scribe-mode v1.0.0

Initial repo scaffold: scribe-mode skill + per-skill release workflow

Adds the scribe-mode SKILL.md, a GitHub Actions workflow that builds
a correctly-structured release ZIP on tag push (<skill>-vX.Y.Z), and
a release.sh helper to cut a version in one command. Git tags are the
sole source of version truth — SKILL.md carries no version field.

document-work v1.0.0

Add document-work skill

Moved in unchanged from ~/.claude/skills/document-work, which is now
a symlink into this repo (same pattern as scribe-mode).