After both `Start cortex.service` and `Start neuron.service`, sleep 10s
and run `journalctl --unit <unit> -I --no-pager` to record the latest
invocation's log in the workflow output. Step is guarded by
`if: always()` so a failed start still leaves a usable trace.
infra-setup.sh now adds gitea_ci to the systemd-journal group during
user provisioning, so `journalctl` works without a sudoers entry.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>