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/caniuse-lite/dist/lib/statuses.js

@@ -0,0 +1,9 @@
+module.exports = {
+  1: 'ls', // WHATWG Living Standard
+  2: 'rec', // W3C Recommendation
+  3: 'pr', // W3C Proposed Recommendation
+  4: 'cr', // W3C Candidate Recommendation
+  5: 'wd', // W3C Working Draft
+  6: 'other', // Non-W3C, but reputable
+  7: 'unoff' // Unofficial, Editor's Draft or W3C "Note"
+}

landvex/node_modules/caniuse-lite/dist/lib/supported.js

@@ -0,0 +1,9 @@
+module.exports = {
+  y: 1 << 0,
+  n: 1 << 1,
+  a: 1 << 2,
+  p: 1 << 3,
+  u: 1 << 4,
+  x: 1 << 5,
+  d: 1 << 6
+}