Each queue gets a named worker filtered to accept.<queue>.*; an asker is granted
accept.<queue>.<its seat> for the queues of the kinds it is a caller of, read from
the definitions' callers lists; main's accept.<queue> is the checker's and the
builder's alone. The purge of named subjects and workers (grants_named_purge) is
not in this commit.
Builds: design 47 G §543, §544, §600, §601, A-163, A-170, A-184
Claude-Session: https://claude.ai/code/session_01NcbgfGKaxw984XyAPfLm4h