chore: enable @typescript-eslint/no-floating-promises rule (#260)

tests/fixtures.ts

@@ -53,7 +53,7 @@ export const test = baseTest.extend<TestFixtures, WorkerFixtures>({
     const userDataDir = testInfo.outputPath('user-data-dir');
     let client: StdioClientTransport | undefined;
 
-    use(async options => {
+    await use(async options => {
       const args = ['--user-data-dir', userDataDir];
       if (mcpHeadless)
         args.push('--headless');

tests/network.spec.ts

@@ -42,8 +42,8 @@ test('browser_network_requests', async ({ client, server }) => {
     },
   });
 
-  expect.poll(() => client.callTool({
+  await expect.poll(() => client.callTool({
     name: 'browser_network_requests',
     arguments: {},
-  })).toHaveTextContent(`[GET] http://localhost:8907/json => [200] OK`);
+  })).toHaveTextContent(`[GET] http://localhost:${server.PORT}/json => [200] OK`);
 });