fix: 토큰 에러 수정

Author: dnzp75

src/main/java/com/example/log4u/common/oauth2/jwt/JwtAuthenticationFilter.java

@@ -82,17 +82,20 @@ private boolean shouldSkipFilter(String requestUri) {
 	}
 
 	private String extractAccessTokenFromCookie(HttpServletRequest request) {
-		// 쿠키에서 access 토큰 추출
 		String accessToken = null;
 		Cookie[] cookies = request.getCookies();
-		for (Cookie cookie : cookies) {
-			if (cookie.getName().equals("access")) {
-				accessToken = cookie.getValue();
+
+		if (cookies != null) {
+			for (Cookie cookie : cookies) {
+				if (cookie.getName().equals("access")) {
+					accessToken = cookie.getValue();
+				}
 			}
 		}
 		return accessToken;
 	}
 
+
 	private boolean validateTokenExpiration(
 		HttpServletResponse response,
 		String accessToken