Separated skill-wiki.md bundle into compile.md, lint.md, migration.md.
Backported compile.md and SKILL.md (skill-wiki.md) from the installed
skill at ~/.claude/skills/wiki-maintenance/ so the repo archive reflects
the shipped two-layer Sources/+Wiki/ taxonomy rather than the old flat draft.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
