Genesis's base step built only mesh-tools, the TypeScript toolchain. The store's and the bus's modules
carry Go bundles, compiled in mesh-tools-go, so genesis stopped at the store step: "this mesh holds no
copy of it. Build mesh-tools-go first". The base step now builds mesh-tools-go too, from
--tools-go-source or the repository beside --tools-source, and a test holds every toolchain a genesis
module's bundles compile in, read from the catalogue, to the ones the step builds.
jochen