feat(portal-frontend): implement case-detail read view

Resolves legacy/:id vs owned/:id off the matched route's static path
segment and fetches accordingly. Renders applicant, diploma, and
assessment fields, a seams panel (which backend serves each section),
and embeds app-case-actions. Read-only - write forms land next.

portal-frontend/src/app/case-detail/case-detail/case-detail.html

@@ -1 +1,71 @@
-<p>case-detail works!</p>
+@if (detail(); as d) {
+  <h2>{{ d.surname }}, {{ d.initials }} ({{ d.origin }})</h2>
+
+  <section>
+    <h3>Aanvrager</h3>
+    <dl>
+      <dt>BSN</dt>
+      <dd>{{ d.bsn }}</dd>
+      <dt>E-mail</dt>
+      <dd>{{ d.email ?? 'n.v.t.' }}</dd>
+      <dt>Telefoon</dt>
+      <dd>{{ d.phone ?? 'n.v.t.' }}</dd>
+      <dt>Voorkeurskanaal</dt>
+      <dd>{{ d.preferredChannel }}</dd>
+      @if (d.address; as address) {
+        <dt>Adres</dt>
+        <dd>{{ address.street }} {{ address.number }}, {{ address.postalCode }} {{ address.city }}</dd>
+      }
+    </dl>
+  </section>
+
+  <section>
+    <h3>Diploma</h3>
+    <dl>
+      <dt>Code</dt>
+      <dd>{{ d.diplomaCode }}</dd>
+      <dt>Land van uitgifte</dt>
+      <dd>{{ d.diplomaCountryOfIssue }}</dd>
+      <dt>Uitgegeven op</dt>
+      <dd>{{ d.diplomaIssuedOn }}</dd>
+      <dt>Ontvangen op</dt>
+      <dd>{{ d.receivedOn }}</dd>
+      <dt>Processtatus</dt>
+      <dd>{{ d.processStatus ?? 'n.v.t.' }}</dd>
+    </dl>
+  </section>
+
+  @if (d.assessment; as assessment) {
+    <section>
+      <h3>Beoordeling</h3>
+      <dl>
+        <dt>Uitkomst</dt>
+        <dd>{{ assessment.outcome }}</dd>
+        <dt>Motivatie</dt>
+        <dd>{{ assessment.motivation }}</dd>
+        <dt>Gecontroleerde stukken</dt>
+        <dd>{{ assessment.verifiedItems.join(', ') || 'geen' }}</dd>
+        <dt>Beslist op</dt>
+        <dd>{{ assessment.decidedOn }}</dd>
+      </dl>
+    </section>
+  }
+
+  <section>
+    <h3>Seams</h3>
+    <p class="seam-note">Toont welk backend elk onderdeel van deze pagina levert.</p>
+    <dl>
+      @for (seam of d.seams | keyvalue; track seam.key) {
+        <dt>{{ seam.key }}</dt>
+        <dd>{{ seam.value ?? 'n.v.t.' }}</dd>
+      }
+    </dl>
+  </section>
+
+  <section>
+    <h3>Acties</h3>
+    <app-case-actions [actions]="d.actions" />
+  </section>
+} @else {
+  <p>Laden...</p>
+}

portal-frontend/src/app/case-detail/case-detail/case-detail.spec.ts

@@ -1,22 +1,79 @@
 import { ComponentFixture, TestBed } from '@angular/core/testing';
+import { ActivatedRoute, convertToParamMap } from '@angular/router';
+import { of } from 'rxjs';
+import { beforeEach, describe, expect, it, vi } from 'vitest';
 
+import { CaseDetailService } from '../case-detail.service';
+import { CaseDetail } from '../case-detail.types';
 import { CaseDetailPage } from './case-detail';
 
