fix:모바일 퀴즈 복사 방지

src/components/quiz/QuizQuestions.tsx

@@ -17,8 +17,9 @@ interface QuizQuestionsProps {
 const QuizQuestions: React.FC<QuizQuestionsProps> = ({ questions, answers, onAnswerChange }) => {
   useEffect(() => {
     // 오른쪽 클릭 방지
-    const handleContextMenu = (e: MouseEvent) => e.preventDefault();
+    const handleContextMenu = (e: MouseEvent | TouchEvent) => e.preventDefault();
     document.addEventListener('contextmenu', handleContextMenu);
+    document.addEventListener('touchstart', handleContextMenu);
 
     // 텍스트 선택 방지
     document.body.style.userSelect = 'none';
@@ -34,6 +35,7 @@ const QuizQuestions: React.FC<QuizQuestionsProps> = ({ questions, answers, onAns
     // 컴포넌트 언마운트 시 이벤트 제거
     return () => {
       document.removeEventListener('contextmenu', handleContextMenu);
+      document.removeEventListener('touchstart', handleContextMenu);
       document.removeEventListener('keydown', handleKeyDown);
       document.body.style.userSelect = 'auto';
     };