{
  "gate": "conditional",
  "checked_at": "2026-04-20T22:32:08.126Z",
  "summary": "importer packet 基本可用，但当前仍有部分缺口或 cross-mode 信息不完整",
  "checks": [
    {
      "name": "preview_live_artifact_presence",
      "status": "warn",
      "detail": "至少缺一套 importer metrics snapshot，cross-mode integrity 不完整"
    }
  ]
}