Public biigle.de frontend broken – missing JS asset (404) #1423

On the public instance https://biigle.de, the main frontend JavaScript bundle fails to load:

GET https://biigle.de/build/assets/main-Db2sWqgM.js 404 (Not Found)
Uncaught ReferenceError: biigle is not defined

As a result, no image or video volumes load at all.
Reproduced on multiple browsers and devices.
This looks like a broken or incomplete frontend deployment / static asset sync issue.