chore: initial trade-visualizer import

src/layout/AuthStatus.tsx

@@ -0,0 +1,20 @@
+import Button from '../ui/Button';
+
+type Props = {
+  user: string;
+  onLogout: () => void;
+};
+
+export default function AuthStatus({ user, onLogout }: Props) {
+  return (
+    <div className="authStatus">
+      <div className="authStatus__user" aria-label="Zalogowany użytkownik">
+        <div className="authStatus__userLabel">Zalogowany</div>
+        <div className="authStatus__userName">{user}</div>
+      </div>
+      <Button size="sm" variant="ghost" type="button" onClick={onLogout}>
+        Wyloguj
+      </Button>
+    </div>
+  );
+}