{"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-wq2gqewd","versions":[{"created_at":"2026-06-04T05:52:45Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 94.6→94.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"4025115d4f75a419a54fba8e0e1e36f13574bf25295fd8156579616b2c0d3b6f","version":10},{"created_at":"2026-06-04T04:59:32Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 35.0→94.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"2304dd21f225340307160b87c3ba6670ff90eea3e47ac0561e27a02370b2b8da","version":9},{"created_at":"2026-06-04T04:59:32Z","element_count":19,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"e927905aaf02b6b78c64d0f4ab40ae3464b9e214e55d1e2416f0f0df3add472e","version":8}]}