feat: add http, snmp, docker plugins; new widgets and routes for traefik/unifi/ups

- Add HTTP monitor plugin: endpoint checking with status history, latency tracking, time-range views
- Add SNMP plugin: OID polling, device management, metric recording
- Add Docker plugin: container status, resource usage, widget
- Traefik: access log widget, request chart widget, expanded routes
- UniFi: clients widget, devices widget, expanded poll routes
- UPS: history widget, additional routes
- Update plugin index with new entries

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

unifi/templates/unifi/widget_clients.html

@@ -0,0 +1,42 @@
+{# unifi/widget_clients.html — dashboard widget: top active clients #}
+{% if not snapshot %}
+<div style="color:var(--text-muted);font-size:0.85rem;padding:0.5rem 0;">No client data yet.</div>
+{% else %}
+
+<div style="display:flex;gap:1rem;margin-bottom:0.75rem;flex-wrap:wrap;">
+  <div>
+    <span style="font-size:1.4rem;font-weight:700;line-height:1;">{{ snapshot.total_clients }}</span>
+    <span style="font-size:0.78rem;color:var(--text-muted);margin-left:0.25rem;">total</span>
+  </div>
+  <div>
+    <span style="font-size:1.4rem;font-weight:700;line-height:1;color:var(--accent);">{{ snapshot.wireless_clients }}</span>
+    <span style="font-size:0.78rem;color:var(--text-muted);margin-left:0.25rem;">wireless</span>
+  </div>
+  <div>
+    <span style="font-size:1.4rem;font-weight:700;line-height:1;color:var(--text-muted);">{{ snapshot.wired_clients }}</span>
+    <span style="font-size:0.78rem;color:var(--text-muted);margin-left:0.25rem;">wired</span>
+  </div>
+</div>
+
+{% if clients %}
+<div style="display:grid;gap:3px;">
+  {% for c in clients %}
+  <div style="display:flex;align-items:center;gap:0.5rem;font-size:0.82rem;padding:0.15rem 0;">
+    <span class="dot {% if c.type == 'wireless' %}dot-up{% else %}dot-dim{% endif %}"></span>
+    <span style="flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;">
+      {{ c.hostname or c.ip or c.mac }}
+    </span>
+    {% if c.tx_rate or c.rx_rate %}
+    <span style="font-size:0.75rem;color:var(--text-muted);font-family:ui-monospace,monospace;flex-shrink:0;">
+      {% if c.tx_rate %}↑{{ "%.0f" | format(c.tx_rate / 1000) }}k{% endif %}
+      {% if c.rx_rate %} ↓{{ "%.0f" | format(c.rx_rate / 1000) }}k{% endif %}
+    </span>
+    {% endif %}
+  </div>
+  {% endfor %}
+</div>
+{% else %}
+<div style="color:var(--text-muted);font-size:0.82rem;">No clients connected.</div>
+{% endif %}
+
+{% endif %}

unifi/templates/unifi/widget_devices.html

@@ -0,0 +1,36 @@
+{# unifi/widget_devices.html — dashboard widget: infrastructure devices #}
+{% if not devices %}
+<div style="color:var(--text-muted);font-size:0.85rem;padding:0.5rem 0;">
+  {% if type_filter != "all" %}No {{ type_filter }} devices found.{% else %}No devices found.{% endif %}
+</div>
+{% else %}
+
+{% set online = devices | selectattr("state", "equalto", 1) | list %}
+{% set offline = devices | rejectattr("state", "equalto", 1) | list %}
+
+<div style="display:flex;gap:1rem;margin-bottom:0.75rem;">
+  <div>
+    <span style="font-size:1.4rem;font-weight:700;line-height:1;color:var(--green);">{{ online | length }}</span>
+    <span style="font-size:0.78rem;color:var(--text-muted);margin-left:0.25rem;">online</span>
+  </div>
+  {% if offline %}
+  <div>
+    <span style="font-size:1.4rem;font-weight:700;line-height:1;color:var(--red);">{{ offline | length }}</span>
+    <span style="font-size:0.78rem;color:var(--text-muted);margin-left:0.25rem;">offline</span>
+  </div>
+  {% endif %}
+</div>
+
+<div style="display:grid;gap:3px;">
+  {% for d in devices %}
+  <div style="display:flex;align-items:center;gap:0.5rem;font-size:0.82rem;padding:0.15rem 0;">
+    <span class="dot {% if d.state == 1 %}dot-up{% else %}dot-down{% endif %}"></span>
+    <span style="flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;">
+      {{ d.name or d.mac }}
+    </span>
+    <span style="font-size:0.72rem;color:var(--text-dim);flex-shrink:0;">{{ d.model or d.device_type or "" }}</span>
+  </div>
+  {% endfor %}
+</div>
+
+{% endif %}