System Health Monitor

{
  "id": 30002,
  "systemName": "trading_floor",
  "checkType": "heartbeat",
  "status": "healthy",
  "responseTimeMs": 45,
  "errorMessage": null,
  "checkedAt": "2026-05-15T14:05:27.000Z",
  "createdAt": "2026-05-15T14:05:27.000Z"
}

{
  "id": 30001,
  "systemName": "trading_floor",
  "checkType": "heartbeat",
  "status": "healthy",
  "responseTimeMs": 45,
  "errorMessage": null,
  "checkedAt": "2026-05-15T14:04:16.000Z",
  "createdAt": "2026-05-15T14:04:16.000Z"
}

{
  "id": 1,
  "systemName": "trading_floor",
  "checkType": "heartbeat",
  "status": "healthy",
  "responseTimeMs": 45,
  "errorMessage": null,
  "checkedAt": "2026-05-15T02:13:07.000Z",
  "createdAt": "2026-05-15T02:13:07.000Z"
}