The unit level fails on a file that differs, is missing or was not generated; a build
ask answers the same files in its out-of-step, a failed build's too, so a trunk build's
end raises generated-types-out-of-step (lead's ruling on A2k finding 1). The compare is
buildstep's, each build module its own root, with the seat generator as a requirement.
Claude-Session: https://claude.ai/code/session_01JG73KJNrH5EgFXMKKYSrig
The runner, the toolchain guard, the fetch, the parsers, buildcpu, the conformance kit and mesh-pack move from mesh-sdk's
buildstep into modules/mesh-build-go/buildstep (own go.mod). mesh-build-go, mesh-build-node and mesh-build-image require it
by a same-repository replace; what the delivery parts read (the failure contract, the fetch request, the stale sweep, the
module tree shape, NewID, CapacitySetting) stays imported from mesh-sdk as sdkstep.
Claude-Session: https://claude.ai/code/session_01NcbgfJ9Gum47zkFKWRaovL
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