{"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-ryg2pzg6","versions":[{"created_at":"2026-06-04T06:04:23Z","element_count":99,"note":"GA diverse final 2026-06-04: 総合 89.5→99.3 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 99.3 (美 100 環 99 楽 100))","saved_by":"editor","sha256":"3fdb959a66dbd3aa8d9a53517e0318ff101cbc1041a562f82ce9f0a922df3c1e","version":11},{"created_at":"2026-06-04T05:50:56Z","element_count":55,"note":"GA diverse re-design 2026-06-04: 総合 99.3→89.5 (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 89.5 (美 95 環 99 楽 91))","saved_by":"editor","sha256":"4aee4b61aee3d19ebd0f69f3578bd77fdc9050766fb07dadf79b80c5204d8905","version":10},{"created_at":"2026-06-04T04:54:32Z","element_count":99,"note":"GA batch-improve 2026-06-04: 総合 66.0→99.3 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 99.3 (美 100 環 99 楽 100))","saved_by":"editor","sha256":"1e88883512e7fd72aef2b2b07b52f80d290cf62ea36d432d9188ac8a611ee679","version":9},{"created_at":"2026-06-04T04:54:32Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"f9ea04c23921256cd0cfd83a65ff53f0382258f9cfd54b550d86da4e6d40181d","version":8}]}