{"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-ukjzpx4z","versions":[{"created_at":"2026-06-15T02:46:02Z","element_count":253,"note":"言葉から生成: 中庭ロの字 / 狭小の町家・吹抜・坪庭 / 中庭(坪庭・採光・通風・潤い) / 吹抜(中庭・広がり・潤い) / 2階建て(広さ・潤い・広がり) / 木材(潤い・広がり・潤い)","saved_by":"mcp:create","sha256":"","version":1}]}