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/services/templateService.ts

@@ -0,0 +1,28 @@
+import { apiClient } from './apiClient';
+import { AssessmentTemplate, CreateTemplateData, UpdateTemplateData } from '../types';
+
+export const templateService = {
+  async getAll(): Promise<AssessmentTemplate[]> {
+    const response = await apiClient.get<AssessmentTemplate[]>('/assessment/templates');
+    return response.data;
+  },
+
+  async getById(id: string): Promise<AssessmentTemplate> {
+    const response = await apiClient.get<AssessmentTemplate>(`/assessment/templates/${id}`);
+    return response.data;
+  },
+
+  async create(data: CreateTemplateData): Promise<AssessmentTemplate> {
+    const response = await apiClient.post<AssessmentTemplate>('/assessment/templates', data);
+    return response.data;
+  },
+
+  async update(id: string, data: UpdateTemplateData): Promise<AssessmentTemplate> {
+    const response = await apiClient.put<AssessmentTemplate>(`/assessment/templates/${id}`, data);
+    return response.data;
+  },
+
+  async delete(id: string): Promise<void> {
+    await apiClient.delete(`/assessment/templates/${id}`);
+  },
+};