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/animations/_slide.scss

@@ -0,0 +1,117 @@
+@mixin transform {
+    transform: translate3d(0, 0, 0);
+}
+
+@keyframes #{$rt-namespace}__slideInRight {
+    from {
+        transform: translate3d(110%, 0, 0);
+        visibility: visible;
+    }
+    to {
+        @include transform;
+    }
+}
+
+@keyframes #{$rt-namespace}__slideInLeft {
+    from {
+        transform: translate3d(-110%, 0, 0);
+        visibility: visible;
+    }
+    to {
+        @include transform;
+    }
+}
+
+@keyframes #{$rt-namespace}__slideInUp {
+    from {
+        transform: translate3d(0, 110%, 0);
+        visibility: visible;
+    }
+    to {
+        @include transform;
+    }
+}
+
+@keyframes #{$rt-namespace}__slideInDown {
+    from {
+        transform: translate3d(0, -110%, 0);
+        visibility: visible;
+    }
+    to {
+        @include transform;
+    }
+}
+
+@keyframes #{$rt-namespace}__slideOutRight {
+    from {
+        @include transform;
+    }
+    to {
+        visibility: hidden;
+        transform: translate3d(110%, 0, 0);
+    }
+}
+
+@keyframes #{$rt-namespace}__slideOutLeft {
+    from {
+        @include transform;
+    }
+    to {
+        visibility: hidden;
+        transform: translate3d(-110%, 0, 0);
+    }
+}
+
+@keyframes #{$rt-namespace}__slideOutDown {
+    from {
+        @include transform;
+    }
+    to {
+        visibility: hidden;
+        transform: translate3d(0, 500px, 0);
+    }
+}
+
+@keyframes #{$rt-namespace}__slideOutUp {
+    from {
+        @include transform;
+    }
+    to {
+        visibility: hidden;
+        transform: translate3d(0, -500px, 0);
+    }
+}
+
+.#{$rt-namespace}__slide-enter {
+    &--top-left,
+    &--bottom-left {
+        animation-name: #{$rt-namespace}__slideInLeft;
+    }
+    &--top-right,
+    &--bottom-right {
+        animation-name: #{$rt-namespace}__slideInRight;
+    }
+    &--top-center {
+        animation-name: #{$rt-namespace}__slideInDown;
+    }
+    &--bottom-center {
+        animation-name: #{$rt-namespace}__slideInUp;
+    }
+}
+
+.#{$rt-namespace}__slide-exit {
+    &--top-left,
+    &--bottom-left {
+        animation-name: #{$rt-namespace}__slideOutLeft;
+    }
+    &--top-right,
+    &--bottom-right {
+        animation-name: #{$rt-namespace}__slideOutRight;
+    }
+    &--top-center {
+        animation-name: #{$rt-namespace}__slideOutUp;
+    }
+    &--bottom-center {
+        animation-name: #{$rt-namespace}__slideOutDown;
+    }
+}