InferProps keeps Promise and Response for a withValidator loader #478

InferProps gives the props of a defineHandler loader, but not of a defineHandler.withValidator one:

export const loader = defineHandler.withValidator({
  params: z.object({ id: z.string() }),
})(async (c, { params }) => {
  const book = await findBook(params.id);
  if (!book) return c.notFound();
  return { book };
});

type Props = InferProps<typeof loader>;
// expected: { book: Book }
// actual:   Promise<Response | { book: Book }>

defineHandler returns TypedHandler<{}, Exclude<Awaited<R>, Response>>, but withValidator returns TypedHandler<V, R> with the raw R. Routes don't notice, because the generated types wrap the output in Serialize<Awaited<…>>. InferProps reads __output directly, so it breaks.

Returning Exclude<Awaited<R>, Response> from withValidator too fixes it. Fix and a type test: ashunar0@07c5352

Happy to open a PR if that works for you.