Replace Chromium with cog (WPE WebKit) for the kiosk browser. Cog is
purpose-built for embedded kiosk displays with a fraction of Chromium's
CPU and memory footprint on Pi hardware.
Add React Query `select` to SpoolBuddyLayout and SpoolBuddyDashboard
printer status queries so only `connected` is extracted. Temperature,
fan, and progress changes no longer trigger re-renders on every MQTT
tick.
Expand service/package stripping to disable pipewire audio stack, CUPS
printing, rpcbind, upower, polkit, accounts-daemon, xdg-desktop-portal,
and mpris-proxy. Add user-level service masking for pipewire/portals.
Update SSH update cache clearing to handle both WPE WebKit and legacy
Chromium cache paths.