feat: Passwordless cross-device authentication

- Arkitektur: docs/auth/passwordless-architecture.md
- Backend: iom/quixzoom-auth-service/ (FastAPI + Redis)
- Webb: quixzoom-market-pages/se/login/ (QR-kod + polling)
- App: iom/quixzoom-app/src/features/auth/ (push + deep links)

Flöde: QR-kod → app-godkännande → webb-inloggad

landvex/node_modules/simple-update-notifier/src/borderedText.ts

@@ -0,0 +1,12 @@
+const borderedText = (text: string) => {
+  const lines = text.split('\n');
+  const width = Math.max(...lines.map((l) => l.length));
+  const res = [`┌${'─'.repeat(width + 2)}┐`];
+  for (const line of lines) {
+    res.push(`│ ${line.padEnd(width)} │`);
+  }
+  res.push(`└${'─'.repeat(width + 2)}┘`);
+  return res.join('\n');
+};
+
+export default borderedText;