feat: setup database-driven admin user management

package.json

@@ -12,6 +12,7 @@
     "@formatjs/intl-localematcher": "^0.8.10",
     "@prisma/adapter-pg": "^7.8.0",
     "@prisma/client": "^7.8.0",
+    "bcryptjs": "^3.0.3",
     "framer-motion": "^12.40.0",
     "lucide-react": "^1.17.0",
     "negotiator": "^1.0.0",
@@ -22,6 +23,7 @@
   },
   "devDependencies": {
     "@tailwindcss/postcss": "^4",
+    "@types/bcryptjs": "^2.4.6",
     "@types/negotiator": "^0.6.4",
     "@types/node": "^20",
     "@types/pg": "^8.20.0",