{"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-ti678uq3","versions":[{"created_at":"2026-07-23T02:13:41Z","element_count":153,"note":"言葉から生成: 中庭ロの字 / ガレージハウス・愛車3台・趣味室 / 3-CAR GARAGE W/ ELECTRIC LID / CENTRAL COURTYARD (TACHIYA STYLE) / HOBBY ROOM W/ HIGH CEILING / HIGH-INSULATION GLASS (TRIPE) / GEOTHERMAL HEAT PUMP","saved_by":"mcp:create","sha256":"","version":1}]}