fix(android): edge-to-edge alignment, keyboard handling, toolbar spacing

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), 0.25rem) max(env(safe-area-inset-right), 0) max(env(safe-area-inset-bottom), 0) max(env(safe-area-inset-left), 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)' }}>
 
         {/* 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">

web/src/components/MessageInput.tsx

@@ -598,7 +598,7 @@ export const MessageInput = forwardRef<HTMLTextAreaElement, MessageInputProps>(f
           )}
 
           {/* toolbar row */}
-          <div className="flex items-center gap-0.5 pt-0.5 border-t border-gb-bg-t">
+          <div className="flex items-center gap-x-1 md:gap-x-0.5 pt-0.5 border-t border-gb-bg-t">
             {/* + file upload */}
             <input
               ref={fileInputRef}