test(portal-frontend): add failing spec for case-actions mode-driven rendering

Red: case-actions has no template yet. Encodes the legacy-vs-owned
actions contract from CaseDetailResponseFactory - record-assessment
renders as a link only in redirect mode, take/release-ownership
buttons follow presence of their optional action key.

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

@@ -0,0 +1 @@
+<p>case-actions works!</p>

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

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+import { ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { CaseDetailActions } from '../case-detail.types';
+import { CaseActions } from './case-actions';
+
+describe('CaseActions', () => {
+  let fixture: ComponentFixture<CaseActions>;
+
+  function render(actions: CaseDetailActions): HTMLElement {
+    fixture = TestBed.createComponent(CaseActions);
+    fixture.componentRef.setInput('actions', actions);
+    fixture.detectChanges();
+    return fixture.nativeElement as HTMLElement;
+  }
+
+  beforeEach(async () => {
+    await TestBed.configureTestingModule({ imports: [CaseActions] }).compileComponents();
+  });
+
+  const legacyActions: CaseDetailActions = {
+    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' },
+  };
+
+  const ownedActions: CaseDetailActions = {
+    editApplicantDetails: { mode: 'owned', href: '/api/worklist/owned/00000000-0000-0000-0000-000000000002/details' },
+    recordAssessment: { mode: 'owned', href: '/api/worklist/owned/00000000-0000-0000-0000-000000000002/assessment' },
+    releaseOwnership: { mode: 'transition', href: '/api/worklist/owned/00000000-0000-0000-0000-000000000002/ownership' },
+  };
+
+  it('given a legacy-origin case, renders record-assessment as a link, shows take-ownership, hides release-ownership', () => {
+    const el = render(legacyActions);
+
+    const link = el.querySelector<HTMLAnchorElement>('[data-testid="record-assessment-link"]');
+    expect(link).toBeTruthy();
+    expect(link!.getAttribute('href')).toBe('/legacy/aanvraag/1001/beoordeling');
+    expect(el.querySelector('[data-testid="record-assessment-form"]')).toBeFalsy();
+    expect(el.querySelector('[data-testid="take-ownership-button"]')).toBeTruthy();
+    expect(el.querySelector('[data-testid="release-ownership-button"]')).toBeFalsy();
+  });
+
+  it('given an owned-origin case, renders record-assessment as a form trigger, shows release-ownership, hides take-ownership', () => {
+    const el = render(ownedActions);
+
+    expect(el.querySelector('[data-testid="record-assessment-form"]')).toBeTruthy();
+    expect(el.querySelector('[data-testid="record-assessment-link"]')).toBeFalsy();
+    expect(el.querySelector('[data-testid="release-ownership-button"]')).toBeTruthy();
+    expect(el.querySelector('[data-testid="take-ownership-button"]')).toBeFalsy();
+  });
+});

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

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+import { Component, input } from '@angular/core';
+
+import { CaseDetailActions } from '../case-detail.types';
+
+@Component({
+  selector: 'app-case-actions',
+  imports: [],
+  templateUrl: './case-actions.html',
+  styleUrl: './case-actions.css',
+})
+export class CaseActions {
+  readonly actions = input.required<CaseDetailActions>();
+}