Add simple PSR-4 autoloader

app/autoload.php

@@ -0,0 +1,27 @@
+<?php
+namespace Mcp;
+
+class Autoloader {
+
+    private string $appPath;
+    private string $libPath;
+
+    public function __construct($basedir)
+    {
+        $this->appPath = $basedir.DIRECTORY_SEPARATOR.'app'.DIRECTORY_SEPARATOR;
+        $this->libPath = $basedir.DIRECTORY_SEPARATOR.'lib'.DIRECTORY_SEPARATOR;
+    }
+
+    public function load($className) {
+        $parts = explode('\\', $className);
+        $len = count($parts);
+
+        $res = $parts[0] === 'Mcp' ? $this->appPath : $this->libPath;
+        for ($i = 1; $i < $len - 1; $i++) {
+            $res = $res.strtolower($parts[$i]).DIRECTORY_SEPARATOR;
+        }
+
+        require $res.$parts[$len - 1].'.php';
+    }
+
+}