{"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-jlmnn41z","versions":[{"created_at":"2026-06-04T05:50:06Z","element_count":98,"note":"GA diverse re-design 2026-06-04: 総合 99.5→99.5 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.5 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"0c5df78dad825f9eea946c227fb2d390005e1a6f09e89e088fb17b722b54d034","version":10},{"created_at":"2026-06-04T04:52:34Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 75.4→99.5 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.5 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"a4cb89b6d68781f5517d38b2baea747498686b724b2ab6e420ce598ea49dd691","version":9},{"created_at":"2026-06-04T04:52:34Z","element_count":32,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"48a885404a4450d7346089d20ec8554aa246c16d23740bd63e400f1ae344bb53","version":8}]}