{"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-t7wmi14q","versions":[{"created_at":"2026-06-04T17:00:25Z","element_count":62,"note":"polish: batch-improve-100 2026-06-04 (92.4->99.8)","saved_by":"editor","sha256":"9a7a6b8e821a743d9f560a78e63ac3d44095851213fca2a5ec43b09d002e6942","version":11},{"created_at":"2026-06-04T05:54:46Z","element_count":55,"note":"GA diverse re-design 2026-06-04: 総合 93.6→92.4 (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 92.4 (美 95 環 100 楽 91))","saved_by":"editor","sha256":"cec6bf0fa43576184ce46fd1cac10f2afba7b5f0a40d20f7a318b1003171672a","version":10},{"created_at":"2026-06-04T04:57:10Z","element_count":72,"note":"GA batch-improve 2026-06-04: 総合 48.1→93.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 南面サンルーム / 適応度 93.6 (美 93 環 100 楽 100))","saved_by":"editor","sha256":"9fe0e8425ee3ae82c91ac54a3b1fa9f11f956b28e95a2231d541174556c89f61","version":9},{"created_at":"2026-06-04T04:57:10Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"a0f15c5d37a1a6dd540ff88cf69880395eee49ffc80573913902a4484691b1f7","version":8}]}