{"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-wharfsidebungalow-wrjywsui","versions":[{"created_at":"2026-07-08T08:05:09Z","element_count":71,"note":"5軸GA polish 41->92 by M5 (autonomous)","saved_by":"mcp","sha256":"965fe92df42a86188044948c5625552a67d1c8bf5b43f389cdd59c8178ad7ea5","version":3},{"created_at":"2026-07-08T07:58:41Z","element_count":101,"note":"loop3: 設計時延床 85.0㎡ を投入 (見積過大の根治)","saved_by":"mcp","sha256":"6db76cb56805b9899533416f8ef3c7f1897723fa6e1afc6700aff86f0f460e50","version":2},{"created_at":"2026-07-08T07:58:41Z","element_count":101,"note":"言葉から生成: LDK+main bedroom+2 kids rooms+bathroom+storage","saved_by":"mcp:create","sha256":"","version":1}]}