blocker phase 6, catalog admin

client/src/services/catalog/hooks/useCreateOptionGroup.ts

@@ -0,0 +1,19 @@
+import { useMutation, useQueryClient } from '@tanstack/react-query';
+import { catalogApi } from '../apis';
+import { catalogKeys } from '../keys';
+import type { OptionGroupInput } from '../types';
+
+/**
+ * Adds a pricing dimension — invalidates every cached category's option-groups (admin + public), not
+ * just the current one, because a cross-category group (`serviceCategoryId: null`) affects all of them.
+ */
+export function useCreateOptionGroup() {
+  const queryClient = useQueryClient();
+  return useMutation({
+    mutationFn: (input: OptionGroupInput) => catalogApi.createOptionGroup(input),
+    onSuccess: () => {
+      queryClient.invalidateQueries({ queryKey: catalogKeys.adminOptionGroupsAll() });
+      queryClient.invalidateQueries({ queryKey: catalogKeys.categoryOptionGroupsAll() });
+    },
+  });
+}