refactor: implement centralized auth middleware and standardize cross-subdomain session management

realtime/src/index.js

@@ -1,5 +1,6 @@
 const express = require('express');
 const crypto = require('crypto');
+const parser = require('cookie-parser');
 const app = express();
 
 const db = require('./store/db')
@@ -7,6 +8,7 @@ const redis = require('./store/redis');
 const wsHandler = require('./ws/handler');
 
 app.use(express.json());
+app.use(parser());
 
 // CORS — consenti richieste dalla console e altri client browser
 app.use((req, res, next) => {