[Utoopack] Error: Library chunking context does not support chunk groups

### What happened?

复现仓库: https://github.com/ant-design/x
分支: feature_markdown_component

```bash
ut i 
cd packages/x
npm run compile
```

<img width="2602" height="966" alt="Image" src="https://github.com/user-attachments/assets/7ffb51d4-9b1c-4f8c-aeb4-0b1bf6aad355" />

### Expected result

能正常构建