v0.6.0

Minor Changes

• f1b772e: - Approval retention matches the PR's change by git patch-id --verbatim, so a base merge that shifts line numbers keeps the approval. Whitespace changes still trigger a review.
  • Each approval names the fact the change is safe because of and how the reviewer checked it: claimed, cited, traced or tested. A high-risk approval on a claimed fact escalates to a person.