polish(driver-pwa): error states, typed catch, drop dead avatar, terminal poll

Co-Authored-By: claude-flow <ruv@ruv.net>

driver-pwa/frontend/src/components/AppHeader.tsx

@@ -1,12 +1,7 @@
-export function AppHeader({ initials }: { initials?: string }) {
+export function AppHeader() {
   return (
-    <header className="flex items-center justify-between mb-4">
+    <header className="mb-4">
       <span className="text-sm font-bold">Премиум Водитель</span>
-      {initials && (
-        <span className="w-7 h-7 rounded-full bg-ink text-cream text-[10px] font-bold flex items-center justify-center">
-          {initials}
-        </span>
-      )}
     </header>
   );
 }