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-admin-v2/node_modules/chart.js/dist/plugins/plugin.filler/filler.segment.d.ts

@@ -0,0 +1,36 @@
+export function _segments(line: any, target: any, property: any): ({
+    source: any;
+    target: {
+        property: any;
+        start: any;
+        end: any;
+    };
+    start: any;
+    end: any;
+} | {
+    source: {
+        start: number;
+        end: number;
+        loop: boolean;
+        style?: any;
+    };
+    target: {
+        start: number;
+        end: number;
+        loop: boolean;
+        style?: any;
+    };
+    start: {
+        [x: number]: any;
+    };
+    end: {
+        [x: number]: any;
+    };
+})[];
+export function _getBounds(property: any, first: any, last: any, loop: any): {
+    property: any;
+    start: any;
+    end: any;
+};
+export function _pointsFromSegments(boundary: any, line: any): any[];
+export function _findSegmentEnd(start: any, end: any, points: any): any;