This is a cool pitch! It rhymes with something I've been thinking about for Tollens - that a software project needs some kind of record for its historical quality decision making - "why did we do this and not that", version control for "why" not "what".
I didn't dig into the full technical details of what you are proposing, but I would love to see about more explanation of that "why" thinking here - since you are presenting architecture it is always useful for the audience if you include "why" in support of your "what"!
One other question that comes to mind as I read your pitch is "what organisations should use this, and what organisations should not?" - it seems at first glance a potentially quite heavyweight mechanism and I can imagine many kind of organisations where this level of administrative overhead is potentially not worth the value that a rigorous audit trail system could bring