{"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-rk8q9agf","versions":[{"created_at":"2026-06-04T16:59:35Z","element_count":77,"note":"polish: batch-improve-100 2026-06-04 (92.0->96.2)","saved_by":"editor","sha256":"85151aaec626f26f317796ff3a201b0977f4295e78d02d40d3896b9763c9de1c","version":11},{"created_at":"2026-06-04T05:55:57Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 92.0→92.0 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 92.0 (美 100 環 97 楽 100))","saved_by":"editor","sha256":"6d318b13331a82befc7c231c69d44612787c198f7e8e489946a16eadfdfeda84","version":10},{"created_at":"2026-06-04T04:54:16Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 66.8→92.0 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 92.0 (美 100 環 97 楽 100))","saved_by":"editor","sha256":"e2b16b0935a9de862b72ef91478017657bdc951f6c0c8a344bd1bfab7b5a427c","version":9},{"created_at":"2026-06-04T04:54:16Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"8d0bfb5c7db4a675f2f3061ab223f4c36d924986f9137da0fa870e847704de04","version":8}]}