userfront로 리펙토링 완료

backend/internal/service/descope_service.go

@@ -44,7 +44,7 @@ func NewDescopeProvider(projectID, managementKey string) *DescopeProvider {
 
 	return &DescopeProvider{
 		Client:       descopeClient,
-		FrontendURL:  os.Getenv("FRONTEND_URL"),
+		FrontendURL:  os.Getenv("USERFRONT_URL"),
 		fieldMapping: mapping,
 	}
 }