feat: Implement general contract booking orders functionality

- Add DTOs for creating booking orders and viewing contract quantities.
- Create entities for booking orders and booking order lines.
- Implement service for managing general contract operations, including activation after payment and retrieving quantity lines.
- Develop UI components for contract detail and list pages, including order placement dialog.
- Integrate API service for booking orders, enabling listing and creating orders against contracts.
- Enhance contract status display and quantity pool visualization in the UI.

apps/edr-freight-api/src/modules/bookings/booking-reference-data.service.ts

@@ -59,6 +59,7 @@ export function buildCargoTypeTree(
           name: child.cargoTypeName,
           code: child.code,
           show_free_text_box: child.showFreeTextBox,
+          unit_of_measure: child.unitOfMeasure ?? null,
         }),
       );