Implement clearance-first booking flow and completion process for customs contracts

apps/edr-freight-api/src/modules/train-scheduling/booking-window.service.ts

@@ -357,6 +357,10 @@ export class BookingWindowService implements OnModuleInit {
       this.logger.log(
         `[WINDOW] ${schedule.id} conclude → train FULL — window DONE, finalizing`,
       );
+      // This train is done. If no other train on the route-day can still take
+      // the waiting list, those bookings have nowhere to go — expire + notify
+      // them now instead of leaving them FULLY_EXECUTED forever.
+      await this.bookingBatchService.expireLeftoverDayPool(schedule.id);
       return;
     }
 
@@ -390,6 +394,9 @@ export class BookingWindowService implements OnModuleInit {
         `[WINDOW] ${schedule.id} conclude → not full but no cycle fits before ` +
           `departure — window DONE`,
       );
+      // No further cycle on this train. Same sweep as the FULL branch: if no
+      // sibling train can still take the day's waiting list, expire + notify.
+      await this.bookingBatchService.expireLeftoverDayPool(schedule.id);
       return;
     }