feat: version 3.1.0 -- Acceso por modulo y por usuario

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

backend/src/middleware/auth.js

@@ -2,6 +2,7 @@ import jwt from 'jsonwebtoken';
 import { env } from '../config/env.js';
 import { pool } from '../config/db.js';
 import { fail } from '../utils/http.js';
+import { loadModules } from './modules.js';
 
 export async function requireAuth(req, res, next) {
   const header = req.headers.authorization || '';
@@ -31,6 +32,7 @@ export async function requireAuth(req, res, next) {
     email: user.email,
     roleCode: user.role_code,
     departmentId: user.department_id,
+    modules: await loadModules(user.id, user.role_code),
   };
   next();
 }