{"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-jb6qg0pe","versions":[{"created_at":"2026-06-04T07:22:07Z","element_count":99,"note":"GA polish 2026-06-04: 総合 97.3→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":"0741fdfb2ea69f2bfe2dbc9c9d5bf66a7b8eab2db5d4c3e9ef0e98f5ff193be1","version":11},{"created_at":"2026-06-04T05:49:46Z","element_count":102,"note":"GA diverse re-design 2026-06-04: 総合 99.8→97.3 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 南面サンルーム / 適応度 97.3 (美 92 環 100 楽 100))","saved_by":"editor","sha256":"828706755a89811727687426b181608280046240e5002e63376b29b94085fe2b","version":10},{"created_at":"2026-06-04T04:57:55Z","element_count":99,"note":"GA batch-improve 2026-06-04: 総合 45.7→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":"c8992a7d7087a49121c4e93ee3cc817a511842652fc44c6d17299a472204022c","version":9},{"created_at":"2026-06-04T04:57:55Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"56450ec7aeb377d25848d3093ae5c338caafe8192060461973e4f7d676fecb9b","version":8}]}