"Upload folder" silently did nothing: the directory-selection attribute
was set on the hidden <input> via a JSX spread
({...{webkitdirectory:"", directory:""}}), which React doesn't reliably
apply to the DOM — and if isAdmin resolves after first render, a one-shot
effect would miss the input mounting entirely. Without the attribute the
picker is a plain file picker where no folder can be selected, so the user
picks nothing and nothing happens.
- Set webkitdirectory/directory/mozdirectory imperatively through a
callback ref, which runs whenever the input mounts. folderInput is now a
MutableRefObject so the callback can populate it.
- Folder upload now shows the progress bar immediately on start (small
files can finish before the browser emits any upload-progress event, so
don't wait for the first one to render feedback).
Frontend-only; all 3 images rebuilt+pushed 0.37.4.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
