Add project-level Cursor skill discovery support by introducing
`.cursor/skills/caveman/SKILL.md` as a copy of the canonical
`skills/caveman/SKILL.md`, without changing skill behavior.
Update the sync workflow to keep the new Cursor copy aligned with the
canonical source alongside existing synced targets, and include it in the
CI commit step. Also update CONTRIBUTING notes to document that this new
path is auto-synced and should not be edited directly.
Update .github/workflows/sync-skill.yml to add a pre-change step that configures git user/email and runs git pull --rebase origin main before copying files, reducing risk of merge conflicts. Also rename the commit step to "Commit and push if changed" and remove redundant git config and pull from that step so it only commits and pushes the updated files.
Update GitHub Actions workflow to add concurrency controls, checkout the main ref, simplify ZIP creation (zip directly from skills/), and pull --rebase before committing; commit message now includes [skip ci]. Also update README to add an "Intensity Levels" nav link. Clarify skills/caveman/SKILL.md: document explicit /caveman lite|full|ultra triggers, expand the description of dropped filler/pleasantries/hedging, and apply small formatting tweaks.
Joao Vasques