feat(behandel): behandel-portal — werkbak + beoordeling (closes #13) (#87)

## What & why

Finishes **S-12 · Behandel-portal — werkbak + beoordeling**. The backend sub-slices (S-12a/b/c-1/c-2) were merged, but the slice's stated outcome — a behandel *portal* with medewerker login, a werkbak, and decide — had no frontend. This adds it.

- **`libs/auth`**: `MedewerkerAuthService` + `provideMedewerkerAuth` (Keycloak `medewerker` realm), a `roles`/`hasRole` surface on the shared `AuthService`, and a realm-roles protocol mapper so the SPA can read `behandelaar`/`teamlead` from the token. The BFF remains the security boundary (ADR-0013).
- **`apps/behandel`**: a new Nx Angular app mirroring self-service — medewerker OIDC login and a **werkbak** page listing registrations awaiting beoordeling (`GET /behandel/werkbak`) with per-row **Goedkeuren/Afwijzen** actions (`POST /behandel/registrations/{id}/decide`) that refresh the list. NL DS/Utrecht, standalone + signals.
- **e2e**: the walking-skeleton happy path now approves through the real portal (behandelaar logs in, finds the row by reference, clicks Goedkeuren) instead of the temporary admin endpoint.
- **infra/docs**: behandel service in compose (`:8142`, depends on Keycloak); added to the smoke `WAIT_SVCS` + CI log dump; `frontend-decisions.md` and `demo-script.md` updated.

Closes #13

## Definition of Done

- [x] Linked Gitea issue (above).
- [x] Failing test committed before the implementation.
- [x] Implementation makes the test pass; refactor commit if structure improved.
- [x] Conventional Commits referencing the issue (`refs #13`).
- [ ] CI green — all Gitea Actions jobs.
- [x] `docker compose up` from a fresh clone reaches green health checks within 3 minutes. *(behandel image + container verified locally; full stack gated in CI.)*
- [x] Docs updated if behaviour, contracts, or operations changed.
- [x] ADR added — ADR-0013 (merged with the backend sub-slices) already covers the wiring; no new decision here.
- [x] Demo note in `docs/demo-script.md`.

## Notes for reviewers

- Verified locally: auth + behandel + all frontend projects pass lint & unit tests (incl. axe WCAG 2.1 AA); production build green; the behandel Docker image builds and serves with the correct baked `medewerker` config + SPA fallback.
- The full compose-up smoke, e2e, and mutation are CI-gated (known local full-stack verify limits).
- **Follow-ups (not in scope):** the `WerkbakItem` contract has no citizen name (werkbak shows the BSN) — adding one is a BFF+domain contract change; and the domain's temporary admin `approve` endpoint is now unused by the e2e and could be removed.

Reviewed-on: #87

.gitea/workflows/ci.yaml

@@ -157,7 +157,7 @@ jobs:
       # Log dump must precede teardown (which removes the containers).
       - name: Dump container logs on failure
         if: failure()
-        run: docker compose -f infra/docker-compose.yml logs --no-color --tail=100 oz-init openzaak nrc-init nrc-web nrc-celery nrc-beat flowable-db flowable-rest flowable-init keycloak acl bff domain projection-db event-subscriber projection-api self-service 2>&1 || true
+        run: docker compose -f infra/docker-compose.yml logs --no-color --tail=100 oz-init openzaak nrc-init nrc-web nrc-celery nrc-beat flowable-db flowable-rest flowable-init keycloak acl bff domain projection-db event-subscriber projection-api self-service openbaar behandel 2>&1 || true
       - name: Tear down
         if: always()
         run: make down

Makefile

@@ -10,7 +10,7 @@ COMPOSE    := infra/docker-compose.yml
 # Long-running services with a healthcheck — the smoke polls these for readiness
 # (infra/wait-healthy.sh). One-shot init jobs (oz-init, nrc-init, flowable-init)
 # are not polled; they only need to have run. See docs/runbooks/gitea-actions-gotchas.md.
-WAIT_SVCS  := openzaak nrc-web acl bff domain event-subscriber projection-api self-service openbaar
+WAIT_SVCS  := openzaak nrc-web acl bff domain event-subscriber projection-api self-service openbaar behandel
 # Config files (OpenZaak data.yaml, Keycloak realms, Flowable BPMN) are streamed
 # into external named volumes via `docker cp` (infra/seed-config.sh) instead of
 # bind-mounted, because bind mounts don't reach sibling containers on the

apps/behandel/Dockerfile

@@ -0,0 +1,23 @@
+# Multi-stage build for the behandel portal (Angular → nginx).
+# Build context is the repo root (the app needs the pnpm workspace + libs). See infra/docker-compose.yml.
+FROM node:24-slim AS build
+WORKDIR /src
+RUN corepack enable && corepack prepare pnpm@11.5.2 --activate
+
+# Restore first (cached unless the manifests change).
+COPY package.json pnpm-lock.yaml pnpm-workspace.yaml nx.json tsconfig.base.json eslint.config.mjs ./
+RUN pnpm install --frozen-lockfile
+
+# Sources (only what the app + its libs need).
+COPY apps/behandel apps/behandel
+COPY libs libs
+RUN pnpm nx build behandel
+
+FROM nginx:1.27-alpine AS runtime
+COPY apps/behandel/nginx.conf /etc/nginx/conf.d/default.conf
+COPY --from=build /src/dist/apps/behandel/browser /usr/share/nginx/html
+# Compose-time OIDC config: the browser (Playwright, on the compose network) reaches Keycloak by
+# service name, so the token issuer matches the BFF's medewerker authority (host-consistent, ADR-0013).
+RUN printf '{ "authority": "http://keycloak:8080/realms/medewerker" }\n' > /usr/share/nginx/html/config.json
+
+EXPOSE 80

