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/redis-info/.jsbeautifyrc

@@ -0,0 +1,16 @@
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+  "brace_style": "collapse",
+  "keep_array_indentation": true,
+  "keep_function_indentation": true,
+  "eval_code": false,
+  "unescape_strings": false,
+  "break_chained_methods": false,
+  "e4x": false,
+  "wrap_line_length": 0,
+  "format_on_save": true
+}