Playground: "Can't find variable: process" for Format

:wave: I'm seeing this error when clicking the Format button in the playground:

<img width="1408" height="315" alt="Image" src="https://github.com/user-attachments/assets/3627982d-876d-4650-8e09-c8615e9525fc" />

https://herb-tools.dev/playground?tab=format#BYUwNmD2AEDukCcwBMg