List credit notes

A paginated list of credit notes, filtered by type (sales or purchase, default sales), status, contactId, and an issue-date range (from, to).

The collection is wrapped under a named key, data.creditNotes, and meta carries page, perPage, total and pages. Each row is the lighter projection: header totals in integer pence, the contact summary, the status, and the live allocatedTotal and remaining under settlement. Lines and the allocation entries are on the single-note object, not the list.