Verified-dead assets from the feng-shui audit, zero consumers:
- core/icons/categories/utils.svg — no 'utils' app category exists (the only
'utils' refs are unrelated system health-check names); category icons are
requested as /core/icons/categories/<id>.svg and no id is 'utils'.
- core/icons/apps/portainer.svg — Portainer was retired to
scripts/unused/OLD_CONTAINERS/; no live containers/portainer/, and apps.json
is generated only from live containers, so the icon is never requested.
Both git-recoverable if a portainer app / utils category is ever (re)added.
Signed-off-by: librelad <librelad@digitalangels.vip>