generic-paged-db-accumulator

One reusable helper that reads an entire table through a (limit, offset) data-access function in a bounded loop, stopping on the first short page — plus when reading everything is legitimate (export, backup, bulk mapping) and the smell that means you needed a real query instead. Use when several repositories each hand-roll the same paging loop, or when a "read all" call gets slower than linearly as the table grows.