apps/behandel/eslint.config.mjs

@@ -0,0 +1,34 @@
+import nx from '@nx/eslint-plugin';
+import baseConfig from '../../eslint.config.mjs';
+
+export default [
+  ...nx.configs['flat/angular'],
+  ...nx.configs['flat/angular-template'],
+  ...baseConfig,
+  {
+    files: ['**/*.ts'],
+    rules: {
+      '@angular-eslint/directive-selector': [
+        'error',
+        {
+          type: 'attribute',
+          prefix: 'app',
+          style: 'camelCase',
+        },
+      ],
+      '@angular-eslint/component-selector': [
+        'error',
+        {
+          type: 'element',
+          prefix: 'app',
+          style: 'kebab-case',
+        },
+      ],
+    },
+  },
+  {
+    files: ['**/*.html'],
+    // Override or add rules here
+    rules: {},
+  },
+];

apps/behandel/nginx.conf

@@ -0,0 +1,24 @@
+server {
+  listen 80;
+  server_name _;
+  root /usr/share/nginx/html;
+  index index.html;
+
+  # Resolve the BFF via Docker's embedded DNS at request time (variable proxy_pass), so nginx starts
+  # even before the BFF is up and picks up restarts — instead of failing to load the config.
+  resolver 127.0.0.11 ipv6=off valid=30s;
+
+  # Same-origin API: proxy the behandel endpoint group to the bff service. The api-client uses
+  # relative URLs, so the browser calls this origin and nginx forwards to the BFF — no CORS, and the
+  # medewerker token (same-origin) is attached by the app's interceptor (ADR-0013).
+  location /behandel/ {
+    set $bff http://bff:8080;
+    proxy_pass $bff;
+    proxy_set_header Host $host;
+  }
+
+  # SPA fallback — Angular client-side routing.
+  location / {
+    try_files $uri $uri/ /index.html;
+  }
+}

apps/behandel/project.json

@@ -0,0 +1,80 @@
+{
+  "name": "behandel",
+  "$schema": "../../node_modules/nx/schemas/project-schema.json",
+  "projectType": "application",
+  "prefix": "app",
+  "sourceRoot": "apps/behandel/src",
+  "tags": [],
+  "targets": {
+    "build": {
+      "executor": "@angular/build:application",
+      "outputs": ["{options.outputPath}"],
+      "defaultConfiguration": "production",
+      "options": {
+        "outputPath": "dist/apps/behandel",
+        "browser": "apps/behandel/src/main.ts",
+        "tsConfig": "apps/behandel/tsconfig.app.json",
+        "assets": [
+          {
+            "glob": "**/*",
+            "input": "apps/behandel/public"
+          }
+        ],
+        "styles": ["apps/behandel/src/styles.css"]
+      },
+      "configurations": {
+        "production": {
+          "budgets": [
+            {
+              "type": "initial",
+              "maximumWarning": "1mb",
+              "maximumError": "2mb"
+            },
+            {
+              "type": "anyComponentStyle",
+              "maximumWarning": "4kb",
+              "maximumError": "8kb"
+            }
+          ],
+          "outputHashing": "all"
+        },
+        "development": {
+          "optimization": false,
+          "extractLicenses": false,
+          "sourceMap": true
+        }
+      }
+    },
+    "serve": {
+      "continuous": true,
+      "executor": "@angular/build:dev-server",
+      "defaultConfiguration": "development",
+      "configurations": {
+        "production": {
+          "buildTarget": "behandel:build:production"
+        },
+        "development": {
+          "buildTarget": "behandel:build:development"
+        }
+      }
+    },
+    "lint": {
+      "executor": "@nx/eslint:lint"
+    },
+    "test": {
+      "executor": "@angular/build:unit-test",
+      "options": {
+        "watch": false
+      }
+    },
+    "serve-static": {
+      "continuous": true,
+      "executor": "@nx/web:file-server",
+      "options": {
+        "buildTarget": "behandel:build",
+        "staticFilePath": "dist/apps/behandel/browser",
+        "spa": true
+      }
+    }
+  }
+}

apps/behandel/public/config.json

@@ -0,0 +1,3 @@
+{
+  "authority": "http://localhost:8180/realms/medewerker"
+}

apps/behandel/src/app/app.config.spec.ts

@@ -0,0 +1,73 @@
+import { provideHttpClient, withInterceptors } from '@angular/common/http';
+import { HttpTestingController, provideHttpClientTesting } from '@angular/common/http/testing';
+import { TestBed } from '@angular/core/testing';
+import { BffApiV1Service } from 'api-client';
+import { authInterceptor } from 'auth';
+import { AbstractSecurityStorage, ConfigurationService } from 'angular-auth-oidc-client';
+import { SECURE_API_ROUTES } from './app.config';
+
+// Guards the medewerker token wiring end-to-end. The api-client calls the BFF with RELATIVE URLs, and
+// the angular-auth-oidc-client interceptor attaches the token only when `req.url` starts with a
+// configured secureRoute. A regression to an absolute origin makes the relative URL never match, so
+// the behandel calls go out unauthenticated and the BFF answers 401. This drives the REAL interceptor
+// and the REAL api-client against the REAL production route value (SECURE_API_ROUTES); only the config
+// source and token storage are faked, so the assertion turns on the actual route-matching.
+describe('behandel medewerker token wiring', () => {
+  let http: HttpTestingController;
+  let bff: BffApiV1Service;
+  const token = 'medewerker-access-token';
+
+  beforeEach(() => {
+    TestBed.configureTestingModule({
+      providers: [
+        provideHttpClient(withInterceptors([authInterceptor()])),
+        provideHttpClientTesting(),
+        {
+          provide: ConfigurationService,
+          useValue: {
+            hasAtLeastOneConfig: () => true,
+            getAllConfigurations: () => [{ configId: 'medewerker', secureRoutes: SECURE_API_ROUTES }],
+          },
+        },
+        {
+          // A signed-in session: the storage the interceptor's token lookup reads from.
+          provide: AbstractSecurityStorage,
+          useValue: {
+            read: () => JSON.stringify({ authzData: token, authnResult: { id_token: 'id-token' } }),
+            write: () => undefined,
+            remove: () => undefined,
+            clear: () => undefined,
+          },
+        },
+      ],
+    });
+    http = TestBed.inject(HttpTestingController);
+    bff = TestBed.inject(BffApiV1Service);
+  });
+
+  afterEach(() => http.verify());
+
+  it('attaches the bearer token to the relative werkbak call', () => {
+    bff.getBehandelWerkbak().subscribe();
+
+    const req = http.expectOne('/behandel/werkbak');
+    expect(req.request.headers.get('Authorization')).toBe(`Bearer ${token}`);
+    req.flush([]);
+  });
+
+  it('attaches the bearer token to the relative decide call', () => {
+    bff.postBehandelRegistrationsIdDecide('reg-1', { besluit: 'goedkeuren' }).subscribe();
+
+    const req = http.expectOne('/behandel/registrations/reg-1/decide');
+    expect(req.request.headers.get('Authorization')).toBe(`Bearer ${token}`);
+    req.flush(null);
+  });
+
+  it('leaves the anonymous openbaar register call unauthenticated', () => {
+    bff.getOpenbaarRegister().subscribe();
+
+    const req = http.expectOne((r) => r.url === '/openbaar/register');
+    expect(req.request.headers.has('Authorization')).toBe(false);
+    req.flush([]);
+  });
+});

