feat(server): implement chat file TTL cleanup and enhance JPush vendor channel support

Add FileCleanupWorker for automatic expiration of chat files with configurable retention period and batch processing. Files uploaded via `/api/v1/uploads/files` are tracked in `uploaded_files` table with expiration timestamps, then deleted from S3 and database upon expiry. Expired file URLs are injected as `"expired": true` in message responses.

Extend JPush push notification configuration with vendor-specific channel_id support (xiaomi, huawei, oppo, vivo, meizu, honor, fcm) for differentiating system vs chat notifications. Add iOS APNs thread-id grouping configuration for notification categorization.

cmd/server/app.go

@@ -18,17 +18,18 @@ import (
 
 // App 应用程序结构体
 type App struct {
-	Config          *config.Config
-	DB              *gorm.DB
-	Router          *router.Router
-	PushService     service.PushService
-	HotRankWorker   *service.HotRankWorker
-	GRPCServer      *runner.Server
-	Server          *http.Server
-	Publisher       ws.MessagePublisher
-	TaskDispatcher  runner.TaskDispatcher
-	Logger          *zap.Logger
-	PushWorker      *service.PushWorker
+	Config             *config.Config
+	DB                 *gorm.DB
+	Router             *router.Router
+	PushService        service.PushService
+	HotRankWorker      *service.HotRankWorker
+	FileCleanupWorker  *service.FileCleanupWorker
+	GRPCServer         *runner.Server
+	Server             *http.Server
+	Publisher          ws.MessagePublisher
+	TaskDispatcher     runner.TaskDispatcher
+	Logger             *zap.Logger
+	PushWorker         *service.PushWorker
 }
 
 // NewApp 创建应用程序
@@ -38,6 +39,7 @@ func NewApp(
 	r *router.Router,
 	pushService service.PushService,
 	hotRankWorker *service.HotRankWorker,
+	fileCleanupWorker *service.FileCleanupWorker,
 	grpcServer *runner.Server,
 	publisher ws.MessagePublisher,
 	taskDispatcher runner.TaskDispatcher,
@@ -45,16 +47,17 @@ func NewApp(
 	pushWorker *service.PushWorker,
 ) *App {
 	return &App{
-		Config:          cfg,
-		DB:              db,
-		Router:          r,
-		PushService:     pushService,
-		HotRankWorker:   hotRankWorker,
-		GRPCServer:      grpcServer,
-		Publisher:       publisher,
-		TaskDispatcher:  taskDispatcher,
-		Logger:          logger,
-		PushWorker:      pushWorker,
+		Config:             cfg,
+		DB:                 db,
+		Router:             r,
+		PushService:        pushService,
+		HotRankWorker:      hotRankWorker,
+		FileCleanupWorker:  fileCleanupWorker,
+		GRPCServer:         grpcServer,
+		Publisher:          publisher,
+		TaskDispatcher:     taskDispatcher,
+		Logger:             logger,
+		PushWorker:         pushWorker,
 	}
 }
 
@@ -76,6 +79,11 @@ func (a *App) Start(ctx context.Context) error {
 		a.HotRankWorker.Start(ctx)
 	}
 
+	// 2.1.1 聊天文件过期清理
+	if a.FileCleanupWorker != nil {
+		a.FileCleanupWorker.Start(ctx)
+	}
+
 	// 2.2 启动 PushWorker（Redis Stream 异步推送）
 	if a.PushWorker != nil {
 		a.PushWorker.Start(ctx)
@@ -156,6 +164,11 @@ func (a *App) Stop(ctx context.Context) error {
 		a.HotRankWorker.Stop()
 	}
 
+	if a.FileCleanupWorker != nil {
+		a.Logger.Info("Stopping file cleanup worker")
+		a.FileCleanupWorker.Stop()
+	}
+
 	// 5.1 停止 PushWorker
 	if a.PushWorker != nil {
 		a.Logger.Info("Stopping push worker (stream)")