{
  "status": "ok",
  "service": "Yainn Camera Server (Node.js)",
  "endpoints": [
    "GET  /ping             — 健康检查",
    "GET  /debug            — 服务器诊断信息",
    "PUT  /upload           — 流式上传视频 (推荐, query参数传元数据)",
    "POST /upload           — multipart上传视频 (兼容旧客户端)",
    "GET  /list?device_id=x — 获取某设备的录像列表",
    "GET  /stream?device_id=x — 流式播放某设备最新录像",
    "GET  /download?device_id=x&file=y — 下载视频文件",
    "GET  /video_storage/{device}/{file} — 直链播放视频文件"
  ],
  "storage_dir": "/var/www/html/yainncam/server/video_storage"
}