[Task] Implement a projection that takes (room x powerlevel ) annotated by ( permission x protection )

[Gnuxie]

• If we go over 2 focus sessions on this and it's clear this isn't going to work, then it's time to re-evaluate
• Try use the SemanticType abstraction to test the reducers

[Gnuxie]

OK we've now got this locally but it is meaingless without the draupnir side introspecting into it