add server to monorepo.

packages/server/src/loaders/logger.ts

@@ -0,0 +1,13 @@
+import winston from 'winston';
+
+const transports = {
+  console: new winston.transports.Console({ level: 'warn' }),
+  file: new winston.transports.File({ filename: 'stdout.log' }),
+};
+
+export default winston.createLogger({
+  transports: [
+    transports.console,
+    transports.file,
+  ],
+});