{"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-3p8ykrf7","versions":[{"created_at":"2026-06-04T17:00:47Z","element_count":77,"note":"polish: batch-improve-100 2026-06-04 (92.2->96.5)","saved_by":"editor","sha256":"b590a4ca4f01d211600932e8b8837931f01fa2a221611843c6c4e29ce560cabe","version":11},{"created_at":"2026-06-04T05:55:51Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 92.2→92.2 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 92.2 (美 100 環 98 楽 100))","saved_by":"editor","sha256":"7d05914e2d40395211a0b3342fd6a32b637d167a4b0f8b0fdbf0edeae260fd85","version":10},{"created_at":"2026-06-04T04:53:46Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 68.8→92.2 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 92.2 (美 100 環 98 楽 100))","saved_by":"editor","sha256":"54f762ac63a6718c17ca16a1559ebe19b49ec9021ebe457c29b6109975c536a8","version":9},{"created_at":"2026-06-04T04:53:46Z","element_count":32,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"3592f268485dd100250baefdaa299d18b0c350c478c6be11d7456e712b09657a","version":8}]}