Initial commit: X-Server Mobile enterprise tool system

- Frontend: React 18 + TypeScript + Vite + Ant Design Mobile
- Backend: PHP 8.5 + Webman 2.x + MySQL + Redis
- i18n support: Chinese, English, Russian, Spanish, French
- Approval workflow engine
- Docker development environment
- Feishu integration

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

frontend/postcss.config.js

@@ -0,0 +1,20 @@
+// 动态计算 rem 基准，适应桌面浏览器和真实移动设备
+const setRootValue = () => {
+  // 桌面浏览器模拟移动端时，使用较小的基准
+  // 真实移动设备上，使用标准基准
+  return 16
+}
+
+export default {
+  plugins: {
+    'postcss-pxtorem': {
+      rootValue: setRootValue(),
+      propList: ['*'],
+      selectorBlackList: ['.no-rem'],
+      replace: true,
+      mediaQuery: false,
+      minPixelValue: 1,
+      exclude: /node_modules/i,
+    },
+  },
+}