mesh/check checking 57193ab2e474 on f7cd4698db7e | novox/mesh-delivery#115 in group fix/runner-carries-no-engine-state
Second meeting of the engine-state-in-runner kind; thorough: the runner
never carries the engine module. The live placement names mesh-host,
and with its health state the runner was a second writer, so every
grant since 13:54 was held back. The seeded-placement test now carries
the engine's manifest and refuses any runner write of mesh-host_*.