tui: make Enter save experimental features popup

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

@@ -175,10 +175,16 @@ impl BottomPaneView for ExperimentalFeaturesView {
                 ..
             } => self.move_down(),
             KeyEvent {
-                code: KeyCode::Enter,
+                code: KeyCode::Char(' '),
                 modifiers: KeyModifiers::NONE,
                 ..
             } => self.toggle_selected(),
+            KeyEvent {
+                code: KeyCode::Enter,
+                ..
+            } => {
+                self.on_ctrl_c();
+            }
             KeyEvent {
                 code: KeyCode::Esc, ..
             } => {
@@ -287,9 +293,9 @@ impl Renderable for ExperimentalFeaturesView {
 fn experimental_popup_hint_line() -> Line<'static> {
     Line::from(vec![
         "Press ".into(),
+        key_hint::plain(KeyCode::Char(' ')).into(),
+        " to toggle, ".into(),
         key_hint::plain(KeyCode::Enter).into(),
-        " to toggle or ".into(),
-        key_hint::plain(KeyCode::Esc).into(),
         " to save for next conversation".into(),
     ])
 }

codex-rs/tui/src/chatwidget/snapshots/codex_tui__chatwidget__tests__experimental_features_popup.snap

@@ -8,4 +8,4 @@ expression: popup
 › [ ] Ghost snapshots  Capture undo snapshots each turn.
   [x] Shell tool       Allow the model to run shell commands.
 
-  Press enter to toggle or esc to save for next conversation
+  Press space to toggle, enter to save for next conversation

codex-rs/tui/src/chatwidget/tests.rs

@@ -2992,7 +2992,7 @@ async fn experimental_features_toggle_saves_on_exit() {
     );
     chat.bottom_pane.show_view(Box::new(view));
 
-    chat.handle_key_event(KeyEvent::new(KeyCode::Enter, KeyModifiers::NONE));
+    chat.handle_key_event(KeyEvent::new(KeyCode::Char(' '), KeyModifiers::NONE));
 
     assert!(
         rx.try_recv().is_err(),