- Change IMessage interface to use senderRef instead of sender
- Update message rendering logic to check if senderRef === 'Admin' for admin messages
- All other messages are treated as seller messages
- Add ticket details section with seller info, category, status, etc.
- Implement messages display with chat-like UI (admin vs seller messages)
- Add send message form with textarea and file upload
- Connect to API for fetching ticket data and sending messages
- Use existing components: PageLoading, Error, StatusWithText, Button, Textarea, UploadBox
- Fix CreateTicketMessageType to allow dynamic content strings