Recursive schemas

[maxijonson]

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Feature Request

It would be nice to support recursive schemas like how Zod [handles them with z.lazy](https://zod.dev/?id=recursive-types).

I'm able to make this recursion in the Sanity schema, but having a hard time building the query with groqd (if that's even possible).

Right now, I would just query the whole field with `subcategories: q("subcategories")` and parse it manually with Zod as a second step, after running the query.

It's worth noting I'm currently on v0, but could explore upgrading to v1 if it's not possible in v0.