{"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-isp5tdrw","versions":[{"created_at":"2026-06-04T06:04:19Z","element_count":99,"note":"GA diverse final 2026-06-04: 総合 89.7→99.8 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 99.8 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"d442428c164e7218535b44a5bb85c024eb16e4ddebc694f56f58f40c6b16b6e5","version":11},{"created_at":"2026-06-04T05:51:58Z","element_count":55,"note":"GA diverse re-design 2026-06-04: 総合 97.3→89.7 (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 89.7 (美 94 環 100 楽 91))","saved_by":"editor","sha256":"e4ea47fc98eff60b7d031c38387588ea8ebfeecdeb6196393c74c9f6b6d45399","version":10},{"created_at":"2026-06-04T04:55:23Z","element_count":102,"note":"GA batch-improve 2026-06-04: 総合 61.8→97.3 (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 97.3 (美 92 環 100 楽 100))","saved_by":"editor","sha256":"2de17adcb557129f14bfdb33c1c47a7ccb8109bc05d0f5af263999c186f51948","version":9},{"created_at":"2026-06-04T04:55:23Z","element_count":29,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"363310cbd2e725d66a683dec24cf4a87cca14fceb9401ae64143ad67859da09f","version":8}]}