Re-factored the routing to support API in the future.

src/API/Backends/Create.php

@@ -0,0 +1,23 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\API\Backends;
+
+use App\Libs\Attributes\Route\Post;
+use App\Libs\HTTP_STATUS;
+use Psr\Http\Message\ResponseInterface;
+use Psr\Http\Message\ServerRequestInterface;
+
+#[Post(pattern: self::URL)]
+final class Create
+{
+    public const URL = '/api/backends';
+
+    public function __invoke(ServerRequestInterface $request, array $args = []): ResponseInterface
+    {
+        return api_response([
+            'message' => 'Create'
+        ], HTTP_STATUS::HTTP_OK);
+    }
+}