{"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-asn69qe9","versions":[{"created_at":"2026-06-04T05:50:00Z","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":"472042c130268f4a05ac2f314c4881b52ef5b9a1904968e9ce59fc142e736c26","version":10},{"created_at":"2026-06-04T04:57:50Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 45.9→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":"0b0c9404b5043a12cd4d91a790e1ff628d3bddcd20c325782739f136b6971b82","version":9},{"created_at":"2026-06-04T04:57:50Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"842d938118201b07c8aff0531fddfc0a950ba7a9af673b4574f9e0b284f39268","version":8}]}