Two of the three things from #821:
- HEIC/HEIF (iPhone) can now be enabled. Sharp's bundled libvips decodes `heif`
input (verified: sharp.format.heif.input.file === true on 0.34.3 / libvips
8.17.1), so thumbnails generate. Added heic/heif to EXTENSION_TO_MIME in both
the backend (uploadSettings.js) and the frontend (fileTypes.ts) maps, which
are kept in sync. (iOS Safari usually transcodes HEIC→JPEG at file selection,
but a genuine .heic upload is now handled when it arrives.)
- The upload requirements hint no longer hardcodes "JPEG, PNG or WebP". New
extensionsToLabel() renders the actually-configured, supported formats (e.g.
"JPG, PNG, WEBP, MOV"), and upload.fileRequirements interpolates {{formats}}
across all 8 locales. Unsupported extensions are dropped from the label so it
never advertises a format the backend would reject.
DNG / camera RAW is deliberately NOT included: Sharp's libvips has no raw loader,
so a DNG would upload then fail thumbnailing (photo → 'failed', no preview).
Proper RAW support (embedded-preview extraction) is a separate PR.
Adds vitest coverage for extensionsToLabel + the HEIC mapping.
Paul Nothaft
2b5b23b96f