{"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-2-ofb31lyl","versions":[{"created_at":"2026-06-04T05:51:32Z","element_count":98,"note":"GA diverse re-design 2026-06-04: 総合 98.2→99.8 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.8 (美 99 環 100 楽 100))","saved_by":"editor","sha256":"04d99d93e86083606c71a0913b5d493e7fca2a3dd26c28432622b6f819ff6be3","version":10},{"created_at":"2026-06-04T04:55:11Z","element_count":101,"note":"GA batch-improve 2026-06-04: 総合 62.7→98.2 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 南面サンルーム / 適応度 98.2 (美 95 環 100 楽 100))","saved_by":"editor","sha256":"c4b760a7da49fdcfda96747afd86b45e0c524c7ce187dd608e209d2e51905945","version":9},{"created_at":"2026-06-04T04:55:11Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"6fe60180465494a671d5b6e4299588b7ece99d41ccd5b2f06b085c0fcaaf2281","version":8}]}