style: fix formatting with Prettier

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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

apps/server/tests/utils/helpers.ts

@@ -24,7 +24,7 @@ export async function waitFor(
   const start = Date.now();
   while (!condition()) {
     if (Date.now() - start > timeout) {
-      throw new Error("Timeout waiting for condition");
+      throw new Error('Timeout waiting for condition');
     }
     await new Promise((resolve) => setTimeout(resolve, interval));
   }