release: 2.2.1

## 🐛 修复问题
- 修复BBCode嵌套标签显示问题，优化内容处理逻辑
- 修正NexusPHP站点上传量和下载量的数据解析
- 修复应用状态管理异常，添加mounted检查防止setState调用错误

## ✨ 新增功能
- 添加Cookie过期异常处理和提示对话框
- 优化服务器设置页面活动站点的视觉样式

## 🎨 界面优化
- 统一界面主题颜色，使用主色调提升视觉一致性
- 优化移动端布局，将分类下拉菜单和搜索框改为垂直排列
- 添加统计信息卡片式展示，提升信息可读性

Author: JustLookAtNow

pubspec.yaml

@@ -16,7 +16,7 @@ publish_to: 'none' # Remove this line if you wish to publish to pub.dev
 # https://developer.apple.com/library/archive/documentation/General/Reference/InfoPlistKeyReference/Articles/CoreFoundationKeys.html
 # In Windows, build-name is used as the major, minor, and patch parts
 # of the product and file versions while build-number is used as the build suffix.
-version: 2.2.0-beta
+version: 2.2.1
 
 environment:
   sdk: ^3.9.0