refactor(go): default to go vehicle topics

go/vehicle-gateway/internal/eventbus/nats_sink_test.go

@@ -40,6 +40,23 @@ func TestNATSSinkRoutesRawAndUnifiedSubjects(t *testing.T) {
 	}
 }
 
+func TestNATSSinkDefaultsToGoRawSubjects(t *testing.T) {
+	publisher := &recordingNATSPublisher{}
+	sink := newNATSSinkWithPublisher(publisher, NATSConfig{})
+
+	err := sink.PublishRaw(context.Background(), envelope.FrameEnvelope{
+		Protocol:     envelope.ProtocolJT808,
+		Phone:        "13307795425",
+		ReceivedAtMS: 1782918600000,
+	})
+	if err != nil {
+		t.Fatalf("PublishRaw() error = %v", err)
+	}
+	if got, want := publisher.messages[0].subject, "vehicle.raw.go.jt808.v1"; got != want {
+		t.Fatalf("subject = %q, want %q", got, want)
+	}
+}
+
 type recordingNATSPublisher struct {
 	messages []recordedNATSMessage
 }