{
  "vehicle_id": "vehicle-test-001",
  "vin": "vehicle-test-001",
  "current_release": "vehicle-release-0.0.1",
  "status": "IDLE",
  "available_update": null,
  "last_check_at": "2026-04-21T13:10:57.939089+00:00",
  "last_heartbeat_at": "2026-04-17T10:22:26.626688+00:00",
  "last_result": "心跳上报失败: Client error '401 ' for url 'http://127.0.0.1:8080/api/agent/heartbeat'\nFor more information check: https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/401",
  "updated_at": "2026-04-21T13:10:57.940167+00:00"
}