jmarin-cpu/DesplieguesAngularTest ? reverse-engineered prompt

Build me a simple Angular app that starts with a clean homepage and works smoothly with the default Angular setup.

I want it to run locally with ng serve, open in the browser, and build without errors. Keep the app polished and easy to extend, with a welcoming main screen, some basic navigation if it makes sense, and a nice responsive layout. If there are any placeholder areas, make them feel intentional rather than empty.

Please also make sure the project is set up so unit tests can run normally, and leave the code in a state where I can easily add more pages or components later. Use the current Angular docs online if you need to check anything.