apps/behandel/src/app/app.config.ts

@@ -0,0 +1,39 @@
+import { provideHttpClient, withInterceptors } from '@angular/common/http';
+import { ApplicationConfig, provideBrowserGlobalErrorListeners } from '@angular/core';
+import { provideRouter } from '@angular/router';
+import { authInterceptor, provideMedewerkerAuth } from 'auth';
+import { appRoutes } from './app.routes';
+
+/** Environment-specific settings fetched from /config.json at startup (see main.ts). */
+export interface RuntimeConfig {
+  /** The Keycloak `medewerker` realm issuer as the browser reaches it (dev: localhost; compose: keycloak:8080). */
+  authority: string;
+}
+
+/**
+ * Route prefixes whose requests carry the medewerker token. These MUST match the **relative** URLs
+ * the api-client actually calls (same-origin via the nginx proxy) — the interceptor matches on
+ * `req.url`, which stays relative, so an absolute origin would never match and the token would go
+ * unattached. Only `/behandel/` is secured; the app calls no other endpoint group.
+ */
+export const SECURE_API_ROUTES = ['/behandel/'];
+
+/**
+ * Build the app providers from runtime config. `redirectUrl` is the app's own origin (where Keycloak
+ * redirects back). `secureRoutes` uses {@link SECURE_API_ROUTES} — relative prefixes, not the origin.
+ */
+export function appConfig(runtime: RuntimeConfig): ApplicationConfig {
+  const origin = typeof window !== 'undefined' ? window.location.origin : '/';
+  return {
+    providers: [
+      provideBrowserGlobalErrorListeners(),
+      provideRouter(appRoutes),
+      provideHttpClient(withInterceptors([authInterceptor()])),
+      provideMedewerkerAuth({
+        authority: runtime.authority,
+        redirectUrl: origin,
+        secureRoutes: SECURE_API_ROUTES,
+      }),
+    ],
+  };
+}

apps/behandel/src/app/app.html

@@ -0,0 +1 @@
+<router-outlet></router-outlet>

apps/behandel/src/app/app.routes.ts

@@ -0,0 +1,7 @@
+import { Route } from '@angular/router';
+import { authenticatedGuard } from 'auth';
+import { WerkbakPage } from './werkbak/werkbak-page';
+
+export const appRoutes: Route[] = [
+  { path: '', component: WerkbakPage, canActivate: [authenticatedGuard] },
+];

apps/behandel/src/app/app.spec.ts

@@ -0,0 +1,15 @@
+import { provideRouter } from '@angular/router';
+import { render, screen } from '@testing-library/angular';
+import { App } from './app';
+
+describe('App', () => {
+  it('renders the router outlet shell', async () => {
+    const { container } = await render(App, {
+      providers: [provideRouter([])],
+    });
+
+    // The shell is a thin host for routed pages (the WerkbakPage owns the heading).
+    expect(container.querySelector('router-outlet')).toBeTruthy();
+    expect(screen).toBeTruthy();
+  });
+});

apps/behandel/src/app/app.ts

@@ -0,0 +1,12 @@
+import { Component } from '@angular/core';
+import { RouterModule } from '@angular/router';
+
+@Component({
+  imports: [RouterModule],
+  selector: 'app-root',
+  templateUrl: './app.html',
+  styleUrl: './app.css',
+})
+export class App {
+  protected title = 'behandel';
+}

apps/behandel/src/app/werkbak/werkbak-page.html

@@ -0,0 +1,64 @@
+<main utrecht-document class="utrecht-theme">
+  <utrecht-article>
+    <utrecht-heading-1>Werkbak</utrecht-heading-1>
+    <p utrecht-paragraph>
+      Registraties die wachten op beoordeling. Keur elke registratie goed of wijs deze af.
+    </p>
+
+    @if (loading()) {
+      <p utrecht-paragraph role="status">Bezig met laden…</p>
+    } @else if (failed()) {
+      <p utrecht-paragraph role="alert">
+        Kon de werkbak niet laden. Controleer of je als behandelaar bent ingelogd en probeer het
+        opnieuw.
+      </p>
+    } @else if (loaded() && items().length === 0) {
+      <p utrecht-paragraph role="status">De werkbak is leeg.</p>
+    } @else if (items().length > 0) {
+      <table utrecht-table>
+        <caption>
+          Registraties in behandeling
+        </caption>
+        <thead>
+          <tr>
+            <th scope="col">Referentie</th>
+            <th scope="col">BSN</th>
+            <th scope="col">Status</th>
+            <th scope="col">Actie</th>
+          </tr>
+        </thead>
+        <tbody>
+          @for (item of items(); track item.registrationId) {
+            <tr>
+              <td>{{ item.registrationId }}</td>
+              <td>{{ item.bsn }}</td>
+              <td>{{ item.status }}</td>
+              <td>
+                <button
+                  utrecht-button
+                  appearance="primary-action-button"
+                  type="button"
+                  [attr.aria-label]="'Goedkeuren ' + item.registrationId"
+                  [disabled]="deciding() === item.registrationId"
+                  (click)="decide(item.registrationId, 'goedkeuren')"
+                >
+                  Goedkeuren
+                </button>
+                <button
+                  utrecht-button
+                  appearance="secondary-action-button"
+                  type="button"
+                  [attr.aria-label]="'Afwijzen ' + item.registrationId"
+                  [disabled]="deciding() === item.registrationId"
+                  (click)="decide(item.registrationId, 'afwijzen')"
+                >
+                  Afwijzen
+                </button>
+              </td>
+            </tr>
+          }
+        </tbody>
+      </table>
+    }
+  </utrecht-article>
+</main>

