Returns a paginated list of the company's bills ("boletas/facturas de Cardda"):
the monthly billing documents that aggregate Cardda's commission charges.

Scope

Company users only see bills for companies they are a member of (via their
company memberships). Cardda staff see all bills.

Filtering, sorting, pagination

Supports the standard list controls: _start/_end for pagination,
_field/_order for sorting, and per-field filters. A filter value can be a
plain value (exact match) or a JSON string with an operator, e.g.
status={"$in":["issued","preissued"]}.

Response

Each bill includes charges_with_descriptions, a human-readable breakdown of the
per-product charges.