Add production Docker setup and update backend/frontend configs

Introduces .dockerignore, production Dockerfile and nginx config for frontend, and refactors docker-compose.yml for multi-service deployment. Updates backend and frontend code to support public API tagging, improves refund handling, adds test email endpoint, and migrates Orval config to TypeScript. Removes unused frontend Dockerfile and updates dependencies for React Query and Orval.

backend/commerce/tasks.py

@@ -1,10 +1,13 @@
-from .models import Order
 from account.models import User
 from account.tasks import send_email_with_context
 from celery import shared_task
 
+from django.apps import apps
 from django.utils import timezone
 
+Order = apps.get_model('commerce', 'Order')
+
+
 def delete_expired_orders():
     expired_orders = Order.objects.filter(status=Order.STATUS_CHOICES.CANCELLED, created_at__lt=timezone.now() - timezone.timedelta(hours=24))
     count = expired_orders.count()