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

command-center/server.log

@@ -0,0 +1,4 @@
+[AAMOS Command Center] http://0.0.0.0:7071
+[AAMOS Command Center] Ledger proxy: localhost:3250
+[AAMOS Command Center] quiXzoom proxy: localhost:8080
+[AAMOS Command Center] Gateway proxy: localhost:8081

command-center/server.mjs

@@ -0,0 +1,44 @@
+import express from 'express';
+import { createProxyMiddleware } from 'http-proxy-middleware';
+import path from 'path';
+import { fileURLToPath } from 'url';
+
+const __dirname = path.dirname(fileURLToPath(import.meta.url));
+const app = express();
+const PORT = 7071;
+
+// Proxy till aamos-ledger (3250)
+app.use('/api/ledger', createProxyMiddleware({
+  target: 'http://localhost:3250',
+  changeOrigin: true,
+  pathRewrite: { '^/api/ledger': '' }
+}));
+
+// Proxy till quixzoom (8080)
+app.use('/api/quixzoom', createProxyMiddleware({
+  target: 'http://localhost:8080',
+  changeOrigin: true,
+  pathRewrite: { '^/api/quixzoom': '' }
+}));
+
+// Proxy till landvex-api (8081)
+app.use('/api/gateway', createProxyMiddleware({
+  target: 'http://localhost:8081',
+  changeOrigin: true,
+  pathRewrite: { '^/api/gateway': '' }
+}));
+
+// Static files
+app.use(express.static(__dirname));
+
+// Health check
+app.get('/health', (req, res) => {
+  res.json({ ok: true, service: 'aamos-command-center', port: PORT });
+});
+
+app.listen(PORT, '0.0.0.0', () => {
+  console.log(`[AAMOS Command Center] http://0.0.0.0:${PORT}`);
+  console.log(`[AAMOS Command Center] Ledger proxy: localhost:3250`);
+  console.log(`[AAMOS Command Center] quiXzoom proxy: localhost:8080`);
+  console.log(`[AAMOS Command Center] Gateway proxy: localhost:8081`);
+});