[Feature] Use Error#cause to show the cause of an error when an exception occurs in framework code

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Error/cause

For example, when something occurs in backburner, perhaps we can do a little bit of unwravelling when to get the stack when printing.

Some errors may not be doable due to scheduled actions, but maybe it's worth keeping track of that as an opt in? (what are perf implications? (and what is the difference between that an existing backburner.debug?))