fix: 쿠키 생성 시 도메인 명시적 설정(임시 하드코딩)

src/main/java/com/umc/naoman/global/security/util/CookieUtils.java

@@ -13,6 +13,7 @@ public class CookieUtils {
     public static void addCookie(HttpServletResponse response, String name, String value,
                                  int maxAge) {
         Cookie cookie = new Cookie(name, value);
+        cookie.setDomain("ec2-52-79-212-19.ap-northeast-2.compute.amazonaws.com");
         cookie.setPath("/");
         cookie.setMaxAge(maxAge);
         // HTTPS 적용 시 함께 적용