{"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-dbre87cy","versions":[{"created_at":"2026-06-04T05:50:37Z","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":"48f2f1d6ff811ca07e07359624044fc71af8da5db38abd402952d9906ad824ac","version":10},{"created_at":"2026-06-04T04:52:49Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 74.3→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":"675ec17e8b2b77b80ad80803d0107c550f2416ca573631cff5c0eca868bfb6c4","version":9},{"created_at":"2026-06-04T04:52:48Z","element_count":32,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"bc2ccfb70a4f5e46f66144ededb0aa21a968b31df985a56e30eaa31fd73ce433","version":8}]}