{"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-ttmsm1tk","versions":[{"created_at":"2026-06-04T05:53:46Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 94.1→94.1 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.1 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"5bc1a19d858429fe9e9b1b344766bb834b4df5478f4aa9cdd1a2926588ad2536","version":10},{"created_at":"2026-06-04T04:59:26Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 36.0→94.1 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.1 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"555c5b16e7d2c1c0be670ea3bf1539fe15335f1430acceb87e65559f99c159e4","version":9},{"created_at":"2026-06-04T04:59:26Z","element_count":17,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"f4b1991fbdad9937618ae6c2a7afe941a4d32c9e685fbb119bed16b6dc549ab1","version":8}]}