Package Cooldown Smoke Test

https://github.com/cocktailpeanut/package-security-testunlistedupdated 4/1/2026, 1:38:22 AMindexed 4/1/2026, 1:47:32 AMOwner@cocktailpeanut

Verify Pinokio's default, strict, and disabled package cooldown behavior for npm/npx and uv/uvx.