fix(deps): update dependency zod to v4

Author: renovate[bot]

apps/test-bot/package.json

@@ -21,7 +21,7 @@
     "discord.js": "catalog:discordjs",
     "dotenv": "^16.4.7",
     "ms": "^2.1.3",
-    "zod": "^3.25.56"
+    "zod": "^4.0.0"
   },
   "devDependencies": {
     "@types/ms": "^2.1.0",

packages/ai/package.json

@@ -36,6 +36,6 @@
   },
   "dependencies": {
     "ai": "^4.3.16",
-    "zod": "^3.25.48"
+    "zod": "^4.0.0"
   }
 }

packages/devtools-ui/package.json

@@ -50,7 +50,7 @@
     "tailwind-merge": "^3.0.0",
     "tw-animate-css": "^1.2.5",
     "vaul": "^1.1.2",
-    "zod": "^3.24.2",
+    "zod": "^4.0.0",
     "zustand": "^5.0.3"
   },
   "devDependencies": {