Initial commit: Homelab Dashboard with YAML configuration

Features:
- Service health monitoring with response times
- Proxmox cluster integration (nodes, VMs, containers)
- PBS backup server monitoring
- Camera viewer with WebRTC (go2rtc)
- Docker container monitoring
- Uptime Kuma integration
- Mobile-friendly responsive design
- YAML-based configuration for easy setup

app/templates/partials/pbs.html

@@ -0,0 +1,31 @@
+<div class="card rounded-lg p-3">
+    {% if pbs.status == 'online' %}
+    <div class="flex items-center justify-between mb-2">
+        <span class="text-xs text-emerald-400">Online</span>
+        {% if pbs.last_backup %}
+        <span class="text-xs text-gray-500">Last: {{ pbs.last_backup }}</span>
+        {% endif %}
+    </div>
+    {% if pbs.datastore_usage %}
+    <div class="space-y-2">
+        {% for ds in pbs.datastore_usage %}
+        <div>
+            <div class="flex items-center justify-between text-xs mb-1">
+                <span class="text-gray-300">{{ ds.name }}</span>
+                <span class="text-gray-500">{{ ds.used_gb }}/{{ ds.total_gb }}GB</span>
+            </div>
+            <div class="progress-bar">
+                <div class="progress-fill {% if ds.percent > 85 %}bg-red-500{% elif ds.percent > 70 %}bg-amber-500{% else %}bg-orange-500{% endif %}" style="width: {{ ds.percent }}%"></div>
+            </div>
+        </div>
+        {% endfor %}
+    </div>
+    {% endif %}
+    {% else %}
+    <div class="flex items-center gap-2 text-gray-500 text-xs">
+        <svg class="w-4 h-4 text-red-400" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M12 9v2m0 4h.01m-6.938 4h13.856c1.54 0 2.502-1.667 1.732-3L13.732 4c-.77-1.333-2.694-1.333-3.464 0L3.34 16c-.77 1.333.192 3 1.732 3z"/></svg>
+        <span>PBS Offline</span>
+    </div>
+    {% endif %}
+    <a href="https://192.168.1.159:8007" target="_blank" class="block text-center text-xs text-gray-500 hover:text-orange-400 mt-2">Open PBS</a>
+</div>