plugins: persist owner chip in glance strip across JS updates

Store owner in data-owner attribute; updateHostHeader always prepends it
so it survives innerHTML replacement. Render it immediately on page load
before JS fetches plugin data.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

hbd/server/templates/plugins.html

@@ -416,11 +416,9 @@
               <span class="host-name">{{ host.name }}</span>
             </div>
 
-            <div class="glance-strip" id="glance-{{ host.name }}">
+            <div class="glance-strip" id="glance-{{ host.name }}" data-owner="{{ host.owner or '' }}">
+              {% if current_user and current_user.admin and host.owner %}<span class="glance-chip neutral">{{ host.owner }}</span>{% endif %}
               <span class="glance-loading">—</span>
-              {% if current_user and current_user.admin and host.owner %}
-              <span class="glance-chip neutral">{{ host.owner }}</span>
-              {% endif %}
             </div>
 
             <div class="host-right">
@@ -483,6 +481,7 @@
       const GLANCE_PLUGINS = ['cpu_monitor','memory_monitor','disk_monitor',
                               'network_monitor','nagios_runner','os_info'];
       const SKIP_FIELDS = new Set(['id','name']);
+      const CURRENT_USER_ADMIN = {{ 'true' if current_user and current_user.admin else 'false' }};
 
       // ── Cache ───────────────────────────────────────────────────────────────
 
@@ -561,6 +560,12 @@
 
         const chips = [];
 
+        // Owner (admin only, static from server)
+        const owner = strip.dataset.owner;
+        if (CURRENT_USER_ADMIN && owner) {
+          chips.push(`<span class="glance-chip neutral">${owner}</span>`);
+        }
+
         // CPU
         const cpu = getCache(hostname, 'cpu_monitor');
         if (cpu) {