Download a GP worker payslip
Returns a pre-signed download URL for a specific Global Payroll (GP) employee payslip PDF. Use this after calling Retrieve employee payslips to obtain the payslipId. Requires the worker id (UUID) and the payslipId from the list response. The returned URL is temporary and should be used promptly to download the file. Supports only GP contract types.
**Token scopes**: `payslips:read`