feat: implement gas and delivery admin systems

backend/api/internal/logic/delivery/menu_test.go

@@ -0,0 +1,23 @@
+package delivery
+
+import "testing"
+
+func TestMenusOnlyAllowAdmin(t *testing.T) {
+	if len(MenusForRole("admin")) == 0 {
+		t.Fatal("admin must receive delivery menus")
+	}
+	for _, role := range []string{"root", "dispatcher", "warehouse", "quality", "delivery", ""} {
+		if len(MenusForRole(role)) != 0 {
+			t.Fatalf("role %q must not receive delivery admin menus", role)
+		}
+	}
+}
+
+func TestMenusExcludeInventoryAndEcommerce(t *testing.T) {
+	for _, menu := range MenusForRole("admin") {
+		switch menu.GroupCode {
+		case "inventory", "warehouse", "ec":
+			t.Fatalf("forbidden menu group %q", menu.GroupCode)
+		}
+	}
+}