{"message":"WebSocket + HTTP 流式代理服务运行正常","timestamp":"2026-04-08T10:45:37.128Z","endpoints":["POST /api/stream - HTTP流式传输","WS /ws - WebSocket流式传输","POST /api/upload/avatar - 头像上传","GET /avatars/:filename - 头像访问","DELETE /api/avatars/:filename - 头像删除"],"activeConnections":0}