Draft: expand claude-lint path verification plan

[randlee]

Summary

This draft PR extends the claude-lint plan so path verification is an explicit part of the skill design, not just an implied review behavior.

Added to the plan

• supplemental scripts for path verification under packages/sc-claude-lint/scripts/
• explicit script responsibilities for:
  • verify-path-references.py
  • lint-path-resolution.py
• scope and output requirements for machine-verifying relative and absolute path resolution
• authoring steps for implementing and regression-testing the path scripts
• success criteria that require scripted path validation, not only prose review

Why

The skill needs a mechanical way to prove that referenced paths resolve correctly across:

• repo-local .claude/... installs
• owner-relative ./... and ../... references
• packaged prompt surfaces that map install-time .claude/... paths back to package source artifacts
• informational home-scoped paths such as ~/.claude/...

Without supplemental scripts, this part of the linting surface stays too manual and too easy to regress.

Notes

• This PR updates the plan only.
• No tests were run because the committed change is documentation-only.