apps/behandel/src/app/werkbak/werkbak-page.spec.ts

@@ -0,0 +1,110 @@
+import { signal } from '@angular/core';
+import { fireEvent, render, screen } from '@testing-library/angular';
+import { of, throwError } from 'rxjs';
+import { BffApiV1Service, type WerkbakItem } from 'api-client';
+import { AuthService } from 'auth';
+import { axe } from 'vitest-axe';
+import { WerkbakPage } from './werkbak-page';
+
+const sample: WerkbakItem[] = [
+  { registrationId: 'reg-1', bsn: '123456782', status: 'InBehandeling' },
+  { registrationId: 'reg-2', bsn: '111222333', status: 'InBehandeling' },
+];
+
+class FakeAuth extends AuthService {
+  readonly isAuthenticated = signal(true);
+  readonly bsn = signal<string | undefined>(undefined);
+  override readonly roles = signal<readonly string[]>(['behandelaar']);
+  login(): void {
+    /* not exercised here */
+  }
+  logout(): void {
+    /* spied in tests */
+  }
+}
+
+function setup(
+  overrides: {
+    getBehandelWerkbak?: ReturnType<typeof vi.fn>;
+    postBehandelRegistrationsIdDecide?: ReturnType<typeof vi.fn>;
+  } = {},
+) {
+  const getBehandelWerkbak =
+    overrides.getBehandelWerkbak ?? vi.fn().mockReturnValue(of(sample));
+  const postBehandelRegistrationsIdDecide =
+    overrides.postBehandelRegistrationsIdDecide ?? vi.fn().mockReturnValue(of(undefined));
+  return {
+    getBehandelWerkbak,
+    postBehandelRegistrationsIdDecide,
+    providers: [
+      {
+        provide: BffApiV1Service,
+        useValue: { getBehandelWerkbak, postBehandelRegistrationsIdDecide },
+      },
+      { provide: AuthService, useClass: FakeAuth },
+    ],
+  };
+}
+
+describe('WerkbakPage', () => {
+  it('lists the registrations awaiting beoordeling on open', async () => {
+    const { getBehandelWerkbak, providers } = setup();
+    await render(WerkbakPage, { providers });
+
+    expect(getBehandelWerkbak).toHaveBeenCalled();
+    expect(await screen.findByText('reg-1')).toBeTruthy();
+    expect(screen.getByText('123456782')).toBeTruthy();
+    expect(screen.getByText('reg-2')).toBeTruthy();
+  });
+
+  it('approves a registration (goedkeuren) and refreshes the werkbak', async () => {
+    const { getBehandelWerkbak, postBehandelRegistrationsIdDecide, providers } = setup();
+    await render(WerkbakPage, { providers });
+
+    fireEvent.click((await screen.findAllByRole('button', { name: /goedkeuren/i }))[0]);
+
+    expect(postBehandelRegistrationsIdDecide).toHaveBeenCalledWith('reg-1', {
+      besluit: 'goedkeuren',
+    });
+    // Reloaded after the decision: once on open, once after deciding.
+    expect(getBehandelWerkbak).toHaveBeenCalledTimes(2);
+  });
+
+  it('rejects a registration (afwijzen) via the decide endpoint', async () => {
+    const { postBehandelRegistrationsIdDecide, providers } = setup();
+    await render(WerkbakPage, { providers });
+
+    fireEvent.click((await screen.findAllByRole('button', { name: /afwijzen/i }))[0]);
+
+    expect(postBehandelRegistrationsIdDecide).toHaveBeenCalledWith('reg-1', {
+      besluit: 'afwijzen',
+    });
+  });
+
+  it('shows an empty state when the werkbak has no items', async () => {
+    const { providers } = setup({ getBehandelWerkbak: vi.fn().mockReturnValue(of([])) });
+    await render(WerkbakPage, { providers });
+
+    expect(await screen.findByText(/werkbak is leeg/i)).toBeTruthy();
+  });
+
+  it('surfaces a load failure instead of swallowing it', async () => {
+    const { providers } = setup({
+      getBehandelWerkbak: vi.fn().mockReturnValue(throwError(() => new Error('403'))),
+    });
+    await render(WerkbakPage, { providers });
+
+    expect(await screen.findByText(/kon de werkbak niet laden/i)).toBeTruthy();
+  });
+
+  it('has no WCAG 2.1 AA violations', async () => {
+    document.documentElement.lang = 'nl';
+    const { container } = await render(WerkbakPage, { providers: setup().providers });
+
+    const results = await axe(container, {
+      runOnly: { type: 'tag', values: ['wcag2a', 'wcag2aa', 'wcag21a', 'wcag21aa'] },
+    });
+
+    expect(results.violations).toEqual([]);
+  });
+});

