{"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-3n6f0j1w","versions":[{"created_at":"2026-06-04T05:54:45Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 93.6→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":"0f4f361b71f5a9e7b56210a6741d5aa5d7ed8ec6c909f4218315c0657ac1e642","version":10},{"created_at":"2026-06-04T04:59:33Z","element_count":72,"note":"GA batch-improve 2026-06-04: 総合 34.9→93.6 (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 93.6 (美 93 環 100 楽 100))","saved_by":"editor","sha256":"400adc6675e9dbf849d02486f49b270e609e8a5f3e4f82856200cacb1e22337f","version":9},{"created_at":"2026-06-04T04:59:33Z","element_count":17,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"be46c1e4b08d45e89b549eee4ea2de48ddc27cba9bca6452e43d4d9553468a37","version":8}]}