"auth_account_id" import {ACCOUNT_ID_KEY} from '@fuzdev/fuz_app/hono_context.js'; Hono context variable name for the authenticated account id.
Set by the auth middleware (session, bearer, or daemon token) on a valid
credential. null for unauthenticated requests. The route-spec wrapper /
RPC dispatcher's authorization phase reads this when resolving the acting
actor; account-grain auth guards (require_auth) and account-grain handlers
read it directly.