apps/behandel/src/app/werkbak/werkbak-page.ts

@@ -0,0 +1,65 @@
+import { Component, inject, signal } from '@angular/core';
+import { BffApiV1Service, type WerkbakItem } from 'api-client';
+import { UtrechtComponentsModule } from 'ui';
+
+/** The two decisions a behandelaar can make; the BFF validates these exact values (ADR-0013). */
+type Besluit = 'goedkeuren' | 'afwijzen';
+
+/**
+ * The behandel werkbak: a signed-in behandelaar sees the registrations awaiting beoordeling (the open
+ * Flowable `Beoordelen` tasks, read through the domain) and decides each — goedkeuren or afwijzen. A
+ * decision posts to the BFF, which applies the domain transition and completes the workflow task
+ * (ADR-0013; S-12). After a decision the werkbak refreshes so the handled item drops off the list.
+ */
+@Component({
+  selector: 'app-werkbak-page',
+  imports: [UtrechtComponentsModule],
+  templateUrl: './werkbak-page.html',
+})
+export class WerkbakPage {
+  private readonly bff = inject(BffApiV1Service);
+
+  protected readonly items = signal<WerkbakItem[]>([]);
+  protected readonly loading = signal(false);
+  protected readonly loaded = signal(false);
+  protected readonly failed = signal(false);
+  protected readonly deciding = signal<string | undefined>(undefined);
+
+  constructor() {
+    this.load();
+  }
+
+  load(): void {
+    this.loading.set(true);
+    this.failed.set(false);
+    this.bff.getBehandelWerkbak().subscribe({
+      next: (rows: WerkbakItem[]) => {
+        this.items.set(rows);
+        this.loading.set(false);
+        this.loaded.set(true);
+      },
+      // Surface the failure (e.g. 403 for a non-behandelaar) instead of swallowing it.
+      error: () => {
+        this.items.set([]);
+        this.loading.set(false);
+        this.loaded.set(true);
+        this.failed.set(true);
+      },
+    });
+  }
+
+  decide(registrationId: string, besluit: Besluit): void {
+    this.deciding.set(registrationId);
+    this.bff.postBehandelRegistrationsIdDecide(registrationId, { besluit }).subscribe({
+      // Refresh so the decided registration drops off the werkbak (its task is now completed).
+      next: () => {
+        this.deciding.set(undefined);
+        this.load();
+      },
+      error: () => {
+        this.deciding.set(undefined);
+        this.failed.set(true);
+      },
+    });
+  }
+}

apps/behandel/src/index.html

@@ -0,0 +1,13 @@
+<!doctype html>
+<html lang="nl">
+  <head>
+    <meta charset="utf-8" />
+    <title>Behandelportaal BIG-register</title>
+    <base href="/" />
+    <meta name="viewport" content="width=device-width, initial-scale=1" />
+    <link rel="icon" type="image/x-icon" href="favicon.ico" />
+  </head>
+  <body>
+    <app-root></app-root>
+  </body>
+</html>

apps/behandel/src/main.ts

@@ -0,0 +1,10 @@
+import { bootstrapApplication } from '@angular/platform-browser';
+import { App } from './app/app';
+import { appConfig, type RuntimeConfig } from './app/app.config';
+
+// Load environment config before bootstrap so the OIDC authority is set per environment
+// (dev: localhost; compose: keycloak:8080) from a single build — 12-factor (S-08d).
+fetch('config.json')
+  .then((response) => response.json() as Promise<RuntimeConfig>)
+  .then((config) => bootstrapApplication(App, appConfig(config)))
+  .catch((err) => console.error(err));

apps/behandel/src/styles.css

@@ -0,0 +1,2 @@
+/* NL Design System theme — Utrecht design tokens (docs/frontend-decisions.md). */
+@import '@utrecht/design-tokens/dist/index.css';

apps/behandel/tsconfig.app.json

@@ -0,0 +1,9 @@
+{
+  "extends": "./tsconfig.json",
+  "compilerOptions": {
+    "outDir": "../../dist/out-tsc",
+    "types": []
+  },
+  "include": ["src/**/*.ts"],
+  "exclude": ["src/**/*.spec.ts", "src/**/*.test.ts"]
+}

apps/behandel/tsconfig.json

@@ -0,0 +1,31 @@
+{
+  "extends": "../../tsconfig.base.json",
+  "compilerOptions": {
+    "strict": true,
+    "noImplicitOverride": true,
+    "noPropertyAccessFromIndexSignature": true,
+    "noImplicitReturns": true,
+    "noFallthroughCasesInSwitch": true,
+    "isolatedModules": true,
+    "target": "es2022",
+    "moduleResolution": "bundler",
+    "emitDecoratorMetadata": false,
+    "module": "preserve"
+  },
+  "angularCompilerOptions": {
+    "enableI18nLegacyMessageIdFormat": false,
+    "strictInjectionParameters": true,
+    "strictInputAccessModifiers": true,
+    "strictTemplates": true
+  },
+  "files": [],
+  "include": [],
+  "references": [
+    {
+      "path": "./tsconfig.app.json"
+    },
+    {
+      "path": "./tsconfig.spec.json"
+    }
+  ]
+}

apps/behandel/tsconfig.spec.json

@@ -0,0 +1,8 @@
+{
+  "extends": "./tsconfig.json",
+  "compilerOptions": {
+    "outDir": "../../dist/out-tsc",
+    "types": ["vitest/globals"]
+  },
+  "include": ["src/**/*.ts", "src/**/*.d.ts"]
+}

docs/demo-script.md

@@ -248,3 +248,30 @@ curl -fsS "http://localhost:8140/openbaar/register?q=$ref" | jq
 
 > The openbaar register's "Referentie" column and its search now use this reference — the exact value
 > the citizen saw on submit. Asserted end-to-end by the Playwright happy path.
+
+## S-12 — Behandel portal: werkbak + beoordeling (#13, ADR-0013)
+
+A behandelaar now works submitted registrations in a real portal instead of the temporary admin
+endpoint. After a citizen submits (as above), the workflow parks the registration at the Flowable
+`Beoordelen` user task, and it shows up in the **werkbak**. The behandelaar logs in against the
+Keycloak `medewerker` realm and decides — **goedkeuren** (→ INGESCHREVEN via the ACL, per ADR-0011)
+or **afwijzen** — which also completes the Beoordelen task so the process advances.
+
+```text
+# 1. Open the behandel portal and log in as a behandelaar (medewerker realm):
+#    http://localhost:8142/   →  merel-behandelaar / test123
+#
+# 2. The werkbak lists the registrations awaiting beoordeling (referentie / bsn / status).
+#    Find the reference from the submit confirmation and click "Goedkeuren" on that row.
+#
+# 3. The row drops off the werkbak (its Beoordelen task is completed) and the openbaar register
+#    (http://localhost:8141/) now shows that reference as INGESCHREVEN.
+```
+
+**The path:** behandel portal → BFF `POST /behandel/registrations/{id}/decide` (behandelaar policy,
+`medewerker` realm) → domain applies the decision + completes the Flowable `Beoordelen` task →
+ACL → NRC → event-subscriber → projection → openbaar register shows INGESCHREVEN.
+
+> The full round-trip — DigiD submit → public INGEDIEND → behandelaar goedkeurt in the werkbak →
+> public INGESCHREVEN — is the Playwright happy path (`tests/e2e/registration.spec.ts`), which now
+> drives the behandel portal in place of the old admin endpoint.

docs/frontend-decisions.md

@@ -117,3 +117,37 @@ with the submit form (S-08c, #67); any deviation from NL DS will be recorded her
   (id + status); `bsn`/`naam` never leave the BFF. The e2e asserts the bsn never renders.
 - **Loads on open, filters on search.** `RegisterPage` fetches the full register on construction and
   re-queries `/openbaar/register?q=` on search — no client-side filtering, the BFF owns the query.
+
+## Behandel portal (S-12, #13)
+
+The staff portal where a behandelaar works the **werkbak** (registrations awaiting beoordeling) and
+decides each — goedkeuren or afwijzen. `apps/behandel` mirrors `apps/self-service`; the net-new
+frontend work is the medewerker realm auth and the werkbak/decide page. Wiring rationale is in
+**ADR-0013**; this entry records the frontend-specific choices.
+
+- **Medewerker realm auth, reusing `libs/auth`.** Staff authenticate against the Keycloak
+  `medewerker` realm (public client `big-portal`), not `digid`. Rather than fork the auth lib, the
+  abstract `AuthService` grew a **`roles`/`hasRole` surface** (empty for realms without roles, e.g.
+  `digid`), and a parallel **`MedewerkerAuthService` + `provideMedewerkerAuth`** were added — same
+  auth-code + PKCE config, bound to the medewerker realm, reading the nested `realm_access.roles`
+  claim. The library's own `authInterceptor` attaches the token to the relative `/behandel/` calls
+  (secure route), exactly as self-service does for `/self-service/`.
+- **Roles reach the frontend via a realm mapper.** Keycloak emits realm roles in the access token by
+  default but not the ID token/userinfo the SPA reads, so the medewerker `big-portal` client gets a
+  **realm-roles protocol mapper** (`realm_access.roles`, added to id + userinfo tokens). The
+  **BFF remains the security boundary** (`behandelaar` policy, 401/403 on `/behandel/*`, ADR-0013);
+  the frontend role signal is for display/UX, and the werkbak page surfaces a load failure (e.g. a
+  403 for a non-behandelaar) rather than swallowing it.
+- **Same-origin via nginx, like the other portals.** The compose `behandel` image serves the built
+  app and reverse-proxies `/behandel` to the BFF (relative calls, no CORS). Served on `:8142`,
+  health-checked over IPv4 (`127.0.0.1`), depends on Keycloak for the medewerker realm.
+- **Werkbak = decide-and-refresh.** `WerkbakPage` loads `GET /behandel/werkbak` on open and renders a
+  row per registration (referentie/bsn/status). Goedkeuren/afwijzen `POST /behandel/registrations/
+  {id}/decide` and then reload the werkbak, so the handled item drops off (its Flowable `Beoordelen`
+  task is completed). Per-row decide buttons carry an `aria-label` including the reference, so the
+  e2e (and screen readers) can target a specific registration in a shared werkbak.
+- **Testing.** Component tests use `@testing-library/angular` with `BffApiV1Service`/`AuthService`
+  mocked and the axe WCAG 2.1 AA check; an `app.config.spec` drives the real interceptor + api-client
+  to assert the medewerker token attaches to `/behandel/*` (and not to the anonymous openbaar call).
+  The full DigiD-submit → behandel-decide → public INGESCHREVEN round-trip is the Playwright happy
+  path.

infra/docker-compose.yml

@@ -486,6 +486,29 @@ services:
         condition: service_healthy
     networks: [cg]
 
+  # The behandel portal: nginx serves the Angular app and reverse-proxies /behandel to the BFF.
+  # Behandelaars log in against the Keycloak medewerker realm (ADR-0013; S-12).
+  behandel:
+    build:
+      context: ..
+      dockerfile: apps/behandel/Dockerfile
+    image: register-referentie/behandel:dev
+    ports:
+      - "8142:80"
+    healthcheck:
+      # 127.0.0.1, not localhost: nginx listens on IPv4 only, but localhost resolves to ::1 first.
+      test: ["CMD-SHELL", "wget -q -O /dev/null http://127.0.0.1/ || exit 1"]
+      interval: 5s
+      timeout: 3s
+      retries: 5
+      start_period: 10s
+    depends_on:
+      bff:
+        condition: service_healthy
+      keycloak:
+        condition: service_started
+    networks: [cg]
+
 volumes:
   oz-db:
   nrc-db:

infra/keycloak/realms/medewerker-realm.json

@@ -16,7 +16,22 @@
       "standardFlowEnabled": true,
       "directAccessGrantsEnabled": true,
       "redirectUris": ["*"],
-      "webOrigins": ["*"]
+      "webOrigins": ["*"],
+      "protocolMappers": [
+        {
+          "name": "realm roles",
+          "protocol": "openid-connect",
+          "protocolMapper": "oidc-usermodel-realm-role-mapper",
+          "config": {
+            "multivalued": "true",
+            "claim.name": "realm_access.roles",
+            "jsonType.label": "String",
+            "id.token.claim": "true",
+            "access.token.claim": "true",
+            "userinfo.token.claim": "true"
+          }
+        }
+      ]
     }
   ],
   "users": [

libs/auth/src/index.ts

@@ -1,4 +1,6 @@
 export * from './lib/auth.service';
 export * from './lib/digid-auth.service';
 export * from './lib/digid-auth.providers';
+export * from './lib/medewerker-auth.service';
+export * from './lib/medewerker-auth.providers';
 export * from './lib/authenticated.guard';

libs/auth/src/lib/auth.service.ts

@@ -1,16 +1,26 @@
-import { Signal } from '@angular/core';
+import { signal, Signal } from '@angular/core';
 
