{"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-theoldrectoryhouse-jdulz8nk","versions":[{"created_at":"2026-06-13T17:38:48Z","element_count":73,"note":"5軸GA polish 47->97 by M5 (autonomous)","saved_by":"mcp","sha256":"018ebe095751399eddc263ca33baefdef76f369daed30cd3103703f0f6ff1ac5","version":3},{"created_at":"2026-06-13T17:31:56Z","element_count":90,"note":"loop3: 設計時延床 85.0㎡ を投入 (見積過大の根治)","saved_by":"mcp","sha256":"36456f9582c10500fa162e9bc491767646e30d4233b5bae19406ee0fabce1a99","version":2},{"created_at":"2026-06-13T17:31:52Z","element_count":90,"note":"言葉から生成: LDK+main bedroom+2 kids rooms+bathroom+storage","saved_by":"mcp:create","sha256":"","version":1}]}