refact: at 발급시 만료시간 같이 반환

src/main/java/Gotcha/common/jwt/token/JwtHelper.java

@@ -40,9 +40,12 @@ private TokenDto getTokenDto(User user, Long userId, String username) {
 
         String accessToken = TOKEN_PREFIX + tokenProvider.createAccessToken(role, userId, username);
         String refreshToken = tokenProvider.createRefreshToken(role, userId, username);
+        LocalDateTime accessTokenExpiredAt = tokenProvider.getExpiryDate(
+                accessToken.replace(TOKEN_PREFIX, "").trim()
+        );
 
         refreshTokenService.saveRefreshToken(username, refreshToken);
-        return new TokenDto(accessToken, refreshToken);
+        return new TokenDto(accessToken, refreshToken, accessTokenExpiredAt);
     }
 
     public TokenDto reissueToken(String refreshToken) {
@@ -58,11 +61,14 @@ public TokenDto reissueToken(String refreshToken) {
 
         String newAccessToken = TOKEN_PREFIX + tokenProvider.createAccessToken(role, userId, username);
         String newRefreshToken = tokenProvider.createRefreshToken(role, userId, username);
+        LocalDateTime newAccessTokenExpiredAt = tokenProvider.getExpiryDate(
+                newAccessToken.replace(TOKEN_PREFIX, "").trim()
+        );
 
         refreshTokenService.deleteRefreshToken(refreshToken);
         refreshTokenService.saveRefreshToken(username, newRefreshToken);
 
-        return new TokenDto(newAccessToken, newRefreshToken);
+        return new TokenDto(newAccessToken, newRefreshToken, newAccessTokenExpiredAt);
     }
 
     public void removeToken(String accessToken, String refreshToken, HttpServletResponse response) {

src/main/java/Gotcha/domain/auth/controller/AuthController.java

@@ -100,6 +100,7 @@ public ResponseEntity<?> signOut(@RequestHeader(value = ACCESS_HEADER_VALUE, req
     private ResponseEntity<?> createTokenRes(TokenDto tokenDto) {
         Map<String, Object> responseData = new HashMap<>();
         responseData.put("accessToken", tokenDto.accessToken());
+        responseData.put("expiredAt", tokenDto.accessTokenExpiredAt());
 
         return ResponseEntity.ok()
                 .header(HttpHeaders.SET_COOKIE,

src/main/java/Gotcha/domain/auth/dto/TokenDto.java

@@ -1,10 +1,13 @@
 package Gotcha.domain.auth.dto;
 
+import java.time.LocalDateTime;
+
 public record TokenDto(
         String accessToken,
-        String refreshToken
+        String refreshToken,
+        LocalDateTime accessTokenExpiredAt
 ) {
-    public static TokenDto of(String accessToken, String refreshToken) {
-        return new TokenDto(accessToken, refreshToken);
+    public static TokenDto of(String accessToken, String refreshToken, LocalDateTime accessTokenExpiredAt) {
+        return new TokenDto(accessToken, refreshToken, accessTokenExpiredAt);
     }
 }