Redesign portfolio around systems case studies

src/app/features/landing/landing-page.component.spec.ts

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+import { TestBed } from '@angular/core/testing';
+import { provideRouter } from '@angular/router';
+import { LandingPageComponent } from './landing-page.component';
+
+describe('LandingPageComponent', () => {
+  it('leads with the approved positioning and four case studies', async () => {
+    await TestBed.configureTestingModule({
+      imports: [LandingPageComponent],
+      providers: [provideRouter([])]
+    }).compileComponents();
+
+    const fixture = TestBed.createComponent(LandingPageComponent);
+    fixture.detectChanges();
+    const page = fixture.nativeElement as HTMLElement;
+
+    expect(page.querySelector('h1')?.textContent).toContain(
+      'I modernize complex software and connect it safely to AI.'
+    );
+    expect(page.querySelectorAll('[data-testid="project-row"]').length).toBe(4);
+    expect(page.textContent).toContain('Secure AI Integration Gateway');
+    expect(page.textContent).toContain('Travel Operations & Automation Platform');
+    expect(page.textContent).toContain('Multitenant Service Operations Platform');
+    expect(page.textContent).toContain('Biodiversity Data & Field Research Platform');
+  });
+
+  it('offers direct contact, CV, LinkedIn, and the complete role history', async () => {
+    await TestBed.configureTestingModule({
+      imports: [LandingPageComponent],
+      providers: [provideRouter([])]
+    }).compileComponents();
+
+    const fixture = TestBed.createComponent(LandingPageComponent);
+    fixture.detectChanges();
+    const page = fixture.nativeElement as HTMLElement;
+
+    expect(page.querySelector('a[href="mailto:amar@dzanan.net"]')).toBeTruthy();
+    expect(page.querySelector('a[href="/cv"]')).toBeTruthy();
+    expect(page.querySelector('a[href="https://www.linkedin.com/in/amardzanan/"]')).toBeTruthy();
+    expect(page.textContent).toContain('Senior Software Engineer');
+    expect(page.textContent).toContain('Product Owner');
+    expect(page.textContent).toContain('Software Developer');
+    expect(page.textContent).toContain('Junior Software Developer');
+  });
+});