[TASK] Create closing workflow operation helpers - Month-End Closing Workflow

[africanitem]

Task Details

Epic: #613 [EPIC] Month-End Closing Workflow E2E Tests

Dependencies

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

Success Criteria

• Helper functions in e2e/helpers/closing-workflow-helpers.ts for month-end closing operations