SMS triggers check are from the client side only,
that is under care of the user. It is simple to reach a situation where
from the server side, triggers are no more valid, and related task ramain indefinitively queued.
To prevent that, ecFlow triggers check is more robust:
- triggers have to be consistent from the client side.
- 'extern' can only refer to an external suite
- server can be requested to confirm that all triggers are referring to an existing node,
in the loaded suites
