Clan System Part 1 (#3276)

## Description:

Properly split out clantags and usernames, a clantag should not be part
of a username.

<img width="285" height="286" alt="image"
src="https://github.com/user-attachments/assets/8ac56e82-b12c-4fc0-9774-e445252a6e61"
/>

https://api.openfront.dev/game/ojkqZFb2


<img width="296" height="596" alt="image"
src="https://github.com/user-attachments/assets/85152f80-c111-4f87-b85b-8516c9c6137b"
/>


https://api.openfront.dev/game/MF32BkVc


requires;
https://github.com/openfrontio/infra/pull/264

## Please complete the following:

- [x] I have added screenshots for all UI updates
- [x] I process any text displayed to the user through translateText()
and I've added it to the en.json file
- [x] I have added relevant tests to the test directory
- [x] I confirm I have thoroughly tested these changes and take full
responsibility for any bugs introduced

## Please put your Discord username so you can be contacted if a bug or
regression is found:

w.o.n

src/client/ClientGameRunner.ts

@@ -56,6 +56,7 @@ export interface LobbyConfig {
   serverConfig: ServerConfig;
   cosmetics: PlayerCosmeticRefs;
   playerName: string;
+  playerClanTag: string | null;
   gameID: GameID;
   turnstileToken: string | null;
   // GameStartInfo only exists when playing a singleplayer game.
@@ -228,6 +229,7 @@ async function createClientGame(
     gameMap,
     clientID,
     lobbyConfig.playerName,
+    lobbyConfig.playerClanTag,
     lobbyConfig.gameStartInfo.gameID,
     lobbyConfig.gameStartInfo.players,
   );
@@ -301,6 +303,7 @@ export class ClientGameRunner {
       {
         persistentID: getPersistentID(),
         username: this.lobby.playerName,
+        clanTag: this.lobby.playerClanTag ?? null,
         clientID: this.clientID,
         stats: update.allPlayersStats[this.clientID],
       },