PostgreSQL 데이터 계층 추가

package.json

@@ -1,6 +1,6 @@
 {
   "name": "sori.studio",
-  "version": "0.0.4",
+  "version": "0.0.5",
   "private": true,
   "type": "module",
   "scripts": {
@@ -12,9 +12,9 @@
   "dependencies": {
     "@nuxtjs/tailwindcss": "^6.14.0",
     "nuxt": "^3.16.2",
+    "postgres": "^3.4.9",
     "vue": "^3.5.13",
     "vue-router": "^4.5.0",
     "zod": "^3.24.2"
-  },
-  "devDependencies": {}
+  }
 }