fix bg tasks

tournaments/management/commands/check_deadlines.py

@@ -1,10 +1,12 @@
 from django.core.management.base import BaseCommand
 from tournaments.tasks import check_confirmation_deadlines
+from background_task.models import Task
 
 class Command(BaseCommand):
     help = 'Run confirmation deadline check immediately'
 
     def handle(self, *args, **options):
         # Run the function directly (not through the task queue)
+        Task.objects.filter(task_name='tournaments.tasks.check_confirmation_deadlines').delete()
         check_confirmation_deadlines()
         self.stdout.write(self.style.SUCCESS('Successfully checked confirmation deadlines'))