fix(deps): update dependency zod to v4

Author: renovate[bot]

bun.lockb

@@ -55,7 +55,7 @@
     "sugar-high": "^0.9.3",
     "tailwind-merge": "^3.0.2",
     "vaul": "^1.0.0",
-    "zod": "^3.24.2"
+    "zod": "^4.0.0"
   },
   "devDependencies": {
     "@eslint/compat": "^1.2.7",