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-site/visual-inspection-vs-traditional-methods/index.html

@@ -257,7 +257,7 @@
 
       <div class="vs-grid">
         <div class="vs-card pro">
-          <h3>🤖 AI Visual Inspection</h3>
+          <h3> AI Visual Inspection</h3>
           <p>Cameras, drones, and AI models detect surface defects automatically. Continuous, scalable, and data-rich.</p>
           <ul>
             <li>5-10x faster for large structures</li>
@@ -269,7 +269,7 @@
           </ul>
         </div>
         <div class="vs-card con">
-          <h3>🔧 Traditional Manual Inspection</h3>
+          <h3> Traditional Manual Inspection</h3>
           <p>Certified engineers physically examine structures using scaffolding, ropes, and handheld tools.</p>
           <ul>
             <li>Superior for subsurface defects</li>