 /**
  * The portal's view of the signed-in user. An abstraction over the OIDC library so components and
- * guards depend on a small, mockable surface (the real implementation is DigiadAuthService).
+ * guards depend on a small, mockable surface (the real implementations are DigiadAuthService for
+ * citizens and MedewerkerAuthService for staff).
  */
 export abstract class AuthService {
-  /** Whether a DigiD session is active. */
+  /** Whether a session is active. */
   abstract readonly isAuthenticated: Signal<boolean>;
-  /** The citizen-service number from the DigiD token, once authenticated. */
+  /** The citizen-service number from the DigiD token, once authenticated (staff have none). */
   abstract readonly bsn: Signal<string | undefined>;
-  /** Start the DigiD login (redirects to Keycloak). */
+  /**
+   * The realm roles carried in the token. Empty for realms that don't grant roles (e.g. `digid`);
+   * the `medewerker` realm carries `behandelaar`/`teamlead`.
+   */
+  readonly roles: Signal<readonly string[]> = signal<readonly string[]>([]);
+  /** Start login (redirects to Keycloak). */
   abstract login(): void;
   /** End the session. */
   abstract logout(): void;
+  /** Whether the signed-in user holds the given realm role. */
+  hasRole(role: string): boolean {
+    return this.roles().includes(role);
+  }
 }

libs/auth/src/lib/medewerker-auth.providers.ts

@@ -0,0 +1,49 @@
+import { EnvironmentProviders, makeEnvironmentProviders } from '@angular/core';
+import { LogLevel, provideAuth, withAppInitializerAuthCheck } from 'angular-auth-oidc-client';
+import { AuthService } from './auth.service';
+import { MedewerkerAuthService } from './medewerker-auth.service';
+
+export interface MedewerkerAuthOptions {
+  /** The Keycloak `medewerker` realm issuer, as reachable from the browser. */
+  authority: string;
+  /** Where Keycloak redirects back to after login (usually the app origin). */
+  redirectUrl: string;
+  /**
+   * Route prefixes whose requests get the bearer token attached. The api-client calls the BFF with
+   * **relative** URLs (same-origin via the nginx proxy), so these must be relative path prefixes
+   * (e.g. `/behandel/`) — angular-auth-oidc-client matches `req.url.startsWith(route)`, and a
+   * relative `req.url` never starts with an absolute origin.
+   */
+  secureRoutes: string[];
+}
+
+/**
+ * Configure medewerker login (Keycloak `medewerker` realm, public client `big-portal`, auth-code +
+ * PKCE) and bind {@link AuthService} to the medewerker-backed implementation. Register
+ * {@link authInterceptor} (re-exported from digid-auth.providers) in the app's HttpClient so BFF
+ * calls carry the token.
+ */
+export function provideMedewerkerAuth(options: MedewerkerAuthOptions): EnvironmentProviders {
+  return makeEnvironmentProviders([
+    provideAuth(
+      {
+        config: {
+          authority: options.authority,
+          redirectUrl: options.redirectUrl,
+          postLogoutRedirectUri: options.redirectUrl,
+          clientId: 'big-portal',
+          scope: 'openid profile',
+          responseType: 'code',
+          silentRenew: true,
+          useRefreshToken: true,
+          secureRoutes: options.secureRoutes,
+          logLevel: LogLevel.Warn,
+        },
+      },
+      // Run checkAuth() at startup so the login callback (?code=…) is processed before the router
+      // and guard run — without it the guard sees "not authenticated" and re-triggers login (loop).
+      withAppInitializerAuthCheck(),
+    ),
+    { provide: AuthService, useClass: MedewerkerAuthService },
+  ]);
+}

libs/auth/src/lib/medewerker-auth.service.spec.ts

@@ -0,0 +1,43 @@
+import { TestBed } from '@angular/core/testing';
+import { OidcSecurityService } from 'angular-auth-oidc-client';
+import { of } from 'rxjs';
+import { MedewerkerAuthService } from './medewerker-auth.service';
+
+function makeService(userData: unknown, authenticated = true) {
+  const oidc = {
+    isAuthenticated$: of({ isAuthenticated: authenticated }),
+    userData$: of({ userData }),
+    authorize: vi.fn(),
+    logoff: vi.fn(() => of(null)),
+  };
+  TestBed.configureTestingModule({
+    providers: [MedewerkerAuthService, { provide: OidcSecurityService, useValue: oidc }],
+  });
+  return { svc: TestBed.inject(MedewerkerAuthService), oidc };
+}
+
+describe('MedewerkerAuthService', () => {
+  it('exposes the realm roles carried in the token', () => {
+    const { svc } = makeService({ realm_access: { roles: ['behandelaar', 'teamlead'] } });
+    expect(svc.roles()).toEqual(['behandelaar', 'teamlead']);
+    expect(svc.hasRole('behandelaar')).toBe(true);
+    expect(svc.hasRole('beheerder')).toBe(false);
+  });
+
+  it('has no roles when the token omits realm_access', () => {
+    const { svc } = makeService({ preferred_username: 'merel-behandelaar' });
+    expect(svc.roles()).toEqual([]);
+    expect(svc.hasRole('behandelaar')).toBe(false);
+  });
+
+  it('reflects the OIDC authenticated state', () => {
+    const { svc } = makeService({}, true);
+    expect(svc.isAuthenticated()).toBe(true);
+  });
+
+  it('starts login by delegating to the OIDC library', () => {
+    const { svc, oidc } = makeService({});
+    svc.login();
+    expect(oidc.authorize).toHaveBeenCalledTimes(1);
+  });
+});

libs/auth/src/lib/medewerker-auth.service.ts

@@ -0,0 +1,41 @@
+import { inject, Injectable, Signal } from '@angular/core';
+import { toSignal } from '@angular/core/rxjs-interop';
+import { OidcSecurityService } from 'angular-auth-oidc-client';
+import { map } from 'rxjs';
+import { AuthService } from './auth.service';
+
+/** The subset of the medewerker token the portal reads: Keycloak nests realm roles here. */
+interface MedewerkerClaims {
+  realm_access?: { roles?: string[] };
+}
+
+/** Medewerker-backed AuthService over angular-auth-oidc-client (Keycloak `medewerker` realm). */
+@Injectable()
+export class MedewerkerAuthService extends AuthService {
+  private readonly oidc = inject(OidcSecurityService);
+
+  readonly isAuthenticated: Signal<boolean> = toSignal(
+    this.oidc.isAuthenticated$.pipe(map((result) => result.isAuthenticated)),
+    { initialValue: false },
+  );
+
+  // Staff have no BSN; the abstract surface keeps this present for the shared guard/interceptor.
+  readonly bsn: Signal<string | undefined> = toSignal(this.oidc.userData$.pipe(map(() => undefined)), {
+    initialValue: undefined,
+  });
+
+  override readonly roles: Signal<readonly string[]> = toSignal(
+    this.oidc.userData$.pipe(
+      map((data) => (data.userData as MedewerkerClaims | null)?.realm_access?.roles ?? []),
+    ),
+    { initialValue: [] },
+  );
+
+  override login(): void {
+    this.oidc.authorize();
+  }
+
+  override logout(): void {
+    this.oidc.logoff().subscribe();
+  }
+}

