feat(smartproxy): Migrate internal module paths and update HTTP/ACME components for SmartProxy

ts/http/index.ts

@@ -2,7 +2,18 @@
  * HTTP functionality module
  */
 
+// Export types and models
+export * from './models/http-types.js';
+
 // Export submodules
 export * from './port80/index.js';
 export * from './router/index.js';
 export * from './redirects/index.js';
+
+// Convenience namespace exports
+export const Http = {
+  Port80: {
+    Handler: require('./port80/port80-handler.js').Port80Handler,
+    ChallengeResponder: require('./port80/challenge-responder.js').ChallengeResponder
+  }
+};