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

node_modules/http-proxy-middleware/dist/index-hono.js

@@ -0,0 +1,10 @@
+/**
+ * Hono-specific API entrypoint.
+ *
+ * This is intentionally published as a dedicated subpath (`http-proxy-middleware/hono`)
+ * so the root package types do not import `hono` / `@hono/node-server`.
+ *
+ * Keeping these exports out of the root entrypoint prevents non-Hono consumers from
+ * getting TypeScript module-resolution errors for optional Hono dependencies.
+ */
+export { createHonoProxyMiddleware } from './factory-hono.js';