fix(android): replace env() with JS-set CSS vars for safe areas

web/src/components/Layout.tsx

@@ -104,7 +104,7 @@ export function Layout() {
     <div className="h-full w-full bg-gb-bg text-gb-fg font-mono flex flex-col">
       {/* Outer terminal frame with safe area */}
       <div className="flex-1 terminal-border bg-gb-bg-h flex flex-col min-h-0"
-        style={{ padding: 'max(env(safe-area-inset-top), 1.5rem) max(env(safe-area-inset-right), 0) max(env(safe-area-inset-bottom), 0.75rem) max(env(safe-area-inset-left), 0)' }}>
+        style={{ padding: 'var(--safe-top, env(safe-area-inset-top, 1.5rem)) var(--safe-right, env(safe-area-inset-right, 0)) var(--safe-bottom, env(safe-area-inset-bottom, 0.75rem)) var(--safe-left, env(safe-area-inset-left, 0))' }}>
 
         {/* Top bar — minimal on mobile */}
         <div className="flex items-center justify-between px-2 md:px-3 py-1 border-b border-gb-bg-t bg-gb-bg-s gap-1">
@@ -237,7 +237,7 @@ function MobileBottomNav({
 
   return (
     <div className="md:hidden flex items-center bg-gb-bg-h border-t border-gb-bg-t shrink-0"
-      style={{ paddingBottom: 'env(safe-area-inset-bottom)' }}>
+      style={{ paddingBottom: 'var(--safe-bottom, env(safe-area-inset-bottom))' }}>
       <NavTab active={mobileView === 'sidebar'} onClick={() => onViewChange('sidebar')}>
         [SERVERS]
       </NavTab>