Refactor routing and proxy components for improved structure and compatibility

- Removed deprecated route utility functions in favor of direct matcher usage.
- Updated imports to reflect new module structure for routing utilities.
- Consolidated route manager functionality into SharedRouteManager for better consistency.
- Eliminated legacy routing methods and interfaces, streamlining the HttpProxy and associated components.
- Enhanced WebSocket and HTTP request handling to utilize the new unified HttpRouter.
- Updated route matching logic to leverage matcher classes for domain, path, and header checks.
- Cleaned up legacy compatibility code across various modules, ensuring a more maintainable codebase.

test/test.acme-route-creation.ts

@@ -92,7 +92,7 @@ tap.test('should create ACME challenge route', async (tools) => {
   await proxy.start();
   
   // Verify the challenge route is in the proxy's routes
-  const proxyRoutes = proxy.routeManager.getAllRoutes();
+  const proxyRoutes = proxy.routeManager.getRoutes();
   const foundChallengeRoute = proxyRoutes.find((r: any) => r.name === 'acme-challenge');
   
   expect(foundChallengeRoute).toBeDefined();