Where the CometChat Android v6 chat UI goes in a Kotlin XML Views app — the default conversations→message Activity flow, growing to the tab-based app (chats/users/groups/calls + detail, thread and search screens + incoming calls), a single one-to-one screen, or chat embedded in an existing Activity/Fragment, with a correct back stack. Triggers: 'tab based chat android', 'add a chat tab to my app', 'open a chat screen for this user', 'embed cometchat in my activity', 'full chat app android kotlin'.
