rafaelfgx/Architecture — reverse-engineered prompt

Build me a starter web app with a .NET 10 backend, an Angular 21 frontend, and SQL Server, set up as a clean architecture example I can actually use as a base for new projects. I want it organized by feature, not by technical type, with a clear split between web, application flow, domain rules, data models, and database access. Keep the backend simple and clean, with thin controllers, mediator style requests and handlers, centralized validation, logging, security, and consistent result responses. On the frontend, please include the basic app structure with services, route guards, HTTP interception, and global error handling, plus a simple UI using UIkit. Add at least one small sample feature that goes all the way from screen to API to database so the pattern is easy to understand. Make it easy to run locally and with Docker, and wire it so it opens on localhost 8090. If you need to, look up current docs online and use sensible defaults.