Add BAD_REQUEST status code

source/services/transport/ws-transport.ts

@@ -7,11 +7,13 @@ import { toExtendedJson, fromExtendedJson } from '@xo-cash/utils';
 import { z } from 'zod';
 
 import type { Logger } from '../../utils/logger.ts';
-import { ApplicationError, normalizePublicError } from '../../errors/index.ts';
 import type { ApplicationRequest, ApplicationRouter } from '../router.ts';
-import { WSStream } from '../stream/ws-stream.ts';
 import type { AppEnv, UpgradeTransportRouter } from './transport-router.ts';
 
+import { ApplicationError, normalizePublicError } from '../../errors/index.ts';
+import { HTTP_STATUS_CODE_BAD_REQUEST } from '../../constants.ts';
+import { WSStream } from '../stream/ws-stream.ts';
+
 /** Default WebSocket upgrade path for application messages. */
 const WS_ROUTE = '/ws';
 
@@ -198,7 +200,7 @@ export class WsTransportRouter implements UpgradeTransportRouter {
         try {
             decoded = fromExtendedJson(payload);
         } catch {
-            throw new ApplicationError(400, 'Invalid JSON in WebSocket message');
+            throw new ApplicationError(HTTP_STATUS_CODE_BAD_REQUEST, 'Invalid JSON in WebSocket message');
         }
 
         const envelope = wsRequestSchema.parse(decoded);