init

- 框架初始化
 - 安装插件
 - 修复PHP8.4报错

vendor/composer/autoload_namespaces.php

@@ -0,0 +1,11 @@
+<?php
+
+// autoload_namespaces.php @generated by Composer
+
+$vendorDir = dirname(__DIR__);
+$baseDir = dirname($vendorDir);
+
+return array(
+    'Pimple' => array($vendorDir . '/pimple/pimple/src'),
+    'HTMLPurifier' => array($vendorDir . '/ezyang/htmlpurifier/library'),
+);