fix: restore PrismaPg adapter for Prisma v7 compatibility

package.json

@@ -10,6 +10,7 @@
   },
   "dependencies": {
     "@base-ui/react": "^1.5.0",
+    "@prisma/adapter-pg": "^7.9.0",
     "@prisma/client": "^7.8.0",
     "class-variance-authority": "^0.7.1",
     "cloudinary": "^2.10.0",
@@ -20,6 +21,7 @@
     "next": "16.2.9",
     "next-auth": "^5.0.0-beta.31",
     "next-intl": "^4.13.0",
+    "pg": "^8.22.0",
     "react": "19.2.4",
     "react-dom": "19.2.4",
     "shadcn": "^4.11.0",
@@ -29,6 +31,7 @@
   "devDependencies": {
     "@tailwindcss/postcss": "^4",
     "@types/node": "^20",
+    "@types/pg": "^8.20.0",
     "@types/react": "^19",
     "@types/react-dom": "^19",
     "eslint": "^9",