Feature: convert JSON strings to object in to_list() / to_array() (optionally)

SDK

Python

Description

This is the other direction from #4060.

When a user calls to_list() in python or toArray() in Typescript, it would be nice to have an option to get the JSON values parsed for you into native objects. The default should remain to keep as strings, since that is the current behavior and we can't break user code.