feat: refreshToken cookie 설정

backend/src/main/java/com/edufocus/edufocus/user/controller/UserController.java

@@ -77,7 +77,7 @@ public class UserController {
                 Cookie refreshCookie = new Cookie("refresh-token", refreshToken);
                 refreshCookie.setPath("/");
                 refreshCookie.setHttpOnly(true);
-                refreshCookie.setSecure(true); // HTTPS에서만 전송되도록 설정
+               // refreshCookie.setSecure(true); // HTTPS에서만 전송되도록 설정
                 // refreshCookie.setSameSite(Cookie.SameSite.NONE); // Cross-Origin 요청에 대해 모두 전송
 
                 response.addCookie(refreshCookie);