feat: enhance booking flow with multi-route support and onboarding document integration

- Introduced multi-route functionality in the booking process, allowing users to add additional routes for general contracts.
- Updated the StepDocuments component to display onboarding documents automatically attached to bookings.
- Refactored Step4Route to manage extra routes and quantities dynamically.
- Improved Step8Review to reflect the new onboarding document handling and updated submission readiness checks.
- Added new API endpoints and services for managing contract route lines and rejecting bookings.
- Removed the allowConsolidation field from the booking model as it is now managed by the system.
- Created migrations for the new contract route lines table and updated related entities.

apps/edr-freight-api/src/modules/booking-orders/booking-orders.controller.ts

@@ -45,6 +45,15 @@ export class BookingOrdersController {
     return this.generalContractService.getQuantityLines(id);
   }
 
+  @Get('contract/:id/routes')
+  @ApiOperation({
+    summary:
+      'Per-route contracted / ordered / remaining quantities (multi-route contracts). Empty for single-route.',
+  })
+  async routes(@Param('id', ParseUUIDPipe) id: string) {
+    return this.generalContractService.getRouteLines(id);
+  }
+
   @Get(':id')
   @ApiOperation({ summary: 'Get a single booking order' })
   async findOne(@Param('id', ParseUUIDPipe) id: string) {