fix: Add logger for logging errors

src/start.ts

@@ -1,7 +1,17 @@
 import { Worker } from './worker.js';
+import { createServiceConfig } from '@restorecommerce/service-config';
+import { createLogger } from '@restorecommerce/logger';
+
+// cfg and logger
+const cfg = createServiceConfig(process.cwd());
+const loggerCfg = cfg.get('logger');
+loggerCfg.esTransformer = (msg) => {
+  msg.fields = JSON.stringify(msg.fields);
+  return msg;
+};
+const logger = createLogger(loggerCfg);
 
 const worker = new Worker();
-const logger = worker.logger;
 worker.start().then().catch((err) => {
   logger.error('startup error', err);
   process.exit(1);