:"default:false" json:"can_manage_users"`
+	CanManageFiles         bool `gorm:"default:false" json:"can_manage_files"`
+	CanManageStrm          bool `gorm:"default:false" json:"can_manage_strm"`
+	CanAccessSettings      bool `gorm:"default:false" json:"can_access_settings"`
 
 	CreatedAt time.Time `json:"created_at"`
 	UpdatedAt time.Time `json:"updated_at"`
@@ -52,26 +52,26 @@ func (p *UserPermission) BeforeCreate(_ *gorm.DB) error {
 // NewDefaultPermission 创建带有默认权限的 UserPermission。
 func NewDefaultPermission(userID string) *UserPermission {
 	return &UserPermission{
-		ID:                    uuid.NewString(),
-		UserID:                userID,
-		CanViewDashboard:      true,
-		CanPlayMedia:          true,
-		CanCast:               true,
-		CanExternalPlayer:     true,
-		CanFavorite:           true,
-		CanViewHistory:        true,
-		CanEditMedia:          false,
-		CanRescrape:           false,
-		CanUseAI:              false,
-		CanCaptureFrames:      false,
-			CanManageDownloads:    false,
-			CanManageSubscriptions: false,
-		CanManageSites:        false,
-		CanUseAIAssistant:     false,
-		CanManageUsers:        false,
-		CanManageFiles:        false,
-		CanManageStrm:         false,
-		CanAccessSettings:     false,
+		ID:                     uuid.NewString(),
+		UserID:                 userID,
+		CanViewDashboard:       true,
+		CanPlayMedia:           true,
+		CanCast:                true,
+		CanExternalPlayer:      true,
+		CanFavorite:            true,
+		CanViewHistory:         true,
+		CanEditMedia:           false,
+		CanRescrape:            false,
+		CanUseAI:               false,
+		CanCaptureFrames:       false,
+		CanManageDownloads:     false,
+		CanManageSubscriptions: false,
+		CanManageSites:         false,
+		CanUseAIAssistant:      false,
+		CanManageUsers:         false,
+		CanManageFiles:         false,
+		CanManageStrm:          false,
+		CanAccessSettings:      false,
 	}
 }
 
@@ -88,13 +88,13 @@ func (p *UserPermission) PermissionMap() map[string]bool {
 		"can_rescrape":             p.CanRescrape,
 		"can_use_ai":               p.CanUseAI,
 		"can_capture_frames":       p.CanCaptureFrames,
-			"can_manage_downloads":     p.CanManageDownloads,
-			"can_manage_subscriptions":  p.CanManageSubscriptions,
+		"can_manage_downloads":     p.CanManageDownloads,
+		"can_manage_subscriptions": p.CanManageSubscriptions,
 		"can_manage_sites":         p.CanManageSites,
-		"can_use_ai_assistant":      p.CanUseAIAssistant,
+		"can_use_ai_assistant":     p.CanUseAIAssistant,
 		"can_manage_users":         p.CanManageUsers,
 		"can_manage_files":         p.CanManageFiles,
 		"can_manage_strm":          p.CanManageStrm,
-		"can_access_settings":     p.CanAccessSettings,
+		"can_access_settings":      p.CanAccessSettings,
 	}
 }

internal/model/scrape_task.go

@@ -0,0 +1,34 @@
+package model
+
+import "time"
+
+const (
+	ScrapeTaskPending  = "pending"
+	ScrapeTaskRunning  = "running"
+	ScrapeTaskDone     = "done"
+	ScrapeTaskFailed   = "failed"
+	ScrapeTaskCanceled = "canceled"
+)
+
+// ScrapeTask 表示一条持久化的媒体刮削任务。
+type ScrapeTask struct {
+	Base
+	MediaID        string     `gorm:"index;size:36" json:"media_id"`
+	LibraryID      string     `gorm:"index;size:36" json:"library_id"`
+	LibraryName    string     `gorm:"size:128" json:"library_name"`
+	MediaTitle     string     `gorm:"size:255;not null" json:"media_title"`
+	MediaPath      string     `gorm:"size:1024;not null" json:"media_path"`
+	MediaType      string     `gorm:"size:16" json:"media_type"` // movie / tv / anime / adult
+	Provider       string     `gorm:"size:32" json:"provider"`   // tmdb / douban / bangumi / thetvdb / metatube
+	MatchedTitle   string     `gorm:"size:255" json:"matched_title"`
+	MatchedYear    int        `json:"matched_year"`
+	PosterURL      string     `gorm:"size:1024" json:"poster_url"`
+	BackdropURL    string     `gorm:"size:1024" json:"backdrop_url"`
+	Status         string     `gorm:"index;size:16;default:pending" json:"status"` // pending / running / done / failed / canceled
+	Error          string     `gorm:"type:text" json:"error"`
+	RetryCount     int        `gorm:"default:0" json:"retry_count"`
+	EpisodeImages  bool       `gorm:"default:true" json:"episode_images"`
+	RefreshMatched bool       `gorm:"default:false" json:"refresh_matched"`
+	StartedAt      *time.Time `json:"started_at,omitempty"`
+	FinishedAt     *time.Time `json:"finished_at,omitempty"`
+}

internal/model/strm.go

@@ -13,6 +13,7 @@ const (
 	StrmProviderCloudDrive = "clouddrive2" // CloudDrive2（WebDAV 桥接）
 	StrmProviderOpenList   = "openlist"    // OpenList / AList 兼容桥接
 	StrmProviderLocal      = "local"       // 本地目录（无账号）
+	StrmProviderEmbyRemote = "emby_remote" // 远程 Emby 服务器（API 网关聚合挂载，不走 STRM 同步）
 )
 
 // StrmAccount 是一个网盘账号（STRM 同步数据源凭据）。
@@ -37,23 +38,30 @@ type StrmSyncPath struct {
 	RemotePath string `gorm:"size:1024" json:"remote_path"`    // 远端目录：115=目录ID，OpenList/CD2=路径，local=源目录
 	LocalPath  string `gorm:"size:1024" json:"local_path"`     // STRM/元数据本地输出目录
 	// STRM 链接配置（空值继承全局 strm.* 设置）
-	StrmBaseURL     string     `gorm:"size:512" json:"strm_base_url"`     // 覆盖 strm.base_url
-	VideoExt        string     `gorm:"size:512" json:"video_ext"`         // 逗号分隔，覆盖 strm.video_ext
-	MetaExt         string     `gorm:"size:512" json:"meta_ext"`          // 逗号分隔，覆盖 strm.meta_ext
-	ExcludeName     string     `gorm:"size:512" json:"exclude_name"`      // 逗号分隔，文件名包含即跳过
-	MinVideoSizeMB  int64      `json:"min_video_size_mb"`                 // 小于该大小（MB）的视频不生成 STRM
-	AddPath         int        `json:"add_path"`                          // STRM 链接 path 参数：1=完整远端路径 2=仅文件名 3=不带
-	DownloadMeta    bool       `gorm:"default:true" json:"download_meta"` // 同步时下载元数据文件（nfo/图片/字幕）
-	UploadMeta      bool       `json:"upload_meta"`                       // 同步时把本地元数据上传到远端
-	DeleteDir       bool       `json:"delete_dir"`                        // 清理多余文件时删除空目录
-	Cron            string     `gorm:"size:128" json:"cron"`              // 5 段 cron 表达式（可选）
-	EnableCron      bool       `json:"enable_cron"`                       // 是否按 Cron 定时同步
+	StrmBaseURL     string     `gorm:"size:512" json:"strm_base_url"`                  // 覆盖 strm.base_url
+	VideoExt        string     `gorm:"size:512" json:"video_ext"`                      // 逗号分隔，覆盖 strm.video_ext
+	MetaExt         string     `gorm:"size:512" json:"meta_ext"`                       // 逗号分隔，覆盖 strm.meta_ext
+	ExcludeName     string     `gorm:"size:512" json:"exclude_name"`                   // 逗号分隔，文件名包含即跳过
+	MinVideoSizeMB  int64      `json:"min_video_size_mb"`                              // 小于该大小（MB）的视频不生成 STRM
+	AddPath         int        `json:"add_path"`                                       // STRM 链接 path 参数：1=完整远端路径 2=仅文件名 3=不带
+	DownloadMeta    bool       `gorm:"default:true" json:"download_meta"`              // 同步时下载元数据文件（nfo/图片/字幕）
+	UploadMeta      bool       `json:"upload_meta"`                                    // 同步时把本地元数据上传到远端
+	DeleteDir       bool       `json:"delete_dir"`                                     // 清理多余文件时删除空目录
+	Cron            string     `gorm:"size:128" json:"cron"`                           // 5 段 cron 表达式（可选）
+	EnableCron      bool       `json:"enable_cron"`                                    // 是否按 Cron 定时同步
+	SyncMode        string     `gorm:"size:32;default:'incremental'" json:"sync_mode"` // 默认同步模式：incremental / full
 	Enabled         bool       `gorm:"default:true" json:"enabled"`
 	LastSyncAt      *time.Time `json:"last_sync_at"`
 	LastSyncStatus  string     `gorm:"size:16" json:"last_sync_status"` // idle/running/ok/error/canceled
 	LastSyncMessage string     `gorm:"size:1024" json:"last_sync_message"`
 }
 
+// STRM 同步类型。
+const (
+	StrmSyncTypeIncremental = "incremental"
+	StrmSyncTypeFull        = "full"
+)
+
 // StrmSyncRecord 是一次同步执行的记录。
 const (
 	StrmSyncRecordPending  = "pending"
@@ -66,6 +74,7 @@ const (
 type StrmSyncRecord struct {
 	Base
 	SyncPathID string     `gorm:"size:36;index" json:"sync_path_id"`
+	SyncType   string     `gorm:"size:32;default:'incremental'" json:"sync_type"` // incremental / full
 	Status     string     `gorm:"size:16;index" json:"status"`
 	Total      int64      `json:"total"`    // 远端发现的文件总数
 	NewStrm    int64      `json:"new_strm"` // 本次新建/更新的 strm 数
@@ -123,3 +132,11 @@ type StrmUploadTask struct {
 	StartedAt  *time.Time `json:"started_at"`
 	FinishedAt *time.Time `json:"finished_at"`
 }
+
+// StrmDirCache 缓存远端网盘目录 ID 与相对路径映射（支持 115 增量同步秒级寻址）。
+type StrmDirCache struct {
+	Base
+	SyncPathID string `gorm:"size:36;index:idx_strm_dir_cache,priority:1" json:"sync_path_id"`
+	DirID      string `gorm:"size:128;index:idx_strm_dir_cache,priority:2" json:"dir_id"`
+	Path       string `gorm:"size:1024" json:"path"` // 相对根目录的路径
+}

internal/model/user.go

@@ -1,6 +1,10 @@
 package model
 
-import "time"
+import (
+	"encoding/json"
+	"strings"
+	"time"
+)
 
 // User 是本地账户。第一个注册的管理员（或种子管理员）获得 "admin" 角色；
 // 其他所有用户默认为 "user"。
@@ -17,6 +21,10 @@ type User struct {
 	ForcePasswordReset bool       `gorm:"default:false" json:"force_password_reset"`
 	IsActive           bool       `gorm:"default:true" json:"is_active"`
 	LastLoginAt        *time.Time `json:"last_login_at,omitempty"`
+	// AllowedLibraryIDs 存储管理员为该用户指定的受限可访问媒体库 ID 列表（JSON 字符串）。
+	// 为空时代表不限制（全库可访问）。
+	AllowedLibraryIDs  string   `gorm:"type:text" json:"-"`
+	AllowedLibraryList []string `gorm:"-" json:"allowed_library_ids,omitempty"`
 	// ExpiredAt is the account expiry time. Nil means the account never
 	// expires. When set and in the past, the account is treated as expired
 	// (login blocked) until an admin or a redemption code renews it.
@@ -31,3 +39,30 @@ type User struct {
 	RealtimeOnline      bool       `gorm:"-" json:"realtime_online,omitempty"`
 	RealtimeDeviceCount int        `gorm:"-" json:"realtime_device_count,omitempty"`
 }
+
+// DecodeAllowedLibraryIDs 解析 AllowedLibraryIDs 字段。
+func (u *User) DecodeAllowedLibraryIDs() []string {
+	if u == nil || strings.TrimSpace(u.AllowedLibraryIDs) == "" {
+		return nil
+	}
+	var ids []string
+	if err := json.Unmarshal([]byte(u.AllowedLibraryIDs), &ids); err != nil {
+		return nil
+	}
+	var out []string
+	for _, id := range ids {
+		trimmed := strings.TrimSpace(id)
+		if trimmed != "" {
+			out = append(out, trimmed)
+		}
+	}
+	return out
+}
+
+// PopulateComputedFields 填充非 DB 虚拟计算字段（如 AllowedLibraryList）。
+func (u *User) PopulateComputedFields() {
+	if u == nil {
+		return
+	}
+	u.AllowedLibraryList = u.DecodeAllowedLibraryIDs()
+}

internal/repository/api_config_repository.go

@@ -62,9 +62,9 @@ func (r *ApiConfigRepository) Update(ctx context.Context, c *model.ApiConfig) er
 	}).Error
 }
 
-// Delete removes an API config.
+// Delete 物理删除 API 配置。
 func (r *ApiConfigRepository) Delete(ctx context.Context, provider string) error {
-	return r.db.WithContext(ctx).Where("provider = ?", provider).Delete(&model.ApiConfig{}).Error
+	return r.db.WithContext(ctx).Unscoped().Where("provider = ?", provider).Delete(&model.ApiConfig{}).Error
 }
 
 // UpdateTestResult 更新测试结果。

internal/repository/emby_mount_repository.go

@@ -0,0 +1,127 @@
+package repository
+
+import (
+	"context"
+	"errors"
+	"time"
+
+	"gorm.io/gorm"
+
+	"github.com/ShukeBta/MMTL/internal/model"
+)
+
+// EmbyMountRepository 持久化远程 Emby 媒体库挂载。
+type EmbyMountRepository struct{ db *gorm.DB }
+
+func (r *EmbyMountRepository) Create(ctx context.Context, m *model.EmbyMount) error {
+	return withSQLiteBusyRetry(ctx, func() error {
+		return r.db.WithContext(ctx).Transaction(func(tx *gorm.DB) error {
+			if m != nil && m.SortOrder == 0 {
+				var maxSort int
+				_ = tx.Model(&model.EmbyMount{}).Select("COALESCE(MAX(sort_order), -1)").Scan(&maxSort)
+				m.SortOrder = maxSort + 1
+			}
+			return tx.Create(m).Error
+		})
+	})
+}
+
+func (r *EmbyMountRepository) CreateInBatches(ctx context.Context, mounts []*model.EmbyMount, batchSize int) error {
+	if len(mounts) == 0 {
+		return nil
+	}
+	if batchSize <= 0 {
+		batchSize = 50
+	}
+	return withSQLiteBusyRetry(ctx, func() error {
+		return r.db.WithContext(ctx).Transaction(func(tx *gorm.DB) error {
+			var maxSort int
+			_ = tx.Model(&model.EmbyMount{}).Select("COALESCE(MAX(sort_order), -1)").Scan(&maxSort)
+			for _, m := range mounts {
+				if m != nil && m.SortOrder == 0 {
+					maxSort++
+					m.SortOrder = maxSort
+				}
+			}
+			return tx.CreateInBatches(mounts, batchSize).Error
+		})
+	})
+}
+
+func (r *EmbyMountRepository) FindByID(ctx context.Context, id string) (*model.EmbyMount, error) {
+	var m model.EmbyMount
+	err := r.db.WithContext(ctx).Where("id = ?", id).First(&m).Error
+	if errors.Is(err, gorm.ErrRecordNotFound) {
+		return nil, nil
+	}
+	if err != nil {
+		return nil, err
+	}
+	return &m, nil
+}
+
+func (r *EmbyMountRepository) List(ctx context.Context) ([]model.EmbyMount, error) {
+	var rows []model.EmbyMount
+	err := r.db.WithContext(ctx).Order("sort_order asc, created_at asc").Find(&rows).Error
+	return rows, err
+}
+
+func (r *EmbyMountRepository) ListByAccountID(ctx context.Context, accountID string) ([]model.EmbyMount, error) {
+	var rows []model.EmbyMount
+	err := r.db.WithContext(ctx).Where("account_id = ?", accountID).Order("sort_order asc, created_at asc").Find(&rows).Error
+	return rows, err
+}
+
+func (r *EmbyMountRepository) SetSortOrder(ctx context.Context, ids []string) error {
+	if len(ids) == 0 {
+		return nil
+	}
+	return withSQLiteBusyRetry(ctx, func() error {
+		return r.db.WithContext(ctx).Transaction(func(tx *gorm.DB) error {
+			for i, id := range ids {
+				if err := tx.Model(&model.EmbyMount{}).Where("id = ?", id).
+					Update("sort_order", i).Error; err != nil {
+					return err
+				}
+			}
+			return nil
+		})
+	})
+}
+
+func (r *EmbyMountRepository) CountByAccountID(ctx context.Context, accountID string) (int64, error) {
+	var count int64
+	err := r.db.WithContext(ctx).Model(&model.EmbyMount{}).Where("account_id = ?", accountID).Count(&count).Error
+	return count, err
+}
+
+func (r *EmbyMountRepository) Update(ctx context.Context, m *model.EmbyMount) error {
+	return withSQLiteBusyRetry(ctx, func() error {
+		return r.db.WithContext(ctx).Model(&model.EmbyMount{}).Where("id = ?", m.ID).Updates(map[string]any{
+			"name":             m.Name,
+			"proxy_play":       m.ProxyPlay,
+			"enabled":          m.Enabled,
+			"remote_view_id":   m.RemoteViewID,
+			"remote_view_name": m.RemoteViewName,
+			"collection_type":  m.CollectionType,
+			"updated_at":       time.Now(),
+		}).Error
+	})
+}
+
+func (r *EmbyMountRepository) Delete(ctx context.Context, id string) error {
+	return withSQLiteBusyRetry(ctx, func() error {
+		return r.db.WithContext(ctx).Where("id = ?", id).Delete(&model.EmbyMount{}).Error
+	})
+}
+
+// DeleteByAccountID 删除账号下全部挂载（删除账号时级联清理）。
+func (r *EmbyMountRepository) DeleteByAccountID(ctx context.Context, accountID string) (int64, error) {
+	var count int64
+	err := withSQLiteBusyRetry(ctx, func() error {
+		res := r.db.WithContext(ctx).Where("account_id = ?", accountID).Delete(&model.EmbyMount{})
+		count = res.RowsAffected
+		return res.Error
+	})
+	return count, err
+}

