feat(rbac): add permission_state filter

api/src/backend/api/filters.py

@@ -485,6 +485,29 @@ class UserFilter(FilterSet):
 class RoleFilter(FilterSet):
     inserted_at = DateFilter(field_name="inserted_at", lookup_expr="date")
     updated_at = DateFilter(field_name="updated_at", lookup_expr="date")
+    permission_state = CharFilter(method="filter_permission_state")
+
+    def filter_permission_state(self, queryset, name, value):
+        permission_fields = [
+            "manage_users",
+            "manage_account",
+            "manage_billing",
+            "manage_providers",
+            "manage_integrations",
+            "manage_scans",
+        ]
+
+        q_all_true = Q(**{field: True for field in permission_fields})
+        q_all_false = Q(**{field: False for field in permission_fields})
+
+        if value == "unlimited":
+            return queryset.filter(q_all_true)
+        elif value == "nopermissions":
+            return queryset.filter(q_all_false)
+        elif value == "limited":
+            return queryset.exclude(q_all_true | q_all_false)
+        else:
+            return queryset.none()
 
     class Meta:
         model = Role