change server start script

package.json

@@ -10,7 +10,7 @@
     "ios": "expo start --ios",
     "web": "expo start --web",
     "build-web": "expo export --platform web",
-    "run-server": "node server.ts",
+    "run-server": "pm2 start server.ts --name 'matrix-frontend'",
     "reset-project": "node ./scripts/reset-project.js",
     "test": "jest --watchAll",
     "lint": "expo lint"
@@ -37,6 +37,7 @@
     "expo-symbols": "~0.2.0",
     "expo-system-ui": "~4.0.5",
     "expo-web-browser": "~14.0.1",
+    "pm2": "^5.4.3",
     "react": "18.3.1",
     "react-dom": "18.3.1",
     "react-native": "0.76.3",