Audit: reduce status parsing duplication

[integrate-your-mind]

Summary

• consolidate OpenCode status parsing to avoid duplicated regex checks
• add PR audit report

Audit Report

• docs/pr-audits/pr-6-fix-activity-state-20260203.md

Testing

• not run (not requested)

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[devin-ai-integration]

✅ Devin Review: No Issues Found

Devin Review analyzed this PR and found no potential bugs to report.

View in Devin Review to see 3 additional flags.

[openclaw-consensus-bot]

Stale-work sweep update: CI failure root cause confirmed.

npm run test fails in GitHub Actions because bash does not expand tests/unit/**/*.test.ts (globstar off by default), so Node receives a literal path and exits.

Verified locally on this PR branch:

• cherry-picked commit cf91d423b8ee405a89cd6a8fe871199c4555e440
• commit adds scripts/run-node-tests.js and updates package.json test scripts
• npm run test passes end-to-end

Unblock action: cherry-pick cf91d42 onto this PR branch and push.

Note: this bot cannot push to integrate-your-mind/consensus-cli (403 permission denied).

[integrate-your-mind]

Closing as stale. This branch diverged from the current #6 head and is now 23 commits behind it. Its only unique implementation is an untested deriveStatusFlags refactor in src/scan.ts, plus a dated audit note. The idea remains available in commit bb19bda67b891c95d602bd3d7273d2fd51a76a2b, but it should be reimplemented with direct unit coverage against the current scanner rather than merged from this old branch.