fix(ci): use sudo -iu e instead of docker-user alias for deploy

Closes #38
Assisted-by: Claude:claude-sonnet-4-6

.github/workflows/ui.yml

@@ -114,7 +114,7 @@ jobs:
             -o StrictHostKeyChecking=no \
             -o IdentitiesOnly=yes \
             ${{ secrets.SSH_USER }}@${{ secrets.SSH_HOST }} \
-            "docker-user << 'EOF'
+            "sudo -iu e << 'EOF'
           docker pull $SHA_TAG
           docker stop dashboard-ui 2>/dev/null || true
           docker rm   dashboard-ui 2>/dev/null || true