stacks/f1-stream/files/backend/playback_verifier.py and
chrome_browser.py describe an in-cluster CDP caller, but the deployed
f1-stream image is built from github.com/ViktorBarzin/f1-stream which
has neither file — verified by `kubectl exec ls /app/backend/` and
grepping for 'CHROME' in the deployed pod.
The infra/stacks/f1-stream/files/backend/ tree is a vestigial design
that was never wired up to a build pipeline. Calling it out so the
next reader doesn't waste time debugging why the migration "didn't
take effect" — it took effect on dead code.
The hourly snapshot-harvester CronJob is the only live in-cluster
caller of the CDP endpoint today.