feat: 重构前端代码结构并添加Java后端支持

- 重构前端导入和组件结构，优化代码组织
- 添加Java后端基础框架和API实现
- 修复类型定义和接口兼容性问题
- 新增测试页面和工具函数
- 优化国际化支持和错误处理
- 更新依赖配置和构建脚本

新增Java后端模块：
- 实现基础认证、订单、支付等服务
- 添加Swagger API文档支持
- 配置数据库连接和缓存
- 实现国际化消息处理
- 添加安全过滤器和限流控制

dashboard/src/layouts/index.tsx

@@ -1,7 +1,5 @@
+import React, { useState, useEffect, useMemo, FC } from 'react';
 import {
-  useState,
-  useEffect,
-  useMemo,
   Layout,
   Menu,
   Typography,
@@ -12,6 +10,8 @@ import {
   Tag,
   message,
   Button,
+} from 'antd';
+import {
   DashboardOutlined,
   ShoppingOutlined,
   FileTextOutlined,
@@ -32,21 +32,14 @@ import {
   SafetyOutlined,
   CrownOutlined,
   SwapOutlined,
-  Header,
-  Sider,
-  Content,
-  Title,
-  Text,
-  Link,
-  useLocation,
-  useNavigate,
-  Outlet,
-  FC,
-} from '@/imports';
+} from '@ant-design/icons';
+import { Link, useLocation, useNavigate, Outlet } from 'react-router-dom';
+
+const { Header, Sider, Content } = Layout;
+const { Title, Text } = Typography;
 import type { MenuProps } from 'antd';
-import { UserProvider, useUser, MOCK_USERS, ROLE_CONFIG, FEATURES, PERMISSIONS } from '@/contexts/UserContext';
-import { LocaleProvider, useLocale } from '@/contexts/LocaleContext';
-import { ThemeProvider } from '@/contexts/ThemeContext';
+import { useUser, MOCK_USERS, ROLE_CONFIG, FEATURES, PERMISSIONS } from '@/contexts/UserContext';
+import { useLocale } from '@/contexts/LocaleContext';
 import ThemeSwitch from '@/components/ThemeSwitch';
 import Breadcrumb from '@/components/Breadcrumb';
 
@@ -592,15 +585,7 @@ const MainLayoutContent: FC = () => {
 };
 
 const MainLayout: FC = () => {
-  return (
-    <ThemeProvider>
-      <LocaleProvider>
-        <UserProvider>
-          <MainLayoutContent />
-        </UserProvider>
-      </LocaleProvider>
-    </ThemeProvider>
-  );
+  return <MainLayoutContent />;
 };
 
 export default MainLayout;