The grants part's real-bus test gains a case: the tool runner's composed
account hears a module's event, a module stream's and a restricted
stream's whose grant names no tool runner, still after that grant changes
and the accounts are composed again; it publishes none, hears no accept
or proof, and gets no consumer or acknowledgement on the restricted stream.
Builds: design 34 every-event §9, §27
Claude-Session: https://claude.ai/code/session_01NcbgfGKaxw984XyAPfLm4h
jschoubben
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