fix some tests and prepare next step of evolution

test/test.proxy-chain-simple.node.ts

@@ -24,7 +24,6 @@ tap.test('simple proxy chain test - identify connection accumulation', async ()
   
   // Create SmartProxy2 (downstream)
   const proxy2 = new SmartProxy({
-    ports: [8591],
     enableDetailedLogging: true,
     socketTimeout: 5000,
     routes: [{
@@ -42,7 +41,6 @@ tap.test('simple proxy chain test - identify connection accumulation', async ()
   
   // Create SmartProxy1 (upstream)
   const proxy1 = new SmartProxy({
-    ports: [8590],
     enableDetailedLogging: true,
     socketTimeout: 5000,
     routes: [{
@@ -91,7 +89,7 @@ tap.test('simple proxy chain test - identify connection accumulation', async ()
         dataReceived = true;
       });
       
-      client.on('error', (err) => {
+      client.on('error', (err: NodeJS.ErrnoException) => {
         console.log(`Client error: ${err.code}`);
         resolve();
       });