feat: add image upload functionality for articles

- Implemented image upload API in the article service, allowing users to upload images associated with articles.
- Added validation for image size and type, ensuring only supported formats (PNG, JPG, GIF, WebP) are accepted.
- Created a new Aliyun object storage client to handle image storage and retrieval.
- Updated the article handler to include an endpoint for image uploads.
- Enhanced error handling for image upload failures and added relevant error messages.
- Introduced public URL generation for stored images, allowing access via signed tokens.
- Updated localization files to include new messages related to image upload functionality.
- Added tests for image upload and retrieval processes.

server/internal/tenant/transport/router.go

@@ -12,6 +12,9 @@ func RegisterRoutes(app *bootstrap.App) {
 	authAPI.POST("/login", authHandler.Login)
 	authAPI.POST("/refresh", authHandler.Refresh)
 
+	publicAssets := NewAssetHandler(app)
+	app.Engine.GET("/api/public/assets/:token", publicAssets.Serve)
+
 	pluginHandler := NewMediaHandler(app)
 	callbacks := app.Engine.Group("/api/callback/plugin")
 	callbacks.POST("/bind", pluginHandler.PluginBindCallback)
@@ -48,6 +51,7 @@ func RegisterRoutes(app *bootstrap.App) {
 	artHandler := NewArticleHandler(app)
 	articles.GET("", artHandler.List)
 	articles.POST("/generate-from-rule", artHandler.GenerateFromRule)
+	articles.POST("/:id/images", artHandler.UploadImage)
 	articles.GET("/:id", artHandler.Detail)
 	articles.PUT("/:id", artHandler.Update)
 	articles.GET("/:id/stream", artHandler.Stream)