Handle no-tasks mode in guest v2

resources/js/guest/lib/engagement.ts

@@ -3,6 +3,6 @@ import type { EventData } from '../services/eventApi';
 export function isTaskModeEnabled(event?: EventData | null): boolean {
   if (!event) return true;
   const mode = event.engagement_mode;
-  if (mode === 'photo_only') return false;
-  return true;
+  if (!mode) return true;
+  return mode === 'tasks';
 }