Add families list, member kind filter, sidebar counters, pagination

New Families list page (parents/children columns, edit goes to the
detail view). Members list gets a member/guardian/both filter so
guardians aren't just invisible. Sidebar now shows live counts for
pending parent claims and games missing a referee, always numeric.
Member, event, team, group, news and family lists are paginated with
a shared pager partial that preserves the query string.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

management/urls.py

@@ -24,6 +24,7 @@ urlpatterns = [
     path("members/<uuid:pk>/grant-login/", views.MemberGrantLoginView.as_view(), name="member_grant_login"),
     path("members/<uuid:pk>/referee-eligibility/", views.MemberRefereeEligibilityUpdateView.as_view(), name="member_referee_eligibility_update"),
     path("members/<uuid:pk>/detach-family/<uuid:family_pk>/", views.MemberDetachFromFamilyView.as_view(), name="member_detach_family"),
+    path("families/", views.FamilyListView.as_view(), name="family_list"),
     path("families/new/", views.FamilyCreateView.as_view(), name="family_create"),
     path("families/<uuid:pk>/", views.FamilyDetailView.as_view(), name="family_detail"),
     path("families/<uuid:pk>/add-child/", views.FamilyAddChildView.as_view(), name="family_add_child"),