feat(scum): add bounded vehicle spawn adapter

plugins/examples/scum-server-plugin/companion/config_test.go

@@ -0,0 +1,16 @@
+package companion
+
+import "testing"
+
+func TestCompanionVehicleHandlerCapabilityIsExplicitAndBounded(t *testing.T) {
+	base := append([]string(nil), requiredCapabilities...)
+	if err := validateCapabilities(base); err != nil {
+		t.Fatalf("base companion profile must remain valid: %v", err)
+	}
+	if err := validateCapabilities(append(base, "handler.vehicle.spawn")); err != nil {
+		t.Fatalf("explicit vehicle handler declaration must be valid: %v", err)
+	}
+	if err := validateCapabilities(append(base, "handler.raw.rcon")); err == nil {
+		t.Fatal("undeclared raw command handler capability must be rejected")
+	}
+}