internal/repository/emby_mount_test.go

@@ -0,0 +1,74 @@
+package repository
+
+import (
+	"testing"
+
+	"github.com/glebarez/sqlite"
+	"gorm.io/gorm"
+
+	"github.com/ShukeBta/MMTL/internal/database"
+	"github.com/ShukeBta/MMTL/internal/model"
+)
+
+func TestEmbyMountSortOrderAndReorder(t *testing.T) {
+	db, err := gorm.Open(sqlite.Open(":memory:"), &gorm.Config{})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err := database.AutoMigrate(db); err != nil {
+		t.Fatalf("migrate: %v", err)
+	}
+	repos := New(db)
+	ctx := t.Context()
+
+	// 1. Create mounts and verify auto-assigned sort_order
+	m1 := &model.EmbyMount{AccountID: "acct-1", RemoteViewID: "view-1", Name: "Mount 1"}
+	m2 := &model.EmbyMount{AccountID: "acct-1", RemoteViewID: "view-2", Name: "Mount 2"}
+	m3 := &model.EmbyMount{AccountID: "acct-1", RemoteViewID: "view-3", Name: "Mount 3"}
+
+	if err := repos.EmbyMount.Create(ctx, m1); err != nil {
+		t.Fatalf("create m1: %v", err)
+	}
+	if err := repos.EmbyMount.Create(ctx, m2); err != nil {
+		t.Fatalf("create m2: %v", err)
+	}
+	if err := repos.EmbyMount.Create(ctx, m3); err != nil {
+		t.Fatalf("create m3: %v", err)
+	}
+
+	if m1.SortOrder >= m2.SortOrder || m2.SortOrder >= m3.SortOrder {
+		t.Fatalf("expected ascending sort order on create: m1=%d, m2=%d, m3=%d",
+			m1.SortOrder, m2.SortOrder, m3.SortOrder)
+	}
+
+	// 2. Query list and verify initial order
+	list, err := repos.EmbyMount.List(ctx)
+	if err != nil {
+		t.Fatalf("list mounts: %v", err)
+	}
+	if len(list) != 3 || list[0].ID != m1.ID || list[1].ID != m2.ID || list[2].ID != m3.ID {
+		t.Fatalf("unexpected list order: %+v", list)
+	}
+
+	// 3. Reorder: m3, m1, m2
+	if err := repos.EmbyMount.SetSortOrder(ctx, []string{m3.ID, m1.ID, m2.ID}); err != nil {
+		t.Fatalf("SetSortOrder failed: %v", err)
+	}
+
+	// 4. Query list again and verify updated order
+	reordered, err := repos.EmbyMount.List(ctx)
+	if err != nil {
+		t.Fatalf("list mounts after reorder: %v", err)
+	}
+	if len(reordered) != 3 {
+		t.Fatalf("expected 3 mounts, got %d", len(reordered))
+	}
+	if reordered[0].ID != m3.ID || reordered[1].ID != m1.ID || reordered[2].ID != m2.ID {
+		t.Fatalf("expected order [m3, m1, m2], got: %s, %s, %s",
+			reordered[0].ID, reordered[1].ID, reordered[2].ID)
+	}
+	if reordered[0].SortOrder != 0 || reordered[1].SortOrder != 1 || reordered[2].SortOrder != 2 {
+		t.Fatalf("unexpected sort orders: %d, %d, %d",
+			reordered[0].SortOrder, reordered[1].SortOrder, reordered[2].SortOrder)
+	}
+}

internal/repository/favorite_repository.go

@@ -23,7 +23,7 @@ func (r *FavoriteRepository) Toggle(ctx context.Context, userID, mediaID string)
 	if err != nil {
 		return false, err
 	}
-	return false, r.db.WithContext(ctx).Delete(&f).Error
+	return false, r.db.WithContext(ctx).Unscoped().Delete(&f).Error
 }
 
 // ListByUser returns all favourite media IDs for a user.

internal/repository/library_repository.go

@@ -15,6 +15,11 @@ type LibraryRepository struct{ db *gorm.DB }
 
 // Create persists a new library row.
 func (r *LibraryRepository) Create(ctx context.Context, l *model.Library) error {
+	if l != nil && l.SortOrder == 0 {
+		var maxSort int
+		_ = r.db.WithContext(ctx).Model(&model.Library{}).Select("COALESCE(MAX(sort_order), -1)").Scan(&maxSort)
+		l.SortOrder = maxSort + 1
+	}
 	return r.db.WithContext(ctx).Create(l).Error
 }
 
@@ -23,6 +28,11 @@ func (r *LibraryRepository) CreateWithRoots(ctx context.Context, l *model.Librar
 		return r.Create(ctx, l)
 	}
 	return r.db.WithContext(ctx).Transaction(func(tx *gorm.DB) error {
+		if l != nil && l.SortOrder == 0 {
+			var maxSort int
+			_ = tx.Model(&model.Library{}).Select("COALESCE(MAX(sort_order), -1)").Scan(&maxSort)
+			l.SortOrder = maxSort + 1
+		}
 		if err := tx.Create(l).Error; err != nil {
 			return err
 		}
@@ -50,7 +60,7 @@ func (r *LibraryRepository) CreateWithRoots(ctx context.Context, l *model.Librar
 // List returns all enabled+disabled libraries.
 func (r *LibraryRepository) List(ctx context.Context) ([]model.Library, error) {
 	var ls []model.Library
-	q := r.db.WithContext(ctx).Order("created_at asc")
+	q := r.db.WithContext(ctx).Order("sort_order asc, created_at asc")
 	if r.hasLibraryRootsTable() {
 		q = q.Preload("Roots", func(db *gorm.DB) *gorm.DB {
 			return db.Order("sort_order asc, created_at asc")
@@ -60,6 +70,23 @@ func (r *LibraryRepository) List(ctx context.Context) ([]model.Library, error) {
 	return ls, err
 }
 
+// SetSortOrder assigns sort_order to libraries, preserving position order for
+// any library not present in the provided map.
+func (r *LibraryRepository) SetSortOrder(ctx context.Context, ids []string) error {
+	if len(ids) == 0 {
+		return nil
+	}
+	return r.db.WithContext(ctx).Transaction(func(tx *gorm.DB) error {
+		for i, id := range ids {
+			if err := tx.Model(&model.Library{}).Where("id = ?", id).
+				Update("sort_order", i).Error; err != nil {
+				return err
+			}
+		}
+		return nil
+	})
+}
+
 // FindByID returns the library, or (nil, nil) when missing.
 func (r *LibraryRepository) FindByID(ctx context.Context, id string) (*model.Library, error) {
 	var l model.Library
@@ -79,10 +106,9 @@ func (r *LibraryRepository) FindByID(ctx context.Context, id string) (*model.Lib
 	return &l, nil
 }
 
-// Delete removes a library and (soft) cascades to its media via repository
-// callers; we do not run CASCADE here to keep this method narrow.
+// Delete 物理删除媒体库。
 func (r *LibraryRepository) Delete(ctx context.Context, id string) error {
-	return r.db.WithContext(ctx).Delete(&model.Library{}, "id = ?", id).Error
+	return r.db.WithContext(ctx).Unscoped().Delete(&model.Library{}, "id = ?", id).Error
 }
 
 func (r *LibraryRepository) ListRoots(ctx context.Context, libraryID string) ([]model.LibraryRoot, error) {
@@ -149,7 +175,7 @@ func (r *LibraryRepository) DeleteRoot(ctx context.Context, libraryID, rootID st
 	if !r.hasLibraryRootsTable() {
 		return nil
 	}
-	return r.db.WithContext(ctx).Where("library_id = ?", libraryID).Delete(&model.LibraryRoot{}, "id = ?", rootID).Error
+	return r.db.WithContext(ctx).Unscoped().Where("library_id = ?", libraryID).Delete(&model.LibraryRoot{}, "id = ?", rootID).Error
 }
 
 func (r *LibraryRepository) hasLibraryRootsTable() bool {

internal/repository/media_repository.go

@@ -114,14 +114,43 @@ func (r *MediaRepository) ListByLibrariesFiltered(ctx context.Context, libraryID
 	return items, total, err
 }
 
+type libraryCountRow struct {
+	LibraryID string `gorm:"column:library_id"`
+	Total     int64  `gorm:"column:total"`
+}
+
+// CountByLibraries returns a map of library_id -> total media count for the given library IDs.
+func (r *MediaRepository) CountByLibraries(ctx context.Context, libraryIDs []string, filter MediaQueryFilter) (map[string]int64, error) {
+	out := make(map[string]int64, len(libraryIDs))
+	if len(libraryIDs) == 0 {
+		return out, nil
+	}
+	var rows []libraryCountRow
+	q := r.db.WithContext(ctx).Model(&model.Media{}).
+		Select("library_id, count(*) as total")
+	if len(libraryIDs) == 1 {
+		q = q.Where("library_id = ?", libraryIDs[0])
+	} else {
+		q = q.Where("library_id IN ?", libraryIDs)
+	}
+	q = applyMediaQueryFilter(q, filter)
+	if err := q.Group("library_id").Scan(&rows).Error; err != nil {
+		return nil, err
+	}
+	for _, row := range rows {
+		out[row.LibraryID] = row.Total
+	}
+	return out, nil
+}
+
 // DeleteByLibrary purges all media tied to a library.
 func (r *MediaRepository) DeleteByLibrary(ctx context.Context, libraryID string) error {
-	// FTS 行由 media 表上的触发器同步清理（软删/硬删都覆盖）。
-	return r.db.WithContext(ctx).Where("library_id = ?", libraryID).Delete(&model.Media{}).Error
+	// FTS 行由 media 表上的触发器同步清理（物理删除触发 FTS 清理）。
+	return r.db.WithContext(ctx).Unscoped().Where("library_id = ?", libraryID).Delete(&model.Media{}).Error
 }
 
 func (r *MediaRepository) DeleteByLibraryRoot(ctx context.Context, libraryID, rootID string) error {
-	return r.db.WithContext(ctx).
+	return r.db.WithContext(ctx).Unscoped().
 		Where("library_id = ? AND library_root_id = ?", libraryID, rootID).
 		Delete(&model.Media{}).Error
 }

internal/repository/permission_repository.go

@@ -51,9 +51,9 @@ func (r *PermissionRepository) Upsert(ctx context.Context, p *model.UserPermissi
 	})
 }
 
-// Delete removes a permission record.
+// Delete 物理删除权限记录。
 func (r *PermissionRepository) Delete(ctx context.Context, userID string) error {
 	return withSQLiteBusyRetry(ctx, func() error {
-		return r.db.WithContext(ctx).Where("user_id = ?", userID).Delete(&model.UserPermission{}).Error
+		return r.db.WithContext(ctx).Unscoped().Where("user_id = ?", userID).Delete(&model.UserPermission{}).Error
 	})
 }

internal/repository/play_profile_repo.go

@@ -59,9 +59,9 @@ func (r *PlayProfileRepository) Update(ctx context.Context, id string, patch map
 		Where("id = ?", id).Updates(patch).Error
 }
 
-// Delete soft-deletes a profile.
+// Delete 物理删除播放档案。
 func (r *PlayProfileRepository) Delete(ctx context.Context, id string) error {
-	return r.db.WithContext(ctx).Delete(&model.PlayProfile{}, "id = ?", id).Error
+	return r.db.WithContext(ctx).Unscoped().Delete(&model.PlayProfile{}, "id = ?", id).Error
 }
 
 // ClearDefaultsFor resets is_default for all of a user's profiles.

internal/repository/refresh_token_repository.go

@@ -72,10 +72,10 @@ func (r *RefreshTokenRepository) RevokeOldestActiveByUserID(ctx context.Context,
 	})
 }
 
-// DeleteExpired removes all expired refresh tokens.
+// DeleteExpired 物理清理所有过期的 refresh tokens。
 func (r *RefreshTokenRepository) DeleteExpired(ctx context.Context) error {
 	return withSQLiteBusyRetry(ctx, func() error {
-		return r.db.WithContext(ctx).Where("expires_at < ?", time.Now()).Delete(&model.RefreshToken{}).Error
+		return r.db.WithContext(ctx).Unscoped().Where("expires_at < ?", time.Now()).Delete(&model.RefreshToken{}).Error
 	})
 }
 

internal/repository/repository.go

@@ -31,6 +31,9 @@ type Container struct {
 	StrmSyncRecord *StrmSyncRecordRepository
 	StrmDownload   *StrmDownloadTaskRepository
 	StrmUpload     *StrmUploadTaskRepository
+	StrmDirCache   *StrmDirCacheRepository
+	ScrapeTask     *ScrapeTaskRepository
+	EmbyMount      *EmbyMountRepository
 }
 
 // New 将每个 repository 连接到单个 *gorm.DB。
@@ -58,5 +61,8 @@ func New(db *gorm.DB) *Container {
 		StrmSyncRecord: &StrmSyncRecordRepository{db: db},
 		StrmDownload:   &StrmDownloadTaskRepository{db: db},
 		StrmUpload:     &StrmUploadTaskRepository{db: db},
+		StrmDirCache:   &StrmDirCacheRepository{db: db},
+		ScrapeTask:     &ScrapeTaskRepository{db: db},
+		EmbyMount:      &EmbyMountRepository{db: db},
 	}
 }

