Added pydantic query wrapper code

[keell0renz]

So, I added at this point a wrapper of .scrape function which gets dict, and tries to put that into pydantic class. schema is taken from inserted pydantic class.

Future considerations:

1. Implement server-side validation with jsonschema so agent outputs valid JSON
2. Add a return type like QueryResponse which would contain generic of response pydantic class + screenshot and other metadata

At this point it is nice as a prototype to test demand.

I did not test it practically because I believe it has no things to break, just a wrapper with functions with known behavior. If scrape itself works this will work.

Thanks @justinsunyt !

[justinsunyt]

LGTM!