A RAILWAY_TOKEN secret with trailing whitespace/newline (common from op
read, heredoc, shell export) was returned verbatim and produced invalid
Authorization: Bearer headers and silent Railway 401s. Trim the env-var
lane and treat whitespace-only as UNSET so the config-file fallback runs.
Also adds a missing should-have-thrown guard in the NO_HOME test and
removes a stale gateIgnore clause from findUntrackedServices docstring.