{"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-hjgk1odm","versions":[{"created_at":"2026-06-04T07:22:05Z","element_count":99,"note":"GA polish 2026-06-04: 総合 97.7→99.2 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 99.2 (美 99 環 100 楽 100))","saved_by":"editor","sha256":"73916b56d22845710f13bea5ef9e763affc6895ff93eee18f3d1f830f132ecfb","version":11},{"created_at":"2026-06-04T05:51:45Z","element_count":102,"note":"GA diverse re-design 2026-06-04: 総合 97.7→97.7 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 南面サンルーム / 適応度 97.7 (美 95 環 100 楽 100))","saved_by":"editor","sha256":"5ce7ab5f53460f699fb5857ffbbf2e226068f30a80cbedf76c35d6e748bb93c4","version":10},{"created_at":"2026-06-04T04:56:17Z","element_count":102,"note":"GA batch-improve 2026-06-04: 総合 56.4→97.7 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 南面サンルーム / 適応度 97.7 (美 95 環 100 楽 100))","saved_by":"editor","sha256":"929e36af35114df18f11dcdee7b9d09fc4b89a21b16a74069ea511a43e2f4ae7","version":9},{"created_at":"2026-06-04T04:56:17Z","element_count":44,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"d894b263aca135bb13e8b96784fe83eeec5512f18a89c469ba308e62ed65c36d","version":8}]}