feat: Passwordless auth — backend deployad, frontend uppdaterad

- Backend: Docker-container på port 8082
- Redis: Intern container (ingen exposed port)
- Nginx-config: nginx-passwordless.conf (väntar på deploy)
- Webb: API_BASE uppdaterad till api.quixzoom.com
- Fix: datetime timezone-aware i approve-endpoint
- Test: End-to-end flöde verifierat

iom/quixzoom-auth-service/docker-compose.yml

@@ -5,7 +5,7 @@ services:
     build: .
     container_name: quixzoom-passwordless
     ports:
-      - "8080:8080"
+      - "8082:8080"
     environment:
       - PORT=8080
       - HOST=0.0.0.0
@@ -28,8 +28,7 @@ services:
   redis:
     image: redis:7-alpine
     container_name: quixzoom-auth-redis
-    ports:
-      - "6379:6379"
+    # No exposed port - internal only
     volumes:
       - redis-data:/data
     networks: