# 职引后端环境变量配置 # MongoDB MONGODB_URI=mongodb://localhost:27017/zhiyin # AI 主服务商 - opencode-go (deepseek-v4-flash) AI_PRIMARY_URL=https://opencode.ai/zen/go/v1 AI_PRIMARY_KEY=your_primary_api_key_here AI_PRIMARY_MODEL=deepseek-v4-flash # AI 备用服务商 - NVIDIA (stepfun-ai/step-3.5-flash) AI_BACKUP_URL=https://integrate.api.nvidia.com/v1 AI_BACKUP_KEY=your_backup_api_key_here AI_BACKUP_MODEL=stepfun-ai/step-3.5-flash # 服务端口 PORT=3000