fix: 과제 파일 조회 및 연차별 담당자 저장 문제 수정

src/main/java/com/bmilab/backend/domain/task/dto/request/TaskBasicInfoUpdateRequest.java

@@ -4,6 +4,8 @@
 import org.springframework.format.annotation.DateTimeFormat;
 
 import java.time.LocalDate;
+import java.util.List;
+import java.util.UUID;
 
 public record TaskBasicInfoUpdateRequest(
 
@@ -40,6 +42,12 @@ public record TaskBasicInfoUpdateRequest(
         String businessContactPhone,
 
         @Schema(description = "공고 링크", example = "https://example.or.kr/announcement/2025-001")
-        String announcementLink
+        String announcementLink,
+
+        @Schema(description = "RFP 파일 ID 목록")
+        List<UUID> rfpFileIds,
+
+        @Schema(description = "공고서류 파일 ID 목록")
+        List<UUID> announcementFileIds
 ) {
 }

src/main/java/com/bmilab/backend/domain/task/service/TaskService.java

@@ -243,6 +243,14 @@ public void updateBasicInfo(Long userId, Long taskId, TaskBasicInfoUpdateRequest
         }
 
         taskBasicInfoRepository.save(basicInfo);
+
+        if (request.rfpFileIds() != null) {
+            fileService.syncFiles(request.rfpFileIds(), FileDomainType.TASK_RFP, taskId);
+        }
+
+        if (request.announcementFileIds() != null) {
+            fileService.syncFiles(request.announcementFileIds(), FileDomainType.TASK_ANNOUNCEMENT, taskId);
+        }
     }
 
     @Transactional
@@ -482,8 +490,7 @@ public void updateTaskPeriod(Long userId, Long taskId, Long periodId, TaskPeriod
                 ? request.memberIds().stream().map(userService::findUserById).toList()
                 : List.of();
 
-        period.getMembers().clear();
-        period.getMembers().addAll(members);
+        period.update(manager, members);
 
         taskPeriodRepository.save(period);
     }