devarch-module

# Backend Pattern (MediatR CQRS / IResult / AOP) <!-- routing-eval reads this line; it lives in the BODY so the always-on skill LISTING stays inside Claude Code's budget (1% of the context window) — an overflowing listing gets descriptions truncated or dropped, which strips the very keywords a match depends on. --> Trigger phrases: "devarch-module", "new handler", "write a command", "add a query", "validator", "aspect" > **This is the DEFAULT backend pattern, not the only one.** `backend-expert-csk` is pattern-neutral; it applies > whichever backend-pattern skill the project ships. A project on Clean Architecture, Vertical Slice, Minimal API, > or plain layered replaces this skill with its own (same format) — the agent then follows that. Nothing forces DevArch. > **Kit adaptation (local, .claude/):** `backend-expert-csk` applies the `devarch-module` skill. Sources (alignment): > the DevArchitecture pattern — **its name does NOT leak into generated code / namespace / file / comment / csproj / Swagger / > JWT (§4.2).** The pattern lives here; the generated artifact is written with project-specific names. ## Layout Three folders under `Business/Handlers/{Entity}/`: `Commands/` · `Queries/` · `ValidationRules/`. Each request + its handler lives **in a single file, nested**. ## Command pattern (write) - Request class: `IRequest<IResult>` (or `IRequest<IDataResult<T>>` if it returns data). - Handler: `IRequestHandler<TRequest, IResult>` inside the outer class; depend...