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/@babel/runtime/helpers/classApplyDescriptorSet.js

@@ -0,0 +1,7 @@
+function _classApplyDescriptorSet(e, t, l) {
+  if (t.set) t.set.call(e, l);else {
+    if (!t.writable) throw new TypeError("attempted to set read only private field");
+    t.value = l;
+  }
+}
+module.exports = _classApplyDescriptorSet, module.exports.__esModule = true, module.exports["default"] = module.exports;