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/Varaverk.page

@@ -0,0 +1,41 @@
+Menu="Tasks:95"
+Title="Varaverk"
+Icon="varaverk.png"
+---
+<?php
+$plugin  = 'varaverk';
+$docroot = $docroot ?? $_SERVER['DOCUMENT_ROOT'] ?: '/usr/local/emhttp';
+$pluginDir = "$docroot/plugins/$plugin";
+
+// Determine active tab
+$tab = $_GET['tab'] ?? 'monitor';
+$validTabs = ['monitor', 'scheduler', 'partnership', 'fallback', 'watchdog', 'arrs'];
+if (!in_array($tab, $validTabs)) $tab = 'monitor';
+$tabLabels = ['monitor' => 'Monitor', 'scheduler' => 'Scheduler', 'partnership' => 'Partnership', 'fallback' => 'FallBack', 'watchdog' => 'Watchdog', 'arrs' => 'Arrs'];
+?>
+
+<link rel="stylesheet" href="/plugins/<?=$plugin?>/css/varaverk.css">
+
+<div id="varaverk-wrap">
+
+  <!-- Tab bar -->
+  <div id="vv-tabs">
+    <?php foreach ($validTabs as $t): ?>
+      <a href="?tab=<?=$t?>" class="vv-tab<?= $t === $tab ? ' active' : '' ?>">
+        <?= $tabLabels[$t] ?? ucfirst($t) ?>
+      </a>
+    <?php endforeach; ?>
+  </div>
+
+  <!-- Tab content -->
+  <div id="vv-content">
+    <?php
+      $page = "$pluginDir/pages/$tab.php";
+      if (file_exists($page)) include $page;
+      else echo "<p>Page not found: $tab</p>";
+    ?>
+  </div>
+
+</div>
+
+<script src="/plugins/<?=$plugin?>/js/varaverk.js"></script>