feat: validate user input for entity names

internal/controller/ship_class.go

@@ -8,6 +8,7 @@ import (
 	"github.com/google/uuid"
 	e "github.com/iliadenisov/galaxy/internal/error"
 	"github.com/iliadenisov/galaxy/internal/model/game"
+	"github.com/iliadenisov/galaxy/internal/util"
 )
 
 func (c *Controller) CreateShipType(raceName, typeName string, drive float64, ammo int, weapons, shileds, cargo float64) error {
@@ -23,7 +24,7 @@ func (c *Cache) CreateShipType(ri int, typeName string, drive float64, ammo int,
 	if err := checkShipTypeValues(drive, ammo, weapons, shileds, cargo); err != nil {
 		return err
 	}
-	n, ok := validateTypeName(typeName)
+	n, ok := util.ValidateTypeName(typeName)
 	if !ok {
 		return e.NewEntityTypeNameValidationError("%q", n)
 	}