Missing Zod array introspection when generating OpenAPI spec.

[HamishWHC]

Simple example:

export const example = base.prefix("/example").router({
	example: base
		.route({ path: "/" })
		.output(
			z.object({
				body: z.object({
					items: z.array(z.string()),
				}),
			}),
		)
		.handler(() => {
			return {
				body: { items: [] },
			};
		}),
});

The above example generates the following OpenAPI schema for its output:

"application/json": {
    "schema": {
        "type": "object",
        "properties": { "items": { "type": "array" } },
        "required": ["items"]
    }
}

This is missing information about the elements of the array and seems to be a bug.

Thanks for your work on this library!

[dinwwwh]

I will working on this soon, now I need to finish rewrite builders first.