{"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-td75d521","versions":[{"created_at":"2026-07-28T06:49:49Z","element_count":209,"note":"言葉から生成: 総2階(箱) / ピアノ室と防音・吹抜のある家 / MASSIVE WALLS FOR SOUND ISOLATION / SOUNDPROOF ROOM WITHIN ROOM STRUCTURE / SOLAR ENERGY SYSTEM / HIGH INSULATION LEVELS / NARROW COURTYARD FOR LIGHT AND AIR","saved_by":"mcp:create","sha256":"","version":1}]}