Varaverk: FallBack + Watchdog tabs; plugin path restructure to Plugin/unraid/

- FallBack tab: per-node tier inventory + active fallback card with duration, tier, handback strikes, running container status
- Watchdog tab: live system health (RAM bar + thresholds, load, uptime, daemon), docker watchdog strikes + skip list + restart history, stability strikes + reboot log, resource pressure alert card, config inventory (mem limits, required, pause/stop lists)
- Swapped partnership/arrs tab order; FallBack between partnership and watchdog
- Plugin source tree moved from Plugin/usr/local/emhttp/plugins/varaverk/ to Plugin/unraid/
- Deployment/ conf templates added

Plugin/unraid/event/disks_mounted/rebuild_cron

@@ -0,0 +1,9 @@
+#!/bin/bash
+# Register plugin with Unraid's cron system and rebuild cron entries after every boot.
+# /var/log/plugins/ and /etc/cron.d/ are RAM-based and wiped on reboot.
+cp /boot/config/plugins/varaverk.plg /var/log/plugins/varaverk.plg 2>/dev/null
+php -r "
+require_once '/usr/local/emhttp/plugins/varaverk/include/scheduler.php';
+\$schedule = vv_schedule_load();
+if (\$schedule) vv_cron_rebuild(\$schedule);
+" 2>/dev/null