feat: Implement core course management, enrollment, and classroom learning functionalities with new composables and components.

Frontend-Learner/composables/useAuth.ts

@@ -451,6 +451,12 @@ export const useAuth = () => {
     token.value = null
     refreshToken.value = null // ลบ Refresh Token
     user.value = null
+    
+    // Reset client-side storage
+    if (import.meta.client) {
+      localStorage.clear()
+    }
+
     const router = useRouter()
     router.push('/auth/login')
   }