feat: game lobby service

gateway/README.md

@@ -486,8 +486,11 @@ in v1 is exactly:
 - `lobby.application.submitted`
 - `lobby.membership.approved`
 - `lobby.membership.rejected`
+- `lobby.membership.blocked`
 - `lobby.invite.created`
 - `lobby.invite.redeemed`
+- `lobby.race_name.registration_eligible`
+- `lobby.race_name.registered`
 
 `lobby.application.submitted` is published toward `Gateway` only for the
 private-game owner flow. The public-game variant is email-only.

gateway/internal/downstream/userservice/client_test.go

@@ -98,7 +98,7 @@ func TestHTTPClientExecuteUpdateMyProfileProjectsConflict(t *testing.T) {
 
 		body, err := io.ReadAll(request.Body)
 		require.NoError(t, err)
-		require.JSONEq(t, `{"race_name":"Nova Prime"}`, string(body))
+		require.JSONEq(t, `{"display_name":"NovaPrime"}`, string(body))
 
 		writer.WriteHeader(http.StatusConflict)
 		require.NoError(t, json.NewEncoder(writer).Encode(&usermodel.ErrorResponse{
@@ -111,7 +111,7 @@ func TestHTTPClientExecuteUpdateMyProfileProjectsConflict(t *testing.T) {
 	defer server.Close()
 
 	client := newTestHTTPClient(t, server)
-	payload, err := transcoder.UpdateMyProfileRequestToPayload(&usermodel.UpdateMyProfileRequest{RaceName: "Nova Prime"})
+	payload, err := transcoder.UpdateMyProfileRequestToPayload(&usermodel.UpdateMyProfileRequest{DisplayName: "NovaPrime"})
 	require.NoError(t, err)
 
 	result, err := client.ExecuteCommand(context.Background(), downstream.AuthenticatedCommand{
@@ -338,7 +338,8 @@ func sampleAccountResponse() *usermodel.AccountResponse {
 		Account: usermodel.Account{
 			UserID:            "user-123",
 			Email:             "pilot@example.com",
-			RaceName:          "Pilot Nova",
+			UserName:          "player-abcdefgh",
+			DisplayName:       "PilotNova",
 			PreferredLanguage: "en",
 			TimeZone:          "Europe/Kaliningrad",
 			DeclaredCountry:   "DE",