chore: 初始化前端仓库并迁移 admin-ui

- 创建 rui-frontend 前端仓库
- 迁移 admin-ui 管理后台
- 创建 cashier-mobile 和 customer-mobile 占位项目
- 配置 pnpm workspace

admin-ui/vite.config.ts

@@ -0,0 +1,40 @@
+import { defineConfig } from 'vite'
+import vue from '@vitejs/plugin-vue'
+import { resolve } from 'path'
+import UnoCSS from 'unocss/vite'
+import AutoImport from 'unplugin-auto-import/vite'
+import Components from 'unplugin-vue-components/vite'
+import { ElementPlusResolver } from 'unplugin-vue-components/resolvers'
+import moduleBuildPlugin from './scripts/vite-plugin-module-build'
+
+export default defineConfig({
+  plugins: [
+    moduleBuildPlugin(),
+    vue(),
+    UnoCSS(),
+    AutoImport({
+      imports: ['vue', 'vue-router', 'pinia'],
+      resolvers: [ElementPlusResolver()],
+      dts: 'src/auto-imports.d.ts',
+    }),
+    Components({
+      resolvers: [ElementPlusResolver()],
+      dts: 'src/components.d.ts',
+    }),
+  ],
+  resolve: {
+    alias: {
+      '@': resolve(__dirname, 'src'),
+    },
+  },
+  server: {
+    port: 3000,
+    proxy: {
+      '/api': {
+        target: 'http://192.168.31.210:9300',
+        changeOrigin: true,
+        rewrite: (path) => path.replace(/^\/api/, ''),
+      },
+    },
+  },
+})