Use Zod v4 registry to get model registration info

[WilliamABradley]

The new .meta() function in zod v4 could be a nice way to be able to collect metadata for gqloom registration.

E.g.

export const SortDirection = z
  .enum(["ASC", "DESC"])
  .meta({ id: "SortDirection" });
export type SortDirection = z.infer<typeof SortDirection>;

I would expect the meta.id would be able to register with gqloom with a name of "SortDirection"

[xcfox]

Thank you for following GQLoom!

Using .meta() is a great idea!
I plan to map .meta({ title:"..." }) to GraphQL's __typename by default, while also allowing custom more complex behavior by reading configuration from GlobalMeta.

I will implement this feature in the next few days!