Reapply "feat(accessibility): implement centralized screen reader layout (#9263)

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

packages/cli/src/ui/components/ExitWarning.tsx

@@ -0,0 +1,29 @@
+/**
+ * @license
+ * Copyright 2025 Google LLC
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import type React from 'react';
+import { Box, Text } from 'ink';
+import { useUIState } from '../contexts/UIStateContext.js';
+import { theme } from '../semantic-colors.js';
+
+export const ExitWarning: React.FC = () => {
+  const uiState = useUIState();
+  return (
+    <>
+      {uiState.dialogsVisible && uiState.ctrlCPressedOnce && (
+        <Box marginTop={1}>
+          <Text color={theme.status.warning}>Press Ctrl+C again to exit.</Text>
+        </Box>
+      )}
+
+      {uiState.dialogsVisible && uiState.ctrlDPressedOnce && (
+        <Box marginTop={1}>
+          <Text color={theme.status.warning}>Press Ctrl+D again to exit.</Text>
+        </Box>
+      )}
+    </>
+  );
+};