{"ok":true,"service":"益师库后端","mode":"oss","endpoints":["GET /topics","POST /topics","POST /topics/:id/replies","POST /replies/:rid/like","GET /skills","POST /skills","GET /skills/:id/file (需登录)","POST /skills/:id/update","POST /skills/:id/delete","POST /auth/send-code","POST /auth/login","POST /auth/set-password","GET /auth/me","POST /auth/logout","GET /changes","POST /subscribe","POST /unsubscribe","GET /stats","GET /health"]}