Refactor Qiniu upload integration and remove legacy handlers

- Replaced common upload handler and service with Qiniu-specific implementations in main.go and route registration.
- Deleted outdated upload_handler.go and qiniu_service.go files to streamline the codebase.
- Updated route definitions to utilize the new Qiniu upload handler for improved file upload management.

cmd/api/main.go

@@ -8,8 +8,8 @@ import (
 	"wx_service/config"
 	authhandler "wx_service/internal/common/auth/handler"
 	authservice "wx_service/internal/common/auth/service"
-	commonhandler "wx_service/internal/common/handler"
-	commonservice "wx_service/internal/common/service"
+	qiniuhandler "wx_service/internal/common/qiniu/handler"
+	qiniuservice "wx_service/internal/common/qiniu/service"
 	"wx_service/internal/database"
 	"wx_service/internal/model"
 	rmhandler "wx_service/internal/remove_watermark/handler"
@@ -57,8 +57,8 @@ func main() {
 	smokeLogService := smokeservice.NewSmokeLogService(database.DB)
 	smokeHandler := smokehandler.NewSmokeHandler(smokeLogService)
 
-	qiniuService := commonservice.NewQiniuService(config.AppConfig.Qiniu)
-	uploadHandler := commonhandler.NewUploadHandler(qiniuService)
+	qiniuService := qiniuservice.NewQiniuService(config.AppConfig.Qiniu)
+	uploadHandler := qiniuhandler.NewUploadHandler(qiniuService)
 
 	// 6) 注册路由：把 URL 映射到 handler
 	routes.Register(router, database.DB, authHandler, videoHandler, smokeHandler, uploadHandler)