fix(google-vault): pageToken should be user-or-llm visibility, not hidden

Greptile review: hidden is reserved for framework-injected tokens; pageToken
in list_saved_queries.ts should be user-or-llm so an agent/user can pass it,
matching the pattern used elsewhere for tool-supplied pagination cursors.

Author: waleedlatif1

apps/sim/tools/google_vault/list_saved_queries.ts

@@ -35,7 +35,7 @@ export const listSavedQueriesTool: ToolConfig<GoogleVaultListSavedQueriesParams>
     pageToken: {
       type: 'string',
       required: false,
-      visibility: 'hidden',
+      visibility: 'user-or-llm',
       description: 'Token for pagination',
     },
     savedQueryId: {