Files
atomic-design-poc/docs
ehoandClaude Opus 5 f19185ed81 refactor(auth): land Session -> Principal, add MedewerkerAdapter (RB-13)
ADR-0002 SS3 models Zorgverlener/Medewerker as different Principal
variants with different login flows. Actor #2 (apps/behandelportal)
landed in WP-61/67 and the union never followed: grep -rn "Principal"
returned one hit, a comment. Both apps' auth/domain/session.ts stayed
byte-identical (`{ bsn, naam }`), so the backoffice's Behandelaar
carried a BSN and logged into the backoffice as a citizen, by DigiD,
under a fabricated citizen's name (login.page.ts). The divergence
ADR-0002 predicted took an orthogonal side door instead
(medewerker.interceptor.ts's X-Medewerker/X-Rollen stamp, which never
touches SessionStore) -- which is why ssp/auth and bhp/auth still
measured as 100%/84% duplicated after ADR-C-006 shared the route
guards. RB-09 (landed the day before) made the backend's
IIdentityProvider able to say "no identity" and fail closed; this
ticket is its named FE half.

Each app's auth/domain/session.ts becomes principal.ts, holding the
one Principal variant that app actually has an actor for: ssp keeps
`{ kind: 'zorgverlener', bsn, naam }` (G1 still strips the BSN before
persisting); behandelportal gets `{ kind: 'medewerker', medewerkerId,
naam, rollen }` (no BSN to strip -- G2 shape validation only). A new
MedewerkerAdapter replaces DigidAdapter in behandelportal, resolving
the existing MEDEWERKER_ID/currentRollen() dev stand-in into a
Principal; because there is no credential to check, it returns
Principal directly rather than a Result whose error variant could
never occur. login.page.ts stops being a BSN/wachtwoord form -- one
explainer line and an "Inloggen met SSO" button -- and its dead
error-handling branch goes with the Result wrapper that justified it.

Measured with tools/baseline-scan.mjs --dup: auth duplication drops
from 168/168 (ssp) and 168/200 (bhp) to 32/179 and 32/259 -- under the
backlog's <40 target. What remains is the ADR-C-006 route-guard
re-export (deliberately identical), generic test/story-file
boilerplate, and one shared fragment of the root-singleton-store
idiom -- not re-converged identity or login-flow logic. SS3's
prediction that the two actors would authenticate differently enough
to justify not sharing auth has now actually been tested, not just
asserted, and held.

Also: renamed Session.bsn to Principal.bsn in two doc comments
(libs/shared/src/infrastructure/subject.ts, subject.interceptor.ts)
that cited the old type name; regenerated
libs/shared/docs/behaviour-spec.mdx (generated file, per its own
banner); recorded the resolution in ADR-0002 as a new amendment,
replacing its "Known debt" section.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-08-27 16:54:26 +02:00
..

Documentation

Docs are split by kind, and kept out of each other's way:

  • reference/ — information. How the system works and why: architecture, decisions (ADRs), the FP/TEA/atomic learning guide, accessibility and UX reference. Stable knowledge, not tied to a sprint.
  • project/ — administration. Planning and tracking: the work-package backlog, product requirements (PRDs), and the (superseded) roadmap. This is the moving, process-facing material.

Teaching material that is best read next to the components lives in Storybook, not here — see the Foundations section (libs/shared/docs/*.mdx, run npm run storybook). The reference/ docs are the long-form source; the Foundations pages are the condensed, cross-linked curriculum.

Starting out? Foundations → Learning Path (libs/shared/docs/learning-path.mdx) is a paced, hands-on three-day route through the codebase; Foundations → Overview (overview.mdx) is the map of every idea, cross-linked.

reference/ — information

Doc What it is
architecture/ARCHITECTURE.md The architecture walkthrough: contexts/layers, state management, parse-don't-validate, the feature recipe, the .NET backend seam.
architecture/0001-bff-lite-decision-dtos.md ADR — BFF-lite endpoints + decision DTOs (backend decides, FE renders).
architecture/0002-user-groups-and-bounded-contexts.md ADR — user groups as actors; identity vs authorization.
architecture/0003-cibg-huisstijl.md ADR — adopt CIBG Huisstijl (vendored Bootstrap 5.2) + the token bridge.
architecture/0004-stamdata-as-code.md ADR — business-tunable reference data as typed, compile-time-validated config (not a production DB).
architecture/0005-openzaak-behind-bff.md ADR — connect to OpenZaak (ZGW APIs) behind the BFF via a config-gated data-source seam; the FE never changes.
architecture/0006-test-data-builders.md ADR — build test data through the production door: type-state builders, reducer replay, and which fixture idiom fits which test.
openzaak-integration.md How the BFF sources cases from OpenZaak (the IZaakSource seam + ZGW client), and how to add the next slice.
../backend/openzaak/README.md Docker harness for running OpenZaak locally: bring-up, integration test, notifications, teardown.
stamdata.md How stamdata (config-as-code reference data) is laid out, how to add a table with zero UI code, and why coupling stays low.
audit-log.md How the data-minimised authz/PII-reveal audit trail is built, how to audit a new action, and the one-producer-hub coupling.
feature-flags.md How runtime feature flags work (catalog-as-code + runtime state), how to add one, and the hand-wired gating coupling to watch.
scaffolding.md How code generation & scaffolding work: plop generators (gen:value-object/gen:form-machine), the NSwag client (gen:api), showcase snippets, and the skill recipes.
roles-and-access.md The roles/actors + capability model: who can do what, how to switch roles in dev, and what each unlocks.
architecture/dependencies.md Bounded-context + atomic-layer boundaries: the allowed-import rules, how they're enforced (dep:check) and visualized (dep:graph).
architecture/dependency-graph.md Generated mermaid graph of contexts × layers (regenerate with npm run dep:graph).
fp-tea-atomic-design.md Long-form learning guide: FP + The Elm Architecture + atomic design.
wcag-checklist.md Manual WCAG checks automation can't catch (tab order, focus traps, reflow).
ui-ux-audit.md Early UI/UX audit against NL Design System (predates ADR-0003 — read in that light).

project/ — administration

Doc What it is
backlog/README.md The work-package backlog index — the live tracker, with the session protocol.
prd/0001-mijn-aanvragen-en-wizardstatus.md PRD — "Mijn aanvragen": running wizards, application status, document preview.
prd/0002-attribute-based-access-control.md PRD — attribute-based access control in the UI.
prd/0003-brief-v2-demo-script.md Demo script — Brief v2 scenarios mapped to a URL + click path (WP-28).
SHOWCASE-ROADMAP.md Superseded roadmap (absorbed into project/backlog/) — kept for history.