fix: 문서 수정일 미변경 오류, 문서버전별 업로드 날짜 반환 추가

src/main/java/com/jobnote/domain/common/BaseTimeEntity.java

@@ -21,4 +21,8 @@ public abstract class BaseTimeEntity {
 
     @LastModifiedDate
     private LocalDateTime modifiedDate;
+
+    public void updateModifiedDate(final LocalDateTime modifiedDate) {
+        this.modifiedDate = modifiedDate;
+    }
 }

src/main/java/com/jobnote/domain/document/dto/DocumentVersionResponse.java

@@ -4,14 +4,17 @@
 import lombok.AccessLevel;
 import lombok.Builder;
 
+import java.time.LocalDate;
+
 @Builder(access = AccessLevel.PRIVATE)
 public record DocumentVersionResponse(
     Long id,
     int version,
     String title,
     String fileName,
     String fileUrl,
-    Long fileSize
+    Long fileSize,
+    LocalDate createdDate
 ) {
     public static DocumentVersionResponse of(final DocumentVersion documentVersion, final String fileUrl) {
         return DocumentVersionResponse.builder()
@@ -21,6 +24,7 @@ public static DocumentVersionResponse of(final DocumentVersion documentVersion,
                 .fileName(documentVersion.getOriginFileName())
                 .fileUrl(fileUrl)
                 .fileSize(documentVersion.getFileSize())
+                .createdDate(documentVersion.getCreatedDate().toLocalDate())
                 .build();
     }
 }

src/main/java/com/jobnote/domain/document/service/DocumentService.java

@@ -18,6 +18,8 @@
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
+import java.time.LocalDateTime;
+
 import static com.jobnote.global.common.ResponseCode.NOT_FOUND_DOCUMENT;
 
 @Service
@@ -44,6 +46,7 @@ public Long uploadNewDocument(final Long userId, final DocumentRequest request)
     public Long uploadNewVersionDocument(final Long userId, final Long documentId, final DocumentRequest request) {
         Document document = getByIdOrThrow(documentId);
         document.validateOwner(userId);
+        document.updateModifiedDate(LocalDateTime.now());
 
         int version = documentVersionRepository.findLatestVersionByDocumentId(documentId) + 1;