TDS polish: lt-frame tables, links search toolbar, dead CSS cleanup

- index.html: wrap UniFi devices table in lt-frame with section header
- links.html: add static lt-toolbar with lt-search filter and collapse
  controls above the dynamic container; remove collapse bar from
  renderLinks() since it's now static; add applyLinksSearch() to
  filter host/switch panels by name as user types
- suppressions.html: wrap Available Targets section in lt-frame
- style.css: remove unused .link-summary-panel and related rules
  (replaced by lt-stats-grid in previous commit)

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

templates/index.html

@@ -270,44 +270,49 @@
   <div class="g-section-header">
     <h2 class="g-section-title">UniFi Devices</h2>
   </div>
-  <div class="lt-table-wrap">
-    <table class="lt-table" id="unifi-table">
-      <caption class="lt-sr-only">UniFi network devices</caption>
-      <thead>
-        <tr>
-          <th>Status</th>
-          <th>Name</th>
-          <th>Type</th>
-          <th>Model</th>
-          <th>IP</th>
-          <th>Actions</th>
-        </tr>
-      </thead>
-      <tbody>
-        {% for d in snapshot.unifi %}
-        <tr class="{% if not d.connected %}row-critical{% endif %}">
-          <td>
-            <span class="dot-{{ 'up' if d.connected else 'down' }}"></span>
-            {{ 'ONLINE' if d.connected else 'OFFLINE' }}
-          </td>
-          <td><strong>{{ d.name }}</strong></td>
-          <td>{{ d.type }}</td>
-          <td>{{ d.model }}</td>
-          <td>{{ d.ip }}</td>
-          <td>
-            {% if not d.connected %}
-            <button class="lt-btn lt-btn-ghost lt-btn-sm btn-suppress"
-                    data-sup-type="unifi_device"
-                    data-sup-name="{{ d.name }}"
-                    data-sup-detail="">
-              🔕 Suppress
-            </button>
-            {% endif %}
-          </td>
-        </tr>
-        {% endfor %}
-      </tbody>
-    </table>
+  <div class="lt-frame">
+    <span class="lt-frame-bl">&#x255A;</span>
+    <span class="lt-frame-br">&#x255D;</span>
+    <div class="lt-section-header">Device Inventory</div>
+    <div class="lt-table-wrap">
+      <table class="lt-table" id="unifi-table">
+        <caption class="lt-sr-only">UniFi network devices</caption>
+        <thead>
+          <tr>
+            <th>Status</th>
+            <th>Name</th>
+            <th>Type</th>
+            <th>Model</th>
+            <th>IP</th>
+            <th>Actions</th>
+          </tr>
+        </thead>
+        <tbody>
+          {% for d in snapshot.unifi %}
+          <tr class="{% if not d.connected %}row-critical{% endif %}">
+            <td>
+              <span class="dot-{{ 'up' if d.connected else 'down' }}"></span>
+              {{ 'ONLINE' if d.connected else 'OFFLINE' }}
+            </td>
+            <td><strong>{{ d.name }}</strong></td>
+            <td>{{ d.type }}</td>
+            <td>{{ d.model }}</td>
+            <td>{{ d.ip }}</td>
+            <td>
+              {% if not d.connected %}
+              <button class="lt-btn lt-btn-ghost lt-btn-sm btn-suppress"
+                      data-sup-type="unifi_device"
+                      data-sup-name="{{ d.name }}"
+                      data-sup-detail="">
+                🔕 Suppress
+              </button>
+              {% endif %}
+            </td>
+          </tr>
+          {% endfor %}
+        </tbody>
+      </table>
+    </div>
   </div>
 </section>
 {% endif %}