{"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-t3gsr64m","versions":[{"created_at":"2026-06-04T17:00:53Z","element_count":62,"note":"polish: batch-improve-100 2026-06-04 (92.4->100.0)","saved_by":"editor","sha256":"2cc99e9936e042153daff6333bfa17c5c1ff22b653125f6a5c272cacd182571d","version":11},{"created_at":"2026-06-04T05:52:58Z","element_count":55,"note":"GA diverse re-design 2026-06-04: 総合 94.6→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":"7f3e5869187202e7c9edfb157792d0c0cb5ab157abfb781264ca2f3533158f20","version":10},{"created_at":"2026-06-04T04:59:03Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 38.6→94.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"266b3d0534ff68d62f7d2b4cab68dd7e3ef220d92992e1a9f58c622f45318123","version":9},{"created_at":"2026-06-04T04:59:03Z","element_count":19,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"cba1b1d229c940c214d6d1182bc9f2545ecb69410b9b9885678b396037d753ed","version":8}]}