fix(dashboard): keep mobile nav visible on Android landscape and during keyboard

- Broaden mobile media query to include (max-height: 480px) so landscape
  phones (which exceed 768 CSS px wide) still render the bottom nav and
  mobile board layout instead of desktop horizontally-scrollable columns.
- Guard useMobileKeyboard against pinch-zoom (vv.scale > 1) — Android
  Chrome ignores user-scalable=no, and a focused textarea + zoom was
  false-positiving keyboard-open and hiding MobileNavBar.
- Read documentElement.clientHeight instead of stale window.innerHeight
  when computing keyboard overlap (Android multi-window can leave
  innerHeight cached at a wildly different value than the actual layout
  viewport — observed 2848 while html was 797).
- Add interactive-widget=resizes-content to the viewport meta so Android
  Chrome shrinks the layout viewport with the soft keyboard, matching iOS.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

packages/dashboard/app/components/ExecutorStatusBar.css

@@ -179,7 +179,7 @@
 
 /* Mobile keeps a tappable 40-ish px target. Desktop collapses to the icon
    so it aligns on the same baseline as the surrounding status-bar text. */
-@media (pointer: coarse), (max-width: 768px) {
+@media (pointer: coarse), (max-width: 768px), (max-height: 480px) {
   .executor-status-bar__folder-toggle {
     min-width: var(--executor-status-touch-size);
     min-height: var(--executor-status-touch-size);
@@ -274,7 +274,7 @@
 }
 
 /* Responsive: collapse on small screens */
-@media (max-width: 768px) {
+@media (max-width: 768px), (max-height: 480px) {
   .executor-status-bar__fanout-summary {
     max-width: 14ch;
   }