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/react-router/modules/generatePath.js

@@ -0,0 +1,27 @@
+import pathToRegexp from "path-to-regexp";
+
+const cache = {};
+const cacheLimit = 10000;
+let cacheCount = 0;
+
+function compilePath(path) {
+  if (cache[path]) return cache[path];
+
+  const generator = pathToRegexp.compile(path);
+
+  if (cacheCount < cacheLimit) {
+    cache[path] = generator;
+    cacheCount++;
+  }
+
+  return generator;
+}
+
+/**
+ * Public API for generating a URL pathname from a path and parameters.
+ */
+function generatePath(path = "/", params = {}) {
+  return path === "/" ? path : compilePath(path)(params, { pretty: true });
+}
+
+export default generatePath;