Enhance clearance milestone management and introduce new contract actions

- Added new milestones for 'Transit Permit Uploaded' and 'Export Transport Document Issued' in the clearance milestone catalog.
- Implemented methods in ClearanceMilestoneService to skip milestones and complete them with metadata.
- Updated ContractBookingService to check boundary conditions before booking creation.
- Introduced new endpoints in ContractsController for uploading customs declarations, advising duty, and handling various document uploads.
- Enhanced the UI to support new clearance actions and display relevant components based on milestone statuses.

apps/edr-freight-api/src/modules/train-scheduling/train-scheduling.module.ts

@@ -25,6 +25,7 @@ import { TrainSchedulingService } from './train-scheduling.service';
 import { BookingBatchService } from './booking-batch.service';
 import { BookingNotifierService } from './booking-notifier.service';
 import { NotificationsModule } from '../notifications/notifications.module';
+import { ContractsModule } from '../contracts/contracts.module';
 
 @Module({
   imports: [
@@ -49,6 +50,7 @@ import { NotificationsModule } from '../notifications/notifications.module';
     TrainSchedulesModule,
     forwardRef(() => WarehousesModule),
     RuleEngineModule,
+    forwardRef(() => ContractsModule),
   ],
   controllers: [TrainSchedulingController],
   providers: [