+const legacyDetail: CaseDetail = {
+  origin: 'Legacy',
+  legacyAanvraagId: 1001,
+  registrationApplicationId: null,
+  surname: 'de Vries',
+  initials: 'A.',
+  bsn: '123456782',
+  address: { street: 'Kerkweg', number: '12', postalCode: '3512JK', city: 'Utrecht' },
+  email: 'anna@example.nl',
+  phone: null,
+  preferredChannel: 'Post',
+  diplomaCode: 'X',
+  diplomaCountryOfIssue: 'NL',
+  diplomaIssuedOn: '2020-01-01',
+  receivedOn: '2026-01-01',
+  assessment: null,
+  processStatus: null,
+  lastModifiedAt: null,
+  actions: {
+    editApplicantDetails: { mode: 'writeThrough', href: '/api/worklist/legacy/1001/details' },
+    recordAssessment: { mode: 'redirect', href: '/legacy/aanvraag/1001/beoordeling' },
+    takeOwnership: { mode: 'transition', href: '/api/worklist/legacy/1001/take-ownership' },
+  },
+  seams: { aanvrager: 'legacy-backend', procestijdlijn: null },
+};
+
+function configure(routeConfigPath: string, paramMap: Record<string, string>, getLegacyDetail: unknown, getOwnedDetail: unknown) {
+  return TestBed.configureTestingModule({
+    imports: [CaseDetailPage],
+    providers: [
+      { provide: CaseDetailService, useValue: { getLegacyDetail, getOwnedDetail } },
+      {
+        provide: ActivatedRoute,
+        useValue: {
+          paramMap: of(convertToParamMap(paramMap)),
+          snapshot: { routeConfig: { path: routeConfigPath } },
+        },
+      },
+    ],
+  }).compileComponents();
+}
+
 describe('CaseDetailPage', () => {
-  let component: CaseDetailPage;
   let fixture: ComponentFixture<CaseDetailPage>;
 
-  beforeEach(async () => {
+  it('given a legacy/:id route, fetches via getLegacyDetail and renders the case', async () => {
-    await TestBed.configureTestingModule({
+    const getLegacyDetail = vi.fn().mockReturnValue(of(legacyDetail));
-      imports: [CaseDetailPage],
+    const getOwnedDetail = vi.fn();
-    }).compileComponents();
+    await configure('legacy/:id', { id: '1001' }, getLegacyDetail, getOwnedDetail);
 
     fixture = TestBed.createComponent(CaseDetailPage);
-    component = fixture.componentInstance;
+    fixture.detectChanges();
-    await fixture.whenStable();
+
+    expect(getLegacyDetail).toHaveBeenCalledWith('1001');
+    expect(getOwnedDetail).not.toHaveBeenCalled();
+    expect(fixture.nativeElement.textContent).toContain('de Vries');
   });
 
-  it('should create', () => {
+  it('given an owned/:id route, fetches via getOwnedDetail', async () => {
-    expect(component).toBeTruthy();
+    const getLegacyDetail = vi.fn();
+    const getOwnedDetail = vi.fn().mockReturnValue(of({ ...legacyDetail, origin: 'Owned', legacyAanvraagId: null, registrationApplicationId: 'abc' }));
+    await configure('owned/:id', { id: 'abc' }, getLegacyDetail, getOwnedDetail);
+
+    fixture = TestBed.createComponent(CaseDetailPage);
+    fixture.detectChanges();
+
+    expect(getOwnedDetail).toHaveBeenCalledWith('abc');
+    expect(getLegacyDetail).not.toHaveBeenCalled();
   });
 });

portal-frontend/src/app/case-detail/case-detail/case-detail.ts

@@ -1,9 +1,29 @@
-import { Component } from '@angular/core';
+import { KeyValuePipe } from '@angular/common';
+import { Component, inject, signal } from '@angular/core';
+import { ActivatedRoute } from '@angular/router';
+
+import { CaseActions } from '../case-actions/case-actions';
+import { CaseDetailService } from '../case-detail.service';
+import { CaseDetail } from '../case-detail.types';
 
 @Component({
   selector: 'app-case-detail',
-  imports: [],
+  imports: [CaseActions, KeyValuePipe],
   templateUrl: './case-detail.html',
   styleUrl: './case-detail.css',
 })
-export class CaseDetailPage {}
+export class CaseDetailPage {
+  private readonly route = inject(ActivatedRoute);
+  private readonly caseDetailService = inject(CaseDetailService);
+
+  readonly detail = signal<CaseDetail | null>(null);
+
+  constructor() {
+    this.route.paramMap.subscribe((params) => {
+      const id = params.get('id')!;
+      const isLegacy = this.route.snapshot.routeConfig?.path?.startsWith('legacy') ?? false;
+      const source$ = isLegacy ? this.caseDetailService.getLegacyDetail(id) : this.caseDetailService.getOwnedDetail(id);
+      source$.subscribe((detail) => this.detail.set(detail));
+    });
+  }
+}