fix some tests and prepare next step of evolution

test/test.memory-leak-check.node.ts

@@ -31,7 +31,6 @@ tap.test('should not have memory leaks in long-running operations', async (tools
   routes[0].match.ports = 8080;
   
   const proxy = new SmartProxy({
-    ports: [8080], // Use non-privileged port
     routes: routes
   });
   await proxy.start();
@@ -143,7 +142,7 @@ tap.test('should not have memory leaks in long-running operations', async (tools
 
   // Cleanup
   await proxy.stop();
-  await new Promise<void>((resolve) => targetServer.close(resolve));
+  await new Promise<void>((resolve) => targetServer.close(() => resolve()));
 
   console.log('Memory leak test completed successfully');
 });