{"note":"bim_versions 導入後の保存のみ記録 (それ以前は bim_canonical 上書きで履歴なし)","ok":true,"slug":"u-house-7x6enu2h","versions":[{"created_at":"2026-06-04T17:00:32Z","element_count":62,"note":"polish: batch-improve-100 2026-06-04 (92.1->99.3)","saved_by":"editor","sha256":"0f15e3ff978ddc6fcc41054868b4dbe6c2b6827abbbc3ddf1f3abd8cf6455bfa","version":5},{"created_at":"2026-06-04T05:53:36Z","element_count":55,"note":"GA diverse re-design 2026-06-04: 総合 94.2→92.1 (総2階(箱)・吹抜 縁側 ピアノ室 PV 雨水 天窓 南面サンルーム / 適応度 92.1 (美 95 環 100 楽 91))","saved_by":"editor","sha256":"5c30cf339611e78298e102861c72e99b0d71c45f15d75bef90b3e59a23f7d121","version":4},{"created_at":"2026-06-04T04:53:49Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 68.7→94.2 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.2 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"70c0be426217f67edd13de2aac84469c2b25cc13dea7ebef95f538bdcc572076","version":3},{"created_at":"2026-06-04T04:53:49Z","element_count":64,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"511c9c334591c986f5522cfd31d8090810b5c91b534371a5f5749b249b7397aa","version":2}]}