v2.2.1: frontend closed-source + Docker one-click deploy

- Remove frontend source code (now in private repo)
- Add pre-built frontend/dist/ with Nginx serving
- Simplify docker-compose.yml (no Node.js build needed)
- Update README with docs index and Docker deploy guide
- Add admin order list and AI analysis stats tabs
- Add quick trade API routes
- Clean up redundant files (package-lock.json, yarn.lock, .iml)
- Add GitHub Actions workflow for frontend update automation

quantdinger_vue/babel.config.js

@@ -1,30 +0,0 @@
-const IS_PROD = ['production', 'prod'].includes(process.env.NODE_ENV)
-const IS_PREVIEW = process.env.VUE_APP_PREVIEW === 'true'
-
-const plugins = []
-if (IS_PROD && !IS_PREVIEW) {
-  // 去除日志的插件，
-  plugins.push('transform-remove-console')
-}
-
-// lazy load ant-design-vue
-// if your use import on Demand, Use this code
-plugins.push(['import', {
-  'libraryName': 'ant-design-vue',
-  'libraryDirectory': 'es',
-  'style': true // `style: true` 会加载 less 文件
-}])
-
-module.exports = {
-  presets: [
-    '@vue/cli-plugin-babel/preset',
-    [
-      '@babel/preset-env',
-      {
-        'useBuiltIns': 'entry',
-        'corejs': 3
-      }
-    ]
-  ],
-  plugins
-}