{"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-42j1qt19","versions":[{"created_at":"2026-06-04T05:50:37Z","element_count":98,"note":"GA diverse re-design 2026-06-04: 総合 99.5→99.5 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.5 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"9ac54c3c24d81db6814c41066aacb6e8752ef8e1b6e966cb0c883b9494399be9","version":11},{"created_at":"2026-06-04T05:03:57Z","element_count":98,"note":"GA batch-improve pass2 2026-06-04: 総合 81.5→99.5 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.5 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"bc90d207ce70137966ecb19c3f78db4b7a625ab93935aa283a716b60240cf658","version":10},{"created_at":"2026-06-04T04:53:40Z","element_count":42,"note":"GA batch-improve 2026-06-04: 総合 69.2→81.5 (中庭ロの字・吹抜 縁側 ロフト ピアノ室 PV 雨水 天窓 / 適応度 81.5 (美 99 環 100 楽 100))","saved_by":"editor","sha256":"ff1540f928ce252465c5df7d48987e8bf31a7d2a21abe96d92d172a85a0a7766","version":9},{"created_at":"2026-06-04T04:53:40Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"36f20a81124088e587a7d26ed089442df6e2c34cef3f27a78daa5ed7dda7701a","version":8}]}