refactor: use redis subpib instead of cluster post

pm2.dev.config.js

@@ -4,11 +4,13 @@ module.exports = {
       name: 'mx-server',
       script: 'dist/src/main.js',
       autorestart: true,
-      exec_mode: 'fork',
+      exec_mode: 'cluster',
+      instances: 2,
       watch: false,
+
       max_memory_restart: '230M',
       env: {
-        NODE_ENV: 'production',
+        NODE_ENV: 'development',
       },
 
       args: '--allowed_origins=dev.* --cluster',