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/construct.js

@@ -0,0 +1,10 @@
+var isNativeReflectConstruct = require("./isNativeReflectConstruct.js");
+var setPrototypeOf = require("./setPrototypeOf.js");
+function _construct(t, e, r) {
+  if (isNativeReflectConstruct()) return Reflect.construct.apply(null, arguments);
+  var o = [null];
+  o.push.apply(o, e);
+  var p = new (t.bind.apply(t, o))();
+  return r && setPrototypeOf(p, r.prototype), p;
+}
+module.exports = _construct, module.exports.__esModule = true, module.exports["default"] = module.exports;