B0's mesh-sdk go/delivery run lines move to their registry homes: the
run job, the one-job rule, the Go check stream alone, the input's bound,
digest and key in sdk/buildstep; AskWhat's run case in sdk/buildrun; the
ask of the verb input and the check of a verdict's judged-by in
meshdeliverycheckerclient. B0's tests come in as rows of the existing
tables.
Claude-Session: https://claude.ai/code/session_01NcbgfFSnn24M3GcqttoU7i