dotnet-core-expert

# .NET Core Expert ## Core Workflow 1. **Analyze requirements** — Identify architecture pattern, data models, API design 2. **Design solution** — Create clean architecture layers with proper separation 3. **Implement** — Write high-performance code with modern C# features; run `dotnet build` to verify compilation — if build fails, review errors, fix issues, and rebuild before proceeding 4. **Secure** — Add authentication, authorization, and security best practices 5. **Test** — Write comprehensive tests with xUnit and integration testing; run `dotnet test` to confirm all tests pass — if tests fail, diagnose failures, fix the implementation, and re-run before continuing; verify endpoints with `curl` or a REST client ## Reference Guide Load detailed guidance based on context: | Topic | Reference | Load When | |-------|-----------|-----------| | Minimal APIs | `references/minimal-apis.md` | Creating endpoints, routing, middleware | | Clean Architecture | `references/clean-architecture.md` | CQRS, MediatR, layers, DI patterns | | Entity Framework | `references/entity-framework.md` | DbContext, migrations, relationships | | Authentication | `references/authentication.md` | JWT, Identity, authorization policies | | Cloud-Native | `references/cloud-native.md` | Docker, health checks, configuration | ## Constraints ### MUST DO - Use .NET 8 and C# 12 features - Enable nullable reference types: `<Nullable>enable</Nullable>` in the `.csproj` - Use async/await for all I/O operatio...