{"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-cq5410uy","versions":[{"created_at":"2026-06-04T05:55:31Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 93.1→93.1 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 93.1 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"d10e75b3c88af1ceb0a10f4cef0b7a7be8cedfa1acf7d3a48abfc09a304f5e78","version":10},{"created_at":"2026-06-04T04:52:50Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 74.0→93.1 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 93.1 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"7ce4c19e0ec79dbb7b900697238a4b0d23c19b8d6f20339124a8e1ecac5fe92a","version":9},{"created_at":"2026-06-04T04:52:50Z","element_count":32,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"d49a56376bd48af4cad3e49821e5d6047a5276b89e23176ab855de9b76529239","version":8}]}