Initial commit: Grav CMS setup with HTML reference material

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

user/plugins/admin/vendor/composer/autoload_psr4.php

@@ -0,0 +1,12 @@
+<?php
+
+// autoload_psr4.php @generated by Composer
+
+$vendorDir = dirname(__DIR__);
+$baseDir = dirname($vendorDir);
+
+return array(
+    'ScssPhp\\ScssPhp\\' => array($vendorDir . '/scssphp/scssphp/src'),
+    'Laminas\\Xml\\' => array($vendorDir . '/laminas/laminas-xml/src'),
+    'Grav\\Plugin\\Admin\\' => array($baseDir . '/classes/plugin'),
+);