Environment variable used as the inbound channel for a caller-supplied
correlation id. Set by CellOS supervisor or CI runners to thread the
caller’s correlationId through to every emitted CloudEvent in this
scan, so the taudit findings can be joined to the upstream run that
triggered them. Falls back to a freshly minted Uuid::new_v4() when
unset.
Environment variable used as the inbound channel for a caller-supplied
scan-run id. This is distinct from TAUDIT_CORRELATION_ID: one operator
flow may execute multiple scans, each with a distinct scan run id.