Regenerate the frontend SDK

Picks up the unauthenticated_hook validation issue.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01KkmeRiyeYmVZqJVwuyHq9o

frontend/src/client/schemas.gen.ts

@@ -959,7 +959,7 @@ export const ValidationIssueSchema = {
     properties: {
         code: {
             type: 'string',
-            enum: ['cycle', 'unconnected_input', 'missing_initial_value', 'node_error'],
+            enum: ['cycle', 'unconnected_input', 'missing_initial_value', 'node_error', 'unauthenticated_hook'],
             title: 'Code'
         },
         message: {