Move the authoritative business rules off the frontend into a real backend,
realising the BFF-lite + decision-DTO design (ADR-0001) that until now lived
only in static mock JSON.
Backend (backend/):
- ASP.NET Core (.NET 10) minimal API, contract-first, Swagger UI at /swagger.
- DDD Domain/ rules layer: profession derivation + applicable policy questions
(DiplomaRules), herregistratie eligibility + reason (HerregistratieRule),
scholing threshold (IntakePolicy), submit rejections + reference generation
(SubmissionRules). In-memory seeded data, ProblemDetails (RFC 7807) errors.
- 27 xUnit tests: rule units + endpoint integration incl. BRP no-address and
DUO not-found fallbacks and 422 submit paths.
Frontend (only infrastructure/ + contracts/ change, as the architecture promised):
- NSwag-generated typed client (api-client.ts), routed through Angular HttpClient
via a small fetch adapter so the ?scenario= interceptor still applies.
- GET adapters use resource({ loader: client.x }); submit commands call the client
and map ProblemDetails -> err. The hardcoded uren==0 / manual-diploma rules are
deleted (now server-side). Domain, stores, UI and format validators unchanged.
- Deleted the now-dead public/mock/*.json.
Tooling/docs:
- npm start proxies /api -> backend; npm run gen:api regenerates the client;
docker compose up runs both (bind mounts use :z for SELinux/Fedora).
- backend/README.md walkthrough: adding a policy question is a one-file backend
change, no FE change, no client regen. Updated CLAUDE.md + ARCHITECTURE.md.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
A progressive teaching guide (docs/fp-tea-atomic-design.md): FP fundamentals,
The Elm Architecture, and atomic design, taught Elm-then-this-app with the real
store/machine/value-object code, plus four recipes and a glossary. It owns the
teaching arc and cross-references ARCHITECTURE.md/ADR-0001 rather than duplicating
them. Documents reality where the PRD diverged (no state-debug-view feature; per-
wizard stores; reduce vs update naming) and flags the absent debug view as an open
question. Adds pointer links from ARCHITECTURE.md and CLAUDE.md.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Checkpoint of in-progress work: the registration wizard (address prefill,
DUO diploma lookup, policy questions), decision-DTO contracts, parse-don't-
validate value objects, infrastructure adapters, plus CLAUDE.md and the
architecture/ADR docs.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
