{"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-mh88ac55","versions":[{"created_at":"2026-06-04T05:49:36Z","element_count":98,"note":"GA diverse re-design 2026-06-04: 総合 100.0→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":"11544861ed27fe439a22bac9554203833ac567d09a9f83acded9a2fb1d56535b","version":10},{"created_at":"2026-06-04T04:56:33Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 53.2→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":"c5b0685d11f1b0cfe4bd78268905e6d0011453ccd9cc320425415bc2c7864ffa","version":9},{"created_at":"2026-06-04T04:56:33Z","element_count":24,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"07e78c41d18ecd86e3eb7533fa1d4636a2a7868ecd587074fa66a3db295e0456","version":8}]}