feat(smart-proxy): add socket-handler relay, fast-path port-only forwarding, metrics and bridge improvements, and various TS/Rust integration fixes

test/test.smartproxy.ts

@@ -94,7 +94,7 @@ tap.test('setup port proxy test environment', async () => {
 tap.test('should start port proxy', async () => {
   await smartProxy.start();
   // Check if the proxy is listening by verifying the ports are active
-  expect(smartProxy.getListeningPorts().length).toBeGreaterThan(0);
+  expect((await smartProxy.getListeningPorts()).length).toBeGreaterThan(0);
 });
 
 // Test basic TCP forwarding.
@@ -237,7 +237,7 @@ tap.test('should handle connection timeouts', async () => {
 tap.test('should stop port proxy', async () => {
   await smartProxy.stop();
   // Verify that there are no listening ports after stopping
-  expect(smartProxy.getListeningPorts().length).toEqual(0);
+  expect((await smartProxy.getListeningPorts()).length).toEqual(0);
   
   // Remove from tracking
   const index = allProxies.indexOf(smartProxy);