docs(claude): add code-references rule to scratchpads workflow

[couimet]

Discovered while working on PR #308 that scratchpads are much more useful when code references use RangeLink-format clickable links instead of plain text like "(lines 26-37)". Also documents that wrapping links in backticks breaks RangeLink navigation (tracked in #310).

Benefits:

• Scratchpad references become one-click navigable
• Prevents the backtick-wrapping pitfall that breaks link parsing

Summary by CodeRabbit

• Documentation
  • Added code-references guidance blocks to two documentation sections with formatting instructions, accepted formats, and examples.

[coderabbitai]

Caution

Review failed

The pull request is closed.

Walkthrough

Added code-references guidance blocks to two "when-NOT-to-use" sections in CLAUDE.md—one in the main workflow and one in the scratchpads workflow. Each block provides instructions on RangeLink-format usage, workspace-relative paths, and formatting examples without altering any logic.

Changes

Cohort / File(s)	Summary
Documentation Updates CLAUDE.md	Added identical code-references guidance blocks to two sections with instructions on using RangeLink-format, workspace-relative paths, accepted formats, and examples of correct and incorrect usage patterns.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Poem

🐰 Two sections now shine bright,
With guidance on references done right,
RangeLink paths and formats clear,
No logic changed, just wisdom here! ✨

✨ Finishing touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch side-quest/claude-md-code-references-rule

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands and usage tips.}