evidence-pack.sh {pack|verify-pack} assembles a per-run proof pack from REAL
on-disk logs (summaries only — no raw secret/PII copied; decision-log passes the
data-exfil guard or the pack aborts). Produces the standard set: run-summary,
h1..h7 reports, redteam-result, benign-fp-report, artifact-manifest, decision-log,
plus a signed manifest head (evidence-pack.sig).
Tamper-evident: verify-pack recomputes every file hash vs artifact-manifest.json
(any change fails) and verifies the RSA signature over manifest-head.txt (a
manifest re-forge fails without the off-repo key).
Certified run: run-summary.certified is true ONLY when required gates pass
(H4 exercised, H5 audit chain valid, H5 telemetry verified, no unresolved cost
spike, benign-FP within budget) and none was silently skipped — missing evidence
records an honest reason and does NOT certify.
CLI mapping: `casan pack <id>` -> evidence-pack.sh pack; `casan verify-pack <id>`
-> evidence-pack.sh verify-pack. phase3-evidence-pack-tests.sh covers it.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>