将项目文件整理到 refer 目录

frontend/src/main.tsx

@@ -1,26 +0,0 @@
-import React from 'react'
-import ReactDOM from 'react-dom/client'
-import { RouterProvider } from 'react-router-dom'
-import { QueryClient, QueryClientProvider } from '@tanstack/react-query'
-import { router } from './router'
-import { ThemeProvider } from './components/ThemeProvider'
-import './index.css'
-
-const queryClient = new QueryClient({
-  defaultOptions: {
-    queries: {
-      staleTime: 5_000,           // 5s 内复用,与 §4.2 Repository 不变量一致
-      refetchOnWindowFocus: false,
-    },
-  },
-})
-
-ReactDOM.createRoot(document.getElementById('root')!).render(
-  <React.StrictMode>
-    <ThemeProvider>
-      <QueryClientProvider client={queryClient}>
-        <RouterProvider router={router} />
-      </QueryClientProvider>
-    </ThemeProvider>
-  </React.StrictMode>
-)