Request AI classification of one artifact.

Unlike the rating an artifact picks up from its host's verdict, a classification carries the artifact's own verdict, report and tags.

The host tag exclusion does not apply: it scopes automatic triage, and a classification is only ever asked for, so an artifact on an excluded host is classified like any other. An id that names no artifact is a 404, as it is on the read: a list can easily hold a row something else has since deleted.

A classification outranks a host verdict's reading of the same artifact, and survives later verdicts for its host. A verdict takes back only what a previous verdict set, and it does not apply a finding's severity to an artifact that carries a classification: that artifact keeps its own verdict, report and severity until it is classified again, its AI severity is reverted, or it stops existing.