{"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-2a9dt0k5","versions":[{"created_at":"2026-06-04T05:50:39Z","element_count":98,"note":"GA diverse re-design 2026-06-04: 総合 99.5→99.5 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.5 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"b77da44a2b03af6adea3cdde90b523dc70b09c21503099065b05181577981531","version":10},{"created_at":"2026-06-04T04:56:40Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 52.0→99.5 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.5 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"184bce06376b382548f8ae0bc5d0530155006ff0ecd684395ce1b450a7c0548e","version":9},{"created_at":"2026-06-04T04:56:40Z","element_count":66,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"c06eef9fad6f6453d9e772cf0f9309bcdcdd57fc13ad26e7b21a7e1770d777e5","version":8}]}