Adds test-advisory-scan.py (58 offline tests on fixtures + 6 live regressions
against the week-2026-08-07 report) and audit-advisory-scan.py, which re-derives
every count with a SEPARATE semver implementation and its own release fetch and
diffs against the scanner. Both found real defects:
1. Window membership was compared on ragged tuples, so (18,) < (18,0) — a CVE
patched in 18.0 fell OUTSIDE a window ending at 18. Bare major tags are the
norm for sidecars (postgres:18, redis:8-alpine). Now zero-padded, which also
keeps the upper bound conservative (18.5 stays out of a window ending at 18).
2. Advisories with no knowable fix version were silently counted as 'not fixed'.
Twelve redis advisories say patched_versions 'TBD' or '7.4.X' with an
open-ended range — six of them high severity. They are now INDETERMINATE:
not counted, not dismissed, and surfaced in the output.
All twelve turned out to be genuinely fixed: redis names each in the release
notes of every branch that got the fix (CVE-2025-32023 -> 6.2.19, 7.2.10,
7.4.5, 8.0.3, 8.2.0). So a third deterministic method resolves them from
release notes, with the naming tags recorded as the citation. discourse's
redis contribution goes 5 -> 17, and its total 128 -> 140.
Pass 2 (--adjudicate) is the model-judged stage for what arithmetic cannot
settle: it hands over each open case's full evidence, plus every verdict pass 1
reached, and takes FIXED/NOT-FIXED/STILL-UNKNOWN with a reason citing that
evidence. It may only raise a count. Vendor-page-only CVEs — the shape of both
gitea CVSS-9.8 RCEs — now reach it instead of being dropped.
Tests cover pass 1 only, by design; pass 2's judgement is a model's. What is
tested there is deterministic: which cases it selects, and that truncation is
announced rather than silent.
SPEC.md rewritten around the two passes.
