{"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-wipfqyxc","versions":[{"created_at":"2026-06-04T05:55:01Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 93.6→93.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 93.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"a068e543561d3c57f27465fb716991c35ba9f5ea34dcaf2e48ed72cab4b1ae8d","version":10},{"created_at":"2026-06-04T04:59:24Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 36.6→93.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 93.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"9a6f0775834915d5cac417462edf6c362423a430c15fd118f97fe256e433b046","version":9},{"created_at":"2026-06-04T04:59:24Z","element_count":19,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"0508022f8b872353325496ba4f1ecf65b1650ce197875419096922507827a1c0","version":8}]}