internal/repository/scrape_task_repository.go

@@ -0,0 +1,274 @@
+package repository
+
+import (
+	"context"
+	"errors"
+	"strings"
+	"sync"
+	"time"
+
+	"gorm.io/gorm"
+
+	"github.com/ShukeBta/MMTL/internal/model"
+)
+
+var scrapeClaimMu sync.Mutex
+
+// ScrapeTaskRepository persists model.ScrapeTask.
+type ScrapeTaskRepository struct{ db *gorm.DB }
+
+func (r *ScrapeTaskRepository) Create(ctx context.Context, t *model.ScrapeTask) error {
+	return withSQLiteBusyRetry(ctx, func() error {
+		return r.db.WithContext(ctx).Create(t).Error
+	})
+}
+
+func (r *ScrapeTaskRepository) CreateBatch(ctx context.Context, tasks []model.ScrapeTask) error {
+	if len(tasks) == 0 {
+		return nil
+	}
+	return withSQLiteBusyRetry(ctx, func() error {
+		return r.db.WithContext(ctx).CreateInBatches(tasks, 100).Error
+	})
+}
+
+func (r *ScrapeTaskRepository) FindByID(ctx context.Context, id string) (*model.ScrapeTask, error) {
+	var t model.ScrapeTask
+	err := r.db.WithContext(ctx).Where("id = ?", id).First(&t).Error
+	if errors.Is(err, gorm.ErrRecordNotFound) {
+		return nil, nil
+	}
+	return &t, err
+}
+
+func (r *ScrapeTaskRepository) FindActiveByMediaID(ctx context.Context, mediaID string) (*model.ScrapeTask, error) {
+	var t model.ScrapeTask
+	err := r.db.WithContext(ctx).
+		Where("media_id = ? AND status IN ?", mediaID, []string{model.ScrapeTaskPending, model.ScrapeTaskRunning}).
+		First(&t).Error
+	if errors.Is(err, gorm.ErrRecordNotFound) {
+		return nil, nil
+	}
+	return &t, err
+}
+
+func (r *ScrapeTaskRepository) List(ctx context.Context, status string, page, pageSize int) ([]model.ScrapeTask, int64, error) {
+	if page < 1 {
+		page = 1
+	}
+	if pageSize < 1 || pageSize > 200 {
+		pageSize = 50
+	}
+	q := r.db.WithContext(ctx).Model(&model.ScrapeTask{})
+	if strings.TrimSpace(status) != "" && status != "all" {
+		q = q.Where("status = ?", strings.TrimSpace(status))
+	}
+	var total int64
+	if err := q.Count(&total).Error; err != nil {
+		return nil, 0, err
+	}
+	var rows []model.ScrapeTask
+	err := q.Order("created_at desc").
+		Offset((page - 1) * pageSize).
+		Limit(pageSize).
+		Find(&rows).Error
+	return rows, total, err
+}
+
+func (r *ScrapeTaskRepository) CountByStatus(ctx context.Context) (map[string]int64, error) {
+	var rows []struct {
+		Status string
+		Count  int64
+	}
+	err := r.db.WithContext(ctx).Model(&model.ScrapeTask{}).
+		Select("status, count(*) as count").
+		Group("status").Scan(&rows).Error
+	if err != nil {
+		return nil, err
+	}
+	out := map[string]int64{}
+	for _, row := range rows {
+		out[row.Status] = row.Count
+	}
+	return out, nil
+}
+
+// ClaimPending picks pending scrape tasks and marks them running.
+func (r *ScrapeTaskRepository) ClaimPending(ctx context.Context, limit int) ([]model.ScrapeTask, error) {
+	scrapeClaimMu.Lock()
+	defer scrapeClaimMu.Unlock()
+
+	var rows []model.ScrapeTask
+	err := withSQLiteBusyRetry(ctx, func() error {
+		return r.db.WithContext(ctx).Transaction(func(tx *gorm.DB) error {
+			if err := tx.Where("status = ?", model.ScrapeTaskPending).
+				Order("created_at asc").Limit(limit).Find(&rows).Error; err != nil {
+				return err
+			}
+			if len(rows) == 0 {
+				return nil
+			}
+			ids := make([]string, 0, len(rows))
+			now := time.Now()
+			for i := range rows {
+				ids = append(ids, rows[i].ID)
+				rows[i].Status = model.ScrapeTaskRunning
+				rows[i].StartedAt = &now
+			}
+			return tx.Model(&model.ScrapeTask{}).Where("id IN ?", ids).
+				Updates(map[string]any{"status": model.ScrapeTaskRunning, "started_at": now}).Error
+		})
+	})
+	if err != nil {
+		return nil, err
+	}
+	return rows, nil
+}
+
+func (r *ScrapeTaskRepository) Update(ctx context.Context, t *model.ScrapeTask) error {
+	return withSQLiteBusyRetry(ctx, func() error {
+		return r.db.WithContext(ctx).Model(&model.ScrapeTask{}).Where("id = ?", t.ID).Updates(map[string]any{
+			"status":        t.Status,
+			"error":         t.Error,
+			"provider":      t.Provider,
+			"matched_title": t.MatchedTitle,
+			"matched_year":  t.MatchedYear,
+			"poster_url":    t.PosterURL,
+			"backdrop_url":  t.BackdropURL,
+			"retry_count":   t.RetryCount,
+			"started_at":    t.StartedAt,
+			"finished_at":   t.FinishedAt,
+			"updated_at":    time.Now(),
+		}).Error
+	})
+}
+
+func (r *ScrapeTaskRepository) Delete(ctx context.Context, id string) error {
+	return withSQLiteBusyRetry(ctx, func() error {
+		return r.db.WithContext(ctx).Unscoped().Where("id = ?", id).Delete(&model.ScrapeTask{}).Error
+	})
+}
+
+func (r *ScrapeTaskRepository) DeleteBatch(ctx context.Context, ids []string) (int64, error) {
+	if len(ids) == 0 {
+		return 0, nil
+	}
+	var count int64
+	err := withSQLiteBusyRetry(ctx, func() error {
+		res := r.db.WithContext(ctx).Unscoped().Where("id IN ?", ids).Delete(&model.ScrapeTask{})
+		count = res.RowsAffected
+		return res.Error
+	})
+	return count, err
+}
+
+func (r *ScrapeTaskRepository) RetryBatch(ctx context.Context, ids []string) (int64, error) {
+	if len(ids) == 0 {
+		return 0, nil
+	}
+	var count int64
+	err := withSQLiteBusyRetry(ctx, func() error {
+		res := r.db.WithContext(ctx).Model(&model.ScrapeTask{}).
+			Where("id IN ? AND status IN ?", ids, []string{model.ScrapeTaskFailed, model.ScrapeTaskCanceled}).
+			Updates(map[string]any{
+				"status":      model.ScrapeTaskPending,
+				"error":       "",
+				"retry_count": 0,
+				"started_at":  nil,
+				"finished_at": nil,
+				"updated_at":  time.Now(),
+			})
+		count = res.RowsAffected
+		return res.Error
+	})
+	return count, err
+}
+
+func (r *ScrapeTaskRepository) CancelBatch(ctx context.Context, ids []string) (int64, error) {
+	if len(ids) == 0 {
+		return 0, nil
+	}
+	now := time.Now()
+	var count int64
+	err := withSQLiteBusyRetry(ctx, func() error {
+		res := r.db.WithContext(ctx).Model(&model.ScrapeTask{}).
+			Where("id IN ? AND status IN ?", ids, []string{model.ScrapeTaskPending, model.ScrapeTaskRunning}).
+			Updates(map[string]any{
+				"status":      model.ScrapeTaskCanceled,
+				"error":       "已批量取消",
+				"finished_at": now,
+				"updated_at":  now,
+			})
+		count = res.RowsAffected
+		return res.Error
+	})
+	return count, err
+}
+
+func (r *ScrapeTaskRepository) ClearDone(ctx context.Context) (int64, error) {
+	var count int64
+	err := withSQLiteBusyRetry(ctx, func() error {
+		res := r.db.WithContext(ctx).Unscoped().Where("status = ?", model.ScrapeTaskDone).Delete(&model.ScrapeTask{})
+		count = res.RowsAffected
+		return res.Error
+	})
+	return count, err
+}
+
+func (r *ScrapeTaskRepository) ClearFinished(ctx context.Context) (int64, error) {
+	var count int64
+	err := withSQLiteBusyRetry(ctx, func() error {
+		res := r.db.WithContext(ctx).Unscoped().Where("status IN ?", []string{model.ScrapeTaskDone, model.ScrapeTaskFailed, model.ScrapeTaskCanceled}).
+			Delete(&model.ScrapeTask{})
+		count = res.RowsAffected
+		return res.Error
+	})
+	return count, err
+}
+
+func (r *ScrapeTaskRepository) ClearCanceled(ctx context.Context) (int64, error) {
+	var count int64
+	err := withSQLiteBusyRetry(ctx, func() error {
+		res := r.db.WithContext(ctx).Unscoped().Where("status = ?", model.ScrapeTaskCanceled).Delete(&model.ScrapeTask{})
+		count = res.RowsAffected
+		return res.Error
+	})
+	return count, err
+}
+
+func (r *ScrapeTaskRepository) RetryAllFailed(ctx context.Context) (int64, error) {
+	var count int64
+	err := withSQLiteBusyRetry(ctx, func() error {
+		res := r.db.WithContext(ctx).Model(&model.ScrapeTask{}).
+			Where("status = ?", model.ScrapeTaskFailed).
+			Updates(map[string]any{
+				"status":      model.ScrapeTaskPending,
+				"error":       "",
+				"retry_count": 0,
+				"started_at":  nil,
+				"finished_at": nil,
+				"updated_at":  time.Now(),
+			})
+		count = res.RowsAffected
+		return res.Error
+	})
+	return count, err
+}
+
+func (r *ScrapeTaskRepository) CancelPending(ctx context.Context) (int64, error) {
+	now := time.Now()
+	var count int64
+	err := withSQLiteBusyRetry(ctx, func() error {
+		res := r.db.WithContext(ctx).Model(&model.ScrapeTask{}).
+			Where("status IN ?", []string{model.ScrapeTaskPending, model.ScrapeTaskRunning}).
+			Updates(map[string]any{
+				"status":      model.ScrapeTaskCanceled,
+				"error":       "已批量取消",
+				"finished_at": now,
+				"updated_at":  now,
+			})
+		count = res.RowsAffected
+		return res.Error
+	})
+	return count, err
+}

internal/repository/setting_repository.go

@@ -29,9 +29,9 @@ func (r *SettingRepository) Set(ctx context.Context, key, value string) error {
 	return r.db.WithContext(ctx).Save(&s).Error
 }
 
-// Delete removes a setting key.
+// Delete 物理删除设置键。
 func (r *SettingRepository) Delete(ctx context.Context, key string) error {
-	return r.db.WithContext(ctx).Where("key = ?", key).Delete(&model.Setting{}).Error
+	return r.db.WithContext(ctx).Unscoped().Where("key = ?", key).Delete(&model.Setting{}).Error
 }
 
 // All returns every key/value pair (used by the admin UI).

internal/repository/storage_config_repo.go

@@ -66,10 +66,9 @@ func (r *StorageConfigRepository) Upsert(ctx context.Context, c *model.StorageCo
 	}).Error
 }
 
-
-// Delete removes a storage config by ID.
+// Delete 物理删除存储配置。
 func (r *StorageConfigRepository) Delete(ctx context.Context, id string) error {
-	return r.db.WithContext(ctx).Where("id = ?", id).Delete(&model.StorageConfig{}).Error
+	return r.db.WithContext(ctx).Unscoped().Where("id = ?", id).Delete(&model.StorageConfig{}).Error
 }
 
 // FindByID returns a storage config by ID.

internal/repository/strm_repository.go

@@ -3,6 +3,7 @@ package repository
 import (
 	"context"
 	"errors"
+	"sync"
 	"time"
 
 	"gorm.io/gorm"
@@ -10,13 +11,17 @@ import (
 	"github.com/ShukeBta/MMTL/internal/model"
 )
 
+var strmClaimMu sync.Mutex
+
 // ─── StrmAccount ───────────────────────────────────────────────────────────────
 
 // StrmAccountRepository persists model.StrmAccount.
 type StrmAccountRepository struct{ db *gorm.DB }
 
 func (r *StrmAccountRepository) Create(ctx context.Context, a *model.StrmAccount) error {
-	return r.db.WithContext(ctx).Create(a).Error
+	return withSQLiteBusyRetry(ctx, func() error {
+		return r.db.WithContext(ctx).Create(a).Error
+	})
 }
 
 func (r *StrmAccountRepository) FindByID(ctx context.Context, id string) (*model.StrmAccount, error) {
@@ -38,20 +43,24 @@ func (r *StrmAccountRepository) List(ctx context.Context) ([]model.StrmAccount,
 }
 
 func (r *StrmAccountRepository) Update(ctx context.Context, a *model.StrmAccount) error {
-	return r.db.WithContext(ctx).Model(&model.StrmAccount{}).Where("id = ?", a.ID).Updates(map[string]any{
-		"name":             a.Name,
-		"provider":         a.Provider,
-		"config":           a.Config,
-		"enabled":          a.Enabled,
-		"last_test_at":     a.LastTestAt,
-		"last_test_result": a.LastTestResult,
-		"last_test_ok":     a.LastTestOK,
-		"updated_at":       time.Now(),
-	}).Error
+	return withSQLiteBusyRetry(ctx, func() error {
+		return r.db.WithContext(ctx).Model(&model.StrmAccount{}).Where("id = ?", a.ID).Updates(map[string]any{
+			"name":             a.Name,
+			"provider":         a.Provider,
+			"config":           a.Config,
+			"enabled":          a.Enabled,
+			"last_test_at":     a.LastTestAt,
+			"last_test_result": a.LastTestResult,
+			"last_test_ok":     a.LastTestOK,
+			"updated_at":       time.Now(),
+		}).Error
+	})
 }
 
 func (r *StrmAccountRepository) Delete(ctx context.Context, id string) error {
-	return r.db.WithContext(ctx).Where("id = ?", id).Delete(&model.StrmAccount{}).Error
+	return withSQLiteBusyRetry(ctx, func() error {
+		return r.db.WithContext(ctx).Unscoped().Where("id = ?", id).Delete(&model.StrmAccount{}).Error
+	})
 }
 
 // ─── StrmSyncPath ──────────────────────────────────────────────────────────────
@@ -60,7 +69,9 @@ func (r *StrmAccountRepository) Delete(ctx context.Context, id string) error {
 type StrmSyncPathRepository struct{ db *gorm.DB }
 
 func (r *StrmSyncPathRepository) Create(ctx context.Context, p *model.StrmSyncPath) error {
-	return r.db.WithContext(ctx).Create(p).Error
+	return withSQLiteBusyRetry(ctx, func() error {
+		return r.db.WithContext(ctx).Create(p).Error
+	})
 }
 
 func (r *StrmSyncPathRepository) FindByID(ctx context.Context, id string) (*model.StrmSyncPath, error) {
@@ -82,33 +93,38 @@ func (r *StrmSyncPathRepository) List(ctx context.Context) ([]model.StrmSyncPath
 }
 
 func (r *StrmSyncPathRepository) Update(ctx context.Context, p *model.StrmSyncPath) error {
-	return r.db.WithContext(ctx).Model(&model.StrmSyncPath{}).Where("id = ?", p.ID).Updates(map[string]any{
-		"name":              p.Name,
-		"account_id":        p.AccountID,
-		"provider":          p.Provider,
-		"remote_path":       p.RemotePath,
-		"local_path":        p.LocalPath,
-		"strm_base_url":     p.StrmBaseURL,
-		"video_ext":         p.VideoExt,
-		"meta_ext":          p.MetaExt,
-		"exclude_name":      p.ExcludeName,
-		"min_video_size_mb": p.MinVideoSizeMB,
-		"add_path":          p.AddPath,
-		"download_meta":     p.DownloadMeta,
-		"upload_meta":       p.UploadMeta,
-		"delete_dir":        p.DeleteDir,
-		"cron":              p.Cron,
-		"enable_cron":       p.EnableCron,
-		"enabled":           p.Enabled,
-		"last_sync_at":      p.LastSyncAt,
-		"last_sync_status":  p.LastSyncStatus,
-		"last_sync_message": p.LastSyncMessage,
-		"updated_at":        time.Now(),
-	}).Error
+	return withSQLiteBusyRetry(ctx, func() error {
+		return r.db.WithContext(ctx).Model(&model.StrmSyncPath{}).Where("id = ?", p.ID).Updates(map[string]any{
+			"name":              p.Name,
+			"account_id":        p.AccountID,
+			"provider":          p.Provider,
+			"remote_path":       p.RemotePath,
+			"local_path":        p.LocalPath,
+			"strm_base_url":     p.StrmBaseURL,
+			"video_ext":         p.VideoExt,
+			"meta_ext":          p.MetaExt,
+			"exclude_name":      p.ExcludeName,
+			"min_video_size_mb": p.MinVideoSizeMB,
+			"add_path":          p.AddPath,
+			"download_meta":     p.DownloadMeta,
+			"upload_meta":       p.UploadMeta,
+			"delete_dir":        p.DeleteDir,
+			"cron":              p.Cron,
+			"enable_cron":       p.EnableCron,
+			"sync_mode":         p.SyncMode,
+			"enabled":           p.Enabled,
+			"last_sync_at":      p.LastSyncAt,
+			"last_sync_status":  p.LastSyncStatus,
+			"last_sync_message": p.LastSyncMessage,
+			"updated_at":        time.Now(),
+		}).Error
+	})
 }
 
 func (r *StrmSyncPathRepository) Delete(ctx context.Context, id string) error {
-	return r.db.WithContext(ctx).Where("id = ?", id).Delete(&model.StrmSyncPath{}).Error
+	return withSQLiteBusyRetry(ctx, func() error {
+		return r.db.WithContext(ctx).Unscoped().Where("id = ?", id).Delete(&model.StrmSyncPath{}).Error
+	})
 }
 
 // ─── StrmSyncRecord ────────────────────────────────────────────────────────────
@@ -117,23 +133,28 @@ func (r *StrmSyncPathRepository) Delete(ctx context.Context, id string) error {
 type StrmSyncRecordRepository struct{ db *gorm.DB }
 
 func (r *StrmSyncRecordRepository) Create(ctx context.Context, rec *model.StrmSyncRecord) error {
-	return r.db.WithContext(ctx).Create(rec).Error
+	return withSQLiteBusyRetry(ctx, func() error {
+		return r.db.WithContext(ctx).Create(rec).Error
+	})
 }
 
 func (r *StrmSyncRecordRepository) Update(ctx context.Context, rec *model.StrmSyncRecord) error {
-	return r.db.WithContext(ctx).Model(&model.StrmSyncRecord{}).Where("id = ?", rec.ID).Updates(map[string]any{
-		"status":      rec.Status,
-		"total":       rec.Total,
-		"new_strm":    rec.NewStrm,
-		"new_meta":    rec.NewMeta,
-		"uploaded":    rec.Uploaded,
-		"pruned":      rec.Pruned,
-		"skipped":     rec.Skipped,
-		"message":     rec.Message,
-		"started_at":  rec.StartedAt,
-		"finished_at": rec.FinishedAt,
-		"updated_at":  time.Now(),
-	}).Error
+	return withSQLiteBusyRetry(ctx, func() error {
+		return r.db.WithContext(ctx).Model(&model.StrmSyncRecord{}).Where("id = ?", rec.ID).Updates(map[string]any{
+			"sync_type":   rec.SyncType,
+			"status":      rec.Status,
+			"total":       rec.Total,
+			"new_strm":    rec.NewStrm,
+			"new_meta":    rec.NewMeta,
+			"uploaded":    rec.Uploaded,
+			"pruned":      rec.Pruned,
+			"skipped":     rec.Skipped,
+			"message":     rec.Message,
+			"started_at":  rec.StartedAt,
+			"finished_at": rec.FinishedAt,
+			"updated_at":  time.Now(),
+		}).Error
+	})
 }
 
 func (r *StrmSyncRecordRepository) List(ctx context.Context, syncPathID string, limit int) ([]model.StrmSyncRecord, error) {
@@ -149,13 +170,45 @@ func (r *StrmSyncRecordRepository) List(ctx context.Context, syncPathID string,
 	return rows, err
 }
 
+// Delete 删除单条同步记录（物理删除）。
+func (r *StrmSyncRecordRepository) Delete(ctx context.Context, id string) error {
+	return withSQLiteBusyRetry(ctx, func() error {
+		return r.db.WithContext(ctx).Unscoped().Where("id = ?", id).Delete(&model.StrmSyncRecord{}).Error
+	})
+}
+
+// DeleteBySyncPathID 删除某同步目录下的全部同步记录（删除同步目录时级联清理）。
+func (r *StrmSyncRecordRepository) DeleteBySyncPathID(ctx context.Context, syncPathID string) (int64, error) {
+	var count int64
+	err := withSQLiteBusyRetry(ctx, func() error {
+		res := r.db.WithContext(ctx).Unscoped().Where("sync_path_id = ?", syncPathID).Delete(&model.StrmSyncRecord{})
+		count = res.RowsAffected
+		return res.Error
+	})
+	return count, err
+}
+
 // ─── StrmDownloadTask ──────────────────────────────────────────────────────────
 
