Add support for SiliconFlow API

[xbot]

🚀 Feature Request

Support SiliconFlow API.

🔈 Motivation

SiliconFlow provides 20,000,000 free tokens for the DeepSeek model.

🛰 Alternatives

📎 Additional context

[github-actions]

Hello @xbot, thanks for your first issue and interest in our work 😊!

If this is a bug report, please provide screenshots, relevant logs and minimum viable code to reproduce your issue, which will help us debug the problem.

[warvyvr]

Hi,
just notice SiliconFlow supports OpenAI interface, you can directly config in config file like:

model:
  model_name: openai/<your model name>
  api_key:<your api key>
  api_base: https://api.siliconflow.cn/v1