[1436]처마 커버의 처음 체크

src/components/floor-plan/modal/basic/step/Trestle.jsx

@@ -859,7 +859,7 @@ const Trestle = forwardRef((props, ref) => {
                     type="checkbox"
                     id={`ch01`}
                     disabled={!cvrYn || cvrYn === 'N'}
-                    checked={cvrChecked || true}
+                    checked={cvrChecked ?? false}
                     // onChange={() => dispatch({ type: 'SET_TRESTLE_DETAIL', roof: { ...trestleState, cvrChecked: !trestleState.cvrChecked } })}
                     onChange={() => setCvrChecked(!cvrChecked)}
                   />