docs: publish thesis evaluation bundle

docs/thesis/evidence-index.md

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+# Thesis Evidence Index
+
+The claim-to-evidence map now lives inline in
+[`system-design-implementation.md`](system-design-implementation.md), Appendix B:
+Evidence Index.
+
+This file remains as a stable pointer for older roadmap and project-map links.
+
+For the external-agent challenge evaluation workflow, including trial profiles,
+manual audits, and report interpretation, see
+[`../runbooks/agent-challenge-evaluation.md`](../runbooks/agent-challenge-evaluation.md).
+The primary checked cohort and generated aggregate are
+[`agent-challenge-cohort.json`](agent-challenge-cohort.json) and
+[`agent-challenge-results.md`](agent-challenge-results.md).