refactor: remove setup command from host creation

src/core/game-host.ts

@@ -26,18 +26,15 @@ export class GameHost<TState extends Record<string, unknown>> {
     private _activePromptSchema: Signal<CommandSchema | null>;
     private _activePromptPlayer: Signal<string | null>;
     private _createInitialState: () => TState;
-    private _setupCommand: string;
     private _eventListeners: Map<'setup' | 'dispose', Set<() => void>>;
     private _isDisposed = false;
 
     constructor(
         registry: CommandRegistry<MutableSignal<TState>>,
         createInitialState: () => TState,
-        setupCommand: string,
         options?: GameHostOptions
     ) {
         this._createInitialState = createInitialState;
-        this._setupCommand = setupCommand;
         this._eventListeners = new Map();
 
         const initialState = createInitialState();
@@ -148,13 +145,11 @@ export class GameHost<TState extends Record<string, unknown>> {
 
 export function createGameHost<TState extends Record<string, unknown>>(
     module: GameModule<TState>,
-    setupCommand: string,
     options?: GameHostOptions
 ): GameHost<TState> {
     return new GameHost(
         module.registry,
         module.createInitialState,
-        setupCommand,
         options
     );
 }