Most browsers (everything but Safari/WebKit) can't decode HEIC in <img> or
canvas, so picking an iPhone HEIC photo broke the preview and the crop editor,
and could reach the backend in a format it couldn't process. Convert HEIC/HEIF
to JPEG right after selection via heic2any (dynamically imported, browser-only).
- new util app/utils/convert-heic.ts: isHeic() detection (MIME or extension
when iOS reports no type) + convertHeicToJpeg()/convertHeicFiles(); never
throws — falls back to the original file on failure.
- wired into the product image picker (store.add.manual) and the store
logo picker (StoreForm).
- adds heic2any dependency.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
