{
  "status": "healthy",
  "worker": "market-worker",
  "version": "1.0.0",
  "timestamp": "2026-09-20T07:59:26.376Z",
  "checks": {
    "kv": {
      "status": "healthy",
      "latencyMs": 93,
      "message": "初期化完了済み"
    },
    "db": {
      "status": "healthy",
      "latencyMs": 155,
      "message": "正常接続"
    }
  }
}