feat(proxy): 初始化代理服务器项目

- 添加 Dockerfile 用于容器化部署
- 配置 package.json 定义项目依赖与启动脚本
- 实现基于 Express 的 HTTP 代理服务器
- 集成 CORS 支持跨域请求处理
- 配置代理中间件转发请求到 anyrouter.top
- 添加请求日志与错误处理机制
- 支持通过环境变量配置端口
- 实现开发环境与生产环境的启动命令

Dockerfile

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+FROM node:18-alpine
+
+WORKDIR /app
+
+COPY package*.json ./
+
+RUN npm ci --only=production
+
+COPY . .
+
+EXPOSE 80 443
+
+CMD ["npm", "start"]

package.json

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+{
+  "name": "anyrouter-proxy",
+  "version": "1.0.0",
+  "description": "Proxy server for anyrouter.top",
+  "main": "proxy-server.js",
+  "scripts": {
+    "start": "node proxy-server.js",
+    "dev": "nodemon proxy-server.js"
+  },
+  "dependencies": {
+    "express": "^4.18.2",
+    "http-proxy-middleware": "^2.0.6",
+    "cors": "^2.8.5"
+  },
+  "devDependencies": {
+    "nodemon": "^3.0.1"
+  },
+  "keywords": ["proxy", "anyrouter", "express"],
+  "author": "",
+  "license": "MIT"
+}

proxy-server.js

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+const express = require('express');
+const { createProxyMiddleware } = require('http-proxy-middleware');
+const cors = require('cors');
+
+const app = express();
+const PORT = process.env.PORT || 80;
+
+app.use(cors({
+  origin: '*',
+  credentials: true,
+  methods: ['GET', 'POST', 'PUT', 'DELETE', 'OPTIONS'],
+  allowedHeaders: ['Content-Type', 'Authorization', 'X-Requested-With']
+}));
+
+const proxyOptions = {
+  target: 'https://anyrouter.top',
+  changeOrigin: true,
+  secure: true,
+  followRedirects: true,
+  headers: {
+    'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36'
+  },
+  onProxyReq: (proxyReq, req, res) => {
+    console.log(`Proxying: ${req.method} ${req.url} -> https://anyrouter.top${req.url}`);
+  },
+  onError: (err, req, res) => {
+    console.error('Proxy Error:', err.message);
+    res.status(500).json({ error: 'Proxy request failed', message: err.message });
+  }
+};
+
+app.use('/', createProxyMiddleware(proxyOptions));
+
+app.listen(PORT, '0.0.0.0', () => {
+  console.log(`Proxy server running on port ${PORT}`);
+  console.log(`Proxying requests to: https://anyrouter.top`);
+  console.log(`Access locally at: http://localhost:${PORT}`);
+});