Rename example folders (#87)

examples/stdio-custom-dependencies/Service/StatsServiceInterface.php

@@ -0,0 +1,20 @@
+<?php
+
+/*
+ * This file is part of the official PHP MCP SDK.
+ *
+ * A collaboration between Symfony and the PHP Foundation.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Mcp\Example\DependenciesStdioExample\Service;
+
+interface StatsServiceInterface
+{
+    /**
+     * @return array<string, int>
+     */
+    public function getSystemStats(): array;
+}