{"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-j2imbvgo","versions":[{"created_at":"2026-06-04T05:50:57Z","element_count":99,"note":"GA diverse re-design 2026-06-04: 総合 99.3→99.3 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 99.3 (美 100 環 99 楽 100))","saved_by":"editor","sha256":"09bba9a9539b80fa2f3d444a94c2fe678a10e2713c0aec1c761255309d716299","version":10},{"created_at":"2026-06-04T04:53:06Z","element_count":99,"note":"GA batch-improve 2026-06-04: 総合 71.9→99.3 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 99.3 (美 100 環 99 楽 100))","saved_by":"editor","sha256":"7a98818bb3e6a13f957896550474b36de52af6917488502705428edc963743fb","version":9},{"created_at":"2026-06-04T04:53:06Z","element_count":32,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"982ddaaf0320767cf345344a8f8387ef42e42e061d6ca61231f76155644018e8","version":8}]}