{"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-b000w3ji","versions":[{"created_at":"2026-06-04T05:51:11Z","element_count":99,"note":"GA diverse re-design 2026-06-04: 総合 99.0→99.0 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 99.0 (美 100 環 96 楽 100))","saved_by":"editor","sha256":"241df77b78f805e9f6e27134040b831e9a5ebbb34828a1245824da22f169ade2","version":10},{"created_at":"2026-06-04T04:54:33Z","element_count":99,"note":"GA batch-improve 2026-06-04: 総合 65.9→99.0 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 99.0 (美 100 環 96 楽 100))","saved_by":"editor","sha256":"7430de1603cba1b7b9d169f58069b20acd82b60e86a9060ea6212c75ca77eb09","version":9},{"created_at":"2026-06-04T04:54:33Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"55f2f9ef96bc30e2bc99a601f60ac108cc5945dd19802c553172ba2198261aeb","version":8}]}