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/Formatter/GoogleCloudLoggingFormatter.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\Formatter;
+
+use DateTimeInterface;
+use Monolog\LogRecord;
+
+/**
+ * Encodes message information into JSON in a format compatible with Cloud logging.
+ *
+ * @see https://cloud.google.com/logging/docs/structured-logging
+ * @see https://cloud.google.com/logging/docs/reference/v2/rest/v2/LogEntry
+ *
+ * @author Luís Cobucci <lcobucci@gmail.com>
+ */
+final class GoogleCloudLoggingFormatter extends JsonFormatter
+{
+    /** {@inheritdoc} **/
+    public function format(array $record): string
+    {
+        // Re-key level for GCP logging
+        $record['severity'] = $record['level_name'];
+        $record['time'] = $record['datetime']->format(DateTimeInterface::RFC3339_EXTENDED);
+
+        // Remove keys that are not used by GCP
+        unset($record['level'], $record['level_name'], $record['datetime']);
+
+        return parent::format($record);
+    }
+}
+