{"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-hqlcwhqm","versions":[{"created_at":"2026-06-04T05:50:59Z","element_count":99,"note":"GA diverse re-design 2026-06-04: 総合 99.3→99.3 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 99.3 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"8a2777a933f72dede77741f7bb1ad9cc1cc2ec170ae9316d18aabe120a839f52","version":10},{"created_at":"2026-06-04T04:58:33Z","element_count":99,"note":"GA batch-improve 2026-06-04: 総合 43.1→99.3 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 99.3 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"e7dcaa812a05d0216c338aae4a5ed6c558529a3bd559bf9fc88a0cf59c429532","version":9},{"created_at":"2026-06-04T04:58:33Z","element_count":29,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"03bdd679fd9021f3af9f198a1846f8bd186ebf09e7fb7dceed2bb692bf231d2b","version":8}]}