Add 5 pi extensions: pi-subagents, pi-crew, rpiv-pi, pi-interactive-shell, pi-intercom

extensions/rpiv-pi/skills/annotate-inline/examples/root-dotnet-clean-arch.md

@@ -0,0 +1,38 @@
+# CLAUDE.md
+
+ASP.NET Core 8 Web API with Clean Architecture (CQRS + MediatR).
+
+## Project map
+
+- `src/Api/` - ASP.NET Core controllers, middleware, DI setup
+- `src/Application/` - MediatR handlers, validators, DTOs
+- `src/Domain/` - Entities, value objects, domain events
+- `src/Infrastructure/` - EF Core, external services, file storage
+- `tests/` - Unit and integration tests
+
+## Commands
+
+| Command | What it does |
+|---|---|
+| `dotnet build` | Build solution |
+| `dotnet test` | Run all tests |
+| `dotnet run --project src/Api` | Start API locally |
+| `dotnet ef migrations add <Name> -p src/Infrastructure` | Create EF migration |
+| `dotnet ef database update -p src/Infrastructure` | Apply migrations |
+
+<important if="you are adding a new API endpoint">
+- Add controller in `Api/Controllers/` inheriting `BaseApiController`
+- Add command/query + handler + validator in `Application/Features/`
+- See `Application/Features/Orders/Commands/CreateOrder/` for the pattern
+</important>
+
+<important if="you are adding or modifying EF Core migrations or database schema">
+- Entities configured via `IEntityTypeConfiguration<T>` in `Infrastructure/Persistence/Configurations/`
+- Always create a migration after schema changes — never modify existing migrations
+</important>
+
+<important if="you are writing or modifying tests">
+- Unit tests: xUnit + NSubstitute, one test class per handler
+- Integration tests: `WebApplicationFactory<Program>` with test database
+- See `tests/Application.IntegrationTests/TestBase.cs` for setup
+</important>