Match on catalog ref instead of source for community warning

Compare catalog.Ref directly against CommunityRegistryCatalogRef
instead of pattern-matching the source field.

Author: jchangx

pkg/catalog_next/pull.go

@@ -29,19 +29,14 @@ func Pull(ctx context.Context, dao db.DAO, ociService oci.Service, refStr string
 
 	fmt.Printf("Catalog %s pulled\n", catalog.Ref)
 
-	if isCommunityRegistry(catalog.Source) {
+	if catalog.Ref == CommunityRegistryCatalogRef {
 		fmt.Fprintf(os.Stderr, "\n⚠️  Community Registry servers are not vetted by Docker.\n")
 	}
 
 	success = true
 	return nil
 }
 
-// isCommunityRegistry checks if the catalog source matches the known community registry OCI reference.
-func isCommunityRegistry(source string) bool {
-	return source == SourcePrefixOCI+"mcp/community-registry:latest"
-}
-
 func pullCatalog(ctx context.Context, dao db.DAO, ociService oci.Service, refStr string) (*db.Catalog, error) {
 	ref, err := name.ParseReference(refStr)
 	if err != nil {