feat(14-01): desktop-skip three mobile-only layout assertions, add D-04 parity

- Added test.skip(testInfo.project.name === 'desktop') to the two safe-area-inset
  BottomTabBar in-viewport tests (BottomTabBar returns null at >=768px on desktop)
- Added test.skip(testInfo.project.name === 'desktop') to the 56x56 FAB geometry test
  (on desktop 'New Event' resolves to the toolbar button, not the 56px FAB)
- Added desktop-only D-04 parity test asserting 'New Event' toolbar button height >=44px
  guarded by test.skip(testInfo.project.name !== 'desktop')
- Updated header jsdoc to list all three profiles including desktop
- All mobile assertions preserved (toBeGreaterThanOrEqual(56) and (44) still present)

apps/pwa/e2e/layout.spec.ts

@@ -7,9 +7,10 @@
  *   Rule 3: Critical elements visible and in-viewport on initial load
  *   Rule 4: Accessible names on all interactive elements (role+name locators)
  *
- * Runs on both device profiles automatically (playwright.config.ts matrix):
+ * Runs on all three device profiles automatically (playwright.config.ts matrix):
  *   iphone:  iPhone 14 / WebKit / 390×844
  *   pixel:   Pixel 7 / Chromium / 412×915
+ *   desktop: Desktop Chrome / Chromium / 1280×720 (mobile-only geometry tests skipped)
  *
  * STRICT-MODE NOTE:
  *   On mobile viewports (≤767px), AppNav renders PhoneNav as a <header> element
@@ -59,7 +60,8 @@ test.describe('Rule 1/3/4 — BottomTabBar tap targets and in-viewport position'
     expect(box!.height, 'Lists tab height ≥ 44px').toBeGreaterThanOrEqual(44);
   });
 
-  test('BottomTabBar is fully in-viewport (Rule 3 — safe-area-inset)', async ({ page }) => {
+  test('BottomTabBar is fully in-viewport (Rule 3 — safe-area-inset)', async ({ page }, testInfo) => {
+    test.skip(testInfo.project.name === 'desktop', 'On desktop the Main navigation landmark resolves to the DesktopNav sidebar; the safe-area-inset bottom-edge assertion is semantically wrong for a sidebar (BottomTabBar returns null at ≥768px)');
     // The bar uses env(safe-area-inset-bottom, 0px). In emulation there is no
     // safe-area-inset, so the bar's bottom edge must be ≤ viewport height.
     const nav = page.getByRole('navigation', { name: 'Main navigation' });
@@ -88,7 +90,8 @@ test.describe('Rule 1/3/4 — BottomTabBar tap targets and in-viewport position'
     expect(box!.height, 'Settings button height ≥ 44px').toBeGreaterThanOrEqual(44);
   });
 
-  test('New Event FAB meets 56×56px touch-target minimum (Rule 1)', async ({ page }) => {
+  test('New Event FAB meets 56×56px touch-target minimum (Rule 1)', async ({ page }, testInfo) => {
+    test.skip(testInfo.project.name === 'desktop', 'On desktop getByRole(button, New Event) resolves to the toolbar button (CalendarShell.tsx:436-457), not the 56×56 FAB; FAB geometry assertion does not apply to the toolbar button');
     // Phone-only FAB — aria-label="New Event", fixed 56×56px (CalendarShell.tsx)
     const fab = page.getByRole('button', { name: 'New Event' });
     const box = await fab.boundingBox();
@@ -96,6 +99,17 @@ test.describe('Rule 1/3/4 — BottomTabBar tap targets and in-viewport position'
     expect(box!.width, 'New Event FAB width ≥ 56px').toBeGreaterThanOrEqual(56);
     expect(box!.height, 'New Event FAB height ≥ 56px').toBeGreaterThanOrEqual(56);
   });
+
+  // D-04 parity: desktop toolbar "New Event" button meets ≥44px minimum (Rule 1)
+  // CalendarShell.tsx:443 sets minHeight:'44px' on the desktop toolbar button.
+  // Guarded to run only on desktop — the FAB test above covers mobile profiles.
+  test('New Event toolbar button meets 44px touch-target minimum on desktop (Rule 1 — D-04 parity)', async ({ page }, testInfo) => {
+    test.skip(testInfo.project.name !== 'desktop', 'Desktop parity assertion — toolbar button only renders at ≥768px (Desktop Chrome); FAB test covers iphone/pixel');
+    const toolbarBtn = page.getByRole('button', { name: 'New Event' });
+    const box = await toolbarBtn.boundingBox();
+    expect(box, 'New Event toolbar button bounding box must not be null').not.toBeNull();
+    expect(box!.height, 'New Event toolbar button height ≥ 44px (Rule 1 desktop parity)').toBeGreaterThanOrEqual(44);
+  });
 });
 
 // ── Rule 1/3/4 repeated on /lists ──
@@ -127,7 +141,8 @@ test.describe('Rule 1/3/4 — BottomTabBar on /lists', () => {
     expect(box!.height).toBeGreaterThanOrEqual(44);
   });
 
-  test('BottomTabBar is fully in-viewport on /lists (Rule 3)', async ({ page }) => {
+  test('BottomTabBar is fully in-viewport on /lists (Rule 3)', async ({ page }, testInfo) => {
+    test.skip(testInfo.project.name === 'desktop', 'On desktop the Main navigation landmark resolves to the DesktopNav sidebar; the safe-area-inset bottom-edge assertion is semantically wrong for a sidebar (BottomTabBar returns null at ≥768px)');
     const nav = page.getByRole('navigation', { name: 'Main navigation' });
     await expect(nav).toBeVisible();
     const box = await nav.boundingBox();