{"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-cqa4zx69","versions":[{"created_at":"2026-06-04T05:52:50Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 94.6→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":"05a23daa68d335f0be88a820fd6ee950b9fc80fe6da8e43f6e28f0f954737f0c","version":10},{"created_at":"2026-06-04T04:55:48Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 59.2→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":"74026474a6d4bb009a7f7e2450d89ee7270e7b1e28d00cf729d8964e989314a4","version":9},{"created_at":"2026-06-04T04:55:48Z","element_count":24,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"ce5945d04766eccaba8d06cd44fb2ca2399e15113a44476bb12e784a7904f151","version":8}]}