List vendor bills
Returns a paginated list of vendor bills (AP invoices) for the entity. Supports filtering by
vendor_account_id, status (draft / pending_approval / approved / partially_paid / paid /
void), and date_range. Results are cursor-paginated using next_cursor.
Requires purchasing:read scope.
Authorizations
API key issued per entity via Settings > Developers > API Keys.
Each key carries scopes (e.g. orders:read, products:write).
Bearer token format: Authorization: Bearer ark_live_ent_Test keys use ark_test_ent_. Both are issued per entity
via Settings > Developers > API Keys.
Query Parameters
x <= 100Filter bills created on or after this timestamp (ISO 8601).
Filter bills created on or before this timestamp (ISO 8601).
Filter bills with due_date on or before this date (ISO 8601 date). Pass today's date to get overdue bills only, or today + N days for the "due in N days" window.
data.lines, data.lines.product, data.payments, data.gl_entries, data.vendor, data.purchase_order 
