fix false "task complete" state during agent message (#4627)

fixes an issue where user messages wouldn't be queued and ctrl + c would
quit the app instead of canceling the stream during the final agent
message.

codex-rs/tui/src/bottom_pane/mod.rs

@@ -339,7 +339,14 @@ impl BottomPane {
             self.request_redraw();
         } else {
             // Hide the status indicator when a task completes, but keep other modal views.
-            self.status = None;
+            self.hide_status_indicator();
+        }
+    }
+
+    /// Hide the status indicator while leaving task-running state untouched.
+    pub(crate) fn hide_status_indicator(&mut self) {
+        if self.status.take().is_some() {
+            self.request_redraw();
         }
     }