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/date-fns/esm/constants/index.d.ts

@@ -0,0 +1,2 @@
+export const maxTime: number
+export const minTime: number

landvex/node_modules/date-fns/esm/constants/index.js

@@ -0,0 +1,15 @@
+/**
+ *  Maximum allowed time.
+ *  @constant
+ *  @type {number}
+ *  @default
+ */
+export var maxTime = Math.pow(10, 8) * 24 * 60 * 60 * 1000;
+/**
+ *  Minimum allowed time.
+ *  @constant
+ *  @type {number}
+ *  @default
+ */
+
+export var minTime = -maxTime;

landvex/node_modules/date-fns/esm/constants/index.js.flow

@@ -0,0 +1,4 @@
+// @flow
+
+declare export var maxTime: number
+declare export var minTime: number