{"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-j4zbtoso","versions":[{"created_at":"2026-06-04T05:52:07Z","element_count":98,"note":"GA diverse re-design 2026-06-04: 総合 97.0→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":"0423cd578f6eec3873d792c9bd49a8ccc812739a85cf70a972a2c8499af78ea5","version":10},{"created_at":"2026-06-04T04:54:14Z","element_count":101,"note":"GA batch-improve 2026-06-04: 総合 67.0→97.0 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 南面サンルーム / 適応度 97.0 (美 92 環 100 楽 100))","saved_by":"editor","sha256":"98c2ee242d44f394b9a866aa39816c0a9f918205d47972271d90852723680433","version":9},{"created_at":"2026-06-04T04:54:14Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"a325425706599e6f6bdaaafccb4d381362c430f84afb7b20e41eae066d3903b9","version":8}]}