- Introduced a new 'name' field as a required attribute in the order item schema.
- Added invoicing-related fields: 'invoicedAmountWithTax', 'invoicedAmount', 'invoicedQuantity', 'invoicedAmountRemaining', 'invoicedAmountWithTaxRemaining', and 'invoicedQuantityRemaining' to track invoicing status.
- Updated route handlers to accommodate the new 'name' field in order item creation and editing processes.
- Enhanced the recalculation logic to include remaining invoiced amounts and quantities.