chore: refactor structure

internal/model/game/game_export_test.go

@@ -0,0 +1,11 @@
+package game
+
+import "iter"
+
+func (g *Game) CreateShips(ri int, shipTypeName string, planetNumber int, quantity int) error {
+	return g.createShips(ri, shipTypeName, planetNumber, quantity)
+}
+
+func (g Game) ListShipGroups(ri int) iter.Seq2[int, ShipGroup] {
+	return g.listShipGroups(ri)
+}