Monitor partner card: onboard phase indicator per remote host

vv_partner_state() now reads setup.db and adds onboard_phase (0/1/2/null)
to each host entry.

Partner card JS renders a badge under the hostname for remote hosts that
haven't completed Phase 2: amber "Awaiting onboard" (phase 1) or grey
"Not provisioned" (phase 0). Phase 2 complete shows nothing extra.

Plugin/unraid/include/monitor.php

@@ -20,6 +20,8 @@ function vv_partner_state(): array {
     $hostIds = array_filter(array_keys($vars), fn($k) => preg_match('/^HOST\d+$/', $k) && ($vars[$k] ?? '') !== '');
     sort($hostIds);
 
+    $setupDb = vv_setup_state_read();
+
     $hosts = [];
     foreach ($hostIds as $id) {
         $hostname = $vars[$id] ?? '';
@@ -27,13 +29,17 @@ function vv_partner_state(): array {
         $isMe    = strcasecmp($hostname, $myName) === 0;
         $isOwner = strcasecmp($id, $vars['PARTNERSHIP_OWNER_HOST'] ?? '') === 0;
         $online  = $isMe ? true : ($tsPeers[strtolower($hostname)] ?? null);
+        $onboardPhase = $isMe ? null
+            : (($setupDb[$id . '_PHASE2_DONE'] ?? '') === 'true' ? 2
+              : (($setupDb[$id . '_PHASE1_DONE'] ?? '') === 'true' ? 1 : 0));
         $hosts[] = [
-            'id'       => $id,
-            'hostname' => $hostname,
-            'owner'    => $vars[$id . '_OWNER'] ?? '',
-            'is_me'    => $isMe,
-            'is_owner' => $isOwner,
-            'online'   => $online,
+            'id'            => $id,
+            'hostname'      => $hostname,
+            'owner'         => $vars[$id . '_OWNER'] ?? '',
+            'is_me'         => $isMe,
+            'is_owner'      => $isOwner,
+            'online'        => $online,
+            'onboard_phase' => $onboardPhase,
         ];
     }