Unable to control worker output directory with worker.rollupOptions

[yamacent]

Describe the bug

Specifying assetFileNames and chunkFileNames in worker.rollupOptions does not affect the worker's output directory.

How to reproduce

• open the reproduction link
• run npm run build

What is expected?

worker js file is generated under dist/worker/ directory.

What is actually happening?

worker js file is generated under dist/assets/ directory.

Reproduction

https://stackblitz.com/edit/vitejs-vite-tjouvf

System Info

https://stackblitz.com/edit/vitejs-vite-tjouvf

Used Package Manager

npm

Logs

No response

Validations

• Follow our Code of Conduct
• Read the Contributing Guidelines.
• Read the docs.
• Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.
• Make sure this is a Vite issue and not a framework-specific issue. For example, if it's a Vue SFC related bug, it should likely be reported to https://github.com/vuejs/core instead.
• Check that this is a concrete bug. For Q&A open a GitHub Discussion or join our Discord Chat Server.
• The provided reproduction is a minimal reproducible example of the bug.

[sapphi-red]

Related: #7613
#7804 seems to fix this too.