Missing ACL - no ability to give user roles access to configuration

Your module does not include the ACL configuration so it's not possible to grant access to any users who do not have full administration rights.

Some helpful resources:

https://magento2tutorial.magestore.com/how-to-declare-acl-for-the-configuration-page-of-custom-module-in-magento-2/
https://devdocs.magento.com/guides/v2.4/ext-best-practices/tutorials/create-access-control-list-rule.html