{"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-0skw55ut","versions":[{"created_at":"2026-06-04T05:50:43Z","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":"f928bbf380160f293a0992fb120dde1fa42577df1014abcbbca46361baff5dc9","version":10},{"created_at":"2026-06-04T04:57:24Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 47.1→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":"445751db19bb12acae0264bb562138941a49eaaa21693fd9c8a6d3962b786a81","version":9},{"created_at":"2026-06-04T04:57:24Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"d69a9b543e0922613544b1071631c39a7c9c49a632aca1027dd15dd680d91a9b","version":8}]}