Add operators and property owners functionality

- Implemented OperatorListView and OperatorDetailView for managing operators.
- Created corresponding templates for operator listing and detail views.
- Added PropertyOwnerListView and PropertyOwnerDetailView for managing property owners.
- Developed templates for property owner listing and detail views.
- Established relationships between parks and operators, and parks and property owners in the models.
- Created migrations to reflect the new relationships and fields in the database.
- Added admin interfaces for PropertyOwner management.
- Implemented tests for operators and property owners.

property_owners/views.py

@@ -0,0 +1,43 @@
+from django.views.generic import ListView, DetailView
+from django.db.models import QuerySet
+from django.core.exceptions import ObjectDoesNotExist
+from core.views import SlugRedirectMixin
+from .models import PropertyOwner
+from typing import Optional, Any, Dict
+
+
+class PropertyOwnerListView(ListView):
+    model = PropertyOwner
+    template_name = "property_owners/property_owner_list.html"
+    context_object_name = "property_owners"
+    paginate_by = 20
+
+    def get_queryset(self) -> QuerySet[PropertyOwner]:
+        return PropertyOwner.objects.all().order_by('name')
+
+
+class PropertyOwnerDetailView(SlugRedirectMixin, DetailView):
+    model = PropertyOwner
+    template_name = "property_owners/property_owner_detail.html"
+    context_object_name = "property_owner"
+
+    def get_object(self, queryset: Optional[QuerySet[PropertyOwner]] = None) -> PropertyOwner:
+        if queryset is None:
+            queryset = self.get_queryset()
+        slug = self.kwargs.get(self.slug_url_kwarg)
+        if slug is None:
+            raise ObjectDoesNotExist("No slug provided")
+        property_owner, _ = PropertyOwner.get_by_slug(slug)
+        return property_owner
+
+    def get_queryset(self) -> QuerySet[PropertyOwner]:
+        return PropertyOwner.objects.all()
+
+    def get_context_data(self, **kwargs) -> Dict[str, Any]:
+        context = super().get_context_data(**kwargs)
+        property_owner = self.get_object()
+        
+        # Add related parks to context (using related_name="owned_parks" from Park model)
+        context['owned_parks'] = property_owner.owned_parks.all().order_by('name')
+        
+        return context