[Refactor] 게임서버 모듈, 계층 리팩토링

packages/backend/gameserver/src/app.module.ts

@@ -3,19 +3,11 @@ import { AuthModule } from './auth/auth.module';
 import { GatewayModule } from './gateway/gateway.module';
 import { RoomModule } from './room/room.module';
 import { GameModule } from './game/game.module';
-import { ChatModule } from './chat/chat.module';
 import { LoggerModule } from './logger/logger.module';
 import { HttpLoggerMiddleware } from './middleware/http-logger.middleware';
 
 @Module({
-  imports: [
-    LoggerModule,
-    AuthModule,
-    GatewayModule,
-    RoomModule,
-    GameModule,
-    ChatModule,
-  ],
+  imports: [LoggerModule, AuthModule, GatewayModule, RoomModule, GameModule],
 })
 export class AppModule implements NestModule {
   configure(consumer: MiddlewareConsumer) {

packages/backend/gameserver/src/filters/ws-exception.filter.ts

@@ -0,0 +1,27 @@
+import { Catch, ArgumentsHost } from '@nestjs/common';
+import { BaseWsExceptionFilter, WsException } from '@nestjs/websockets';
+import { Socket } from 'socket.io';
+import { LoggerService } from '../logger/logger.service';
+
+@Catch()
+export class WebSocketExceptionFilter extends BaseWsExceptionFilter {
+  constructor(private readonly logger: LoggerService) {
+    super();
+  }
+
+  catch(exception: Error, host: ArgumentsHost) {
+    const client = host.switchToWs().getClient<Socket>();
+
+    let errorMessage: string;
+
+    if (exception instanceof WsException) {
+      errorMessage = exception.message;
+    } else {
+      errorMessage = exception.message || '알 수 없는 오류가 발생했습니다.';
+    }
+
+    this.logger.logError('websocket', exception);
+
+    client.emit('error', { errorMessage });
+  }
+}