Get and View a Message

// Get single message with live updates
func observeMessage(messageId: String) {
    let messageObject = messageRepository.getMessage(messageId)
    
    // Observe message changes
    token = messageObject.observe { [weak self] messageObject, error in
        if let error = error {
            self?.handleError(error)
            return
        }
        
        guard let message = messageObject.object else {
            print("Message not found or deleted")
            return
        }
        
        // Update UI with message content
        self?.displayMessage(message)
        
        // Handle different message types
        self?.processMessageContent(message)
    }
}