build: add zod as a dependency

pnpm-lock.yaml

@@ -11,6 +11,9 @@ importers:
       postgres:
         specifier: ^3.4.7
         version: 3.4.7
+      zod:
+        specifier: ^4.1.13
+        version: 4.1.13
     devDependencies:
       '@eslint/compat':
         specifier: ^1.4.0
@@ -1894,6 +1897,9 @@ packages:
   zimmerframe@1.1.4:
     resolution: {integrity: sha512-B58NGBEoc8Y9MWWCQGl/gq9xBCe4IiKM0a2x7GZdQKOW5Exr8S1W24J6OgM1njK8xCRGvAJIL/MxXHf6SkmQKQ==}
 
+  zod@4.1.13:
+    resolution: {integrity: sha512-AvvthqfqrAhNH9dnfmrfKzX5upOdjUVJYFqNSlkmGf64gRaTzlPwz99IHYnVs28qYAybvAlBV+H7pn0saFY4Ig==}
+
 snapshots:
 
   '@drizzle-team/brocli@0.10.2': {}
@@ -3354,3 +3360,5 @@ snapshots:
   yocto-queue@0.1.0: {}
 
   zimmerframe@1.1.4: {}
+
+  zod@4.1.13: {}