Add optional detailed landing zone taskflow output

[Mikko Nieminen]

Something I've been thinking for a while but is still in the planning phase. For maximum transparency and potential debugging, we should enable optional viewing of detailed output of landing zone flows. This could be in a similar fashion to e.g. CI jobs in git frontends, where we would get a line of log for each activity on each file.

This should be optional, as otherwise it's just a chaos of information. The status levels themselves should stay as is. Probably this would go into a modal the user can open.

Also, these technically could go into the timeline event extra data field once done. I'm not fully sure yet if that is useful most of the time. However, if we want to save these logs, this is the obvious choice.

The could, of course, also be made retrievable via REST API, if there is use and demand for it.

Something to be thought about, opening an issue for potential discussion and planning.