{"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-2wq14ioa","versions":[{"created_at":"2026-06-04T17:00:46Z","element_count":63,"note":"polish: batch-improve-100 2026-06-04 (92.4->100.0)","saved_by":"editor","sha256":"eef6d6ed14c7e199efabb3c5c9773bab0ad8160622523f23acb4752150ac5457","version":11},{"created_at":"2026-06-04T05:53:28Z","element_count":55,"note":"GA diverse re-design 2026-06-04: 総合 94.5→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":"a9d25a660dd258ee90225785fe717bbb6d1e19b0bae7ebe7f4829fd7e524a030","version":10},{"created_at":"2026-06-04T04:57:03Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 48.7→94.5 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.5 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"fc019f5ecbf998b91377eab0e17fabd5f2e81e631cc29cf3ca8f029fdd2eb778","version":9},{"created_at":"2026-06-04T04:57:03Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"16cededc324823f53594b40b0d402816a3400e61137a0606dbd7acb9eb75fd94","version":8}]}