Fix Pagination Consistency on Ordered List Endpoints

List endpoints whose collections have a display order — courses sections and lessons, form field options, fulfillment locations, sales opportunities, pipeline stages, store upsells, and email templates — could skip or duplicate records when following the Pagination-Next cursor after items had been reordered. Pagination on these endpoints is now fully consistent: following the cursor returns every record exactly once.

Additionally, the endpoints that return a sort_order attribute (courses sections and lessons, pipeline stages, and fulfillment locations) now accept sort_property=sort_order, letting you page through records in their display order.

Resources: Courses::Section — and the Courses skill shows how display-order sorting and cursor pagination compose when reading a course back.