{"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-z96axcdk","versions":[{"created_at":"2026-06-04T16:59:46Z","element_count":63,"note":"polish: batch-improve-100 2026-06-04 (92.4->100.0)","saved_by":"editor","sha256":"d491d2b8bd76072162fb949f3c9e4eee11854fc015dc8d8b772e466226e2dbe0","version":11},{"created_at":"2026-06-04T05:52:38Z","element_count":55,"note":"GA diverse re-design 2026-06-04: 総合 94.6→92.4 (総2階(箱)・吹抜 縁側 ピアノ室 PV 雨水 天窓 南面サンルーム / 適応度 92.4 (美 95 環 100 楽 91))","saved_by":"editor","sha256":"7b99c40f1ab7ef58fa4a64860ae1a3e5b84a73e174f7c4f517a91a571233d049","version":10},{"created_at":"2026-06-04T04:55:17Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 62.3→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":"eb328ab554ad2dfee8ea26dec66801fe18ea0e9573b3aafe888c8504c3852755","version":9},{"created_at":"2026-06-04T04:55:17Z","element_count":20,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"aa1ac24bc092212f84755bff953fc69995f5c9c3cc60f6988b3b5428fa1b8b41","version":8}]}