More fixes

Program.cs

@@ -332,6 +332,15 @@ public class Program
     
     static async Task HandleCreateLobbyAsync(ConnectedClient client, CreateLobby message)
     {
+        // If the client supplied a fresh display name on the create call,
+        // adopt it as the connection's authoritative name. ClientHello-time
+        // names are stale because the handshake fires before the user has
+        // had a chance to type into the nickname field; without this
+        // override the server records the user as the prefab default
+        // ("Hrac") even when they typed a real name.
+        if (!string.IsNullOrWhiteSpace(message.DisplayName))
+            client.DisplayName = message.DisplayName.Trim();
+
         var (lobby, joinCode, error) = await _lobbyManager.CreateLobbyAsync(
             client.ClientUuid, client.DisplayName, message);
         
@@ -360,6 +369,11 @@ public class Program
     
     static async Task HandleJoinLobbyAsync(ConnectedClient client, JoinLobby message)
     {
+        // Mirror of HandleCreateLobbyAsync: adopt the freshly-typed name if
+        // the client supplied one. See that method's comment for rationale.
+        if (!string.IsNullOrWhiteSpace(message.DisplayName))
+            client.DisplayName = message.DisplayName.Trim();
+
         var clientIp = client.Endpoint.Split(':')[0];
         var (lobby, error) = await _lobbyManager.JoinLobbyAsync(
             clientIp, client.ClientUuid, client.DisplayName, message.JoinCode, message.Password);