Add Event Type

Instructions

1. Read current event types in frontend/src/App.tsx:

   • Find the EventType union type definition
   • Review existing block components (UserMessageBlock, PlanBlock, TodoBlock, etc.)

2. Define the new event type interface:

   type NewEventType = {
     type: 'new_type';
     // Add required fields
   };
   

3. Add to EventType union:

   type EventType = UserMessage | Plan | Todo | ... | NewEventType;