{"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-9t7u53l3","versions":[{"created_at":"2026-06-04T05:49:41Z","element_count":98,"note":"GA diverse re-design 2026-06-04: 総合 99.8→99.8 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.8 (美 99 環 100 楽 100))","saved_by":"editor","sha256":"768d55b9c47248f641e9ccf15d28e92b34dfe9126644669fb6c53c42fbad7bb5","version":10},{"created_at":"2026-06-04T04:54:03Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 67.7→99.8 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.8 (美 99 環 100 楽 100))","saved_by":"editor","sha256":"110f54746e0e5210f05373c80963ecf58b41d62d6320ce9842e440f36b4b070d","version":9},{"created_at":"2026-06-04T04:54:03Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"ed24723b41f630ff4c8063a9881f200ff32b2531f80666040cce508bbf65691a","version":8}]}