Integrate Qiniu upload service and update configuration

- Added Qiniu configuration options to .env.example and config.go for file uploads.
- Refactored main.go to include new Qiniu service and upload handler.
- Updated route registration to accommodate the new upload handler.
- Enhanced documentation to include references for Qiniu upload functionality.
- Removed legacy authentication handler and services to streamline the codebase.

internal/routes/common_routes.go

@@ -0,0 +1,16 @@
+package routes
+
+import (
+	"github.com/gin-gonic/gin"
+
+	commonhandler "wx_service/internal/common/handler"
+)
+
+func registerCommonRoutes(protected *gin.RouterGroup, uploadHandler *commonhandler.UploadHandler) {
+	// 公共接口（所有小程序共用）
+	common := protected.Group("/common")
+	{
+		// 七牛直传凭证：前端先拿 token，再直传文件到七牛 upload_url
+		common.POST("/upload/qiniu/token", uploadHandler.QiniuToken)
+	}
+}

internal/routes/routes.go

@@ -6,7 +6,8 @@ import (
 	"github.com/gin-gonic/gin"
 	"gorm.io/gorm"
 
-	"wx_service/internal/handler"
+	authhandler "wx_service/internal/common/auth/handler"
+	commonhandler "wx_service/internal/common/handler"
 	"wx_service/internal/middleware"
 	rmhandler "wx_service/internal/remove_watermark/handler"
 	smokehandler "wx_service/internal/smoke/handler"
@@ -15,9 +16,10 @@ import (
 func Register(
 	router *gin.Engine,
 	db *gorm.DB,
-	authHandler *handler.AuthHandler,
+	authHandler *authhandler.AuthHandler,
 	videoHandler *rmhandler.VideoHandler,
 	smokeHandler *smokehandler.SmokeHandler,
+	uploadHandler *commonhandler.UploadHandler,
 ) {
 	// Register 用来集中注册所有 HTTP 路由，便于工程结构更清晰：
 	// - main 只负责初始化（配置/DB/依赖注入）
@@ -31,6 +33,7 @@ func Register(
 		protected := api.Group("")
 		protected.Use(middleware.AuthMiddleware(db))
 		{
+			registerCommonRoutes(protected, uploadHandler)
 			registerRemoveWatermarkRoutes(protected, videoHandler)
 			registerSmokeRoutes(protected, smokeHandler)
 		}