Chat-py: A Python port of Vercel's chat SDK

Hey there HN!

I loved the chat sdk for node, but I wanted to use it in Python, so I let my agent-swarm run in the night to port it (it only costed $500 in claude usage xD).

Performing some E2E tests now, and will be releasing to pypi as `chat-py` with the adapters as separate packages (as the chat sdk).

My goal is to keep it in sync on a daily basis.

Cheers!