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>

apps/behandelportal/src/app/behandeling/domain/werkvoorraad-item-view.spec.ts

@@ -0,0 +1,48 @@
+import { describe, it, expect } from 'vitest';
+import { werkvoorraadRow, statusLabel, TYPE_LABELS } from './werkvoorraad-item-view';
+import { WerkvoorraadItem } from './werkvoorraad-item';
+
+const base: Omit<WerkvoorraadItem, 'status'> = {
+  id: '1',
+  type: 'herregistratie',
+  owner: '111222333',
+  submittedAt: '2024-05-12',
+};
+
+describe('werkvoorraadRow', () => {
+  it('heading is the type, subtitle carries the owner BSN', () => {
+    const row = werkvoorraadRow({
+      ...base,
+      status: { tag: 'InBehandeling', referentie: 'R1', manual: false },
+    });
+    expect(row.heading).toBe(TYPE_LABELS.herregistratie);
+    expect(row.subtitle).toContain('111222333');
+  });
+
+  it('status line carries the status label, reference and submit date', () => {
+    const row = werkvoorraadRow({
+      ...base,
+      status: { tag: 'InBehandeling', referentie: 'R1', manual: false },
+    });
+    expect(row.status).toContain(
+      statusLabel({ tag: 'InBehandeling', referentie: 'R1', manual: false }),
+    );
+    expect(row.status).toContain('R1');
+    expect(row.status).toContain('12 mei 2024');
+  });
+
+  it('manual review is called out distinctly from an automatic InBehandeling', () => {
+    const manual = statusLabel({ tag: 'InBehandeling', referentie: 'R1', manual: true });
+    const auto = statusLabel({ tag: 'InBehandeling', referentie: 'R1', manual: false });
+    expect(manual).not.toBe(auto);
+  });
+
+  it('a missing submit date leaves no dangling separator', () => {
+    const row = werkvoorraadRow({
+      ...base,
+      submittedAt: undefined,
+      status: { tag: 'Ingediend', referentie: 'R9' },
+    });
+    expect(row.status).toBe(`${statusLabel({ tag: 'Ingediend', referentie: 'R9' })} · R9`);
+  });
+});