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/zod/src/v4/classic/checks.ts

@@ -0,0 +1,30 @@
+export {
+  _lt as lt,
+  _lte as lte,
+  _gt as gt,
+  _gte as gte,
+  _positive as positive,
+  _negative as negative,
+  _nonpositive as nonpositive,
+  _nonnegative as nonnegative,
+  _multipleOf as multipleOf,
+  _maxSize as maxSize,
+  _minSize as minSize,
+  _size as size,
+  _maxLength as maxLength,
+  _minLength as minLength,
+  _length as length,
+  _regex as regex,
+  _lowercase as lowercase,
+  _uppercase as uppercase,
+  _includes as includes,
+  _startsWith as startsWith,
+  _endsWith as endsWith,
+  _property as property,
+  _mime as mime,
+  _overwrite as overwrite,
+  _normalize as normalize,
+  _trim as trim,
+  _toLowerCase as toLowerCase,
+  _toUpperCase as toUpperCase,
+} from "../core/index.js";