{"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-6fzyewa5","versions":[{"created_at":"2026-06-04T05:51:22Z","element_count":99,"note":"GA diverse re-design 2026-06-04: 総合 98.6→98.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 98.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"26ada1c7148efd60943934f1dc802aa2ede3910c3c4e2ffc366553e8fa083237","version":10},{"created_at":"2026-06-04T04:53:11Z","element_count":99,"note":"GA batch-improve 2026-06-04: 総合 71.6→98.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 98.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"bf43442b4a5e5d78fb3c65b2ce73fddff34670c19007f7aadd70b36f834211ae","version":9},{"created_at":"2026-06-04T04:53:11Z","element_count":32,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"9b80d472cca479798658bea3e39d2e67c35abfd526bada789d1752b0019dc99f","version":8}]}