本地跑LiteLLM的GPT输出是文本，不画图

<img width="3827" height="1879" alt="Image" src="https://github.com/user-attachments/assets/6171f4c0-176c-4ec9-8621-92e41842bfda" />

```
docker run -d -p 38900:3000 \
  -e AI_PROVIDER=openai \
  -e AI_MODEL=gpt-5-chat-2025-08-07\
  -e OPENAI_API_KEY=\
  -e OPENAI_BASE_URL=https://litellm.mybigai.ac.cn\
  ghcr.io/dayuanjiang/next-ai-draw-io:latest
```
用这个命令运行的docker