fix(deps): update dependency zod to v4

Author: renovate[bot]

modules/api-server/demo-app/package-lock.json

@@ -59,7 +59,7 @@
     "tailwind-merge": "^2.6.0",
     "tailwindcss-animate": "^1.0.7",
     "vaul": "^0.9.9",
-    "zod": "^3.25.76"
+    "zod": "^4.0.0"
   },
   "devDependencies": {
     "@eslint/js": "^9.32.0",