Offer Claude sign-in from failed sessions

app/androidApp/src/main/kotlin/com/example/aiapp/TranscriptItems.kt

@@ -518,6 +518,8 @@ fun foldEvent(items: List<TranscriptItem>, entry: SeqEvent): List<TranscriptItem
         is SessionEvent.MessageDropped -> items
         is SessionEvent.Settings -> items
         is SessionEvent.Status -> settleReply(items, event.state)
+        is SessionEvent.AuthenticationRequired ->
+            items + TranscriptItem.ErrorMsg(entry.seq, event.message)
         is SessionEvent.Error -> items + TranscriptItem.ErrorMsg(entry.seq, event.message)
         is SessionEvent.Image ->
             // Under the call that produced it when there is one, and a row of its own when there is