test: fix formatting in test setup

packages/core/test/setup.ts

@@ -3,9 +3,9 @@
 
 // Mock fetch globally for tests
 global.fetch =
-	global.fetch ||
+  global.fetch ||
-	(() => {
+  (() => {
-		throw new Error("fetch is not available in test environment");
+    throw new Error("fetch is not available in test environment");
-	});
+  });
 
 // Add any global test utilities here