# Server PORT=3000 NODE_ENV=development # JWT JWT_SECRET=your-super-secret-jwt-key-change-in-production JWT_EXPIRES_IN=7d JWT_REFRESH_EXPIRES_IN=30d # Database (腾讯云PostgreSQL) DB_HOST=postgres.ap-shanghai.myqcloud.com DB_PORT=5432 DB_NAME=qia DB_USER=qia_admin DB_PASSWORD=your-database-password # DeepSeek AI DEEPSEEK_API_KEY=sk-xxx DEEPSEEK_API_URL=https://api.deepseek.com/chat/completions # CORS CORS_ORIGIN=http://localhost:5173