```

add new hooks for fetching QuizCRQuestions and categories, update related components to use the new hooks, and refactor SelectCategory page to use the new API
```

002_source/ionic_mobile/src/hooks/fetchCRQuestions.tsx

@@ -0,0 +1,30 @@
+import { idCard } from 'ionicons/icons';
+import { QuizCRQuestion } from '../types/QuizCRQuestion';
+import { usePocketBase } from './usePocketBase';
+import { QueryClient } from '@tanstack/react-query';
+import PocketBase from 'pocketbase';
+
+const queryClient = new QueryClient({
+  defaultOptions: {
+    queries: {
+      staleTime: Infinity,
+    },
+  },
+});
+
+const fetchCRQuestions = async (cat_id: string, pb: PocketBase) => {
+  const response = await queryClient.fetchQuery({
+    queryKey: ['fetchData', cat_id],
+    staleTime: 60 * 1000,
+    queryFn: async () => {
+      return await pb.collection('QuizCRQuestions').getList<QuizCRQuestion>(1, 9999, {
+        filter: `cat_id = "${cat_id}"`,
+        $autoCancel: false,
+      });
+    },
+  });
+
+  return response;
+};
+
+export default fetchCRQuestions;