TypeChat integration

[pelikhan]

Integrate or replcaite TypeChat like reflection where one can define a schema from a type instead of JSON schema.

[enoch3712]

@pelikhan Best option as discussed:

https://microsoft.github.io/genaiscript/guides/zod-schema/

[pelikhan]

So the issue with Zod is that we bundle all the type information in genaiscript.d.ts and I don't know how much typescript definition we would need to make it work. What we really want is a mini-Zod like library that only supports the subset of JSON schemas defined in genaiscript

(JSON schema can be more complex than what LLM can typically handle)

[pelikhan]

But yeah a runtime api to build a schema in a fluent way would be noice