{"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-3vgla5cn","versions":[{"created_at":"2026-06-04T05:50:01Z","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":"054ca994a98f83a21c60cebee871270f07f0ecdc7f1d567012d8c29e7fc72c02","version":10},{"created_at":"2026-06-04T04:53:35Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 69.9→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":"6665f3f741e5dadfc7dfabcb327f65c229744844e00375fa3cc470017152b5e8","version":9},{"created_at":"2026-06-04T04:53:35Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"00960a78fe079b84d6e63787162b51b7bab9ae6db60f1cb1dc1d782e19c6e9ca","version":8}]}