{"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-p6ctw9lr","versions":[{"created_at":"2026-06-04T05:50:15Z","element_count":98,"note":"GA diverse re-design 2026-06-04: 総合 99.5→99.5 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.5 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"54b9a104cef55dfc61e7af97a50f876a628af9df277b28d791f933c84ad304d4","version":10},{"created_at":"2026-06-04T04:52:43Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 74.8→99.5 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.5 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"2b63b067f3afcd31dae9a8487284ff36bf1ddb98dadf8ffd92b04785ead89ab6","version":9},{"created_at":"2026-06-04T04:52:42Z","element_count":31,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"aafaefb6f680e18b8185fdddd1b009b28e54a5522445815a841a4d88afd99cbf","version":8}]}