ReadonlyidOptional ReadonlyknownWhich of state's own fields the entity actually KNOWS, vs a safe floor it is reporting
because nobody has ever set or read it — absent when the entity draws no such distinction
(the overwhelming majority; every field it reports is equally authoritative). Forwarded
verbatim from ResourceRegistry; this router names no entity and invents nothing.
ReadonlyokReadonlypathOptional ReadonlyrevThe console revision AS OF this read (task #48) — the same stamp every stream event carries, off the one commit-seam counter, so a body from either door says how current it is in the same vocabulary. Absent on a console wired without the instrument.
Readonlystate
A successful
GET: the ONE state, as the entity's owner holds it.