The examples folder needs to be explicitly included in the Vercel Serverless bundle. Because it's at the root of the monorepo rather than being within the `app/docs` folder, we copy it over pre-build (and pre-dev).
Test the examples/prompts fix by re-enabling revalidations on graphql pages. Added a temp version of the fetch function so we can gradually reenable and monitor Vercel error rates over time.
This produces more complete type information (unions, following type alias refererences that aren't successfully dereferenced at an earlier stage, etc.), in a format that is much easier to query from UI components. Also adds a snapshot test for easier future iteration.
I had a lot of trouble configuring Jest for the snapshot tests (something to do with imports and compile targets), and there are zero other tests in this directory right now, so I just tore out the test setup and replaced it with Vitest. Much faster!