feat(nav): add NavGroup and NavItem components for navigation structure

package.json

@@ -46,13 +46,15 @@
     "@pinia/nuxt": "^0.5.2",
     "@tailwindcss/typography": "^0.5.13",
     "@types/markdown-it": "^13.0.9",
+    "@types/node": "^25.2.2",
     "@vite-pwa/nuxt": "^0.5.0",
     "@vueuse/core": "^10.11.1",
     "@vueuse/nuxt": "^10.11.1",
     "dayjs-nuxt": "^2.1.9",
     "oxfmt": "^0.28.0",
     "oxlint": "^1.43.0",
-    "sass": "^1.77.8"
+    "sass": "^1.77.8",
+    "typescript": "^5.9.3"
   },
   "peerDependencies": {
     "dayjs": "^1.11.12",