{"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-i1ts1aom","versions":[{"created_at":"2026-06-04T05:50:50Z","element_count":99,"note":"GA diverse re-design 2026-06-04: 総合 99.4→99.4 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 99.4 (美 99 環 100 楽 100))","saved_by":"editor","sha256":"1d71defdd919f53f6b5b54a08ae6b2da4f16feba84cba49157822b02b323b9f1","version":10},{"created_at":"2026-06-04T04:54:23Z","element_count":99,"note":"GA batch-improve 2026-06-04: 総合 66.5→99.4 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 99.4 (美 99 環 100 楽 100))","saved_by":"editor","sha256":"87258d8842d2fb91a9e7022776e6dc0ab2f97e09c98397c0165e69f8d0906584","version":9},{"created_at":"2026-06-04T04:54:23Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"5bfa267dd908508293f645c4f1379ee9fc146405fb4c6fd98a242fb915f32272","version":8}]}