{"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-oozl10o9","versions":[{"created_at":"2026-06-04T05:52:57Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 94.6→94.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"cf6e0826d2c1b4772abef942c6d4fcdc7307cd96d99145b0f15a86a9fbae00c3","version":10},{"created_at":"2026-06-04T04:56:41Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 52.0→94.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"b7500d73822ce71de012083ace9c9b7d2e4f65154203eb7ec72c2f8e9e1bf76e","version":9},{"created_at":"2026-06-04T04:56:40Z","element_count":16,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"af71649a80277a9268c55cd0b5002cc847e237e051470437f793e62fbc306028","version":8}]}