{"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-fa4eczwx","versions":[{"created_at":"2026-06-04T05:50:30Z","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":"8c3cf018286fec95ab28ca8e568cc816279b425164f5801c6c005132cd17351c","version":10},{"created_at":"2026-06-04T04:52:54Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 73.6→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":"232f513884397deb6b6598355e5f089b64485880b1f3de0996e6e0a12b801404","version":9},{"created_at":"2026-06-04T04:52:54Z","element_count":32,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"0f9a792b6dd86566465d75d265aa9c78697d4703e71c87d694c3cfbe31527308","version":8}]}