chore: 导入Directus依赖

- 导入Directus SDK
- 配置Directus RuntimeConfig

package.json

@@ -11,6 +11,7 @@
     "prepare": "husky"
   },
   "dependencies": {
+    "@directus/sdk": "^20.1.0",
     "@mdi/font": "^7.4.47",
     "@nuxt/eslint": "1.8.0",
     "@nuxt/fonts": "0.11.4",
@@ -28,6 +29,7 @@
     "markdown-it": "^14.1.0",
     "meilisearch": "^0.53.0",
     "nuxt": "^4.0.3",
+    "nuxt-directus": "5.7.0",
     "sass": "^1.90.0",
     "sharp": "^0.34.3",
     "vue": "^3.5.18",