UnoCSS version

66.6.7

Describe the bug

Seems like something happened to setAssetSource() that was added with #5133 . Not too sure why, probably an upstream bug, but creating an issue here so I remember it.

Reproduction

https://github.com/henrikvilhelmberglund/unocss-repro-safelist-5154

Change
"vite": "^7.0.0"
to
"vite": "^8.0.0"

1. nr build
2. Error
   Expected: no error

System Info

No response

Validations

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• The provided reproduction is a minimal reproducible example of the bug.