Consistent output path specification

Configuration files defining operations that generate data outputs must always include a <save_to> element specifying the output location. Follow established patterns for similar operations, typically using predictable paths like .roo/temp/pr-[PR_NUMBER]/[operation]-output.{json|diff}. This ensures operation outputs are consistently stored and easily locatable by other processes.

Example:

<operation name="fetch_comments">
  <description>Get all comments on the PR</description>
  <command>gh pr view [PR_NUMBER] --repo [owner]/[repo] --json comments --jq '.comments'</command>
  <output_format>JSON array of comments</output_format>
  <save_to>.roo/temp/pr-[PR_NUMBER]/pr-comments.json</save_to>
</operation>