{"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-rj4j41ng","versions":[{"created_at":"2026-06-04T05:53:26Z","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":"747e1ef1d1f306e2f9000c1db611953e1a1b5cb2bc97bb39212dd96f0c5692ef","version":10},{"created_at":"2026-06-04T04:52:40Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 75.0→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":"3a646e3ccaf127fb879202a89dabca4d1230054ce670bb0f5f010276f96ad21d","version":9},{"created_at":"2026-06-04T04:52:40Z","element_count":32,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"2b2d465034bb14d13a0c58cc06700de114f368b1965517b3e02bdfee54bab34b","version":8}]}