fix(desktop): pin E2E sandboxes to Chromium zoom 0

Fresh installs now default to ~91%, but Playwright hit-testing and
visual baselines still assume 100%. Seed zoom-state.json so isolated
E2E profiles don't inherit the product default.

apps/desktop/e2e/fixtures.ts

@@ -120,6 +120,17 @@ export function createSandbox(prefix: string): Sandbox {
     'utf8',
   )
 
+  // Pin Chromium actual-size zoom (level 0) for the suite. Fresh installs
+  // ship DEFAULT_ZOOM_LEVEL ≈ -0.5 (~91%), but Playwright click hit-testing
+  // and the committed visual baselines were calibrated at 100%. Without this
+  // file every sandbox would inherit the product default and fail pointer
+  // interception + snapshot diffs.
+  fs.writeFileSync(
+    path.join(userDataDir, 'zoom-state.json'),
+    JSON.stringify({ zoomLevel: 0 }, null, 2),
+    'utf8',
+  )
+
   return {
     root,
     hermesHome,