- Remove Restart Web, Restart PHP-FPM, Shutdown, Reboot buttons
- Remove runServerAction() library method and action() controller
- Remove /system-ops/action route (no longer needed)
- Parse /proc/mdstat into structured array (name, level, health, drives)
- Show each RAID array as a card with colored drive icons per-slot
- Green drive = healthy, red = failed, blue = spare
- Show rebuild progress bar when array is rebuilding
- Internet status shown as colored badge with wifi icon
- Services shown as colored badges (green=running, grey=other)