{"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-uf4a8vjn","versions":[{"created_at":"2026-06-04T17:00:12Z","element_count":81,"note":"polish: batch-improve-100 2026-06-04 (94.0->99.1)","saved_by":"editor","sha256":"18787d183286051016c13101792e0194057d61900d93120ab1d69eef4fb2c5b2","version":11},{"created_at":"2026-06-04T05:53:47Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 94.0→94.0 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.0 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"d10ec2279baae8a4bbef9aa050add57d0bef5ca117dee657859103ad5caa2a05","version":10},{"created_at":"2026-06-04T04:53:28Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 70.1→94.0 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.0 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"c250eab1bd50e1862b7ae2ef176cebe38987ea52154c04b1b4da8d15854868c1","version":9},{"created_at":"2026-06-04T04:53:28Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"c6cd25189886e0b1d51e0f74baa0c0c33edec6ffb36ff9cbcf73f4478273b78c","version":8}]}