fix: 에러 발생시 error로 return 되지 않도록 HTTPS status code 변경

-> success: false, HttpStatus.OK, code: 에러코드
     system 에러인 경우만 error로 return

src/main/java/cokr/xit/adds/core/spring/exception/CustomExceptionHandler.java

@@ -47,7 +47,7 @@ public class CustomExceptionHandler {
     @ExceptionHandler(MethodArgumentNotValidException.class)
     public ResponseEntity<ApiBaseResponse<?>> handleMethodArgumentNotValidException(MethodArgumentNotValidException ex) {
         final String message = ex.getBindingResult().getAllErrors().get(0).getDefaultMessage();
-        return makeEntity(ResultCode.BAD_REQUEST.getStatusCode(), message, HttpStatus.BAD_REQUEST);
+        return makeEntity(ResultCode.BAD_REQUEST.getStatusCode(), message, HttpStatus.OK);
     }
 
 
@@ -58,7 +58,7 @@ public class CustomExceptionHandler {
      */
     @ExceptionHandler(IllegalArgumentException.class)
     public ResponseEntity<ApiBaseResponse<?>> illegalArgumentException(IllegalArgumentException ex) {
-        return makeEntity(ResultCode.BAD_REQUEST.getStatusCode(), ex.getMessage(), HttpStatus.BAD_REQUEST);
+        return makeEntity(ResultCode.BAD_REQUEST.getStatusCode(), ex.getMessage(), HttpStatus.OK);
     }
 
     /**
@@ -68,7 +68,7 @@ public class CustomExceptionHandler {
      */
     @ExceptionHandler(NullPointerException.class)
     public ResponseEntity<ApiBaseResponse<?>> handle(NullPointerException ex) {
-        return makeEntity(ResultCode.BAD_REQUEST.getStatusCode(), ex.getMessage(), HttpStatus.BAD_REQUEST);
+        return makeEntity(ResultCode.BAD_REQUEST.getStatusCode(), ex.getMessage(), HttpStatus.OK);
     }
 
     /**
@@ -83,7 +83,7 @@ public class CustomExceptionHandler {
             return makeEntity(ResultCode.UNAUTHORIZED.getStatusCode(), ex.getMessage(), HttpStatus.UNAUTHORIZED);
 
         }
-        return makeEntity(ResultCode.BAD_REQUEST.getStatusCode(), ex.getMessage(), HttpStatus.BAD_REQUEST);
+        return makeEntity(ResultCode.BAD_REQUEST.getStatusCode(), ex.getMessage(), HttpStatus.OK);
     }
 
     /**
@@ -100,7 +100,7 @@ public class CustomExceptionHandler {
         return makeEntity(
             ResultCode.INTERNAL_SERVER_ERROR.getStatusCode(),
             "Does not support request method '" + req.getMethod() + "'",
-            HttpStatus.INTERNAL_SERVER_ERROR
+            HttpStatus.OK
         );
     }
 
@@ -124,7 +124,7 @@ public class CustomExceptionHandler {
 				sb.append(fieldError.getDefaultMessage());
 				sb.append(", ");
 			}
-			return makeEntity(ResultCode.INVALID_DATA.getStatusCode(), sb.toString(), HttpStatus.valueOf(ResultCode.INVALID_DATA.getStatusCode()));
+			return makeEntity(ResultCode.INVALID_DATA.getStatusCode(), sb.toString(), HttpStatus.OK);
 
 		} else if (ex instanceof HttpMessageNotReadableException) {
 			resultCode = ResultCode.INVALID_DATA;
@@ -139,7 +139,7 @@ public class CustomExceptionHandler {
 			resultCode = ResultCode.INTERNAL_SERVER_ERROR;
 		}
 
-        return makeEntity(resultCode.getStatusCode(), resultCode.getMessage(), HttpStatus.valueOf(resultCode.getStatusCode()));
+        return makeEntity(resultCode.getStatusCode(), resultCode.getMessage(), HttpStatus.OK);
     }
 
     /**
@@ -152,7 +152,7 @@ public class CustomExceptionHandler {
         if (Objects.equals(ex.getCode(), ResultCode.NO_CONTENT.getStatusCode())){
 			return new ResponseEntity<>(
 				ApiBaseResponse.builder()
-					.success(true)
+					.success(false)
 					.code(ex.getCode())
 					.message(ex.getMessage())
 					.build(),
@@ -160,7 +160,7 @@ public class CustomExceptionHandler {
 				HttpStatus.OK
 			);
         }
-        return makeEntity(ex.getCode(), ex.getMessage(), HttpStatus.BAD_REQUEST);
+        return makeEntity(ex.getCode(), ex.getMessage(), HttpStatus.OK);
     }
 
     private ResponseEntity<ApiBaseResponse<?>> makeEntity(final Integer code, final String message, final HttpStatus status) {