[TASK] Create quotation operation helpers - Quotation-to-Invoice Workflow

[africanitem]

Task Details

Epic: #523 [EPIC] Quotation-to-Invoice Workflow E2E Tests

Dependencies

• Depends on: Epic [EPIC] Prerequisites and Test Data Setup Workflow E2E Tests #489

Success Criteria

• Helper functions in e2e/helpers/quotation-helpers.ts using pattern: QTN-${Date.now()}