Add standalone mode for sx-web.org deployment

- SX_STANDALONE=true env var: no OAuth, no root header, no cross-service
  fragments. Same image runs in both rose-ash cooperative and standalone.
- Factory: added no_oauth parameter to create_base_app()
- Standalone layout defcomps skip ~root-header-auto/~root-mobile-auto
- Fixed Dockerfile: was missing sx/sx/ component directory copy
- CI: deploys sx-web swarm stack on main branch when sx changes
- Stack config at ~/sx-web/ (Caddy → sx_docs, Redis)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.gitea/workflows/ci.yml

@@ -84,13 +84,25 @@ jobs:
               fi
             done
 
-            # Deploy swarm stack only on main branch
+            # Deploy swarm stacks only on main branch
             if [ '${{ github.ref_name }}' = 'main' ]; then
               source .env
               docker stack deploy -c docker-compose.yml rose-ash
               echo 'Waiting for swarm services to update...'
               sleep 10
               docker stack services rose-ash
+
+              # Deploy sx-web standalone stack (sx-web.org)
+              SX_REBUILT=false
+              if [ \"\$REBUILD_ALL\" = true ] || echo \"\$CHANGED\" | grep -q '^sx/'; then
+                SX_REBUILT=true
+              fi
+              if [ \"\$SX_REBUILT\" = true ]; then
+                echo 'Deploying sx-web stack (sx-web.org)...'
+                docker stack deploy -c /root/sx-web/docker-compose.yml sx-web
+                sleep 5
+                docker stack services sx-web
+              fi
             else
               echo 'Skipping swarm deploy (branch: ${{ github.ref_name }})'
             fi