fix: update Dockerfile and enhance article deletion route

- Changed the COPY command in Dockerfile to reference workers.json directly.
- Added basic authentication middleware to the article deletion route for improved security.

web/backend/routes/articles.js

@@ -4,7 +4,7 @@ import { basicAuthMiddleware } from '../middlewares/auth.js';
 
 const router = express.Router();
 
-router.delete('/', async (req, res) => {
+router.delete('/', basicAuthMiddleware, async (req, res) => {
   try {
     const count = await clearAllArticles();
     res.json({ success: true, message: `Todos los artículos eliminados: ${count} artículos borrados`, count });