Offer Claude sign-in from failed sessions

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

@@ -0,0 +1,28 @@
+package com.example.aiapp
+
+import kotlin.test.Test
+import kotlin.test.assertFalse
+import kotlin.test.assertTrue
+
+class AuthenticationPromptTest {
+    @Test
+    fun an_authentication_failure_stays_actionable_through_its_terminal_status() {
+        val required =
+            authenticationPromptAfter(
+                false,
+                SessionEvent.AuthenticationRequired("sign in again"),
+            )
+
+        assertTrue(authenticationPromptAfter(required, SessionEvent.Status("idle")))
+    }
+
+    @Test
+    fun a_later_provider_response_makes_an_old_failure_stale() {
+        assertFalse(
+            authenticationPromptAfter(
+                true,
+                SessionEvent.AssistantText("Working again."),
+            )
+        )
+    }
+}