Drop redundant preparePath in Http::execute

$matchedPath is already the prepared form (the key from Router::$routes),
so re-preparing it just returned the same string. Pass it straight to
Route::getPathValues.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: loks0n

src/Http/Http.php

@@ -598,8 +598,7 @@ public function execute(Route $route, Request $request, Response $response, stri
         $arguments = [];
         $groups = $route->getGroups();
 
-        $preparedPath = Router::preparePath($matchedPath);
-        $pathValues = $route->getPathValues($request, $preparedPath[0]);
+        $pathValues = $route->getPathValues($request, $matchedPath);
 
         try {
             if ($route->getHook()) {