feat: message when stream get correctly resumed (#4988)

<img width="366" height="109" alt="Screenshot 2025-10-09 at 17 44 16"
src="https://github.com/user-attachments/assets/26bc6f60-11bc-4fc6-a1cc-430ca1203969"
/>

codex-rs/tui/src/status_indicator_widget.rs

@@ -103,6 +103,11 @@ impl StatusIndicatorWidget {
         }
     }
 
+    #[cfg(test)]
+    pub(crate) fn header(&self) -> &str {
+        &self.header
+    }
+
     /// Replace the queued messages displayed beneath the header.
     pub(crate) fn set_queued_messages(&mut self, queued: Vec<String>) {
         self.queued_messages = queued;