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feat(behandelportal): WP-64 werkvoorraad (queue) screen
New GET /werkvoorraad endpoint lists aanvragen still open (Ingediend/InBehandeling),
gated by the medewerker capability (CanBeoordelen) rather than the admin role — reuses
the existing ApplicationSummaryDto, no new DTO. GET /me now surfaces aanvraag:beoordelen
for a behandelaar so the FE can gate with the same AccessStore/capabilityGuard idiom
every other page uses.

FE: a behandeling domain type deliberately narrower than ssp's full AanvraagStatus
union (only the two open tags — illegal states unrepresentable), composed into a
werkvoorraad-list organism from existing shared/ui molecules. Replaces WP-61's
scaffold placeholder as the app's real landing page.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
2026-08-02 22:02:35 +02:00

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Markdown

# WP-64 — Behandelportal: werkvoorraad (queue) screen
Status: done
Phase: 11 — Behandelportal
## Why
First real screen in the new app — a read-only list of aanvragen needing treatment (the
"werkvoorraad"), gated by the medewerker identity from WP-62 and backed by the real status
DTO from WP-63. This is the smallest useful vertical slice of actual case-treatment
functionality — usable and demoable on its own, even before any decision can be recorded
(WP-65).
## Read first
- WP-61/62/63 outcomes
- `bff-endpoint` skill (screen-shaped decision DTO recipe)
- `src/app/registratie/ui/admin-cases.page.ts` (the existing cross-owner list, for what
to avoid repeating — that page is audit/delete, this one is a queue)
## Decisions (pre-made, don't relitigate)
- New BFF-lite endpoint (decision-enriched DTO) shaped for a werkvoorraad screen — not a
reuse of the existing `/admin/cases` endpoint, which is audit-shaped, not queue-shaped
(per CLAUDE.md's per-screen endpoint discipline).
- Gated by the `canBeoordelen`-style capability from WP-62, not a new ad hoc role check.
- Domain first, then infrastructure, application, UI — per the house `new-feature`
recipe.
## Files
New backend endpoint + DTO in `BigRegister.Api`; new `behandeling` context in the
behandelportal app (domain/infrastructure/application/ui per the house layering).
## Steps
1. Backend: new screen-shaped endpoint returning aanvragen needing treatment
(status = `InBehandeling`/`Ingediend`), gated by WP-62's capability.
2. FE: scaffold the `behandeling` context (domain → infrastructure → application → ui),
following `new-feature`.
3. UI: a list page (queue), composed from the shared `shared/ui` kernel — no new atoms
unless nothing existing fits.
4. Storybook story for the new list component/page, a11y-checked.
## Acceptance criteria
- [x] Werkvoorraad screen lists aanvragen needing treatment for an authenticated
medewerker.
- [x] `npm run ci` green in the behandelportal app; Storybook story present.
- [x] Endpoint follows BFF-lite discipline (decision-enriched, not raw passthrough).
## Outcome
`GET /werkvoorraad` reuses the existing `ApplicationSummaryDto`/`IZaakSource.ListCases`
no new DTO — filtered server-side to `Status.Tag is "Ingediend" or "InBehandeling"`. Gated
by a new `Werkvoorraad` local-function twin of `CasesAdmin`, but checking
`Authz.CanBeoordelen(ctx.Caller())` (the CallerIdentity directly) rather than a
role-only `Principal` — a zorgverlener with `X-Role=admin` is still denied (covered by a test).
One course correction beyond the pre-made decisions: `GET /me` didn't expose any
capability a medewerker could hold (`RoleCapabilities` only switches on `PrincipalRole`,
which every `MedewerkerCaller` also carries but doesn't determine `CanBeoordelen`). Added
one line — `if (Authz.CanBeoordelen(ctx.Caller())) caps.Add("aanvraag:beoordelen")` — and a
matching `Capability` union member in `libs/shared`, so the FE page can use the same
deny-by-default `AccessStore`/`capabilityGuard` idiom every other gated page uses (avoids a
wasted 403 GET and a denial flash), instead of inventing a second gating mechanism.
FE: the queue item's domain type (`behandeling/domain/werkvoorraad-item.ts`) is
deliberately **narrower** than the SSP's full `AanvraagStatus` union — only
`Ingediend`/`InBehandeling` — so a case the backend's filter let through with any other
tag is a parse error, not a silently-rendered row. Composed entirely from existing
`libs/shared/ui` molecules (`ApplicationListComponent` + `ApplicationLinkComponent`, the
same ones ssp's dashboard uses) via one new organism, `WerkvoorraadListComponent` — no new
atom. The stopgap `behandeling.page.ts`/`BehandelingPage` (WP-61's scaffold placeholder,
its own TODO said to replace it) is gone; `/dashboard` now loads `WerkvoorraadPage`
directly, and the redundant `/behandeling` route (same placeholder, two paths) was dropped.
## Verification
`npm run ci` in the behandelportal app; `cd backend && dotnet test`; manual: log in as a
stub medewerker, see the queue populated from seeded aanvragen.
## Out of scope
Viewing a single zaak's detail (WP-65); recording any decision (WP-65).
## Risks
None major — this is a read-only composition slice once WP-61-63 exist.
Depends on: WP-61, WP-62, WP-63.