Type instantiation is excessively deep and possibly infinite.

### Description

Using:
```
zod: "^3.25.76"
@ai-sdk/openai: "^2.0.0-beta.5",
ai: "^5.0.0-beta.11",
```

I get the above typescript error when defining a tool.
I use the example ai-chatbot app as reference..

going to version 4 of `ai` and `ai-sdk` works fine.

Honestly, documentation for version 4 installation is totally unhelpful.

### AI SDK Version

_No response_