Billingo + Lunch Money Integration

Keep Billingo and Lunch Money aligned: when finance events happen in one, update the other automatically.

Example: when Billingo's "Watch Bank Accounts" fires, WEXTL can "Create a Transaction Group" in Lunch Money. Billingo has 12 triggers (including Watch Bank Accounts, Watch Bank Accounts, and Watch Clients); Lunch Money has 9 actions (including Create a Transaction Group, Delete a Transaction Group, and Get a Transaction).