feat: implement QuestionBank CRUD with pagination and template query

- Add pagination support to findAll (page, limit query params)
- Add findByTemplateId method to service
- Add GET /by-template/:templateId endpoint to controller
- Service already includes CRUD for QuestionBank and QuestionBankItem

web/src/pages/workspace/PluginsPage.tsx

@@ -0,0 +1,12 @@
+import React from 'react';
+import { PluginsView } from '../../components/views/PluginsView';
+
+const PluginsPage: React.FC = () => {
+    return (
+        <div className="flex flex-col h-full">
+            <PluginsView />
+        </div>
+    );
+};
+
+export default PluginsPage;