{"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-instanthouseayourcop-ssuyojek","versions":[{"created_at":"2026-10-25T02:36:26Z","element_count":14,"note":"敷地寸法を設定して建ぺい率/容積率を適合させる","saved_by":"mcp","sha256":"201d9665183fdea26ba8f44567a4c52217e511bce26f06a2c12eecd1a65297f2","version":2},{"created_at":"2026-10-25T02:35:24Z","element_count":14,"note":"言葉から生成: Instant House A — 美留和 (Your Copy)","saved_by":"mcp:create","sha256":"","version":1}]}