{"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-tghnvgl8","versions":[{"created_at":"2026-06-04T05:50:41Z","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":"689dfaa73789fc97839cf923a2062ee442029eb2845d3e14d55c0f9faea4a7c5","version":10},{"created_at":"2026-06-04T04:57:37Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 46.5→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":"584e0ee5608d114bf53d9bf5ef78190f05e84124ddf063d9317908cce74560b6","version":9},{"created_at":"2026-06-04T04:57:37Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"5989498a651a24dcd4e693e03c2208ed24e57603ca0020279b69a171199c4f66","version":8}]}