{"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-7k6nyj16","versions":[{"created_at":"2026-07-06T19:43:36Z","element_count":84,"note":"5軸GA polish 43->96 by M5 (autonomous)","saved_by":"mcp","sha256":"8ff61c3cd9841e8341d0189e420e3b32d77608d541cbc47009690b68a37a894a","version":3},{"created_at":"2026-07-06T19:31:21Z","element_count":126,"note":"loop3: 設計時延床 85.0㎡ を投入 (見積過大の根治)","saved_by":"mcp","sha256":"e9732a16380a4ce924380b980329ed97205b72fca5e3497dcc3b2cbe56f954dc","version":2},{"created_at":"2026-07-06T19:31:21Z","element_count":126,"note":"言葉から生成: LDK+主寝室+子供室2+浴室+収納","saved_by":"mcp:create","sha256":"","version":1}]}