fix: admin courses

src/store/auth.js

@@ -7,7 +7,12 @@ export const useAuthStore = defineStore('auth', () => {
   const user = ref(tokenService.getUserInfo())
 
   const isAuthenticated = computed(() => !!tokenService.getToken() && !!user.value)
-  const role = computed(() => user.value?.role || user.value?.roleName || null)
+  const role = computed(() => {
+    const u = user.value
+    if (!u) return null
+    if (Array.isArray(u.roles) && u.roles.length) return u.roles[0]
+    return u.role || u.roleName || null
+  })
 
   const setUser = (userData) => {
     user.value = userData