{"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-tsugi-od5m0l35","versions":[{"created_at":"2026-06-04T05:49:49Z","element_count":99,"note":"GA diverse re-design 2026-06-04: 総合 99.8→99.8 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 99.8 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"c0574110d197eb21e04ba7aa3083df51b502c1a998c5d3391ed40e5aa0447e3d","version":10},{"created_at":"2026-06-04T04:54:29Z","element_count":99,"note":"GA batch-improve 2026-06-04: 総合 66.2→99.8 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 99.8 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"5f55edc71d920a44bbaf1de5be6479cf4014b42eb0fca6259b43dc3ee4c52723","version":9},{"created_at":"2026-06-04T04:54:29Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"7325d430dea271adbbdb98f10247080d8712deefe3ef2535163a8dea638b9a24","version":8}]}