Store the customized Shopro mall so it can be kept on the remote.

Co-authored-by: Cursor <cursoragent@cursor.com>

addons/epay/library/hyperf/engine/README.md

@@ -0,0 +1,7 @@
+# Swoole Engine
+
+![Swoole Engine Test](https://github.com/hyperf/engine/workflows/Swoole%20Engine%20Test/badge.svg)
+
+```
+composer require hyperf/engine
+```