fix: 修复 TypeScript 编译错误

- 移除未使用的 getGitHubTagUrl 导入
- 移除未使用的 Divider、InfoCircleOutlined 导入
- 移除未使用的 Typography 组件解构

frontend/src/components/Layout.tsx

@@ -24,7 +24,7 @@ import {
 } from '@ant-design/icons'
 import type { MenuProps } from 'antd'
 import type { ReactNode } from 'react'
-import { removeToken, getVersionText, getGitHubTagUrl, getVersionInfo } from '../utils'
+import { removeToken, getVersionText, getVersionInfo } from '../utils'
 import { wsManager } from '../services/websocket'
 import { apiClient } from '../services/api'
 import Logo from './Logo'

frontend/src/pages/SystemUpdate.tsx

@@ -1,17 +1,15 @@
 import { useState, useEffect } from 'react'
-import { Card, Button, Spin, Progress, Alert, Space, Typography, Divider, Tag, Modal, message } from 'antd'
+import { Card, Button, Spin, Progress, Alert, Space, Tag, Modal, message } from 'antd'
 import {
     CloudUploadOutlined,
     ReloadOutlined,
     CheckCircleOutlined,
-    ExclamationCircleOutlined,
-    InfoCircleOutlined
+    ExclamationCircleOutlined
 } from '@ant-design/icons'
 import { apiClient } from '../services/api'
 import ReactMarkdown from 'react-markdown'
 import remarkGfm from 'remark-gfm'
 
-const { Title, Text, Paragraph } = Typography
 
 interface UpdateInfo {
     hasUpdate: boolean