# 数据库配置 DB_HOST=localhost DB_PORT=3306 DB_USER=root DB_PASSWORD=your_password DB_NAME=ai_nav # 安全配置 SECRET_KEY=your-secret-key-here # 运行环境 (development/production) FLASK_ENV=development # DeepSeek API配置 DEEPSEEK_API_KEY=your_deepseek_api_key_here DEEPSEEK_BASE_URL=https://api.deepseek.com