feat(frontend): add frontend-v2 modular architecture (Task 17)

- React 19 + TypeScript + Vite
- Module registration mechanism with dynamic loading
- Permission management system (basic/advanced/premium)
- Route guards for access control
- Error boundaries for module isolation
- 6 business module placeholders (AIA/ASL/PKB/DC/SSA/ST)
- Top navigation layout
- Tailwind CSS 3 + Ant Design 5

frontend-v2/src/App.tsx

@@ -0,0 +1,59 @@
+import { BrowserRouter, Routes, Route, Navigate } from 'react-router-dom'
+import { ConfigProvider } from 'antd'
+import zhCN from 'antd/locale/zh_CN'
+import { PermissionProvider } from './framework/permission'
+import { RouteGuard } from './framework/router'
+import MainLayout from './framework/layout/MainLayout'
+import HomePage from './pages/HomePage'
+import { MODULES } from './framework/modules/moduleRegistry'
+
+/**
+ * 应用根组件
+ * 
+ * @description 
+ * - ConfigProvider: Ant Design国际化配置
+ * - PermissionProvider: 权限管理系统（Week 2 Day 7新增）
+ * - RouteGuard: 路由守卫保护（Week 2 Day 7新增）⭐
+ * - BrowserRouter: 前端路由
+ * 
+ * @version Week 2 Day 7 - 任务17：完整版权限系统
+ */
+function App() {
+  return (
+    <ConfigProvider locale={zhCN}>
+      {/* 权限提供者：提供全局权限状态 */}
+      <PermissionProvider>
+        <BrowserRouter>
+          <Routes>
+            <Route path="/" element={<MainLayout />}>
+              {/* 首页 */}
+              <Route index element={<HomePage />} />
+              
+              {/* 动态加载模块路由 - 应用路由守卫保护 ⭐ */}
+              {MODULES.map(module => (
+                <Route
+                  key={module.id}
+                  path={`${module.path}/*`}
+                  element={
+                    // 为每个模块添加路由守卫
+                    <RouteGuard
+                      requiredVersion={module.requiredVersion}
+                      moduleName={module.name}
+                    >
+                      <module.component />
+                    </RouteGuard>
+                  }
+                />
+              ))}
+              
+              {/* 404重定向 */}
+              <Route path="*" element={<Navigate to="/" replace />} />
+            </Route>
+          </Routes>
+        </BrowserRouter>
+      </PermissionProvider>
+    </ConfigProvider>
+  )
+}
+
+export default App