Add article generation and pricelist categories

internal/services/export.go

@@ -27,6 +27,7 @@ func NewExportService(cfg config.ExportConfig, categoryRepo *repository.Category
 
 type ExportData struct {
 	Name      string
+	Article   string
 	Items     []ExportItem
 	Total     float64
 	Notes     string
@@ -109,7 +110,7 @@ func (s *ExportService) ToCSV(w io.Writer, data *ExportData) error {
 
 	// Total row
 	totalStr := strings.ReplaceAll(fmt.Sprintf("%.2f", data.Total), ".", ",")
-	if err := csvWriter.Write([]string{"", "", "", "", "ИТОГО:", totalStr}); err != nil {
+	if err := csvWriter.Write([]string{data.Article, "", "", "", "ИТОГО:", totalStr}); err != nil {
 		return fmt.Errorf("failed to write total row: %w", err)
 	}
 
@@ -162,6 +163,7 @@ func (s *ExportService) ConfigToExportData(config *models.Configuration, compone
 
 	return &ExportData{
 		Name:      config.Name,
+		Article:   "",
 		Items:     items,
 		Total:     total,
 		Notes:     config.Notes,