개발자 권한 신청 승인/취소 및 RP 생성 흐름 개선

backend/internal/service/developer_service.go

@@ -21,7 +21,10 @@ func (s *DeveloperService) RequestAccess(ctx context.Context, req domain.Develop
 	var existing domain.DeveloperRequest
 	err := s.db.WithContext(ctx).Where("user_id = ? AND tenant_id = ? AND status = ?", req.UserID, req.TenantID, domain.DeveloperRequestStatusPending).First(&existing).Error
 	if err == nil {
-		return errors.New("already has a pending request")
+		return nil
+	}
+	if !errors.Is(err, gorm.ErrRecordNotFound) {
+		return err
 	}
 
 	return s.db.WithContext(ctx).Create(&req).Error
@@ -74,3 +77,10 @@ func (s *DeveloperService) RejectRequest(ctx context.Context, id uint, adminNote
 		"admin_notes": adminNotes,
 	}).Error
 }
+
+func (s *DeveloperService) CancelApprovedRequest(ctx context.Context, id uint, adminNotes string) error {
+	return s.db.WithContext(ctx).Model(&domain.DeveloperRequest{}).Where("id = ?", id).Updates(map[string]interface{}{
+		"status":      domain.DeveloperRequestStatusCancelled,
+		"admin_notes": adminNotes,
+	}).Error
+}