Release v0.22.2

What's Changed

UX

• Replace ⏩️ with ⏭️ across all scripts and README for structural empty states (zero aggregates) — semantic accuracy.

Maintenance

• Remove duplicate tool artifact .Jules/palette.md.
• Bump version to v0.22.2 (all scripts, VERSION, VERSION.txt).

Full Changelog: v0.22.1...v0.22.2