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/habitats/[id]/edit.vue

@@ -0,0 +1,20 @@
+<script setup lang="ts">
+import type { RouteLocationNormalizedLoaded } from 'vue-router';
+import HabitatDetail from '../../../src/views/HabitatDetail.vue';
+
+definePageMeta({
+  name: 'habitat-edit',
+  requiredPermission: 'habitats.update',
+  editorModal: true,
+  seo: {
+    titleKey: 'pages.habitats.detailKicker',
+    descriptionKey: 'pages.habitats.editSubtitle',
+    canonicalPath: (route: RouteLocationNormalizedLoaded) => `/habitats/${String(route.params.id)}`,
+    noindex: true
+  }
+});
+</script>
+
+<template>
+  <HabitatDetail />
+</template>

frontend/pages/habitats/[id]/index.vue

@@ -0,0 +1,12 @@
+<script setup lang="ts">
+import HabitatDetail from '../../../src/views/HabitatDetail.vue';
+
+definePageMeta({
+  name: 'habitat-detail',
+  seo: { titleKey: 'pages.habitats.detailKicker', descriptionKey: 'pages.habitats.subtitle' }
+});
+</script>
+
+<template>
+  <HabitatDetail />
+</template>