New lib/review/threat-model.mjs, the one reader both gates use:
readThreatModel(briefText) -> {present, inside, outside, problems} through
brief-validator's parseThreatModel; usable(briefPath, repo) = present, well
formed, and the intent approval current by the two checks /trekplan Phase 1
runs (checkIntentApprovalContent, then verifyLog kind intent with the
hash's sha256: stripped and the subject normalized), else not usable with
the reason in `why`; backedLine(finding, tm) = the Outside: text the
finding's threat_model_ref equals exactly, else null. Only a security
finding not from an engine can be outside (218): a finding with an
`engine`, or carrying the engines' key SECURITY_REVIEW_VULNERABILITY, is
never backed.
Part 2, step 2.2 of the E plan.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
