{"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-ejjzhw4w","versions":[{"created_at":"2026-06-04T05:50:45Z","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":"d452d508c4ca8061c084ab669e473d666064ad892cf845f308868cf7fc075a5a","version":10},{"created_at":"2026-06-04T04:58:30Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 43.5→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":"628499eaa4de27f1f52a751ff91803998050a399a1a98fce5f4062adee5a51d6","version":9},{"created_at":"2026-06-04T04:58:30Z","element_count":29,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"0c956d488e75eed0fef09d1b13820a701663bf1d18aaff39a1ab24452e5c6422","version":8}]}