OpenRGB dedup fix, device card URL badge overflow fix

- Replace threshold-based dedup with exact equality check in OpenRGB client;
  threshold dedup caused animation stutter at low software brightness
- Add brightness_control capability to OpenRGB provider (software simulated)
- Fix device card URL/COM badge overlapping close button: badge stays inside
  card-title flex container, both name and badge truncate with ellipsis

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

server/src/wled_controller/static/css/cards.css

@@ -451,6 +451,15 @@ body.cs-drag-active .card-drag-handle {
     font-family: monospace;
     text-decoration: none;
     transition: background 0.2s;
+    white-space: nowrap;
+    flex-shrink: 1;
+    overflow: hidden;
+    min-width: 0;
+}
+
+.device-url-text {
+    overflow: hidden;
+    text-overflow: ellipsis;
 }
 
 .device-url-badge:hover {

server/src/wled_controller/static/js/features/devices.js

@@ -156,7 +156,7 @@ export function createDeviceCard(device) {
             <div class="card-header">
                 <div class="card-title" title="${escapeHtml(device.name || device.id)}">
                     <span class="health-dot ${healthClass}" title="${healthTitle}"></span>
-                    ${device.name || device.id}
+                    <span class="card-title-text">${device.name || device.id}</span>
                     ${device.url && device.url.startsWith('http') ? `<a class="device-url-badge" href="${device.url}" target="_blank" rel="noopener" title="${t('device.button.webui')}"><span class="device-url-text">${escapeHtml(device.url.replace(/^https?:\/\//, ''))}</span><span class="device-url-icon">${ICON_WEB}</span></a>` : (device.url && !device.url.startsWith('mock://') && !device.url.startsWith('ws://') && !device.url.startsWith('openrgb://') && !device.url.startsWith('http') ? `<span class="device-url-badge"><span class="device-url-text">${escapeHtml(device.url)}</span></span>` : '')}
                     ${healthLabel}
                 </div>