Customer.io skill claims the generic `cli` name

[stephendolan]

cio skills install currently installs the Customer.io skill at ~/.agents/skills/cli. That generic name collides with unrelated CLI work - in my case, a ChartMogul CLI request loaded the Customer.io instructions.

Confirmed on cio 0.0.20:

$ cio skills install --global --target codex --dry-run --refresh
"skill":"cli"

The checked-in skill already uses cio. Could the hosted skill use that name too?