MRBS 1.12.2 等保2.0二级整改完整提交

包含：登录失败锁定、90天密码有效期、30分钟会话超时、
强制改密、登录审计日志、屏幕水印、企业背景图、
备案信息固定底部、favicon、JS空集合保护、
会话过期体验优化（403 JSON）、display_errors 关闭、
固定 key 根治 Integrity check failed 等全部改动

注意：config.inc.php/.htaccess/.user.ini 含敏感信息，
通过 .gitignore 排除，勿推送到公开仓库。

lib/Monolog/Handler/NoopHandler.php

@@ -0,0 +1,40 @@
+<?php declare(strict_types=1);
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Handler;
+
+/**
+ * No-op
+ *
+ * This handler handles anything, but does nothing, and does not stop bubbling to the rest of the stack.
+ * This can be used for testing, or to disable a handler when overriding a configuration without
+ * influencing the rest of the stack.
+ *
+ * @author Roel Harbers <roelharbers@gmail.com>
+ */
+class NoopHandler extends Handler
+{
+    /**
+     * {@inheritDoc}
+     */
+    public function isHandling(array $record): bool
+    {
+        return true;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function handle(array $record): bool
+    {
+        return false;
+    }
+}