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.

packages/shared-types/src/index.ts

@@ -273,6 +273,13 @@ export interface UpdateArticleRequest {
   platforms?: string[];
 }
 
+export interface ArticleImageUploadResponse {
+  url: string;
+  object_key: string;
+  content_type: string;
+  size_bytes: number;
+}
+
 export interface ArticleVersion {
   id: number;
   version_no: number;