BREAKING CHANGE(core): refactor: reorganize internal module structure to use classes.pp.* modules

- Renamed port proxy and SNI handler source files to classes.pp.portproxy.js and classes.pp.snihandler.js respectively
- Updated import paths in index.ts and test files (e.g. in test.ts and test.router.ts) to reference the new file names
- This refactor improves code organization but breaks direct imports from the old paths

test/test.portproxy.ts

@@ -1,6 +1,6 @@
 import { expect, tap } from '@push.rocks/tapbundle';
 import * as net from 'net';
-import { PortProxy } from '../ts/classes.portproxy.js';
+import { PortProxy } from '../ts/classes.pp.portproxy.js';
 
 let testServer: net.Server;
 let portProxy: PortProxy;
@@ -299,8 +299,8 @@ tap.test('should use round robin for multiple target IPs in domain config', asyn
   
   // Don't track this proxy as it doesn't actually start or listen
   
-  const firstTarget = (proxyInstance as any).getTargetIP(domainConfig);
-  const secondTarget = (proxyInstance as any).getTargetIP(domainConfig);
+  const firstTarget = proxyInstance.domainConfigManager.getTargetIP(domainConfig);
+  const secondTarget = proxyInstance.domainConfigManager.getTargetIP(domainConfig);
   expect(firstTarget).toEqual('hostA');
   expect(secondTarget).toEqual('hostB');
 });

test/test.ts

@@ -226,8 +226,8 @@ tap.test('should start the proxy server', async () => {
   // Awaiting the update ensures that the SNI context is added before any requests come in.
   await testProxy.updateProxyConfigs([
     {
-      destinationIp: '127.0.0.1',
-      destinationPort: '3000',
+      destinationIps: ['127.0.0.1'],
+      destinationPorts: [3000],
       hostName: 'push.rocks',
       publicKey: testCertificates.publicKey,
       privateKey: testCertificates.privateKey,
@@ -280,8 +280,8 @@ tap.test('should support WebSocket connections', async () => {
   // Reconfigure proxy with test certificates if necessary
   await testProxy.updateProxyConfigs([
     {
-      destinationIp: '127.0.0.1',
-      destinationPort: '3000',
+      destinationIps: ['127.0.0.1'],
+      destinationPorts: [3000],
       hostName: 'push.rocks',
       publicKey: testCertificates.publicKey,
       privateKey: testCertificates.privateKey,