Add health check endpoint and update Docker Compose configuration

- Add HealthCheckView to authapp
- Update authapp/urls.py to include health check
- Update docker-compose.yml for backend services
- Add frontend service to docker-compose.yml
- Add external config for frontend

authapp/urls.py

@@ -1,9 +1,10 @@
 from django.urls import path
-from .views import CustomAuthToken, RegenerateTokenView, VerifyTokenView, get_csrf_token
+from .views import CustomAuthToken, RegenerateTokenView, VerifyTokenView, get_csrf_token, HealthCheckView
 
 urlpatterns = [
     path('login/', CustomAuthToken.as_view(), name='login'),
     path('regenerate-token/', RegenerateTokenView.as_view(), name='regenerate-token'),
     path('verify-token/', VerifyTokenView.as_view(), name='verify-token'),
-     path('get-csrf-token/', get_csrf_token, name='get-csrf-token'),
+    path('get-csrf-token/', get_csrf_token, name='get-csrf-token'),
+    path('health/', HealthCheckView.as_view(), name='health-check'),
 ]