Explicit pagination for Dodo Payments list operations.

Start with the first page returned by a resource function. Use next/1 when request boundaries matter, or opt into a lazy bounded traversal with pages/2 or stream/2.

{:ok, first} = DodoPayments.Products.list(client, %{page_number: 0})

with {:ok, second} <- DodoPayments.Page.next(first) do
  second.items
end

first
|> DodoPayments.Page.stream(max_pages: 20)
|> Enum.take(100)

Automatic traversal is deliberately guarded. It detects repeated iterators or page numbers and defaults to at most 1,000 pages. Page structs retain a private fetch closure containing client/request state; consume them during the request workflow and persist only application data, never the page struct itself.