{"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-engawahousev3kennyre-kaf9v1cr","versions":[{"created_at":"2026-06-04T05:52:20Z","element_count":99,"note":"GA diverse re-design 2026-06-04: 総合 95.4→97.3 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 97.3 (美 100 環 99 楽 100))","saved_by":"editor","sha256":"f0e27c1e05d834b55252d94c76912be6da0cba40b0f7eba44f62bb24675a8534","version":4},{"created_at":"2026-06-04T04:59:46Z","element_count":102,"note":"GA batch-improve 2026-06-04: 総合 7.8→95.4 (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 95.4 (美 94 環 99 楽 100))","saved_by":"editor","sha256":"f2c1e881a902ae00bbacacff9b23c7acf1e86d547c2477886107fcd07ff24a53","version":3},{"created_at":"2026-06-04T04:59:46Z","element_count":34,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"69a563667f99cc0c84d1951dedc2cb61ccdf4e70856f0c7e8f6781482943b268","version":2}]}