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/react-toastify/scss/_progressBar.scss

@@ -0,0 +1,47 @@
+@keyframes #{$rt-namespace}__trackProgress {
+  0%{
+    transform: scaleX(1);
+  }
+  100%{
+    transform: scaleX(0);
+  }
+}
+
+.#{$rt-namespace}__progress-bar {
+  position: absolute;
+  bottom: 0;
+  left: 0;
+  width: 100%;
+  height: 5px;
+  z-index: $rt-z-index;
+  opacity: 0.7;
+  background-color: rgba(255,255,255,.7);
+  transform-origin: left;
+
+  &--animated {
+    animation: #{$rt-namespace}__trackProgress linear 1 forwards;
+  }
+
+  &--controlled {
+    transition: transform .2s;
+  }
+
+  &--rtl {
+    right: 0;
+    left: initial;
+    transform-origin: right;
+  }
+
+  &--default{
+    background: $rt-color-progress-default;
+  }
+
+  &--dark{
+    background: $rt-color-progress-dark;
+  }
+  
+  &--info{}
+  &--success{}
+  &--warning{}
+  &--error{}
+}