검증게시판 기능 추가

backend/src/main/java/com/goldenchart/controller/VerificationUploadExceptionHandler.java

@@ -0,0 +1,30 @@
+package com.goldenchart.controller;
+
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.ExceptionHandler;
+import org.springframework.web.bind.annotation.RestControllerAdvice;
+import org.springframework.web.multipart.MaxUploadSizeExceededException;
+import org.springframework.web.multipart.MultipartException;
+
+import java.util.Map;
+
+@RestControllerAdvice
+@Slf4j
+public class VerificationUploadExceptionHandler {
+
+    @ExceptionHandler(MaxUploadSizeExceededException.class)
+    public ResponseEntity<Map<String, String>> handleMaxUpload(MaxUploadSizeExceededException e) {
+        log.warn("[VerificationUpload] size exceeded: {}", e.getMessage());
+        return ResponseEntity.status(HttpStatus.PAYLOAD_TOO_LARGE)
+                .body(Map.of("message", "업로드 용량이 제한(30MB)을 초과했습니다."));
+    }
+
+    @ExceptionHandler(MultipartException.class)
+    public ResponseEntity<Map<String, String>> handleMultipart(MultipartException e) {
+        log.warn("[VerificationUpload] multipart error: {}", e.getMessage());
+        return ResponseEntity.badRequest()
+                .body(Map.of("message", "이미지 파일 형식을 확인할 수 없습니다."));
+    }
+}