{"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-9orowxyx","versions":[{"created_at":"2026-06-04T05:51:15Z","element_count":99,"note":"GA diverse re-design 2026-06-04: 総合 98.8→98.8 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 98.8 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"adf06df1e146ec13eb26a1fbcc4e342cf90b44afc5bf2586b5bc8c2b30ec5489","version":10},{"created_at":"2026-06-04T04:52:11Z","element_count":99,"note":"GA batch-improve 2026-06-04: 総合 80.4→98.8 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 98.8 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"fa703c8246fef4602d403b0c1de164904f32aafecd38098b84e22a17d4f02664","version":9},{"created_at":"2026-06-04T04:52:11Z","element_count":43,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"4199c8eef86979193ec0de0900062c33c47fd2d2e3f03f4832695bb856ba6788","version":8}]}