tests/e2e/playwright.config.ts

@@ -3,6 +3,9 @@ import { defineConfig, devices } from '@playwright/test';
 // The e2e runs inside the compose network (infra/run-e2e-check.sh); baseURL defaults to the
 // self-service service. Keep timeouts generous — the first navigation triggers the DigiD flow.
 const baseURL = process.env.SELF_SERVICE_URL ?? 'http://self-service';
+// The behandel portal is a second origin the happy path visits (staff approve from the werkbak);
+// it needs the same insecure-origin-as-secure treatment as self-service for the PKCE login (below).
+const behandelURL = process.env.BEHANDEL_URL ?? 'http://behandel';
 
 export default defineConfig({
   testDir: '.',
@@ -22,7 +25,9 @@ export default defineConfig({
     // the production HTTPS context. This flag is only honoured by the full Chromium build (new
     // headless), not Playwright's default headless-shell, so pin `channel: 'chromium'`.
     channel: 'chromium',
-    launchOptions: { args: [`--unsafely-treat-insecure-origin-as-secure=${baseURL}`] },
+    launchOptions: {
+      args: [`--unsafely-treat-insecure-origin-as-secure=${baseURL},${behandelURL}`],
+    },
   },
   projects: [{ name: 'chromium', use: { ...devices['Desktop Chrome'] } }],
 });

tests/e2e/registration.spec.ts

@@ -1,10 +1,11 @@
 import { expect, test } from '@playwright/test';
 
-// Walking-skeleton happy path (S-08d + S-09 + S-09b): a zorgprofessional logs in via mock DigiD and
+// Walking-skeleton happy path (S-08d + S-09 + S-09b + S-12): a zorgprofessional logs in via mock
-// submits through the self-service portal → BFF → domain; the entry appears in the openbaar register
+// DigiD and submits through the self-service portal → BFF → domain; the entry appears in the openbaar
-// as INGEDIEND; a behandelaar approves it via the temporary admin endpoint; the approval flows via the
+// register as INGEDIEND; a behandelaar then logs in to the behandel portal, finds the registration in
-// ACL → NRC → event-subscriber → projection, and the openbaar register then shows it as INGESCHREVEN.
+// the werkbak, and approves it (goedkeuren); the decision completes the Flowable Beoordelen task and
-test('DigiD login → submit → public INGEDIEND → approve → public INGESCHREVEN', async ({ page, request }) => {
+// flows via the ACL → NRC → event-subscriber → projection, and the openbaar register shows INGESCHREVEN.
+test('DigiD submit → public INGEDIEND → behandelaar goedkeurt → public INGESCHREVEN', async ({ page }) => {
   // Visiting the guarded page redirects to the Keycloak (mock DigiD) login.
   await page.goto('/');
 
@@ -43,21 +44,42 @@ test('DigiD login → submit → public INGEDIEND → approve → public INGESCH
   await expect(page.getByRole('row', { name: reference }).getByRole('cell', { name: 'INGEDIEND' }))
     .toBeVisible();
 
-  // Approve via the temporary admin endpoint (reached directly on the compose network, as a
+  // A behandelaar picks the registration up in the behandel-portal werkbak and approves it
-  // behandelaar would until the behandel-portal exists — S-12). The zaak is opened off the request
+  // (goedkeuren) — the S-12 flow that replaces the temporary admin endpoint. Navigating here switches
-  // path by the worker, so wait for it before approving.
+  // to the medewerker realm (a different Keycloak realm than the citizen's digid session).
+  await page.goto('http://behandel/');
+  await page.locator('#username').fill('merel-behandelaar');
+  await page.locator('#password').fill('test123');
+  await page.locator('#kc-login').click();
+
+  await expect(page.getByRole('heading', { name: /Werkbak/i })).toBeVisible();
+
+  // The registration parks at the Beoordelen user task only after the worker has opened its zaak, so
+  // it appears in the werkbak asynchronously — reload until this reference's row shows up. Target the
+  // decide button by reference (not a generic "Goedkeuren"): the shared verify stack holds other open
+  // tasks, so a positional match could act on someone else's registration.
+  const goedkeuren = page.getByRole('button', { name: `Goedkeuren ${reference}` });
   await expect
     .poll(async () => {
-      const res = await request.get(`http://domain:8080/registrations/${reference}`);
+      await page.reload();
-      return res.ok() ? (await res.json()).zaakUrl : null;
+      return goedkeuren.count();
     }, { timeout: 30_000, intervals: [1_000, 2_000, 3_000, 5_000] })
-    .toBeTruthy();
+    .toBeGreaterThan(0);
 
-  const approve = await request.post(`http://domain:8080/registrations/${reference}/approve`);
+  // Click and wait for the decide POST to finish (204) BEFORE leaving the page. `click()` only
-  expect(approve.status()).toBe(204);
+  // dispatches the request; navigating away immediately cancels it in flight (nginx logs a 499) and
+  // the decision never reaches the domain — so the registration would stay INGEDIEND.
+  const decided = page.waitForResponse(
+    (r) =>
+      r.url().includes(`/behandel/registrations/${reference}/decide`) &&
+      r.request().method() === 'POST',
+  );
+  await goedkeuren.click();
+  expect((await decided).status()).toBe(204);
 
-  // The approval flows back to the projection; the openbaar register now shows *our* row (matched by
+  // The approval flows back to the projection; back on the openbaar register *our* row (matched by
-  // its reference) as INGESCHREVEN.
+  // its reference) now shows INGESCHREVEN.
+  await page.goto('http://openbaar/');
   await expect
     .poll(async () => {
       await page.reload();