Developed a user experience enhancement for the pedrolivaresanchez/emergency-cv repository by adding a new Sidebar navigation item, "Encontrar tu Coche," which directs users to the Lost Vehicle Registry for registering and consulting lost vehicles. The work focused on frontend development using React and TypeScript, with the navigation logic implemented in Sidebar.js. To ensure reliability, an automated Playwright test was created to validate the end-to-end navigation flow to the external registry URL. This feature improved accessibility to critical registry services, demonstrating attention to both user interface design and robust testing practices within a focused, single-feature development cycle.