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/authService.ts

@@ -0,0 +1,45 @@
+import { API_BASE_URL } from '../utils/constants';
+import { apiClient } from './apiClient';
+
+interface AuthResponse {
+  access_token: string;
+}
+
+export const authService = {
+  async login(username: string, password: string): Promise<AuthResponse> {
+    const language = localStorage.getItem('userLanguage') || 'ja';
+    const response = await fetch(`${API_BASE_URL}/auth/login`, {
+      method: 'POST',
+      headers: {
+        'Content-Type': 'application/json',
+        'x-user-language': language,
+      },
+      body: JSON.stringify({ username, password }),
+    });
+
+    if (!response.ok) {
+      const errorData = await response.json();
+      throw new Error(errorData.message || 'Login failed');
+    }
+
+    return response.json();
+  },
+
+
+
+  async getProfile(token: string): Promise<any> {
+    const response = await apiClient.request('/auth/profile', {
+      method: 'GET',
+      headers: {
+        'Content-Type': 'application/json',
+      },
+    });
+
+    if (!response.ok) {
+      const errorData = await response.json();
+      throw new Error(errorData.message || 'Failed to fetch profile');
+    }
+
+    return response.json();
+  },
+};