refactor(frontend): migrate from Vite to Nuxt SPA

Replace Vite and Vue Router with Nuxt framework
Update Docker, build scripts, and env vars for Nuxt generate

frontend/pages/items/index.vue

@@ -0,0 +1,12 @@
+<script setup lang="ts">
+import ItemsList from '../../src/views/ItemsList.vue';
+
+definePageMeta({
+  name: 'item-list',
+  seo: { titleKey: 'pages.items.title', descriptionKey: 'pages.items.subtitle' }
+});
+</script>
+
+<template>
+  <ItemsList :event-only="false" />
+</template>