The slideshow JWT reuses type:'gallery', so verifyGalleryAccess accepts it on
every gallery route — a leaked projector link could download (single/all/
selected), upload (when allow_user_uploads), or post feedback for up to ~12h,
beyond its display-only contract. Add a `denySlideshowToken` middleware (403
when req.accessLevel==='slideshow') after verifyGalleryAccess on those 5 routes.
The photo-display routes (/photos, photo/thumbnail/preview/hero) stay open — the
kiosk needs them. +4 tests mint a real slideshow JWT and assert 403. Docs note
that Regenerate/Disable isn't instant revocation (~12h) and the feature flag is
the hard cut-off.
Luca
e36b3309ca