 // StrmDownloadTaskRepository persists model.StrmDownloadTask.
 type StrmDownloadTaskRepository struct{ db *gorm.DB }
 
 func (r *StrmDownloadTaskRepository) Create(ctx context.Context, t *model.StrmDownloadTask) error {
-	return r.db.WithContext(ctx).Create(t).Error
+	return withSQLiteBusyRetry(ctx, func() error {
+		return r.db.WithContext(ctx).Create(t).Error
+	})
+}
+
+func (r *StrmDownloadTaskRepository) CreateInBatches(ctx context.Context, tasks []*model.StrmDownloadTask, batchSize int) error {
+	if len(tasks) == 0 {
+		return nil
+	}
+	if batchSize <= 0 {
+		batchSize = 100
+	}
+	return withSQLiteBusyRetry(ctx, func() error {
+		return r.db.WithContext(ctx).CreateInBatches(tasks, batchSize).Error
+	})
 }
 
 func (r *StrmDownloadTaskRepository) FindByID(ctx context.Context, id string) (*model.StrmDownloadTask, error) {
@@ -205,24 +258,29 @@ func (r *StrmDownloadTaskRepository) CountByStatus(ctx context.Context) (map[str
 // ClaimPendingDownload picks the oldest pending task and marks it running.
 // Returns (nil, nil) when the queue is empty.
 func (r *StrmDownloadTaskRepository) ClaimPendingDownload(ctx context.Context, limit int) ([]model.StrmDownloadTask, error) {
+	strmClaimMu.Lock()
+	defer strmClaimMu.Unlock()
+
 	var rows []model.StrmDownloadTask
-	err := r.db.WithContext(ctx).Transaction(func(tx *gorm.DB) error {
-		if err := tx.Where("status = ? AND (next_try_at IS NULL OR next_try_at <= ?)", model.StrmTaskPending, time.Now()).
-			Order("created_at asc").Limit(limit).Find(&rows).Error; err != nil {
-			return err
-		}
-		if len(rows) == 0 {
-			return nil
-		}
-		ids := make([]string, 0, len(rows))
-		now := time.Now()
-		for i := range rows {
-			ids = append(ids, rows[i].ID)
-			rows[i].Status = model.StrmTaskRunning
-			rows[i].StartedAt = &now
-		}
-		return tx.Model(&model.StrmDownloadTask{}).Where("id IN ?", ids).
-			Updates(map[string]any{"status": model.StrmTaskRunning, "started_at": now}).Error
+	err := withSQLiteBusyRetry(ctx, func() error {
+		return r.db.WithContext(ctx).Transaction(func(tx *gorm.DB) error {
+			if err := tx.Where("status = ? AND (next_try_at IS NULL OR next_try_at <= ?)", model.StrmTaskPending, time.Now()).
+				Order("created_at asc").Limit(limit).Find(&rows).Error; err != nil {
+				return err
+			}
+			if len(rows) == 0 {
+				return nil
+			}
+			ids := make([]string, 0, len(rows))
+			now := time.Now()
+			for i := range rows {
+				ids = append(ids, rows[i].ID)
+				rows[i].Status = model.StrmTaskRunning
+				rows[i].StartedAt = &now
+			}
+			return tx.Model(&model.StrmDownloadTask{}).Where("id IN ?", ids).
+				Updates(map[string]any{"status": model.StrmTaskRunning, "started_at": now}).Error
+		})
 	})
 	if err != nil {
 		return nil, err
@@ -231,62 +289,157 @@ func (r *StrmDownloadTaskRepository) ClaimPendingDownload(ctx context.Context, l
 }
 
 func (r *StrmDownloadTaskRepository) Update(ctx context.Context, t *model.StrmDownloadTask) error {
-	return r.db.WithContext(ctx).Model(&model.StrmDownloadTask{}).Where("id = ?", t.ID).Updates(map[string]any{
-		"status":      t.Status,
-		"error":       t.Error,
-		"retry_count": t.RetryCount,
-		"next_try_at": t.NextTryAt,
-		"started_at":  t.StartedAt,
-		"finished_at": t.FinishedAt,
-		"updated_at":  time.Now(),
-	}).Error
+	return withSQLiteBusyRetry(ctx, func() error {
+		return r.db.WithContext(ctx).Model(&model.StrmDownloadTask{}).Where("id = ?", t.ID).Updates(map[string]any{
+			"status":      t.Status,
+			"error":       t.Error,
+			"retry_count": t.RetryCount,
+			"next_try_at": t.NextTryAt,
+			"started_at":  t.StartedAt,
+			"finished_at": t.FinishedAt,
+			"updated_at":  time.Now(),
+		}).Error
+	})
 }
 
 func (r *StrmDownloadTaskRepository) Delete(ctx context.Context, id string) error {
-	return r.db.WithContext(ctx).Where("id = ?", id).Delete(&model.StrmDownloadTask{}).Error
+	return withSQLiteBusyRetry(ctx, func() error {
+		return r.db.WithContext(ctx).Unscoped().Where("id = ?", id).Delete(&model.StrmDownloadTask{}).Error
+	})
+}
+
+// DeleteBatch 批量删除指定 ID 的下载任务。
+func (r *StrmDownloadTaskRepository) DeleteBatch(ctx context.Context, ids []string) (int64, error) {
+	if len(ids) == 0 {
+		return 0, nil
+	}
+	var count int64
+	err := withSQLiteBusyRetry(ctx, func() error {
+		res := r.db.WithContext(ctx).Unscoped().Where("id IN ?", ids).Delete(&model.StrmDownloadTask{})
+		count = res.RowsAffected
+		return res.Error
+	})
+	return count, err
+}
+
+// RetryBatch 批量重试指定 ID 的失败/已取消下载任务。
+func (r *StrmDownloadTaskRepository) RetryBatch(ctx context.Context, ids []string) (int64, error) {
+	if len(ids) == 0 {
+		return 0, nil
+	}
+	var count int64
+	err := withSQLiteBusyRetry(ctx, func() error {
+		res := r.db.WithContext(ctx).Model(&model.StrmDownloadTask{}).
+			Where("id IN ? AND status IN ?", ids, []string{model.StrmTaskFailed, model.StrmTaskCanceled}).
+			Updates(map[string]any{
+				"status":      model.StrmTaskPending,
+				"error":       "",
+				"retry_count": 0,
+				"next_try_at": nil,
+				"started_at":  nil,
+				"finished_at": nil,
+				"updated_at":  time.Now(),
+			})
+		count = res.RowsAffected
+		return res.Error
+	})
+	return count, err
+}
+
+// CancelBatch 批量取消指定 ID 的排队/进行中下载任务。
+func (r *StrmDownloadTaskRepository) CancelBatch(ctx context.Context, ids []string) (int64, error) {
+	if len(ids) == 0 {
+		return 0, nil
+	}
+	now := time.Now()
+	var count int64
+	err := withSQLiteBusyRetry(ctx, func() error {
+		res := r.db.WithContext(ctx).Model(&model.StrmDownloadTask{}).
+			Where("id IN ? AND status IN ?", ids, []string{model.StrmTaskPending, model.StrmTaskRunning}).
+			Updates(map[string]any{
+				"status":      model.StrmTaskCanceled,
+				"error":       "已批量取消",
+				"finished_at": now,
+				"updated_at":  now,
+			})
+		count = res.RowsAffected
+		return res.Error
+	})
+	return count, err
 }
 
 // ClearDone 清空全部已完成下载任务。
 func (r *StrmDownloadTaskRepository) ClearDone(ctx context.Context) (int64, error) {
-	res := r.db.WithContext(ctx).Where("status = ?", model.StrmTaskDone).Delete(&model.StrmDownloadTask{})
-	return res.RowsAffected, res.Error
+	var count int64
+	err := withSQLiteBusyRetry(ctx, func() error {
+		res := r.db.WithContext(ctx).Unscoped().Where("status = ?", model.StrmTaskDone).Delete(&model.StrmDownloadTask{})
+		count = res.RowsAffected
+		return res.Error
+	})
+	return count, err
 }
 
 // ClearFinished 清空全部已完成与失败下载任务。
 func (r *StrmDownloadTaskRepository) ClearFinished(ctx context.Context) (int64, error) {
-	res := r.db.WithContext(ctx).Where("status IN ?", []string{model.StrmTaskDone, model.StrmTaskFailed}).
-		Delete(&model.StrmDownloadTask{})
-	return res.RowsAffected, res.Error
+	var count int64
+	err := withSQLiteBusyRetry(ctx, func() error {
+		res := r.db.WithContext(ctx).Unscoped().Where("status IN ?", []string{model.StrmTaskDone, model.StrmTaskFailed, model.StrmTaskCanceled}).
+			Delete(&model.StrmDownloadTask{})
+		count = res.RowsAffected
+		return res.Error
+	})
+	return count, err
+}
+
+// ClearCanceled 清空全部已取消下载任务。
+func (r *StrmDownloadTaskRepository) ClearCanceled(ctx context.Context) (int64, error) {
+	var count int64
+	err := withSQLiteBusyRetry(ctx, func() error {
+		res := r.db.WithContext(ctx).Unscoped().Where("status = ?", model.StrmTaskCanceled).Delete(&model.StrmDownloadTask{})
+		count = res.RowsAffected
+		return res.Error
+	})
+	return count, err
 }
 
 // RetryAllFailed 把所有失败任务重置回待处理，清空错误与重试计数。
 func (r *StrmDownloadTaskRepository) RetryAllFailed(ctx context.Context) (int64, error) {
-	res := r.db.WithContext(ctx).Model(&model.StrmDownloadTask{}).
-		Where("status = ?", model.StrmTaskFailed).
-		Updates(map[string]any{
-			"status":      model.StrmTaskPending,
-			"error":       "",
-			"retry_count": 0,
-			"next_try_at": nil,
-			"started_at":  nil,
-			"finished_at": nil,
-			"updated_at":  time.Now(),
-		})
-	return res.RowsAffected, res.Error
+	var count int64
+	err := withSQLiteBusyRetry(ctx, func() error {
+		res := r.db.WithContext(ctx).Model(&model.StrmDownloadTask{}).
+			Where("status = ?", model.StrmTaskFailed).
+			Updates(map[string]any{
+				"status":      model.StrmTaskPending,
+				"error":       "",
+				"retry_count": 0,
+				"next_try_at": nil,
+				"started_at":  nil,
+				"finished_at": nil,
+				"updated_at":  time.Now(),
+			})
+		count = res.RowsAffected
+		return res.Error
+	})
+	return count, err
 }
 
-// CancelPending 批量取消所有排队中的任务。
+// CancelPending 批量取消所有排队中和进行中的任务。
 func (r *StrmDownloadTaskRepository) CancelPending(ctx context.Context) (int64, error) {
 	now := time.Now()
-	res := r.db.WithContext(ctx).Model(&model.StrmDownloadTask{}).
-		Where("status = ?", model.StrmTaskPending).
-		Updates(map[string]any{
-			"status":      model.StrmTaskCanceled,
-			"error":       "已批量取消",
-			"finished_at": now,
-			"updated_at":  now,
-		})
-	return res.RowsAffected, res.Error
+	var count int64
+	err := withSQLiteBusyRetry(ctx, func() error {
+		res := r.db.WithContext(ctx).Model(&model.StrmDownloadTask{}).
+			Where("status IN ?", []string{model.StrmTaskPending, model.StrmTaskRunning}).
+			Updates(map[string]any{
+				"status":      model.StrmTaskCanceled,
+				"error":       "已批量取消",
+				"finished_at": now,
+				"updated_at":  now,
+			})
+		count = res.RowsAffected
+		return res.Error
+	})
+	return count, err
 }
 
 // CountActive 统计某同步目录下目标仍在排队/进行的任务数（用于去重）。
@@ -299,10 +452,28 @@ func (r *StrmDownloadTaskRepository) CountActive(ctx context.Context, syncPathID
 	return count
 }
 
+// GetActiveLocalPathMap 一次性获取某同步目录下正在排队或执行中的 local_path 集合，供同步时 O(1) 内存去重。
+func (r *StrmDownloadTaskRepository) GetActiveLocalPathMap(ctx context.Context, syncPathID string) (map[string]bool, error) {
+	var paths []string
+	err := r.db.WithContext(ctx).Model(&model.StrmDownloadTask{}).
+		Where("sync_path_id = ? AND status IN ?", syncPathID, []string{model.StrmTaskPending, model.StrmTaskRunning}).
+		Pluck("local_path", &paths).Error
+	if err != nil {
+		return nil, err
+	}
+	out := make(map[string]bool, len(paths))
+	for _, p := range paths {
+		out[p] = true
+	}
+	return out, nil
+}
+
 func (r *StrmDownloadTaskRepository) DeleteFinishedOlderThan(ctx context.Context, before time.Time) error {
-	return r.db.WithContext(ctx).Where("status IN ? AND finished_at < ?",
-		[]string{model.StrmTaskDone, model.StrmTaskFailed, model.StrmTaskCanceled}, before).
-		Delete(&model.StrmDownloadTask{}).Error
+	return withSQLiteBusyRetry(ctx, func() error {
+		return r.db.WithContext(ctx).Unscoped().Where("status IN ? AND finished_at < ?",
+			[]string{model.StrmTaskDone, model.StrmTaskFailed, model.StrmTaskCanceled}, before).
+			Delete(&model.StrmDownloadTask{}).Error
+	})
 }
 
 // ─── StrmUploadTask ────────────────────────────────────────────────────────────
@@ -311,7 +482,21 @@ func (r *StrmDownloadTaskRepository) DeleteFinishedOlderThan(ctx context.Context
 type StrmUploadTaskRepository struct{ db *gorm.DB }
 
 func (r *StrmUploadTaskRepository) Create(ctx context.Context, t *model.StrmUploadTask) error {
-	return r.db.WithContext(ctx).Create(t).Error
+	return withSQLiteBusyRetry(ctx, func() error {
+		return r.db.WithContext(ctx).Create(t).Error
+	})
+}
+
+func (r *StrmUploadTaskRepository) CreateInBatches(ctx context.Context, tasks []*model.StrmUploadTask, batchSize int) error {
+	if len(tasks) == 0 {
+		return nil
+	}
+	if batchSize <= 0 {
+		batchSize = 100
+	}
+	return withSQLiteBusyRetry(ctx, func() error {
+		return r.db.WithContext(ctx).CreateInBatches(tasks, batchSize).Error
+	})
 }
 
 func (r *StrmUploadTaskRepository) FindByID(ctx context.Context, id string) (*model.StrmUploadTask, error) {
@@ -380,24 +565,29 @@ func (r *StrmUploadTaskRepository) CountByStatus(ctx context.Context) (map[strin
 // ClaimPendingUpload picks the oldest pending task and marks it running.
 // Returns (nil, nil) when the queue is empty.
 func (r *StrmUploadTaskRepository) ClaimPendingUpload(ctx context.Context, limit int) ([]model.StrmUploadTask, error) {
+	strmClaimMu.Lock()
+	defer strmClaimMu.Unlock()
+
 	var rows []model.StrmUploadTask
-	err := r.db.WithContext(ctx).Transaction(func(tx *gorm.DB) error {
-		if err := tx.Where("status = ? AND (next_try_at IS NULL OR next_try_at <= ?)", model.StrmTaskPending, time.Now()).
-			Order("created_at asc").Limit(limit).Find(&rows).Error; err != nil {
-			return err
-		}
-		if len(rows) == 0 {
-			return nil
-		}
-		ids := make([]string, 0, len(rows))
-		now := time.Now()
-		for i := range rows {
-			ids = append(ids, rows[i].ID)
-			rows[i].Status = model.StrmTaskRunning
-			rows[i].StartedAt = &now
-		}
-		return tx.Model(&model.StrmUploadTask{}).Where("id IN ?", ids).
-			Updates(map[string]any{"status": model.StrmTaskRunning, "started_at": now}).Error
+	err := withSQLiteBusyRetry(ctx, func() error {
+		return r.db.WithContext(ctx).Transaction(func(tx *gorm.DB) error {
+			if err := tx.Where("status = ? AND (next_try_at IS NULL OR next_try_at <= ?)", model.StrmTaskPending, time.Now()).
+				Order("created_at asc").Limit(limit).Find(&rows).Error; err != nil {
+				return err
+			}
+			if len(rows) == 0 {
+				return nil
+			}
+			ids := make([]string, 0, len(rows))
+			now := time.Now()
+			for i := range rows {
+				ids = append(ids, rows[i].ID)
+				rows[i].Status = model.StrmTaskRunning
+				rows[i].StartedAt = &now
+			}
+			return tx.Model(&model.StrmUploadTask{}).Where("id IN ?", ids).
+				Updates(map[string]any{"status": model.StrmTaskRunning, "started_at": now}).Error
+		})
 	})
 	if err != nil {
 		return nil, err
@@ -406,19 +596,157 @@ func (r *StrmUploadTaskRepository) ClaimPendingUpload(ctx context.Context, limit
 }
 
 func (r *StrmUploadTaskRepository) Update(ctx context.Context, t *model.StrmUploadTask) error {
-	return r.db.WithContext(ctx).Model(&model.StrmUploadTask{}).Where("id = ?", t.ID).Updates(map[string]any{
-		"status":      t.Status,
-		"error":       t.Error,
-		"retry_count": t.RetryCount,
-		"next_try_at": t.NextTryAt,
-		"started_at":  t.StartedAt,
-		"finished_at": t.FinishedAt,
-		"updated_at":  time.Now(),
-	}).Error
+	return withSQLiteBusyRetry(ctx, func() error {
+		return r.db.WithContext(ctx).Model(&model.StrmUploadTask{}).Where("id = ?", t.ID).Updates(map[string]any{
+			"status":      t.Status,
+			"error":       t.Error,
+			"retry_count": t.RetryCount,
+			"next_try_at": t.NextTryAt,
+			"started_at":  t.StartedAt,
+			"finished_at": t.FinishedAt,
+			"updated_at":  time.Now(),
+		}).Error
+	})
 }
 
