admin had sub-system folders (config/overview/system/ssh/peers) AND a bare
root css/ (admin.css) — inconsistent. A component's shared base belongs in a
core/ sub-folder once it has sub-systems (matching apps/core/), so admin.css
moves to admin/core/css/admin.css. Audit confirms all components are now
consistent: sub-system components (apps, admin) use core/ + sub-systems;
single-page components (backup/dashboard/tasks/updater) stay flat js/css/html
(no sub-systems, so no core/ needed).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Signed-off-by: librelad <librelad@digitalangels.vip>
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