{"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-o3wp5x15","versions":[{"created_at":"2026-06-04T05:51:46Z","element_count":98,"note":"GA diverse re-design 2026-06-04: 総合 97.6→100.0 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 100.0 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"333ced928799cb7511b369f0e94fd448901183f39fcab8921356db3a405e4be4","version":10},{"created_at":"2026-06-04T04:56:09Z","element_count":101,"note":"GA batch-improve 2026-06-04: 総合 57.4→97.6 (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 97.6 (美 93 環 100 楽 100))","saved_by":"editor","sha256":"ab50ddbdc153bfea87fe55de3da54e44e63ccdc4e68908666bbbdf7a3a309e05","version":9},{"created_at":"2026-06-04T04:56:09Z","element_count":24,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"b3904d234717e5913062d50e606f08632bddc843ec97e45fe93388bc132101f1","version":8}]}