{"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-engawahousegeniusken-khw6rizc","versions":[{"created_at":"2026-06-04T05:51:14Z","element_count":99,"note":"GA diverse re-design 2026-06-04: 総合 98.9→99.8 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 99.8 (美 99 環 100 楽 100))","saved_by":"editor","sha256":"ab4b43f3d17bce2e1976c5a10696391fc22887b7984da537f659423cf6f34afe","version":4},{"created_at":"2026-06-04T04:59:40Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 16.7→98.9 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 98.9 (美 99 環 98 楽 100))","saved_by":"editor","sha256":"f9efaca053584b2f572aba0e43a41ed404d30a9cd61400df48f1092296251347","version":3},{"created_at":"2026-06-04T04:59:40Z","element_count":44,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"e2c2122a629ae7cfc5df129b451a06987fc7efe5e3488117dd4e8a2c827e887b","version":2}]}