{"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-g9qjp9k8","versions":[{"created_at":"2026-06-04T05:50:33Z","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":"fc9f95cba75da90af5ab2f085b061f605cf27fe678d06e809d37389110164bce","version":10},{"created_at":"2026-06-04T04:57:07Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 48.5→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":"16b3a0cba9509ce00b062ba96292c4da27944f145b4e57ca93c843e0009a8900","version":9},{"created_at":"2026-06-04T04:57:07Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"74cc8a96af493d54c51edab25c7d76bfb9ef3acb053bf4b87c3f9941b7be6568","version":8}]}