Bland AI + Mailbox Power Integration

Keep Bland AI and Mailbox Power aligned: when communication events happen in one, update the other automatically.

Example: when Bland AI's "Watch New Calls" fires, WEXTL can "Add a Contact to a Group" in Mailbox Power. Bland AI has 1 trigger (including Watch New Calls); Mailbox Power has 14 actions (including Add a Contact to a Group, Add a Contact to Automation, and Create a Contact).