Extend output-free transcript summaries to more tools (#60555)

## What changed

- Add summary labels for MCP and dynamic tools, computer activity, terminal interactions, file edits, images, plan updates, agent calls, and historical tool fallbacks.
- Keep tool output out of summaries and give summaries disclosure identities even when their cells have no activity IDs.
- Bring focused disclosure headers into view and show `expand` or `collapse` in the footer, including for search-expanded entries.

## Testing

Add assertions for tool labels, a transcript snapshot verifying that image-generation output stays hidden, and coverage for expanded and collapsed footer hints.

GitOrigin-RevId: 076b8d74c17f26b10aa8221c65b8b38dbb5ad5ea

codex-rs/tui/src/transcript_view_tests.rs

@@ -1383,6 +1383,27 @@ fn parked_screen(
     text(&buf).trim_end().to_owned()
 }
 
+#[test]
+fn tool_disclosure_hides_output() {
+    let image = crate::history_cell::new_image_generation_call(
+        "image".into(),
+        "failed",
+        Some("private prompt".into()),
+        /*saved_path*/ None,
+    );
+    let cells: &[Arc<dyn HistoryCell>] = &[Arc::new(image)];
+    let mut view = TranscriptView::default();
+    let collapsed = parked_screen(&mut view, cells, /*active*/ None);
+    view.handle_key(KeyCode::F(4).into(), cells);
+    view.handle_key(KeyCode::Enter.into(), cells);
+    let expanded = parked_screen(&mut view, cells, /*active*/ None);
+    insta::assert_snapshot!(format!("{collapsed}\n{expanded}"), @r"
+        ▸ Image generation failed
+        ▾ Image generation failed
+          Image generation failed
+    ");
+}
+
 #[test]
 fn live_search_group_keeps_its_summary_in_the_parked_pane() {
     use codex_app_server_protocol::CommandExecutionSource;