 func (r *StrmUploadTaskRepository) Delete(ctx context.Context, id string) error {
-	return r.db.WithContext(ctx).Where("id = ?", id).Delete(&model.StrmUploadTask{}).Error
+	return withSQLiteBusyRetry(ctx, func() error {
+		return r.db.WithContext(ctx).Unscoped().Where("id = ?", id).Delete(&model.StrmUploadTask{}).Error
+	})
+}
+
+// DeleteBatch 批量删除指定 ID 的上传任务。
+func (r *StrmUploadTaskRepository) DeleteBatch(ctx context.Context, ids []string) (int64, error) {
+	if len(ids) == 0 {
+		return 0, nil
+	}
+	var count int64
+	err := withSQLiteBusyRetry(ctx, func() error {
+		res := r.db.WithContext(ctx).Unscoped().Where("id IN ?", ids).Delete(&model.StrmUploadTask{})
+		count = res.RowsAffected
+		return res.Error
+	})
+	return count, err
+}
+
+// RetryBatch 批量重试指定 ID 的失败/已取消上传任务。
+func (r *StrmUploadTaskRepository) RetryBatch(ctx context.Context, ids []string) (int64, error) {
+	if len(ids) == 0 {
+		return 0, nil
+	}
+	var count int64
+	err := withSQLiteBusyRetry(ctx, func() error {
+		res := r.db.WithContext(ctx).Model(&model.StrmUploadTask{}).
+			Where("id IN ? AND status IN ?", ids, []string{model.StrmTaskFailed, model.StrmTaskCanceled}).
+			Updates(map[string]any{
+				"status":      model.StrmTaskPending,
+				"error":       "",
+				"retry_count": 0,
+				"next_try_at": nil,
+				"started_at":  nil,
+				"finished_at": nil,
+				"updated_at":  time.Now(),
+			})
+		count = res.RowsAffected
+		return res.Error
+	})
+	return count, err
+}
+
+// CancelBatch 批量取消指定 ID 的排队/进行中上传任务。
+func (r *StrmUploadTaskRepository) CancelBatch(ctx context.Context, ids []string) (int64, error) {
+	if len(ids) == 0 {
+		return 0, nil
+	}
+	now := time.Now()
+	var count int64
+	err := withSQLiteBusyRetry(ctx, func() error {
+		res := r.db.WithContext(ctx).Model(&model.StrmUploadTask{}).
+			Where("id IN ? AND status IN ?", ids, []string{model.StrmTaskPending, model.StrmTaskRunning}).
+			Updates(map[string]any{
+				"status":      model.StrmTaskCanceled,
+				"error":       "已批量取消",
+				"finished_at": now,
+				"updated_at":  now,
+			})
+		count = res.RowsAffected
+		return res.Error
+	})
+	return count, err
+}
+
+// ClearDone 清空全部已完成上传任务。
+func (r *StrmUploadTaskRepository) ClearDone(ctx context.Context) (int64, error) {
+	var count int64
+	err := withSQLiteBusyRetry(ctx, func() error {
+		res := r.db.WithContext(ctx).Unscoped().Where("status = ?", model.StrmTaskDone).Delete(&model.StrmUploadTask{})
+		count = res.RowsAffected
+		return res.Error
+	})
+	return count, err
+}
+
+// ClearFinished 清空全部已完成与失败上传任务（包括已完成、失败及取消）。
+func (r *StrmUploadTaskRepository) ClearFinished(ctx context.Context) (int64, error) {
+	var count int64
+	err := withSQLiteBusyRetry(ctx, func() error {
+		res := r.db.WithContext(ctx).Unscoped().Where("status IN ?", []string{model.StrmTaskDone, model.StrmTaskFailed, model.StrmTaskCanceled}).
+			Delete(&model.StrmUploadTask{})
+		count = res.RowsAffected
+		return res.Error
+	})
+	return count, err
+}
+
+// ClearCanceled 清空全部已取消上传任务。
+func (r *StrmUploadTaskRepository) ClearCanceled(ctx context.Context) (int64, error) {
+	var count int64
+	err := withSQLiteBusyRetry(ctx, func() error {
+		res := r.db.WithContext(ctx).Unscoped().Where("status = ?", model.StrmTaskCanceled).Delete(&model.StrmUploadTask{})
+		count = res.RowsAffected
+		return res.Error
+	})
+	return count, err
+}
+
+// RetryAllFailed 把所有失败任务重置回待处理，清空错误与重试计数。
+func (r *StrmUploadTaskRepository) RetryAllFailed(ctx context.Context) (int64, error) {
+	var count int64
+	err := withSQLiteBusyRetry(ctx, func() error {
+		res := r.db.WithContext(ctx).Model(&model.StrmUploadTask{}).
+			Where("status = ?", model.StrmTaskFailed).
+			Updates(map[string]any{
+				"status":      model.StrmTaskPending,
+				"error":       "",
+				"retry_count": 0,
+				"next_try_at": nil,
+				"started_at":  nil,
+				"finished_at": nil,
+				"updated_at":  time.Now(),
+			})
+		count = res.RowsAffected
+		return res.Error
+	})
+	return count, err
+}
+
+// CancelPending 批量取消所有排队中和进行中的任务。
+func (r *StrmUploadTaskRepository) CancelPending(ctx context.Context) (int64, error) {
+	now := time.Now()
+	var count int64
+	err := withSQLiteBusyRetry(ctx, func() error {
+		res := r.db.WithContext(ctx).Model(&model.StrmUploadTask{}).
+			Where("status IN ?", []string{model.StrmTaskPending, model.StrmTaskRunning}).
+			Updates(map[string]any{
+				"status":      model.StrmTaskCanceled,
+				"error":       "已批量取消",
+				"finished_at": now,
+				"updated_at":  now,
+			})
+		count = res.RowsAffected
+		return res.Error
+	})
+	return count, err
 }
 
 // CountActive 统计某同步目录下目标仍在排队/进行的任务数（用于去重）。
@@ -431,8 +759,65 @@ func (r *StrmUploadTaskRepository) CountActive(ctx context.Context, syncPathID,
 	return count
 }
 
-func (r *StrmUploadTaskRepository) DeleteFinishedOlderThan(ctx context.Context, before time.Time) error {
-	return r.db.WithContext(ctx).Where("status IN ? AND finished_at < ?",
-		[]string{model.StrmTaskDone, model.StrmTaskFailed, model.StrmTaskCanceled}, before).
-		Delete(&model.StrmUploadTask{}).Error
+// GetActiveLocalPathMap 一次性获取某同步目录下正在排队或执行中的 local_path 集合，供同步时 O(1) 内存去重。
+func (r *StrmUploadTaskRepository) GetActiveLocalPathMap(ctx context.Context, syncPathID string) (map[string]bool, error) {
+	var paths []string
+	err := r.db.WithContext(ctx).Model(&model.StrmUploadTask{}).
+		Where("sync_path_id = ? AND status IN ?", syncPathID, []string{model.StrmTaskPending, model.StrmTaskRunning}).
+		Pluck("local_path", &paths).Error
+	if err != nil {
+		return nil, err
+	}
+	out := make(map[string]bool, len(paths))
+	for _, p := range paths {
+		out[p] = true
+	}
+	return out, nil
+}
+
+func (r *StrmUploadTaskRepository) DeleteFinishedOlderThan(ctx context.Context, before time.Time) error {
+	return withSQLiteBusyRetry(ctx, func() error {
+		return r.db.WithContext(ctx).Unscoped().Where("status IN ? AND finished_at < ?",
+			[]string{model.StrmTaskDone, model.StrmTaskFailed, model.StrmTaskCanceled}, before).
+			Delete(&model.StrmUploadTask{}).Error
+	})
+}
+
+// ─── StrmDirCache ─────────────────────────────────────────────────────────────
+
+// StrmDirCacheRepository persists model.StrmDirCache.
+type StrmDirCacheRepository struct{ db *gorm.DB }
+
+func (r *StrmDirCacheRepository) ListBySyncPathID(ctx context.Context, syncPathID string) ([]model.StrmDirCache, error) {
+	var rows []model.StrmDirCache
+	err := r.db.WithContext(ctx).Where("sync_path_id = ?", syncPathID).Find(&rows).Error
+	return rows, err
+}
+
+func (r *StrmDirCacheRepository) Set(ctx context.Context, syncPathID, dirID, path string) error {
+	return withSQLiteBusyRetry(ctx, func() error {
+		var row model.StrmDirCache
+		err := r.db.WithContext(ctx).Where("sync_path_id = ? AND dir_id = ?", syncPathID, dirID).First(&row).Error
+		if errors.Is(err, gorm.ErrRecordNotFound) {
+			row = model.StrmDirCache{
+				SyncPathID: syncPathID,
+				DirID:      dirID,
+				Path:       path,
+			}
+			return r.db.WithContext(ctx).Create(&row).Error
+		}
+		if err != nil {
+			return err
+		}
+		return r.db.WithContext(ctx).Model(&model.StrmDirCache{}).Where("id = ?", row.ID).Updates(map[string]any{
+			"path":       path,
+			"updated_at": time.Now(),
+		}).Error
+	})
+}
+
+func (r *StrmDirCacheRepository) DeleteBySyncPathID(ctx context.Context, syncPathID string) error {
+	return withSQLiteBusyRetry(ctx, func() error {
+		return r.db.WithContext(ctx).Unscoped().Where("sync_path_id = ?", syncPathID).Delete(&model.StrmDirCache{}).Error
+	})
 }

internal/repository/user_repository.go

@@ -133,26 +133,17 @@ func (r *UserRepository) TouchLogin(ctx context.Context, id string) error {
 	})
 }
 
-// Delete removes a user (soft-delete via gorm.DeletedAt), releases the unique
-// username, and drops Telegram bindings so future re-created users bind cleanly.
+// Delete 物理删除用户并级联清理其关联记录。
 func (r *UserRepository) Delete(ctx context.Context, id string) error {
-	return r.db.WithContext(ctx).Transaction(func(tx *gorm.DB) error {
-		var user model.User
-		if err := tx.Where("id = ?", id).First(&user).Error; err != nil {
-			return err
-		}
-		released := user.Username + "__deleted__" + time.Now().Format("20060102150405.000000000")
-		if len(released) > 64 {
-			sum := sha256.Sum256([]byte(user.ID + user.Username))
-			base := user.Username
-			if len(base) > 43 {
-				base = base[:43]
-			}
-			released = base + "__deleted__" + hex.EncodeToString(sum[:])[:10]
-		}
-		if err := tx.Model(&model.User{}).Where("id = ?", id).Update("username", released).Error; err != nil {
-			return err
-		}
-		return tx.Delete(&model.User{}, "id = ?", id).Error
+	return withSQLiteBusyRetry(ctx, func() error {
+		return r.db.WithContext(ctx).Transaction(func(tx *gorm.DB) error {
+			_ = tx.Unscoped().Where("user_id = ?", id).Delete(&model.RefreshToken{})
+			_ = tx.Unscoped().Where("user_id = ?", id).Delete(&model.UserPermission{})
+			_ = tx.Unscoped().Where("user_id = ?", id).Delete(&model.PlayProfile{})
+			_ = tx.Unscoped().Where("user_id = ?", id).Delete(&model.PlaybackHistory{})
+			_ = tx.Unscoped().Where("user_id = ?", id).Delete(&model.Favorite{})
+			_ = tx.Unscoped().Where("user_id = ?", id).Delete(&model.UserDevice{})
+			return tx.Unscoped().Delete(&model.User{}, "id = ?", id).Error
+		})
 	})
 }

internal/service/cache_cleanup.go

@@ -4,8 +4,11 @@
 package service
 
 import (
+	"errors"
 	"os"
 	"path/filepath"
+	"sort"
+	"strings"
 	"time"
 )
 
@@ -42,3 +45,96 @@ func walkAndPrune(root string, cutoff time.Time) error {
 	}
 	return nil
 }
+
+// PruneImageCacheResult holds stats from an image cache prune operation.
+type PruneImageCacheResult struct {
+	TotalFilesBefore int
+	TotalBytesBefore int64
+	DeletedFiles     int
+	FreedBytes       int64
+	RemainingBytes   int64
+}
+
+type imageCacheFileEntry struct {
+	path    string
+	size    int64
+	modTime time.Time
+}
+
+// PruneImageCache scans imagesDir for cached image files. If the total disk usage
+// exceeds maxSizeBytes, it removes files starting from the oldest (by ModTime)
+// until disk usage falls to or below targetSizeBytes (80% of maxSizeBytes).
+//
+// In-flight temporary files (*.tmp) are skipped to avoid corrupting concurrent writes.
+// Empty subdirectories left behind are best-effort removed.
+func PruneImageCache(imagesDir string, maxSizeBytes int64) (PruneImageCacheResult, error) {
+	var result PruneImageCacheResult
+	if imagesDir == "" || maxSizeBytes <= 0 {
+		return result, nil
+	}
+	if _, err := os.Stat(imagesDir); err != nil {
+		return result, nil
+	}
+
+	var (
+		dirs    []string
+		entries []imageCacheFileEntry
+	)
+
+	_ = filepath.Walk(imagesDir, func(path string, info os.FileInfo, err error) error {
+		if err != nil {
+			return nil
+		}
+		if info.IsDir() {
+			if path != imagesDir {
+				dirs = append(dirs, path)
+			}
+			return nil
+		}
+		// Skip temporary files created during image download.
+		name := info.Name()
+		if strings.HasSuffix(name, ".tmp") || strings.HasPrefix(name, "img-") && strings.Contains(name, ".tmp") {
+			return nil
+		}
+		size := info.Size()
+		result.TotalFilesBefore++
+		result.TotalBytesBefore += size
+		entries = append(entries, imageCacheFileEntry{
+			path:    path,
+			size:    size,
+			modTime: info.ModTime(),
+		})
+		return nil
+	})
+
+	result.RemainingBytes = result.TotalBytesBefore
+	if result.TotalBytesBefore <= maxSizeBytes {
+		return result, nil
+	}
+
+	// High/Low watermark: prune down to 80% of max size to leave headroom
+	// and prevent disk thrashing on consecutive writes.
+	targetSizeBytes := maxSizeBytes * 80 / 100
+
+	sort.Slice(entries, func(i, j int) bool {
+		return entries[i].modTime.Before(entries[j].modTime)
+	})
+
+	for _, entry := range entries {
+		if result.RemainingBytes <= targetSizeBytes {
+			break
+		}
+		if err := os.Remove(entry.path); err == nil || errors.Is(err, os.ErrNotExist) {
+			result.DeletedFiles++
+			result.FreedBytes += entry.size
+			result.RemainingBytes -= entry.size
+		}
+	}
+
+	// Clean up emptied subdirectories from deepest to shallowest.
+	for i := len(dirs) - 1; i >= 0; i-- {
+		_ = os.Remove(dirs[i])
+	}
+
+	return result, nil
+}

internal/service/cache_cleanup_test.go

@@ -0,0 +1,162 @@
+package service
+
+import (
+	"context"
+	"os"
+	"path/filepath"
+	"testing"
+	"time"
+
+	"go.uber.org/zap"
+)
+
+func TestPruneImageCache_UnderLimit(t *testing.T) {
+	dir := t.TempDir()
+
+	file1 := filepath.Join(dir, "img1")
+	file2 := filepath.Join(dir, "img2")
+	if err := os.WriteFile(file1, make([]byte, 100), 0o600); err != nil {
+		t.Fatal(err)
+	}
+	if err := os.WriteFile(file2, make([]byte, 200), 0o600); err != nil {
+		t.Fatal(err)
+	}
+
+	// Max limit is 500 bytes, total is 300 bytes -> no prune
+	res, err := PruneImageCache(dir, 500)
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if res.DeletedFiles != 0 {
+		t.Fatalf("expected 0 deleted files, got %d", res.DeletedFiles)
+	}
+	if res.TotalFilesBefore != 2 || res.TotalBytesBefore != 300 || res.RemainingBytes != 300 {
+		t.Fatalf("unexpected stats: %+v", res)
+	}
+}
+
+func TestPruneImageCache_OverLimitLRU(t *testing.T) {
+	dir := t.TempDir()
+
+	now := time.Now()
+	// Create 4 files of 100 bytes each, with distinct mtime
+	fOldest := filepath.Join(dir, "oldest")
+	fMidOld := filepath.Join(dir, "mid_old")
+	fMidNew := filepath.Join(dir, "mid_new")
+	fNewest := filepath.Join(dir, "newest")
+
+	for _, f := range []string{fOldest, fMidOld, fMidNew, fNewest} {
+		if err := os.WriteFile(f, make([]byte, 100), 0o600); err != nil {
+			t.Fatal(err)
+		}
+	}
+
+	_ = os.Chtimes(fOldest, now.Add(-4*time.Hour), now.Add(-4*time.Hour))
+	_ = os.Chtimes(fMidOld, now.Add(-3*time.Hour), now.Add(-3*time.Hour))
+	_ = os.Chtimes(fMidNew, now.Add(-2*time.Hour), now.Add(-2*time.Hour))
+	_ = os.Chtimes(fNewest, now.Add(-1*time.Hour), now.Add(-1*time.Hour))
+
+	// Total = 400 bytes. Max limit = 300 bytes.
+	// Target = 300 * 80 / 100 = 240 bytes.
+	// Deleting oldest (100) brings total to 300 (> 240).
+	// Deleting mid_old (100) brings total to 200 (<= 240).
+	// Total deleted = 2 files (200 bytes), remaining = 200 bytes.
+	res, err := PruneImageCache(dir, 300)
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if res.DeletedFiles != 2 {
+		t.Fatalf("expected 2 deleted files, got %d", res.DeletedFiles)
+	}
+	if res.FreedBytes != 200 {
+		t.Fatalf("expected 200 freed bytes, got %d", res.FreedBytes)
+	}
+	if res.RemainingBytes != 200 {
+		t.Fatalf("expected 200 remaining bytes, got %d", res.RemainingBytes)
+	}
+
+	// Verify oldest and mid_old were deleted, mid_new and newest still exist
+	if _, err := os.Stat(fOldest); !os.IsNotExist(err) {
+		t.Fatalf("expected oldest file to be deleted, got err=%v", err)
+	}
+	if _, err := os.Stat(fMidOld); !os.IsNotExist(err) {
+		t.Fatalf("expected mid_old file to be deleted, got err=%v", err)
+	}
+	if _, err := os.Stat(fMidNew); err != nil {
+		t.Fatalf("expected mid_new file to exist, got err=%v", err)
+	}
+	if _, err := os.Stat(fNewest); err != nil {
+		t.Fatalf("expected newest file to exist, got err=%v", err)
+	}
+}
+
+func TestPruneImageCache_SkipsTmpFiles(t *testing.T) {
+	dir := t.TempDir()
+
+	fTmp := filepath.Join(dir, "img-123.tmp")
+	fImg := filepath.Join(dir, "cached_img")
+
+	if err := os.WriteFile(fTmp, make([]byte, 500), 0o600); err != nil {
+		t.Fatal(err)
+	}
+	if err := os.WriteFile(fImg, make([]byte, 100), 0o600); err != nil {
+		t.Fatal(err)
+	}
+
+	// Limit is 200 bytes. fTmp (500) is ignored, only fImg (100) is counted <= 200.
+	res, err := PruneImageCache(dir, 200)
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if res.DeletedFiles != 0 {
+		t.Fatalf("expected 0 deleted files, got %d", res.DeletedFiles)
+	}
+	if _, err := os.Stat(fTmp); err != nil {
+		t.Fatalf("expected tmp file to remain untouched, got %v", err)
+	}
+}
+
+func TestPruneImageCache_ZeroOrNegativeLimit(t *testing.T) {
+	dir := t.TempDir()
+	f := filepath.Join(dir, "img")
+	if err := os.WriteFile(f, make([]byte, 100), 0o600); err != nil {
+		t.Fatal(err)
+	}
+
+	res, err := PruneImageCache(dir, 0)
+	if err != nil || res.DeletedFiles != 0 {
+		t.Fatalf("expected no-op for 0 limit, got %+v, err=%v", res, err)
+	}
+
+	res, err = PruneImageCache(dir, -10)
+	if err != nil || res.DeletedFiles != 0 {
+		t.Fatalf("expected no-op for negative limit, got %+v, err=%v", res, err)
+	}
+}
+
+func TestSchedulerJobCleanImageCache(t *testing.T) {
+	cacheRoot := t.TempDir()
+	imagesDir := filepath.Join(cacheRoot, "images")
+	if err := os.MkdirAll(imagesDir, 0o750); err != nil {
+		t.Fatal(err)
+	}
+
+	f := filepath.Join(imagesDir, "old_poster")
+	if err := os.WriteFile(f, make([]byte, 2*1024*1024), 0o600); err != nil {
+		t.Fatal(err)
+	}
+
+	scheduler := NewSchedulerService(zap.NewNop(), nil, nil, nil, nil, nil, cacheRoot)
+	// Set limit to 1MB; our file is 2MB -> should be pruned
+	scheduler.SetImagesMaxSizeMBProvider(func() int {
+		return 1
+	})
+
+	if err := scheduler.jobCleanImageCache(context.Background()); err != nil {
+		t.Fatalf("jobCleanImageCache failed: %v", err)
+	}
+
+	if _, err := os.Stat(f); !os.IsNotExist(err) {
+		t.Fatalf("expected file to be pruned, got err=%v", err)
+	}
+}

internal/service/cloud/cloud.go

@@ -30,6 +30,7 @@ const (
 	Type115         = "cloud115"    // 115 网盘
 	TypeCloudDrive2 = "clouddrive2" // CloudDrive2 桥接网盘
 	TypeOpenList    = "openlist"    // OpenList / AList-compatible bridge
+	TypeEmbyRemote  = "emby_remote" // 远程 Emby 服务器（API 网关挂载）
 )
 
