Release engineering-workflow 0.8.1

[xeonvs]

Summary

• add a stateless, exact-snapshot privacy review token for eligible synthetic fixture findings
• keep matched values and per-line fingerprints out of agent output, while preserving hard blocks for sensitive categories
• teach agents the explicit approval flow and move Codex/Claude installation guidance to the top of the README
• publish deterministic Codex and Claude plugin packages at version 0.8.1

Validation

• repository validator before and after the full test suite
• 212 tests passed; 1 platform-dependent skip
• deterministic marketplace package check
• skill-creator, plugin-creator, and strict Claude plugin/marketplace validation
• Claude plugin tag dry-run
• fully redacted gitleaks scans of the tree and all Git refs: 0 findings
• git diff --check

Closes #3