- Add POST /avatars/{id}/upload-photo endpoint
- Use Huihui platform's filecenter API for image upload (same signing mechanism as news_service)
- Add upload button in avatar list table
- Frontend: handleUploadPhoto function with el-upload component
- Updates avatar photo_url in SQLite after successful upload
- Add avatars list page with pagination, search, status filter
- Add avatar detail dialog showing full info and config params
- Add on/off switch (active/inactive status toggle)
- Backend: avatar_service.py connects to digital avatar SQLite
- Backend: /api/avatars endpoints for list, detail, status update
- Sidebar menu item added below dashboard
- docker-compose: mount SQLite db and set AVATAR_DB_PATH env var
stefanfeng