Paginate a list view
Problem
You have a list endpoint and want to page through results without loading every row.
Solution
Read the page + size from the query string, clamp them, and translate to limit / offset on the queryset.
let page = params.page.max(1);
let size = params.size.clamp(1, 100);
let rows = Post::objects()
.order_by(&[("id", true)])
.limit(size)
.offset((page - 1) * size)
.fetch(&pool)
.await?;
Link headers
The pagination module emits RFC 5988 Link headers for next/prev so API clients can follow them.