Add container summary on card face, fix df parsing for wrapped lines, collect OS info, faster startup and refresh

app/templates/index.html

@@ -63,6 +63,8 @@
                         </div>
                         {% endif %}
 
+                        {% set containers = d.get('container', []) if d.get('container') else [] %}
+
                         {% if server.is_online %}
                         <div class="usage-bars">
                             <div class="usage-row">
@@ -96,6 +98,20 @@
                             </div>
                             {% endif %}
                         </div>
+                        {% if containers %}
+                        <div class="ct-summary-list">
+                            {% for ct in containers %}
+                            {% set ct_up = ct.get('status', '')|lower in ['running', 'started'] %}
+                            <div class="ct-summary-item">
+                                <span class="status-dot-sm {% if ct_up %}online{% else %}offline{% endif %}"></span>
+                                <span class="ct-summary-name">{{ ct.get('name', ct.get('id', '?')) }}</span>
+                                {% if ct.get('os') %}<span class="ct-summary-os">{{ ct.get('os') }}</span>{% endif %}
+                                {% if ct.get('ip') %}<span class="ct-summary-ip">{{ ct.get('ip') }}</span>{% endif %}
+                            </div>
+                            {% endfor %}
+                        </div>
+                        {% endif %}
+
                         {% else %}
                         <div class="offline-label">Unreachable</div>
                         {% endif %}
@@ -254,7 +270,6 @@
                             </div>
 
                             <!-- Containers / VMs -->
-                            {% set containers = d.get('container', []) if d.get('container') else [] %}
                             {% if containers %}
                             <div class="detail-section wide">
                                 <h4>Containers &amp; VMs</h4>
@@ -396,16 +411,10 @@
         if (card) toggleDetails(card);
     }
 
-    // Auto-refresh without full page reload if a card is expanded,
-    // otherwise do a simple reload
-    setInterval(function() {
-        if (document.querySelector('.server-card.expanded')) {
-            // A card is open - reload page preserving hash
-            location.reload();
-        } else {
-            location.reload();
-        }
-    }, 60000);
+    // If no servers have data yet, refresh quickly; otherwise every 60s
+    const hasData = document.querySelectorAll('.server-card').length > 0;
+    const refreshMs = hasData ? 60000 : 5000;
+    setInterval(function() { location.reload(); }, refreshMs);
 
     // Restore state on load
     restoreExpanded();