{"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-kyltaer3","versions":[{"created_at":"2026-06-26T06:53:09Z","element_count":90,"note":"5軸GA polish 43->96 by M5 (autonomous)","saved_by":"mcp","sha256":"9b7c35ee36469d35bd9b335604f637f674edc15915073d0336433a852d92ae3b","version":3},{"created_at":"2026-06-26T06:46:49Z","element_count":105,"note":"loop3: 設計時延床 85.0㎡ を投入 (見積過大の根治)","saved_by":"mcp","sha256":"d62c9ad6df50614c53139a9e564a43467061dd37f655bc52d93e850bf3d8a1d6","version":2},{"created_at":"2026-06-26T06:46:49Z","element_count":105,"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}]}