feat: order processing

feat: order commands result save/load

internal/controller/race.go

@@ -91,6 +91,7 @@ func (c *Cache) validActor(name string) (int, error) {
 	return i, nil
 }
 
+// validRace returns index of race with given name or error when race not found or extinct
 func (c *Cache) validRace(name string) (int, error) {
 	i, err := c.raceIndex(name)
 	if err != nil {