Run the registrar in its own process and prove that a sibling client
discovers the service through registry lookup instead of an existing
peer channel.
Retry ephemeral bind collisions, publish readiness atomically and
validate bounded cross-platform shutdown. Document actual duplicate
name and multi-registrar ordering semantics alongside the example.
Move the demo under the discovery examples and wrap process ownership
in an `@acm`. Record the future public subsystem, Piker service and
pytest isolation follow-ups.
(this patch was generated in some part by `opencode` using `gpt-5.6-sol` (`openai`))