📄️ User authorization
User authorization: ChatUser, ChatAuth, logout methods, Kotlin and Java examples
📄️ Message methods
Message methods: send, prefill, unread counter, UnreadMessagesController, callback threads
📄️ Delegates and event listeners
Subscribing to SDK events: ChatCenterUIListener (4 callbacks) and ChatUpdateProcessor (event stream bus)
📄️ Error handling and diagnostics
Error handling: diagnostics, decision tree, edge cases, LogInterceptor