mkcodec/mwsm ? reverse-engineered prompt

Build me a small web app and API that connects to MkAuth and lets me send WhatsApp messages automatically. I want a simple dashboard where I can see the connection status, log in with WhatsApp Web, and manage message sending for customers. It should help with billing notifications too, so when a charge is created or updated it can send the right message to the customer, including things like payment links or PDF details when available.

Make it run cleanly on Debian and Ubuntu, and also in Docker if possible. Keep the interface simple and practical, with a clear status page, basic controls, and logs so I can tell what was sent and what failed. If you need to check current docs or best practices for WhatsApp Web or MkAuth integration, look them up online.