fix(hadis): paginate book editions endpoint and remove N+1 queries

- Use OptionalPagination on AdminBookEditionViewSet (page/page_size), keep full list when not requested
- Extend edition search to title, publisher, year and connected book titles
- Add select_related/prefetch_related and use prefetched data in AdminBookEditionSerializer (54 -> 6 queries per page)
- Add books_detail field; fix editors update logic being nested under wrong condition
- Fallback book_reference to first connected book when missing

apps/hadis/views_admin.py

@@ -2565,13 +2565,19 @@ class AdminBookEditionViewSet(ModelViewSet):
 
     serializer_class = AdminBookEditionSerializer
 
-    pagination_class = None
+    pagination_class = OptionalPagination
 
 
 
     def get_queryset(self):
 
-        queryset = BookEdition.objects.all().prefetch_related("books", "volumes")
+        queryset = BookEdition.objects.all().select_related(
+            "tag",
+            "publisher_item__city__country",
+            "publisher_item__country",
+            "city_of_publication_city__country",
+            "country_of_publication_country",
+        ).prefetch_related("books", "volumes", "researchers", "editors")
 
         book_reference_id = self.request.query_params.get("book_reference_id")
 
@@ -2583,9 +2589,13 @@ class AdminBookEditionViewSet(ModelViewSet):
         if search_query:
             from django.db.models import Q
             queryset = queryset.filter(
+                Q(title__icontains=search_query) |
                 Q(edition_number__icontains=search_query) |
-                Q(isbn__icontains=search_query)
-            )
+                Q(publisher__icontains=search_query) |
+                Q(year_of_publication__icontains=search_query) |
+                Q(isbn__icontains=search_query) |
+                Q(books__title__icontains=search_query)
+            ).distinct()
 
         return queryset.order_by("-created_at")