- Restore .github/workflows/ci.yaml that was deleted in April cleanup
- Add .markdownlint.yaml with relaxed rules for skill files
- Fix MD040 error in skills/sdlc/SKILL.md (add language to code block)
- Allows line lengths > 80, emphasis-as-headings, compact tables
Fixes CI failures on 'Merge POLICIES.md content into agent instruction bundles' commit.
Co-Authored-By: Paperclip <noreply@paperclip.ing>
