fix : redirection après login + écran des heures chauffeurs

frontend/pages/login.vue

@@ -68,7 +68,8 @@ const handleSubmit = async () => {
     try {
         await auth.login(username.value, password.value)
 
-        await router.push('/calendar')
+        const isAdmin = auth.user?.roles?.includes('ROLE_ADMIN')
+        await router.push(isAdmin ? '/calendar' : '/hours')
     } finally {
         isSubmitting.value = false
     }