feat(purchase

internal/repository/purchase_order_repository.go

@@ -101,6 +101,10 @@ func (r *PurchaseOrderRepositoryImpl) List(ctx context.Context, organizationID u
 			if teamCategoryID, ok := value.(uuid.UUID); ok {
 				query = query.Where("team_category_id = ?", teamCategoryID)
 			}
+		case "team_unassigned":
+			if unassigned, ok := value.(bool); ok && unassigned {
+				query = query.Where("team_scope IS NULL")
+			}
 		case "start_date":
 			if startDate, ok := value.(time.Time); ok {
 				query = query.Where("transaction_date >= ?", startDate)
@@ -160,6 +164,10 @@ func (r *PurchaseOrderRepositoryImpl) Count(ctx context.Context, organizationID
 			if teamCategoryID, ok := value.(uuid.UUID); ok {
 				query = query.Where("team_category_id = ?", teamCategoryID)
 			}
+		case "team_unassigned":
+			if unassigned, ok := value.(bool); ok && unassigned {
+				query = query.Where("team_scope IS NULL")
+			}
 		case "start_date":
 			if startDate, ok := value.(time.Time); ok {
 				query = query.Where("transaction_date >= ?", startDate)