docs: add MUW-formatted review reply for latest PR

[Fearvox]

Motivation

• Provide a ready-to-post MUW-formatted review response for the most recent pull request that documents prioritized findings (including a high-severity default repo mismatch in the new review-lane script) and a residual verification gap for redaction safety.

Description

• Add .github/MUW_REVIEW_REPLY.md, a reviewer-ready MUW reply containing VERDICT, VERDICT_SUMMARY, and EVIDENCE that lists the issues, impact, and fix guidance for the PR under review.

Testing

• Verified repository state and file content with git status --short, git rev-parse --abbrev-ref HEAD, git log --oneline --decorate --max-count=5, git diff --stat upstream/main...HEAD, and nl -ba .github/MUW_REVIEW_REPLY.md | sed -n '1,200p', all of which completed successfully.

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Codex Task