Supply chain attack alert: .github/setup.js

Our org GitHub just got compromised massively by a supply-chain attack. Vectors are

* Claude hooks

* Gemini hooks

* Cursor setup

* VScode tasks

It adds all of the above to execute node .github/setup.js, an obfuscated file.

Check infected: `rg --hidden --no-ignore 'node .github/setup.js`

It spreads by adding mimic'd skip-ci commits to open PRs which then get merged.

Payload is obfuscated, available on request.

If this is already a known one in the world, apologies, it hit us at around 10PM BST last night, the damage would have been incredible.

Still trying to identify the original source.