Enhance Jenkinsfile for frontend testing and update Playwright configuration

- Added a new 'E2E (docker compose + Playwright)' stage in the Jenkinsfile to run end-to-end tests using Docker Compose and Playwright.
- Updated the 'Test frontend' stage to utilize the Playwright test image and improved error handling for missing files.
- Modified Playwright configuration to use an environment variable for the base URL, enhancing flexibility in CI environments.
- Expanded TypeScript configuration to include additional test and configuration files for better type checking.

frontend/playwright.config.ts

@@ -1,6 +1,6 @@
 import { defineConfig } from '@playwright/test';
-import { fileURLToPath } from 'url';
-import path from 'path';
+import { fileURLToPath } from 'node:url';
+import path from 'node:path';
 
 const __dirname = path.dirname(fileURLToPath(import.meta.url));
 
@@ -13,7 +13,7 @@ export default defineConfig({
     forbidOnly: inCI,
     timeout: 60000,
     use: {
-        baseURL: 'http://localhost:5173',
+        baseURL: process.env.PLAYWRIGHT_TEST_BASE_URL || 'http://localhost:5173',
         // Sin display en agentes de integración: obligatorio headless
         headless: inCI ? true : false
     },