docs new creates ADRs and plans from embedded templates; docs check reports
path:line: message problems per docs/docs-format.md.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Clarify null scalars, marker handling in frontmatter, the Decision Outcome
prose rule, section extent wording and link rule scope.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>