kernal clean-up

core/lib/Http/Middleware/RequestHandlerInterface.php

@@ -0,0 +1,20 @@
+<?php
+
+namespace KTXC\Http\Middleware;
+
+use KTXC\Http\Request\Request;
+use KTXC\Http\Response\Response;
+
+/**
+ * PSR-15 style request handler interface
+ */
+interface RequestHandlerInterface
+{
+    /**
+     * Handle the request and return a response.
+     *
+     * @param Request $request The request to handle
+     * @return Response The response from handling the request
+     */
+    public function handle(Request $request): Response;
+}