feat(skill): add SKILL.md for AI agent CLI integration
Enables installation via: npx skills add t8y2/dbx --skill dbx
Teaches AI agents (Claude Code, Codex, Cursor, Hermes, etc.) how to:
- List connections (dbx connections list --json)
- Explore schemas (dbx schema list/describe)
- Run read-only queries (dbx query)
- Generate prompt context (dbx context)
Safety: read-only by default, write confirmation required,
CLI bypass explicitly forbidden.
Built with Google Agent Quality Flywheel (3 eval iterations).
Compatible with skills.sh ecosystem (71+ agents).
Co-authored-by: asdlem <asdlem@users.noreply.github.com>