## Summary
Fix flaky `no_workflow.webp` screenshot test by waiting for async upload
and `/view` response before asserting.
## Changes
- **What**: In `loadWorkflowInMedia.spec.ts`, added `waitForUpload:
true` for `no_workflow.webp` and a `waitForResponse` call for the
`/view` endpoint. This ensures the error toast (from the 500 response)
is consistently visible before the screenshot assertion.
## Review Focus
The fix is scoped to `no_workflow.webp` only (via a `filesWithUpload`
Set) since it's the only test file that triggers an upload + `/view`
call. Other media files embed workflows and don't hit this path.
Fixes#9450
┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-9458-test-fix-flaky-no_workflow-webp-screenshot-test-31b6d73d365081b88deaee91769baec1)
by [Unito](https://www.unito.io)
---------
Co-authored-by: GitHub Action <action@github.com>
Co-authored-by: Alexander Brown <drjkl@comfy.org>
e2cb3560cc