The 2026-06-25 re-review observed that the gateway server no longer uses the
Contracts-generated Galaxy types (it consumes the wire-identical types from the
ZB.MOM.WW.GalaxyRepository package). That made galaxy_repository.proto look like
dead code. It is not: Go/Rust/Java/Python clients compile it by path, the .NET
client consumes Contracts.Proto.Galaxy.* via project reference, and
clients/proto/proto-inputs.json publishes it. Document this at the csproj entry
and in CLAUDE.md so it is not deleted in a future cleanup.
Joseph Doherty
c004b91164