 // ErrUnsupported is returned for an unknown provider type.
@@ -41,6 +42,7 @@ type FileEntry struct {
 	Name  string `json:"name"`
 	IsDir bool   `json:"is_dir"`
 	Size  int64  `json:"size"`
+	MTime int64  `json:"mtime,omitempty"`
 	// PickCode is 115-specific; other providers use ID directly.
 	PickCode string `json:"pick_code,omitempty"`
 }
@@ -100,6 +102,8 @@ func New(typ string, cfg map[string]any, client *http.Client) (Provider, error)
 		return newCloudDrive2(cfg, client), nil
 	case TypeOpenList:
 		return newOpenList(cfg, client), nil
+	case TypeEmbyRemote:
+		return newEmby(cfg, client), nil
 	default:
 		return nil, ErrUnsupported
 	}
@@ -107,7 +111,7 @@ func New(typ string, cfg map[string]any, client *http.Client) (Provider, error)
 
 // IsCloudType reports whether typ is a cloud-disk provider.
 func IsCloudType(typ string) bool {
-	return typ == Type115 || typ == TypeCloudDrive2 || typ == TypeOpenList
+	return typ == Type115 || typ == TypeCloudDrive2 || typ == TypeOpenList || typ == TypeEmbyRemote
 }
 
 // str coerces a config value to a trimmed string.

internal/service/cloud/emby.go

@@ -0,0 +1,246 @@
+// Emby remote provider: exposes a remote Emby server through the same
+// Provider interface used by cloud disks, so account CRUD / connectivity
+// test / directory browser work unchanged. This is a thin adapter — the
+// federated Emby API aggregation (Views / Items / PlaybackInfo / streaming
+// proxy) lives in service.EmbyRemoteService and does not go through the
+// cloud-disk sync machinery.
+package cloud
+
+import (
+	"context"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"io"
+	"net/http"
+	"net/url"
+	"strings"
+)
+
+// Emby 远程挂载类型（service 层聚合走 EmbyRemoteService，不走 STRM 同步）。
+
+// embyProvider implements Provider against a remote Emby server using an
+// api_key (token) for authentication. DirectLink.Resolve returns the remote
+// stream URL; whether MMTL reverse-proxies the bytes is decided by the
+// emby.proxy_play account config (defaults to off).
+type embyProvider struct {
+	base      string // e.g. http://host:8096（自动补 /emby 前缀）
+	username  string
+	password  string
+	token     string // api_key
+	userID    string // 远程用户 Id
+	proxyPlay bool
+	client    *http.Client
+}
+
+type embyUserPayload struct {
+	Id string `json:"Id"`
+}
+
+type embyLoginResponse struct {
+	AccessToken string          `json:"AccessToken"`
+	User        embyUserPayload `json:"User"`
+}
+
+type embyPingResponse struct {
+	ServerName string `json:"ServerName"`
+}
+
+// newEmby builds the provider from the account config map.
+func newEmby(cfg map[string]any, client *http.Client) Provider {
+	p := &embyProvider{
+		base:      strings.TrimRight(str(cfg["url"]), "/"),
+		username:  str(cfg["username"]),
+		password:  str(cfg["password"]),
+		token:     firstNonEmpty(str(cfg["api_key"]), str(cfg["token"])),
+		userID:    str(cfg["remote_user_id"]),
+		proxyPlay: boolish(cfg["proxy_play"]),
+		client:    client,
+	}
+	if p.client == nil {
+		p.client = &http.Client{Transport: &embyUATransport{base: http.DefaultTransport}}
+	}
+	return p
+}
+
+// embyUATransport 给远程 Emby 请求注入浏览器 UA（防 Cloudflare 风控拦截）。
+type embyUATransport struct {
+	base http.RoundTripper
+}
+
+func (t *embyUATransport) RoundTrip(req *http.Request) (*http.Response, error) {
+	if strings.TrimSpace(req.Header.Get("User-Agent")) == "" {
+		req.Header.Set("User-Agent", defaultUA)
+	}
+	return t.base.RoundTrip(req)
+}
+
+// embyBase normalizes the address so requests go to /emby/... endpoints.
+func (p *embyProvider) embyBase() string {
+	base := strings.TrimRight(p.base, "/")
+	if !strings.Contains(base, "/emby") {
+		base += "/emby"
+	}
+	return base
+}
+
+// externalBase 不追加 /emby（内嵌媒体资源 URL 使用 /emby 会更贴近习惯，此处
+// 与 embyBase 保持一致：所有端点统一以 /emby 开头）。
+func (p *embyProvider) apiBase() string { return p.embyBase() }
+
+func (p *embyProvider) Type() string { return TypeEmbyRemote }
+
+// Ping 验证地址连通性与凭据（/System/Info）。
+func (p *embyProvider) Ping(ctx context.Context) error {
+	if p.base == "" {
+		return errors.New("缺少 Emby 地址")
+	}
+	token, err := p.ensureToken(ctx)
+	if err != nil {
+		return err
+	}
+	return p.doJSON(ctx, http.MethodGet, "/System/Info", nil, token, &embyPingResponse{})
+}
+
+// doJSON 向远程 Emby 发起带 api_key 的请求并解析 JSON 响应。
+func (p *embyProvider) doJSON(ctx context.Context, method, path string, body io.Reader, token string, out any) error {
+	endpoint := p.apiBase() + path
+	if token != "" {
+		sep := "?"
+		if strings.Contains(endpoint, "?") {
+			sep = "&"
+		}
+		endpoint += sep + "api_key=" + url.QueryEscape(token)
+	}
+	req, err := http.NewRequestWithContext(ctx, method, endpoint, body)
+	if err != nil {
+		return err
+	}
+	req.Header.Set("X-Emby-Token", token)
+	if body != nil {
+		req.Header.Set("Content-Type", "application/json")
+	}
+	resp, err := p.client.Do(req)
+	if err != nil {
+		return err
+	}
+	defer resp.Body.Close()
+	if resp.StatusCode >= 300 {
+		if resp.StatusCode == http.StatusUnauthorized {
+			return ErrEmbyUnauthorized
+		}
+		data, _ := io.ReadAll(io.LimitReader(resp.Body, 512))
+		return fmt.Errorf("emby 请求失败(%d): %s", resp.StatusCode, strings.TrimSpace(string(data)))
+	}
+	if out == nil {
+		return nil
+	}
+	return json.NewDecoder(resp.Body).Decode(out)
+}
+
+// ErrEmbyUnauthorized 表示远程凭据失效（触发重新认证/打回测试）。
+var ErrEmbyUnauthorized = errors.New("emby 认证失败或凭据已失效")
+
+// ensureToken 返回可用 api_key：已有则直接用，否则尝试账号密码认证。
+func (p *embyProvider) ensureToken(ctx context.Context) (string, error) {
+	if strings.TrimSpace(p.token) != "" {
+		return p.token, nil
+	}
+	if strings.TrimSpace(p.username) == "" {
+		return "", errors.New("缺少 Emby 凭据（token 或 用户名/密码）")
+	}
+	payload := map[string]string{"Username": p.username, "Pw": p.password}
+	data, err := json.Marshal(payload)
+	if err != nil {
+		return "", err
+	}
+	req, err := http.NewRequestWithContext(ctx, http.MethodPost, p.apiBase()+"/Users/AuthenticateByName", strings.NewReader(string(data)))
+	if err != nil {
+		return "", err
+	}
+	req.Header.Set("Content-Type", "application/json")
+	req.Header.Set("X-Emby-Authorization", `MediaBrowser Client="MMTL", Device="MMTL-Federated", DeviceId="mmtl-federated", Version="1.0"`)
+	resp, err := p.client.Do(req)
+	if err != nil {
+		return "", err
+	}
+	defer resp.Body.Close()
+	if resp.StatusCode >= 300 {
+		return "", fmt.Errorf("emby 登录失败(%d)", resp.StatusCode)
+	}
+	var login embyLoginResponse
+	if err := json.NewDecoder(resp.Body).Decode(&login); err != nil {
+		return "", err
+	}
+	if strings.TrimSpace(login.AccessToken) == "" {
+		return "", errors.New("emby 登录成功但未返回 AccessToken")
+	}
+	p.token = login.AccessToken
+	if login.User.Id != "" {
+		p.userID = login.User.Id
+	}
+	return p.token, nil
+}
+
+// embyItemSummary 目录浏览所需的最小 Emby 条目字段。
+type embyItemSummary struct {
+	Id           string `json:"Id"`
+	Name         string `json:"Name"`
+	Type         string `json:"Type"`
+	IsFolder     bool   `json:"IsFolder"`
+	ChildCount   int    `json:"ChildCount"`
+	RunTimeTicks int64  `json:"RunTimeTicks"`
+}
+
+type embyItemListResponse struct {
+	Items []embyItemSummary `json:"Items"`
+}
+
+// List 把远程媒体库(View)展开为目录树：dirID 为空=媒体库列表；否则返回该
+// 目录(Movie/Series/Season/Folder)下的条目。用于账号「浏览目录」调试入口。
+func (p *embyProvider) List(ctx context.Context, dirID string) ([]FileEntry, error) {
+	token, err := p.ensureToken(ctx)
+	if err != nil {
+		return nil, err
+	}
+	userID := p.userID
+	if userID == "" {
+		userID = "0" // 某些 Emby 允许用 0 代表管理员
+	}
+	path := "/Users/" + url.PathEscape(userID) + "/Items"
+	if dirID != "" {
+		path += "?ParentId=" + url.QueryEscape(dirID)
+	} else {
+		path += "?IncludeItemTypes=CollectionFolder"
+	}
+	var out embyItemListResponse
+	if err := p.doJSON(ctx, http.MethodGet, path, nil, token, &out); err != nil {
+		return nil, err
+	}
+	entries := make([]FileEntry, 0, len(out.Items))
+	for _, it := range out.Items {
+		size := int64(0)
+		if it.RunTimeTicks > 0 {
+			size = it.RunTimeTicks / 10_000_000 // 秒
+		}
+		entries = append(entries, FileEntry{
+			ID:    it.Id,
+			Name:  it.Name,
+			IsDir: it.IsFolder || it.Type != "Movie",
+			Size:  size,
+		})
+	}
+	return entries, nil
+}
+
+// Resolve 返回远程 Emby 直链。Proxy=true 时由调用方(StrmService.ProxyDirect)
+// 反向代理流量；false 时 302 到直链。默认不代理（播放字节不经过 MMTL）。
+func (p *embyProvider) Resolve(ctx context.Context, fileRef string) (*DirectLink, error) {
+	token, err := p.ensureToken(ctx)
+	if err != nil {
+		return nil, err
+	}
+	u := p.apiBase() + "/Videos/" + url.PathEscape(fileRef) + "/stream"
+	u += "?api_key=" + url.QueryEscape(token) + "&Static=true&MediaSourceId=" + url.QueryEscape(fileRef)
+	return &DirectLink{URL: u, Headers: map[string]string{"X-Emby-Token": token}, Proxy: p.proxyPlay}, nil
+}

internal/service/cloud/emby_test.go

@@ -0,0 +1,136 @@
+package cloud
+
+import (
+	"context"
+	"net/http"
+	"net/http/httptest"
+	"strings"
+	"testing"
+)
+
+// fakeEmbyServer 记录请求，按路径返回远程 Emby 风格响应。
+func fakeEmbyServer(t *testing.T) *httptest.Server {
+	return httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		switch {
+		case r.Method == http.MethodPost && r.URL.Path == "/emby/Users/AuthenticateByName":
+			w.Header().Set("Content-Type", "application/json")
+			_, _ = w.Write([]byte(`{"AccessToken":"remote-token","User":{"Id":"user-9"}}`))
+		case r.URL.Path == "/emby/System/Info":
+			w.Header().Set("Content-Type", "application/json")
+			_, _ = w.Write([]byte(`{"ServerName":"RemoteEmby"}`))
+		case r.URL.Path == "/emby/Users/user-9/Items" && r.URL.Query().Get("ParentId") == "":
+			w.Header().Set("Content-Type", "application/json")
+			_, _ = w.Write([]byte(`{"Items":[{"Id":"view-1","Name":"Movies","Type":"CollectionFolder","IsFolder":true}]}`))
+		case r.URL.Path == "/emby/Users/user-9/Items":
+			w.Header().Set("Content-Type", "application/json")
+			_, _ = w.Write([]byte(`{"Items":[{"Id":"movie-1","Name":"Avatar","Type":"Movie","IsFolder":false}]}`))
+		case strings.Contains(r.URL.Path, "/emby/Videos/movie-1/stream"):
+			w.Header().Set("Content-Type", "video/mp4")
+			_, _ = w.Write([]byte("fake-video-bytes"))
+		default:
+			t.Fatalf("unexpected request %s %s", r.Method, r.URL.Path)
+		}
+	}))
+}
+
+func TestEmbyProviderPingAuthenticatesAndGetsToken(t *testing.T) {
+	srv := fakeEmbyServer(t)
+	defer srv.Close()
+
+	p, err := New(TypeEmbyRemote, map[string]any{
+		"url":      srv.URL,
+		"username": "alice",
+		"password": "secret",
+	}, srv.Client())
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err := p.Ping(context.Background()); err != nil {
+		t.Fatalf("ping: %v", err)
+	}
+	// 认证成功后 token 被记住，第二次 Ping 不应再走登录。
+	if err := p.Ping(context.Background()); err != nil {
+		t.Fatalf("ping 2: %v", err)
+	}
+}
+
+func TestEmbyProviderListViewsAndChildren(t *testing.T) {
+	srv := fakeEmbyServer(t)
+	defer srv.Close()
+
+	p, err := New(TypeEmbyRemote, map[string]any{
+		"url":            srv.URL,
+		"api_key":        "fixed-token",
+		"remote_user_id": "user-9",
+	}, srv.Client())
+	if err != nil {
+		t.Fatal(err)
+	}
+	root, err := p.List(context.Background(), "")
+	if err != nil {
+		t.Fatalf("list root: %v", err)
+	}
+	if len(root) != 1 || root[0].Name != "Movies" || !root[0].IsDir {
+		t.Fatalf("root listing = %+v", root)
+	}
+	children, err := p.List(context.Background(), "view-1")
+	if err != nil {
+		t.Fatalf("list children: %v", err)
+	}
+	if len(children) != 1 || children[0].Name != "Avatar" || children[0].ID != "movie-1" {
+		t.Fatalf("children = %+v", children)
+	}
+}
+
+func TestEmbyProviderResolveDirectURLByDefault(t *testing.T) {
+	srv := fakeEmbyServer(t)
+	defer srv.Close()
+
+	p, err := New(TypeEmbyRemote, map[string]any{
+		"url":            srv.URL,
+		"api_key":        "fixed-token",
+		"remote_user_id": "user-9",
+	}, srv.Client())
+	if err != nil {
+		t.Fatal(err)
+	}
+	link, err := p.Resolve(context.Background(), "movie-1")
+	if err != nil {
+		t.Fatalf("resolve: %v", err)
+	}
+	if !strings.Contains(link.URL, "/emby/Videos/movie-1/stream") {
+		t.Fatalf("url = %q", link.URL)
+	}
+	if !strings.Contains(link.URL, "api_key=fixed-token") {
+		t.Fatalf("url missing api_key: %q", link.URL)
+	}
+	// 默认不代理播放流量。
+	if link.Proxy {
+		t.Fatal("emby remote must not proxy by default")
+	}
+}
+
+func TestEmbyProviderResolveProxyWhenConfigured(t *testing.T) {
+	srv := fakeEmbyServer(t)
+	defer srv.Close()
+
+	p, err := New(TypeEmbyRemote, map[string]any{
+		"url":            srv.URL,
+		"api_key":        "fixed-token",
+		"remote_user_id": "user-9",
+		"proxy_play":     "true",
+	}, srv.Client())
+	if err != nil {
+		t.Fatal(err)
+	}
+	link, err := p.Resolve(context.Background(), "movie-1")
+	if err != nil {
+		t.Fatalf("resolve: %v", err)
+	}
+	if !link.Proxy {
+		t.Fatal("proxy_play=true must mark link as proxied")
+	}
+	if link.URL == "" {
+		t.Fatal("proxy link must still carry the remote URL")
+	}
+}

internal/service/cloud/pan115_openapi.go

@@ -17,11 +17,20 @@ package cloud
 import (
 	"context"
 	"fmt"
+	"io"
+	"os"
+	"path/filepath"
 	"strings"
 
 	"github.com/ShukeBta/MMTL/internal/service/cloud115"
 )
 
