Added DevExpress Dashboard to ASP.NET Core API and both Blazor WASM/Server frontends. Configured dashboard storage, sample data source, and API endpoint. Updated Blazor projects with dashboard packages, styles, and a new dashboard page. Navigation and configuration updated to support dashboard integration.
Added comprehensive inline comments (mainly in German) to key files (index.html, Program.cs, App.razor, MainLayout.razor, NavMenu.razor, Catalogs.razor, CatalogApiClient.cs) to clarify their roles and the overall application flow. Updated Home.razor with a clearer heading and intro. Introduced Ablauf.cs, which documents the loading order and responsibilities of each major component. These changes enhance codebase clarity and maintainability, especially for German-speaking developers.
- Split `CatalogDto` into `CatalogReadDto` and `CatalogWriteDto` for clear separation of read/write operations in both backend and frontend.
- Updated API controllers, services, and AutoMapper profiles to use new DTOs; ensured audit fields are set in service layer.
- Enabled CORS in the API project to support Blazor WASM frontend.
- Added new Blazor WebAssembly project (`DbFirst.BlazorWasm`) with catalog management UI, API client, Bootstrap v5.1.0 styling, and configuration-driven API base URL.
- Included `bootstrap.min.css` and its source map for frontend styling and easier debugging.
- Updated solution file to include new project and support multiple build configurations.
- Result: improved API design, clean DTO separation, and a modern interactive frontend for catalog management.
