feat(cli): add setting to hide shortcuts hint UI (#18562)

packages/cli/src/ui/components/InputPrompt.test.tsx

@@ -4296,6 +4296,30 @@ describe('InputPrompt', () => {
   });
 
   describe('shortcuts help visibility', () => {
+    it('opens shortcuts help with ? on empty prompt even when showShortcutsHint is false', async () => {
+      const setShortcutsHelpVisible = vi.fn();
+      const settings = createMockSettings({
+        ui: { showShortcutsHint: false },
+      });
+
+      const { stdin, unmount } = renderWithProviders(
+        <InputPrompt {...props} />,
+        {
+          settings,
+          uiActions: { setShortcutsHelpVisible },
+        },
+      );
+
+      await act(async () => {
+        stdin.write('?');
+      });
+
+      await waitFor(() => {
+        expect(setShortcutsHelpVisible).toHaveBeenCalledWith(true);
+      });
+      unmount();
+    });
+
     it.each([
       {
         name: 'terminal paste event occurs',