fase(1): shared domain building blocks

frontend/package.json

@@ -16,7 +16,8 @@
     "react-dom": "^19.2.0",
     "react-router-dom": "^7.13.1",
     "socket.io-client": "^4.8.3",
-    "tailwindcss": "^4.2.1"
+    "tailwindcss": "^4.2.1",
+    "uuid": "^13.0.0"
   },
   "devDependencies": {
     "@eslint/js": "^9.39.1",
@@ -25,6 +26,7 @@
     "@types/node": "^24.10.1",
     "@types/react": "^19.2.7",
     "@types/react-dom": "^19.2.3",
+    "@types/uuid": "^10.0.0",
     "@vitejs/plugin-react": "^5.1.1",
     "@vitest/browser": "^4.0.18",
     "concurrently": "^9.2.1",