The `livestream` strongRef on place.stream.live.teleport was required, which would reject teleport records from older clients that don't send it. Make it optional instead: the generated Go field is now a pointer (*comatproto.RepoStrongRef, omitempty), and the server treats a missing strongRef as a no-op (it still sends viewers over, it just won't end a source stream). The client only includes the field when there's an active livestream. Regenerated via `make lexicons`. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>