Refactor API response handling to use string type for route class in status code inference

Author: yceruto

src/Controller/Decorator/ApiResponseDecorator.php

@@ -41,7 +41,7 @@ public function decorate(CallableClosure $callable, CallableMetadata $metadata):
         $request = $metadata->context['request'];
         /** @var Type $returnType */
         $type ??= $metadata->getAttribute('return_type');
-        $statusCode ??= $request->attributes->getInt('_api_status_code', match ($request->attributes->getInt('_api_route_class')) {
+        $statusCode ??= $request->attributes->getInt('_api_status_code', match ($request->attributes->getString('_api_route_class')) {
             Post::class => 201,
             Delete::class => 204,
             default => 200,

src/Routing/Attribute/ApiRoute.php

@@ -37,7 +37,7 @@ public function __construct(
                 '_api_controller' => true,
                 '_api_route_class' => $this::class,
                 '_api_status_code' => $statusCode,
-            ], fn ($v) => null !== $v),
+            ], fn (mixed $v) => null !== $v),
             host: $host,
             methods: [static::getMethod()],
             schemes: $schemes,