지붕면 할당 시 선택된 지붕재 추가

src/hooks/common/useRoofFn.js

@@ -138,6 +138,7 @@ export function useRoofFn() {
 
     polygon.set('fill', null)
     polygon.set('fill', pattern)
+    polygon.roofMaterial = roofMaterial
     polygon.canvas?.renderAll()
   }
   return { setSurfaceShapePattern }