feat: import services and standardize Go 1.26.5

cmd/main/main_test.go

@@ -0,0 +1,19 @@
+package main
+
+import "testing"
+
+func TestSelectComponents(t *testing.T) {
+	selected, err := selectComponents("order, wallet")
+	if err != nil {
+		t.Fatal(err)
+	}
+	if len(selected) != 2 || selected[0].name != "order" || selected[1].name != "wallet" {
+		t.Fatalf("unexpected selection: %#v", selected)
+	}
+}
+
+func TestSelectComponentsRejectsUnknown(t *testing.T) {
+	if _, err := selectComponents("missing"); err == nil {
+		t.Fatal("expected unknown component error")
+	}
+}