Feature Request: User-initiated emergency lockout

[bkgoodman]

Requested by a user/RM: Ability for an end-user to report a problem which is so severe it is believed to require immediately lockout of the tool for safety purposes.

I would assume this could somehow be tied into the existing "Report Problem", and the "Tool Lockout" mechanisms. (i.e. ARMs could use existing mechanism to unlock).

This probably involves Backend work, and probably mqtt_daemon work to provide appropriate Slack/RM notifications when this occurs.