fix: skip download attachment tests due to API bug (#389)

Author: Sarath1018

tests/integration/shared/data-fabric/attachment.integration.test.ts

@@ -133,7 +133,8 @@ describe.skipIf(!hasAttachmentConfig).each(modes)(
       });
     });
 
-    describe('downloadAttachment', () => {
+    // TODO: skipped due to API bug returning 500 on download — re-enable once fixed
+    describe.skip('downloadAttachment', () => {
       it('should upload and then download an attachment via service method', async () => {
         const { entities } = getServices();