fix(deploy): allow direct production deploy host prefix

infra/docker/deploy-production.sh

@@ -1,7 +1,7 @@
 #!/bin/sh
 set -eu
 
-HOST_PREFIX="${HOST_PREFIX:-/host}"
+HOST_PREFIX="${HOST_PREFIX-/host}"
 ROOT_DIR="$HOST_PREFIX/var/lib/xiaoxia-saas-production/repo"
 COMPOSE_DIR="$ROOT_DIR/infra/docker"
 ENV_FILE="$HOST_PREFIX/var/lib/xiaoxia-saas-production/.env"

tests/unit/test_release_scripts.py

@@ -22,6 +22,7 @@ def test_gitea_production_deploy_uses_production_ports():
 def test_deploy_production_uses_production_infra_and_project():
     script = Path("infra/docker/deploy-production.sh").read_text(encoding="utf-8")
 
+    assert 'HOST_PREFIX="${HOST_PREFIX-/host}"' in script
     assert "xiaoxia-postgres-production" in script
     assert "xiaoxia-redis-production" in script
     assert "xiaoxia-postgres\n" not in script