Offer Claude sign-in from failed sessions

app/androidApp/src/test/kotlin/com/example/aiapp/TranscriptItemsTest.kt

@@ -21,6 +21,21 @@ class TranscriptItemsTest {
     private fun texts(items: List<TranscriptItem>) =
         items.filterIsInstance<TranscriptItem.AssistantMsg>().map { it.text }
 
+    @Test
+    fun an_authentication_failure_stays_visible_as_an_error_row() {
+        val entry =
+            SeqEvent(
+                seq = 7,
+                ts = 1.0,
+                event = SessionEvent.AuthenticationRequired("sign in again"),
+            )
+
+        assertEquals(
+            TranscriptItem.ErrorMsg(7, "sign in again"),
+            foldEvent(emptyList(), entry).single(),
+        )
+    }
+
     @Test
     fun text_after_the_turn_ended_is_a_new_reply_rather_than_more_of_the_last_one() {
         val items =