feat: Implement message packets for sending and receiving messages, including delivery and read notifications
feat: Enhance ProtocolManager to handle message sending, delivery, and typing status with appropriate logging
feat: Refactor ChatDetailScreen to utilize ChatViewModel for managing chat state and message input
feat: Create ChatViewModel to manage chat messages, input state, and packet listeners for incoming messages
build: Add KSP plugin for annotation processing and configure Java 17 for the build environment
