Replace single-file XML task with skill directory format (SKILL.md +
workflow.md + bmad-skill-manifest.yaml) following the pattern
established by bmad-review-adversarial-general.
Update all reference locations: bmad-skill-manifest.yaml, module-help.csv,
step-04-review.md, and bmad-os-review-pr instructions.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>