{"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-jfh3z8wu","versions":[{"created_at":"2026-06-04T05:51:35Z","element_count":99,"note":"GA diverse re-design 2026-06-04: 総合 98.1→98.1 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 98.1 (美 100 環 98 楽 100))","saved_by":"editor","sha256":"c0ce716f03d13abc6f17a05ec7d987aa11e5fdfc12aaf2b0f42a007468201145","version":10},{"created_at":"2026-06-04T04:54:45Z","element_count":99,"note":"GA batch-improve 2026-06-04: 総合 65.5→98.1 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 98.1 (美 100 環 98 楽 100))","saved_by":"editor","sha256":"56c8d52c5704a88fc4321ac5c24e72ec9e08aba2766036fee25b7e09954d63aa","version":9},{"created_at":"2026-06-04T04:54:44Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"a67dd89e25143cb5efe9ad1d872223a58e8045ed0dd22557bd35262b6dc654c4","version":8}]}