{"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-ewhoeezn","versions":[{"created_at":"2026-06-04T05:51:56Z","element_count":99,"note":"GA diverse re-design 2026-06-04: 総合 97.4→97.4 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 97.4 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"ac0d9f8813db9d8ee9a4389b948ef1228bbd4d03912c797394d18606d575e6e4","version":10},{"created_at":"2026-06-04T04:58:20Z","element_count":99,"note":"GA batch-improve 2026-06-04: 総合 44.7→97.4 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 97.4 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"9aa46ba862ba73d12bdb06714dbf843807afc7049aba35bb58f37c130364eaa3","version":9},{"created_at":"2026-06-04T04:58:20Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"d423d4d392d353a426e4d90d2b8289e305b784b9d92fbeb6719c65a8463bdb73","version":8}]}