{"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-6tgzkpwo","versions":[{"created_at":"2026-06-04T05:51:52Z","element_count":99,"note":"GA diverse re-design 2026-06-04: 総合 97.5→97.5 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 97.5 (美 100 環 97 楽 100))","saved_by":"editor","sha256":"d484df197ad1931b73f7d6226e4022dad09d2d68dbcd47afc986eca914a9cd30","version":10},{"created_at":"2026-06-04T04:53:19Z","element_count":99,"note":"GA batch-improve 2026-06-04: 総合 70.6→97.5 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 97.5 (美 100 環 97 楽 100))","saved_by":"editor","sha256":"ddd4fccd882a234f75611e6f94871fb5250a87d8ebdaf46789bd2c8dfab01efe","version":9},{"created_at":"2026-06-04T04:53:19Z","element_count":32,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"87d880fda42adcdf3dde107555a96b084b54e5b026cceac8c43af9f14d26b9b2","version":8}]}