feat: "spa", but more like single entry-point

polylan_submitter/src/App.vue

@@ -0,0 +1,23 @@
+<script setup lang="ts">
+import { onMounted } from "vue";
+import { RouterView } from "vue-router";
+import AppHeader from "@/layout/AppHeader.vue";
+import AppFooter from "@/layout/AppFooter.vue";
+import { useUserStore } from "@/stores/user";
+
+const userStore = useUserStore();
+
+onMounted(() => {
+  userStore.loadUserData();
+});
+</script>
+
+<template>
+  <div class="min-h-screen flex flex-col">
+    <AppHeader />
+    <main class="flex-1 flex flex-col">
+      <RouterView />
+    </main>
+    <AppFooter />
+  </div>
+</template>