Feature Request: Add pre_model_hook Support

[lukabarbakadze]

Hey, thanks for the awesome work on this repo!

I noticed that langgraph_supervisor uses react_agent, which supports a pre_model_hook — but I don’t think there’s a way to pass that through in the current implementation.

It’d be super helpful to have that exposed, especially to customize or filter the message history before the model gets called.

Would love to see this added — happy to test or open a PR if helpful. Thanks!

[vbarda]

agreed, we'll expose!

[vbarda]

Added support in #184 released in 0.0.27