feat: add admin auth middleware

frontend/admin/src/api/httpClient.js

@@ -1,3 +1,4 @@
+import { useAuthStore } from '@/stores/auth';
 import axios from 'axios';
 
 // Create axios instance with default config
@@ -12,11 +13,10 @@ const httpClient = axios.create({
 // Request interceptor
 httpClient.interceptors.request.use(
     config => {
-        // You can add auth token here if needed
-        // const token = localStorage.getItem('token');
-        // if (token) {
-        //   config.headers.Authorization = `Bearer ${token}`;
-        // }
+        const authStore = useAuthStore();
+        if (authStore.isAuthenticated && authStore.token) {
+            config.headers.Authorization = `Bearer ${authStore.token}`;
+        }
         return config;
     },
     error => {