+// OpenAPI115Provider 暴露 115 开放平台驱动接口。
+type OpenAPI115Provider interface {
+	Provider
+	OpenClient() *cloud115.OpenClient
+}
+
 // openAPI115Provider 实现 Provider 接口：List 列目录、Resolve 用 pickcode
 // 换下载直链（302 offload，无需代理）、Ping 探测根目录。
 type openAPI115Provider struct {
@@ -61,6 +70,7 @@ func (p *openAPI115Provider) List(ctx context.Context, dirID string) ([]FileEntr
 				Name:     f.FileName,
 				IsDir:    f.Category == cloud115.TypeDir,
 				Size:     f.FileSize,
+				MTime:    f.Utime,
 				PickCode: f.PickCode,
 			})
 		}
@@ -77,16 +87,60 @@ func (p *openAPI115Provider) List(ctx context.Context, dirID string) ([]FileEntr
 }
 
 func (p *openAPI115Provider) Resolve(ctx context.Context, fileRef string) (*DirectLink, error) {
-	url, err := p.c.GetDownloadURL(ctx, fileRef)
+	return p.ResolveWithUA(ctx, fileRef, "")
+}
+
+func (p *openAPI115Provider) ResolveWithUA(ctx context.Context, fileRef, ua string) (*DirectLink, error) {
+	url, err := p.c.GetDownloadURLWithUA(ctx, fileRef, ua)
 	if err != nil {
 		return nil, err
 	}
-	return &DirectLink{URL: url, Proxy: false}, nil
+	// 115 CDN 防盗链白名单：直链绑定换取时的 User-Agent（调用方 UA 或
+	// DefaultUA），后续请求必须携带同一 UA，否则 403。302 播放由客户端
+	// 自带 UA 天然满足；服务端直连（弹幕 hash 等）依赖这里的 Headers。
+	bound := strings.TrimSpace(ua)
+	if bound == "" {
+		bound = cloud115.DefaultUA
+	}
+	return &DirectLink{URL: url, Proxy: false, Headers: map[string]string{"User-Agent": bound}}, nil
 }
 
 // OpenClient 暴露底层客户端（token 刷新用）。
 func (p *openAPI115Provider) OpenClient() *cloud115.OpenClient { return p.c }
 
+// PutFileNamed 把本地元数据上传到 115 指定父目录（parentCID 为父目录 cid）。
+// io.Reader 无法携带文件名，因此走独立的 named 上传接口。将内容落为临时文件后
+// 重命名为目标文件名，再交给 115 上传（/open/upload/init 的 file_name 取真实文件名）。
+func (p *openAPI115Provider) PutFileNamed(ctx context.Context, parentCID, fileName string, r io.Reader) error {
+	tmp, err := os.CreateTemp("", "mmtl-upload-*")
+	if err != nil {
+		return fmt.Errorf("115: 创建临时文件失败：%w", err)
+	}
+	tmpPath := tmp.Name()
+	defer func() {
+		_ = tmp.Close()
+		_ = os.Remove(tmpPath)
+	}()
+	if _, err := io.Copy(tmp, r); err != nil {
+		return fmt.Errorf("115: 写入临时文件失败：%w", err)
+	}
+	if err := tmp.Close(); err != nil {
+		return fmt.Errorf("115: 关闭临时文件失败：%w", err)
+	}
+	// 重命名为目标文件名，保证上传到 115 后保留原始文件名
+	if fileName != "" && fileName != filepath.Base(tmpPath) {
+		namedPath := filepath.Join(filepath.Dir(tmpPath), fileName)
+		if err := os.Rename(tmpPath, namedPath); err == nil {
+			tmpPath = namedPath
+		}
+	}
+	_, err = p.c.Upload(ctx, tmpPath, parentCID, "", "")
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
 // RefreshToken 刷新访问令牌并返回新令牌；refresh_token 失效时返回
 // cloud115.IsRefreshTokenDead(err) 为 true 的错误。
 func (p *openAPI115Provider) RefreshToken(refreshToken string) (*cloud115.TokenData, error) {

internal/service/cloud115/client.go

@@ -11,6 +11,7 @@ import (
 	"net/http"
 	"net/url"
 	"strings"
+	"sync"
 	"time"
 )
 
@@ -21,6 +22,10 @@ type OpenClient struct {
 	AccessToken     string
 	RefreshTokenStr string
 	executor        *QueueExecutor
+
+	// tokenMu 保护令牌刷新：业务请求中途 access_token 失效时自动刷新重试，
+	// 多 goroutine（同步列表 + 下载队列）并发下只允许一次刷新进行。
+	tokenMu sync.Mutex
 }
 
 // default115HTTPClient 创建带有防 405 重定向保护的 http.Client。
@@ -85,16 +90,21 @@ type RespBase struct {
 	Errno   int             `json:"errno"`
 	Message string          `json:"message"`
 	Error   string          `json:"error"`
+	Count   int64           `json:"count"`
 	Data    json.RawMessage `json:"data"`
 	Raw     json.RawMessage `json:"-"` // 原始响应体（外层附加字段用）
 }
 
 // doJSON 执行 HTTP 请求并解析为统一响应；带 AccessToken（access=true 时）。
-func (c *OpenClient) doJSON(ctx context.Context, method, rawURL string, form map[string]string, access bool, retries int) (*RespBase, error) {
+func (c *OpenClient) doJSON(ctx context.Context, method, rawURL string, form map[string]string, access bool, retries int, uas ...string) (*RespBase, error) {
 	executor := c.executor
 	if executor == nil {
 		executor = GetGlobalExecutor()
 	}
+	ua := ""
+	if len(uas) > 0 {
+		ua = uas[0]
+	}
 
 	var lastErr error
 	for attempt := 0; attempt <= retries; attempt++ {
@@ -103,7 +113,7 @@ func (c *OpenClient) doJSON(ctx context.Context, method, rawURL string, form map
 			return nil, err
 		}
 
-		req, err := c.buildRequest(ctx, method, rawURL, form, access)
+		req, err := c.buildRequestWithUA(ctx, method, rawURL, form, access, ua)
 		if err != nil {
 			return nil, err
 		}
@@ -171,9 +181,18 @@ func (c *OpenClient) doJSON(ctx context.Context, method, rawURL string, form map
 			return &base, lastErr
 		}
 
-		// Token 失效不重试
+		// Token 失效（access_token 过期，如长时间同步中途过期）：自动用
+		// refresh_token 刷新后重试一次。刷新失败或重试后仍失败才返回，
+		// 避免长时间同步因 token 过期而整体失败。
 		if isTokenCode(base.Code) {
-			return &base, nil
+			if access && c.tryRefreshTokenLocked(ctx) {
+				continue
+			}
+			if access {
+				// 刷新失败（或已刷新仍失败）时返回明确错误
+				lastErr = NewOpenAPIResponseError(base.Code, base.Errno, base.Message, base.Error, "115: access_token 校验失败且刷新未成功")
+			}
+			return &base, lastErr
 		}
 
 		lastErr = NewOpenAPIResponseError(base.Code, base.Errno, base.Message, base.Error, "115 接口调用失败")
@@ -187,6 +206,10 @@ func (c *OpenClient) doJSON(ctx context.Context, method, rawURL string, form map
 }
 
 func (c *OpenClient) buildRequest(ctx context.Context, method, rawURL string, form map[string]string, access bool) (*http.Request, error) {
+	return c.buildRequestWithUA(ctx, method, rawURL, form, access, "")
+}
+
+func (c *OpenClient) buildRequestWithUA(ctx context.Context, method, rawURL string, form map[string]string, access bool, ua string) (*http.Request, error) {
 	method = strings.ToUpper(method)
 	var body io.Reader
 	if method == http.MethodPost && len(form) > 0 {
@@ -211,7 +234,11 @@ func (c *OpenClient) buildRequest(ctx context.Context, method, rawURL string, fo
 	if err != nil {
 		return nil, err
 	}
-	req.Header.Set("User-Agent", DefaultUA)
+	targetUA := DefaultUA
+	if strings.TrimSpace(ua) != "" {
+		targetUA = strings.TrimSpace(ua)
+	}
+	req.Header.Set("User-Agent", targetUA)
 	if method == http.MethodPost && len(form) > 0 {
 		req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
 	}
@@ -226,6 +253,51 @@ func (c *OpenClient) doAuthJSON(ctx context.Context, method, rawURL string, form
 	return c.doJSON(ctx, method, rawURL, form, true, retries)
 }
 
+// doAuthJSONWithUA 带自定义 User-Agent 的业务请求（换取直链等防盗链接口使用）。
+func (c *OpenClient) doAuthJSONWithUA(ctx context.Context, method, rawURL string, form map[string]string, retries int, ua string) (*RespBase, error) {
+	return c.doJSON(ctx, method, rawURL, form, true, retries, ua)
+}
+
+// tryRefreshTokenLocked 并发安全地刷新 access_token；成功返回 true（调用方
+// 应使用内存中的新 token 重试原请求）。
+//
+// 对"refresh_token 本身已失效/被吊销"（IsRefreshTokenDead，如 40140114/116/119/120）
+// 这类不可恢复的错误直接放弃并清空内存 token（提示需重新授权）。
+// 对其它失败（网络瞬时抖动、刷新接口可重试错误码等）做指数退避重试几次再放弃，
+// 避免同步长任务中途 token 到期时恰好撞上一个短暂的刷新失败就整体失败。
+func (c *OpenClient) tryRefreshTokenLocked(ctx context.Context) bool {
+	c.tokenMu.Lock()
+	defer c.tokenMu.Unlock()
+	for attempt := 0; attempt < refreshAttempts; attempt++ {
+		token, err := c.RefreshToken(c.RefreshTokenStr)
+		if err == nil {
+			c.SetAuthToken(token.AccessToken, token.RefreshToken)
+			return true
+		}
+		if IsRefreshTokenDead(err) {
+			c.SetAuthToken("", "")
+			return false
+		}
+		// 可恢复失败：退避后重试。ctx 取消时立即放弃。
+		if attempt < refreshAttempts-1 {
+			select {
+			case <-ctx.Done():
+				return false
+			case <-time.After(refreshBackoff(attempt)):
+			}
+		}
+	}
+	return false
+}
+
+// refreshAttempts 是刷新 access_token 失败时的最大尝试次数（含首次）。
+const refreshAttempts = 3
+
+// refreshBackoff 返回第 attempt 次（从 0 计）刷新失败后的退避时长（指数退避）。
+func refreshBackoff(attempt int) time.Duration {
+	return time.Duration(200*(1<<attempt)) * time.Millisecond // 200ms, 400ms
+}
+
 // IsThrottleCode 判断是否为限流错误码。
 func IsThrottleCode(code int) bool {
 	return code == RequestMaxLimitCode || code == RequestRateLimitCode
@@ -233,7 +305,7 @@ func IsThrottleCode(code int) bool {
 
 func isTokenCode(code int) bool {
 	switch code {
-	case AccessTokenAuthFail, AccessAuthInvalid, AccessTokenExpiryCode, RefreshTokenInvalid:
+	case AccessTokenAuthFail, AccessAuthInvalid, AccessTokenExpiryCode, AccessTokenFormatInvalid, RefreshTokenInvalid:
 		return true
 	}
 	return false

internal/service/cloud115/cloud115_test.go

@@ -375,3 +375,100 @@ func TestThrottleCodeHandling(t *testing.T) {
 		t.Fatal("code 770004 should trigger throttle status")
 	}
 }
+
+func TestRemoteFileDetailRelativePath(t *testing.T) {
+	rootCID := "3238787832374488117" // 影视库
+
+	// 场景 1：115 目录 paths 中只有祖先目录链，不包含自身
+	d1 := &RemoteFileDetail{
+		FileId:   "3251154147730910635",
+		FileName: "出包王女",
+		Paths: []struct {
+			FileId string `json:"file_id"`
+			Name   string `json:"file_name"`
+		}{
+			{FileId: "0", Name: "根目录"},
+			{FileId: "3238787832374488117", Name: "影视库"},
+			{FileId: "3238787913223892116", Name: "动漫"},
+		},
+	}
+	if got := d1.RelativePath(rootCID); got != "动漫/出包王女" {
+		t.Errorf("d1.RelativePath = %q, want %q", got, "动漫/出包王女")
+	}
+
+	// 场景 2：祖先中间目录，自身在 paths 末尾
+	d2 := &RemoteFileDetail{
+		FileId:   "3238787913223892116",
+		FileName: "动漫",
+		Paths: []struct {
+			FileId string `json:"file_id"`
+			Name   string `json:"file_name"`
+		}{
+			{FileId: "0", Name: "根目录"},
+			{FileId: "3238787832374488117", Name: "影视库"},
+			{FileId: "3238787913223892116", Name: "动漫"},
+		},
+	}
+	if got := d2.RelativePath(rootCID); got != "动漫" {
+		t.Errorf("d2.RelativePath = %q, want %q", got, "动漫")
+	}
+
+	// 场景 3：根同步目录自身
+	d3 := &RemoteFileDetail{
+		FileId:   rootCID,
+		FileName: "影视库",
+		Paths: []struct {
+			FileId string `json:"file_id"`
+			Name   string `json:"file_name"`
+		}{
+			{FileId: "0", Name: "根目录"},
+			{FileId: rootCID, Name: "影视库"},
+		},
+	}
+	if got := d3.RelativePath(rootCID); got != "" {
+		t.Errorf("d3.RelativePath = %q, want %q", got, "")
+	}
+}
+
+// TestFsListRefreshContinue 验证 access_token 在请求中途过期（40140126）时：
+// 自动用 refresh_token 刷新得到新 token，然后对原请求重试成功（同步得以继续）。
+func TestFsListRefreshContinue(t *testing.T) {
+	var filesCalls int
+	var refreshCalls int
+	mockAPI(t, func(w http.ResponseWriter, r *http.Request) {
+		switch r.URL.Path {
+		case "/open/refreshToken":
+			refreshCalls++
+			w.Write([]byte(`{"state":true,"data":{"access_token":"at2","refresh_token":"rt2","expires_in":7200}}`))
+		case "/open/ufile/files":
+			filesCalls++
+			switch filesCalls {
+			case 1:
+				// 第一次用旧 access_token，返回过期错误，应触发刷新
+				w.Write([]byte(`{"state":false,"code":40140126,"message":"access_token 校验失败"}`))
+			default:
+				// 刷新后续请求应使用新 access_token
+				if got := r.Header.Get("Authorization"); got != "Bearer at2" {
+					t.Errorf("retried request auth = %q, want Bearer at2", got)
+				}
+				w.Write([]byte(`{"state":true,"path":[],"data":[{"fid":"200","fc":"1","fn":"a.mkv","fs":123,"pc":"pickA"}]}`))
+			}
+		default:
+			t.Errorf("unexpected path %s", r.URL.Path)
+		}
+	})
+	c := NewOpenClient("100195125", "at1", "rt1")
+	files, _, err := c.GetFsList(context.Background(), "0", 0, 100)
+	if err != nil {
+		t.Fatalf("expected sync to continue after refresh, got error: %v", err)
+	}
+	if filesCalls != 2 {
+		t.Fatalf("want 2 files calls (original + retried), got %d", filesCalls)
+	}
+	if refreshCalls == 0 {
+		t.Fatal("expected refresh_token to be used once")
+	}
+	if len(files) != 1 {
+		t.Fatalf("want 1 file, got %d", len(files))
+	}
+}

internal/service/cloud115/const.go

@@ -21,13 +21,14 @@ var (
 
 const (
 	// 业务错误码
-	AccessTokenAuthFail   = 40140126 // 访问过期，需刷新
-	AccessTokenExpiryCode = 40140125 // 访问过期，需刷新
-	AccessAuthInvalid     = 40140124 // 访问无效，需刷新
-	RefreshTokenInvalid   = 40140116 // 需重新授权
-	TokenRefreshFail      = 40140121 // 刷新失败，可重试
-	RequestMaxLimitCode   = 770004   // 访问频率过高
-	RequestRateLimitCode  = 406      // 达到访问上限
+	AccessTokenAuthFail      = 40140126 // 访问过期，需刷新
+	AccessTokenExpiryCode    = 40140125 // 访问过期，需刷新
+	AccessAuthInvalid        = 40140124 // 访问无效，需刷新
+	AccessTokenFormatInvalid = 40140123 // access_token 格式错误，需刷新
+	RefreshTokenInvalid      = 40140116 // 需重新授权
+	TokenRefreshFail         = 40140121 // 刷新失败，可重试
+	RequestMaxLimitCode      = 770004   // 访问频率过高
+	RequestRateLimitCode     = 406      // 达到访问上限
 
 	// 刷新 token 的错误码
 	RefreshTokenFormatInvalid = 40140114

internal/service/cloud115/open.go

@@ -89,6 +89,36 @@ func (c *OpenClient) GetFsList(ctx context.Context, cid string, offset, limit in
 	return files, strings.Join(pathStr, "/"), nil
 }
 
+// GetFsListFlat 递归扁平化列出 cid 下的所有文件（跨越所有子目录，不包含文件夹节点），并返回文件列表与该树下的总文件数。
+// 类似于 QMediaSync 的 115 扁平化批量拉取机制，极大地降低多层级子目录下的 API 请求次数。
+func (c *OpenClient) GetFsListFlat(ctx context.Context, cid string, offset, limit int) ([]RemoteFile, int64, error) {
+	if cid == "" {
+		cid = "0"
+	}
+	if limit <= 0 {
+		limit = 1150
+	}
+	params := map[string]string{
+		"cid":      cid,
+		"limit":    fmt.Sprint(limit),
+		"offset":   fmt.Sprint(offset),
+		"cur":      "0",
+		"show_dir": "0",
+	}
+	resp, err := c.doAuthJSON(ctx, "GET", ProAPIBase+"/open/ufile/files", params, 2)
+	if err != nil {
+		return nil, 0, err
+	}
+	if !resp.State {
+		return nil, 0, NewOpenAPIResponseError(resp.Code, resp.Errno, resp.Message, resp.Error, "115 接口调用失败")
+	}
+	files, err := openList[RemoteFile](resp.Data)
+	if err != nil {
+		return nil, 0, fmt.Errorf("115: 解析文件列表失败：%w", err)
+	}
+	return files, resp.Count, nil
+}
+
 // GetFsDetailByCid 查询文件（夹）详情。
 func (c *OpenClient) GetFsDetailByCid(ctx context.Context, fileId string) (*RemoteFileDetail, error) {
 	params := map[string]string{"file_id": fileId}
@@ -113,6 +143,48 @@ type RemoteFileDetail struct {
 	} `json:"paths"`
 }
 
