fix(footer): suppress hint when status line active, hide on exit prompts

- Hide "? for shortcuts" when a custom status line is configured
  (status line already occupies the top row, hint is redundant)
- Hide status line during Ctrl+C/D exit prompts to keep footer
  at one row during exit flow
- Matches upstream Claude Code suppressHint + exitMessage behavior

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

@@ -52,8 +52,11 @@ export const Footer: React.FC = () => {
   const contextWindowSize =
     config.getContentGeneratorConfig()?.contextWindowSize;
 
+  // Hide "? for shortcuts" when a custom status line is active (it already
+  // occupies the top row, so the hint is redundant). Matches upstream behavior.
+  const suppressHint = !!statusLineText;
+
   // Left bottom row: high-priority messages > approval mode > hint.
-  // Matches upstream layout where status line and hints coexist vertically.
   const leftBottomContent = uiState.ctrlCPressedOnce ? (
     <Text color={theme.status.warning}>{t('Press Ctrl+C again to exit.')}</Text>
   ) : uiState.ctrlDPressedOnce ? (
@@ -67,7 +70,7 @@ export const Footer: React.FC = () => {
   ) : showAutoAcceptIndicator !== undefined &&
     showAutoAcceptIndicator !== ApprovalMode.DEFAULT ? (
     <AutoAcceptIndicator approvalMode={showAutoAcceptIndicator} />
-  ) : (
+  ) : suppressHint ? null : (
     <Text color={theme.text.secondary}>{t('? for shortcuts')}</Text>
   );
 
@@ -117,7 +120,9 @@ export const Footer: React.FC = () => {
     >
       {/* Left column — status line on top, hints/mode on bottom */}
       <Box flexDirection="column" flexShrink={isNarrow ? 0 : 1}>
-        {statusLineText && (
+        {statusLineText &&
+          !uiState.ctrlCPressedOnce &&
+          !uiState.ctrlDPressedOnce && (
             <Text dimColor wrap="truncate">
               {statusLineText}
             </Text>