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/jest.config.js

@@ -1,23 +0,0 @@
-module.exports = {
-  moduleFileExtensions: [
-    'js',
-    'jsx',
-    'json',
-    'vue'
-  ],
-  transform: {
-    '^.+\\.vue$': 'vue-jest',
-    '.+\\.(css|styl|less|sass|scss|svg|png|jpg|ttf|woff|woff2)$': 'jest-transform-stub',
-    '^.+\\.jsx?$': 'babel-jest'
-  },
-  moduleNameMapper: {
-    '^@/(.*)$': '<rootDir>/src/$1'
-  },
-  snapshotSerializers: [
-    'jest-serializer-vue'
-  ],
-  testMatch: [
-    '**/tests/unit/**/*.spec.(js|jsx|ts|tsx)|**/__tests__/*.(js|jsx|ts|tsx)'
-  ],
-  testURL: 'http://localhost/'
-}