Deleting an asset leaves a broken file reference in sketch files

p5.js version

No response

What is your operating system?

Windows

Web browser and version

No response

Actual Behavior

When I delete an image or other asset from the Assets tab, it disappears from my assets list, but the filename still shows up in the sketch files sidebar. The file itself is gone, so the preview is broken.
Deleting the same file from the sketch files sidebar works correctly. The problem only happens when deleting from Assets.

Expected Behavior

Deleting an asset from the Assets tab should remove it from storage and from every sketch that references it, same as deleting it from sketch files.

Steps to reproduce

1. Open a sketch and upload an image.
2. Confirm the file appears in both the sketch files sidebar and the Assets tab.
3. Go to the Assets tab and delete that asset.
4. Open the sketch again and check the sketch files sidebar.

Start at the deletion entry point for the Assets tab and compare it with the working deletion flow in the sketch files sidebar. Trace how the asset is removed from storage and references are updated; done means deleting an asset removes it from the assets list and every sketch's file sidebar without leaving a broken preview.