# 服务配置 PORT=3000 NODE_ENV=development # MongoDB MONGODB_URI=mongodb://localhost:27017/audio-book # JWT JWT_SECRET=your-super-secret-jwt-key-change-in-production JWT_EXPIRES_IN=7d # 阿里云 TTS ALIYUN_ACCESS_KEY=sk-c25679401ba24c749f53be86b0c9a7a6 ALIYUN_ACCESS_SECRET=your-access-secret ALIYUN_APP_KEY=your-app-key