TeamTalkRust

test: add 87 integration tests filling bot + dispatch + events coverage gaps (#58)

perf(dispatch): index Client event bus and Dispatcher by event discriminant (#57)

feat(types): introduce SecretString and use it for LoginParams password (#56)

feat(events): add TimeoutKind to classify Error::Timeout by operation (#55)

feat(events): add SdkErrorCode typed mapping for SDK error integers (#54)