Implement classification redesign

internal/app/manage.go

@@ -8,6 +8,7 @@ import (
 	"strings"
 
 	"finance-duck/internal/banking"
+	"finance-duck/internal/classification"
 	"finance-duck/internal/domain"
 )
 
@@ -108,6 +109,12 @@ func SaveCategory(d *domain.Dataset, v domain.Category) error {
 	d.Categories = append(d.Categories, v)
 	return nil
 }
+
+// LearnAlias records the chosen counterparty as a merchant alias when the
+// classification matcher remains unambiguous.
+func LearnAlias(d *domain.Dataset, f domain.Facts, merchantID string) bool {
+	return classification.LearnAlias(d, f, merchantID)
+}
 func SaveTag(d *domain.Dataset, v domain.Tag) error {
 	v.Name = strings.TrimSpace(v.Name)
 	if v.ID == "" {