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/validator/lib/util/multilineRegex.js

@@ -0,0 +1,20 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = multilineRegexp;
+/**
+ * Build RegExp object from an array
+ * of multiple/multi-line regexp parts
+ *
+ * @param {string[]} parts
+ * @param {string} flags
+ * @return {object} - RegExp object
+ */
+function multilineRegexp(parts, flags) {
+  var regexpAsStringLiteral = parts.join('');
+  return new RegExp(regexpAsStringLiteral, flags);
+}
+module.exports = exports.default;
+module.exports.default = exports.default;