+// RelativePath 计算该目录相对于根同步目录（rootCID）的相对路径。
+func (d *RemoteFileDetail) RelativePath(rootCID string) string {
+	if d == nil {
+		return ""
+	}
+	if rootCID == "" {
+		rootCID = "0"
+	}
+	if d.FileId == rootCID {
+		return ""
+	}
+	rootIdx := -1
+	for i, p := range d.Paths {
+		if p.FileId == rootCID {
+			rootIdx = i
+			break
+		}
+	}
+	var segments []string
+	start := 0
+	if rootIdx >= 0 {
+		start = rootIdx + 1
+	} else if len(d.Paths) > 0 && (d.Paths[0].FileId == "0" || d.Paths[0].FileId == "") {
+		start = 1
+	}
+	hasSelf := false
+	for i := start; i < len(d.Paths); i++ {
+		if d.Paths[i].FileId == d.FileId {
+			hasSelf = true
+		}
+		name := strings.TrimSpace(d.Paths[i].Name)
+		if name != "" {
+			segments = append(segments, name)
+		}
+	}
+	// 若 115 返回的 paths 祖先链未包含当前目录自身，则将其自身目录名 FileName 补在末尾
+	if !hasSelf && strings.TrimSpace(d.FileName) != "" && d.FileId != rootCID {
+		segments = append(segments, strings.TrimSpace(d.FileName))
+	}
+	return strings.Join(segments, "/")
+}
+
 // ─── 下载直链 ──────────────────────────────────────────────────────────────────
 
 type downloadURLData struct {
@@ -127,11 +199,17 @@ type downloadURLData struct {
 // GetDownloadURL 获取下载直链（pickcode）。命中缓存直接返回，
 // 避免对同一文件反复换取直链触发 115 风控。
 func (c *OpenClient) GetDownloadURL(ctx context.Context, pickCode string) (string, error) {
-	if cached := GetDownloadURLCache(pickCode); cached != "" {
+	return c.GetDownloadURLWithUA(ctx, pickCode, "")
+}
+
+// GetDownloadURLWithUA 支持按调用方/播放器 User-Agent 换取对应的 115 CDN 直链（用于 115 防盗链白名单校验）。
+func (c *OpenClient) GetDownloadURLWithUA(ctx context.Context, pickCode, ua string) (string, error) {
+	ua = strings.TrimSpace(ua)
+	if cached := GetDownloadURLCache(pickCode, ua); cached != "" {
 		return cached, nil
 	}
 	params := map[string]string{"pick_code": pickCode}
-	resp, err := c.doAuthJSON(ctx, "POST", ProAPIBase+"/open/ufile/downurl", params, 1)
+	resp, err := c.doAuthJSONWithUA(ctx, "POST", ProAPIBase+"/open/ufile/downurl", params, 1, ua)
 	if err != nil {
 		return "", err
 	}
@@ -143,7 +221,7 @@ func (c *OpenClient) GetDownloadURL(ctx context.Context, pickCode string) (strin
 	if first.URL.URL == "" {
 		return "", fmt.Errorf("115: 下载地址为空（文件可能未上传完成或已被删除）")
 	}
-	SetDownloadURLCache(pickCode, first.URL.URL)
+	SetDownloadURLCache(pickCode, first.URL.URL, ua)
 	return first.URL.URL, nil
 }
 

internal/service/cloud115/oss_multipart.go

@@ -0,0 +1,367 @@
+// 阿里云 OSS multipart 分片上传（用于 115 元数据上传直传）。
+// 使用 115 下发的临时 STS 凭证，将本地文件分片上传到 OSS，并经 complete 回调
+// 通知 115 完成落盘。参考 QMediaSync 的 OSSMultipartUploader 实现。
+package cloud115
+
+import (
+	"context"
+	"encoding/base64"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"io"
+	"os"
+	"sort"
+
+	"github.com/aliyun/alibabacloud-oss-go-sdk-v2/oss"
+	"github.com/aliyun/alibabacloud-oss-go-sdk-v2/oss/credentials"
+)
+
+const (
+	defaultMultipartPartSize int64 = 32 * 1024 * 1024
+	multipartPartAlign       int64 = 1024 * 1024
+	maxMultipartParts        int64 = 9999
+	maxMultipartPartSize     int64 = 5 * 1024 * 1024 * 1024
+)
+
+type ossMultipartClient interface {
+	InitiateMultipartUpload(context.Context, *oss.InitiateMultipartUploadRequest, ...func(*oss.Options)) (*oss.InitiateMultipartUploadResult, error)
+	UploadPart(context.Context, *oss.UploadPartRequest, ...func(*oss.Options)) (*oss.UploadPartResult, error)
+	ListParts(context.Context, *oss.ListPartsRequest, ...func(*oss.Options)) (*oss.ListPartsResult, error)
+	CompleteMultipartUpload(context.Context, *oss.CompleteMultipartUploadRequest, ...func(*oss.Options)) (*oss.CompleteMultipartUploadResult, error)
+	AbortMultipartUpload(context.Context, *oss.AbortMultipartUploadRequest, ...func(*oss.Options)) (*oss.AbortMultipartUploadResult, error)
+}
+
+// OSSMultipartUploader 封装 OSS multipart 上传。
+type OSSMultipartUploader struct {
+	client ossMultipartClient
+}
+
+// OSSMultipartUploadInput 是 multipart 上传输入。
+type OSSMultipartUploadInput struct {
+	Bucket        string
+	Object        string
+	Callback      string
+	CallbackVar   string
+	FilePath      string
+	FileSize      int64
+	UploadId      string
+	PartSize      int64
+	PartRetryMax  int
+	refreshClient func(context.Context) (ossMultipartClient, error)
+}
+
+// OSSMultipartUploadResult 是 multipart 上传后的结果。
+type OSSMultipartUploadResult struct {
+	CallbackResult map[string]any
+	UploadId       string
+	PartSize       int64
+	TotalParts     int
+	UploadedBytes  int64
+	UploadedParts  int
+}
+
+// CalculateMultipartPartSize 计算 OSS multipart 分片大小与分片数量。
+func CalculateMultipartPartSize(fileSize int64) (int64, int, error) {
+	if fileSize < 0 {
+		return 0, 0, fmt.Errorf("文件大小不能为负数：%d", fileSize)
+	}
+	partSize := defaultMultipartPartSize
+	minPartSize := ceilDiv(fileSize, maxMultipartParts)
+	if minPartSize > partSize {
+		partSize = roundUp(minPartSize, multipartPartAlign)
+	}
+	if partSize > maxMultipartPartSize {
+		return 0, 0, fmt.Errorf("文件过大，所需分片大小 %d 超过 OSS 上限 %d", partSize, maxMultipartPartSize)
+	}
+	totalParts := int(ceilDiv(fileSize, partSize))
+	if totalParts == 0 {
+		totalParts = 1
+	}
+	if int64(totalParts) > maxMultipartParts {
+		return 0, 0, fmt.Errorf("分片数量 %d 超过上限 %d", totalParts, maxMultipartParts)
+	}
+	return partSize, totalParts, nil
+}
+
+// NewOSSMultipartUploader 创建 OSS multipart 上传器。
+func NewOSSMultipartUploader(endpoint, accessKeyId, accessKeySecret, securityToken string) *OSSMultipartUploader {
+	return &OSSMultipartUploader{client: newOSSMultipartClient(endpoint, accessKeyId, accessKeySecret, securityToken)}
+}
+
+func newOSSMultipartClient(endpoint, accessKeyId, accessKeySecret, securityToken string) ossMultipartClient {
+	cfg := oss.LoadDefaultConfig().
+		WithCredentialsProvider(credentials.NewStaticCredentialsProvider(accessKeyId, accessKeySecret, securityToken)).
+		WithRegion("cn-shenzhen").
+		WithEndpoint(endpoint)
+	return oss.NewClient(cfg)
+}
+
+// UploadFile 上传文件并完成 OSS multipart，返回 complete callback 结果。
+func (u *OSSMultipartUploader) UploadFile(ctx context.Context, input OSSMultipartUploadInput) (map[string]any, error) {
+	result, err := u.UploadFileWithResult(ctx, input)
+	if err != nil {
+		return nil, err
+	}
+	return result.CallbackResult, nil
+}
+
+// UploadFileWithResult 上传文件并返回 multipart 结果。
+func (u *OSSMultipartUploader) UploadFileWithResult(ctx context.Context, input OSSMultipartUploadInput) (OSSMultipartUploadResult, error) {
+	if input.PartRetryMax <= 0 {
+		input.PartRetryMax = 3
+	}
+	partSize := input.PartSize
+	totalParts := 0
+	var err error
+	if partSize <= 0 {
+		partSize, totalParts, err = CalculateMultipartPartSize(input.FileSize)
+		if err != nil {
+			return OSSMultipartUploadResult{}, err
+		}
+	} else {
+		totalParts = int(ceilDiv(input.FileSize, partSize))
+	}
+
+	uploadId := input.UploadId
+	if uploadId == "" {
+		initResult, err := u.client.InitiateMultipartUpload(ctx, &oss.InitiateMultipartUploadRequest{
+			Bucket: oss.Ptr(input.Bucket),
+			Key:    oss.Ptr(input.Object),
+			RequestCommon: oss.RequestCommon{
+				Parameters: map[string]string{"sequential": "1"},
+			},
+		})
+		if err != nil {
+			return OSSMultipartUploadResult{}, fmt.Errorf("初始化 OSS multipart 失败：%w", err)
+		}
+		if initResult.UploadId == nil || *initResult.UploadId == "" {
+			return OSSMultipartUploadResult{}, fmt.Errorf("初始化 OSS multipart 返回空 upload_id")
+		}
+		uploadId = *initResult.UploadId
+	}
+
+	existingPartMap := make(map[int32]int64)
+	existingParts, err := u.ListUploadedParts(ctx, input.Bucket, input.Object, uploadId)
+	if err == nil {
+		for _, part := range existingParts {
+			existingPartMap[part.PartNumber] = part.Size
+		}
+	}
+
+	file, err := os.Open(input.FilePath)
+	if err != nil {
+		return OSSMultipartUploadResult{}, fmt.Errorf("打开待上传文件失败：%w", err)
+	}
+	defer file.Close()
+
+	var uploadedBytes int64
+	uploadedParts := 0
+	completeParts := make([]oss.UploadPart, 0, totalParts)
+	for partNumber := 1; partNumber <= totalParts; partNumber++ {
+		offset := int64(partNumber-1) * partSize
+		length := minInt64(partSize, input.FileSize-offset)
+		if length < 0 {
+			length = 0
+		}
+		if existingSize, ok := existingPartMap[int32(partNumber)]; ok && existingSize == length {
+			uploadedBytes += length
+			uploadedParts++
+		}
+		etag, err := u.uploadPartWithRetry(ctx, input, uploadId, int32(partNumber), file, offset, length)
+		if err != nil {
+			return OSSMultipartUploadResult{}, err
+		}
+		uploadedBytes += length
+		uploadedParts++
+		completeParts = append(completeParts, oss.UploadPart{
+			PartNumber: int32(partNumber),
+			ETag:       oss.Ptr(etag),
+		})
+	}
+	sort.Slice(completeParts, func(i, j int) bool {
+		return completeParts[i].PartNumber < completeParts[j].PartNumber
+	})
+
+	// 115 下发的 callback / callback_var 是 JSON 字符串，而 OSS CompleteMultipartUpload
+	// 要求 callback 参数为 Base64 编码后的 JSON，否则报 "The callback configuration is
+	// not base64 encoded"。这里把两者转为 Base64 后再提交（参考 QMediaSync 的
+	// BuildOSSCallbackHeaders）。
+	cb := input.Callback
+	cbVar := input.CallbackVar
+	if cb == "" {
+		return OSSMultipartUploadResult{}, errors.New("OSS callback 为空")
+	}
+	if !json.Valid([]byte(cb)) {
+		return OSSMultipartUploadResult{}, errors.New("解析 callback 失败：不是合法 JSON")
+	}
+	if cbVar == "" {
+		cbVar = "{}"
+	}
+	if !json.Valid([]byte(cbVar)) {
+		return OSSMultipartUploadResult{}, errors.New("解析 callback_var 失败：不是合法 JSON")
+	}
+	completeResult, err := u.client.CompleteMultipartUpload(ctx, &oss.CompleteMultipartUploadRequest{
+		Bucket:   oss.Ptr(input.Bucket),
+		Key:      oss.Ptr(input.Object),
+		UploadId: oss.Ptr(uploadId),
+		CompleteMultipartUpload: &oss.CompleteMultipartUpload{
+			Parts: completeParts,
+		},
+		Callback:    oss.Ptr(base64.StdEncoding.EncodeToString([]byte(cb))),
+		CallbackVar: oss.Ptr(base64.StdEncoding.EncodeToString([]byte(cbVar))),
+	})
+	if err != nil {
+		return OSSMultipartUploadResult{}, fmt.Errorf("完成 OSS multipart 失败：%w", err)
+	}
+	return OSSMultipartUploadResult{
+		CallbackResult: completeResult.CallbackResult,
+		UploadId:       uploadId,
+		PartSize:       partSize,
+		TotalParts:     totalParts,
+		UploadedBytes:  uploadedBytes,
+		UploadedParts:  uploadedParts,
+	}, nil
+}
+
+// ListUploadedParts 查询 OSS 已上传分片。
+func (u *OSSMultipartUploader) ListUploadedParts(ctx context.Context, bucket, object, uploadId string) ([]struct {
+	PartNumber int32
+	Size       int64
+}, error) {
+	parts := []struct {
+		PartNumber int32
+		Size       int64
+	}{}
+	result, err := u.client.ListParts(ctx, &oss.ListPartsRequest{
+		Bucket:   oss.Ptr(bucket),
+		Key:      oss.Ptr(object),
+		UploadId: oss.Ptr(uploadId),
+		MaxParts: 1000,
+	})
+	if err != nil {
+		return nil, fmt.Errorf("查询 OSS 已上传分片失败：%w", err)
+	}
+	for _, part := range result.Parts {
+		parts = append(parts, struct {
+			PartNumber int32
+			Size       int64
+		}{PartNumber: part.PartNumber, Size: part.Size})
+	}
+	return parts, nil
+}
+
+func (u *OSSMultipartUploader) uploadPartWithRetry(
+	ctx context.Context,
+	input OSSMultipartUploadInput,
+	uploadId string,
+	partNumber int32,
+	file *os.File,
+	offset, length int64,
+) (string, error) {
+	var lastErr error
+	for attempt := 0; attempt < input.PartRetryMax; attempt++ {
+		reader := io.NewSectionReader(file, offset, length)
+		result, err := u.client.UploadPart(ctx, &oss.UploadPartRequest{
+			Bucket:        oss.Ptr(input.Bucket),
+			Key:           oss.Ptr(input.Object),
+			PartNumber:    partNumber,
+			UploadId:      oss.Ptr(uploadId),
+			Body:          reader,
+			ContentLength: oss.Ptr(length),
+		})
+		if err == nil {
+			if result.ETag == nil || *result.ETag == "" {
+				return "", fmt.Errorf("OSS part %d 返回空 ETag", partNumber)
+			}
+			return *result.ETag, nil
+		}
+		lastErr = err
+		if attempt < input.PartRetryMax-1 && input.refreshClient != nil {
+			refreshed, refreshErr := input.refreshClient(ctx)
+			if refreshErr != nil {
+				lastErr = refreshErr
+				continue
+			}
+			u.client = refreshed
+		}
+	}
+	return "", fmt.Errorf("上传 OSS part %d 失败：%w", partNumber, lastErr)
+}
+
+// ParseCompleteCallbackResult 校验并解析 OSS complete 后的 115 callback 结果。
+func ParseCompleteCallbackResult(result map[string]any) (UploadCompleteResult, error) {
+	if result == nil {
+		return UploadCompleteResult{}, errors.New("OSS complete callback 结果为空")
+	}
+	if state, ok := result["state"].(bool); ok && !state {
+		return UploadCompleteResult{}, fmt.Errorf("115 callback 返回失败：%s", anyToString(result["message"]))
+	}
+	if message := anyToString(result["message"]); message != "" {
+		return UploadCompleteResult{}, fmt.Errorf("115 callback 返回错误：%s", message)
+	}
+	data, ok := result["data"].(map[string]any)
+	if !ok {
+		return UploadCompleteResult{}, errors.New("115 callback 缺少 data")
+	}
+	complete := UploadCompleteResult{
+		FileId:   anyToString(data["file_id"]),
+		PickCode: anyToString(data["pick_code"]),
+		ParentId: anyToString(data["parent_id"]),
+		Sha1:     anyToString(data["sha1"]),
+		Size:     anyToInt64(data["size"]),
+		Mtime:    anyToInt64(data["mtime"]),
+	}
+	if complete.FileId == "" || complete.PickCode == "" {
+		return UploadCompleteResult{}, errors.New("115 callback 缺少 file_id/pick_code")
+	}
+	return complete, nil
+}
+
+func ceilDiv(n, d int64) int64 {
+	if d <= 0 {
+		return 0
+	}
+	if n <= 0 {
+		return 0
+	}
+	return (n + d - 1) / d
+}
+
+func roundUp(n, align int64) int64 {
+	if align <= 0 {
+		return n
+	}
+	return ceilDiv(n, align) * align
+}
+
+func minInt64(a, b int64) int64 {
+	if a < b {
+		return a
+	}
+	return b
+}
+
+func anyToInt64(v any) int64 {
+	switch t := v.(type) {
+	case string:
+		var n int64
+		fmt.Sscanf(t, "%d", &n)
+		return n
+	case float64:
+		return int64(t)
+	case int64:
+		return t
+	case int:
+		return int64(t)
+	default:
+		return 0
+	}
+}
+
+func anyToString(v any) string {
+	if s, ok := v.(string); ok {
+		return s
+	}
+	return fmt.Sprintf("%v", v)
+}

internal/service/cloud115/queue_executor.go

@@ -26,10 +26,15 @@ var (
 	executorOnce   sync.Once
 )
 
-// GetGlobalExecutor 获取全局队列执行器单例（默认 QPS=2, QPM=120, QPH=6000，保障 115 API 调用安全不超频）。
+// GetGlobalExecutor 获取全局队列执行器单例（默认 QPS=3, QPM=200, QPH=12000，保障 115 API 调用安全不超频）。
+//
+// 历史教训：QPS 提到 8 后，下载换直链接口（/open/ufile/downurl，WAF 重点盯防对象）
+// 瞬时突发撞上 115 风控，返回阿里云 405 阻断页（HTTP 405），导致全量同步失败。
+// 因此回调到 3——这是经过实测的安全上限：宁慢勿触发风控，一旦 405 冷却 180 秒，
+// 整体吞吐反而更低。下载实际走 CDN 不受此限速影响，瓶颈仅在换链环节。
 func GetGlobalExecutor() *QueueExecutor {
 	executorOnce.Do(func() {
-		globalExecutor = NewQueueExecutor(2, 120, 6000)
+		globalExecutor = NewQueueExecutor(3, 200, 12000)
 	})
 	return globalExecutor
 }