add countdown apis

package.json

@@ -20,16 +20,20 @@
     "drizzle-orm": "^0.33.0",
     "geist": "^1.3.1",
     "next": "^14.2.15",
+    "pg": "^8.13.0",
     "postgres": "^3.4.4",
     "react": "^18.3.1",
     "react-dom": "^18.3.1",
+    "socket.io": "^4.8.0",
     "zod": "^3.23.8"
   },
   "devDependencies": {
     "@types/eslint": "^8.56.12",
     "@types/node": "^20.16.13",
+    "@types/pg": "^8.11.10",
     "@types/react": "^18.3.11",
     "@types/react-dom": "^18.3.1",
+    "@types/socket.io": "^3.0.2",
     "@typescript-eslint/eslint-plugin": "^8.10.0",
     "@typescript-eslint/parser": "^8.10.0",
     "drizzle-kit": "^0.24.2",