Add Secure and SameSite=Lax flags to all cookie operations

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/module/apiError.js

@@ -4,6 +4,7 @@ import pinia from '@/stores/main.ts';
 import {useToast} from 'vue-toast-notification';
 import 'vue-toast-notification/dist/theme-sugar.css';
 import axios from "axios";
+import { deleteCookie } from "@/utils/cookieUtil.js";
 
 const loading = loadingStore(pinia);
 const $toast = useToast();
@@ -19,7 +20,7 @@ const delay = (s = 0) =>  new Promise((resolve, reject) => setTimeout(resolve, s
 export default async function apiError(error, toastMessage) {
   if(error.request?.status === 401) {
     delete axios.defaults.headers.common["Authorization"];
-    document.cookie = 'luciaToken=; expires=Thu, 01 Jan 1970 00:00:00 UTC;';
+    deleteCookie("luciaToken");
     return router.push('/login');
   }
   await delay();