Unify value source icons across dropdowns and card badges

Extract getValueSourceIcon() into value-sources.js and use it for
brightness source dropdowns and card badges in both LED and KC targets.
Icons now match value source cards: 📊 static, 🔄 animated, 🎵 audio,
🕐 adaptive_time, 🌤️ adaptive_scene.

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

server/src/wled_controller/static/js/features/kc-targets.js

@@ -14,6 +14,7 @@ import { API_BASE, getHeaders, fetchWithAuth, escapeHtml } from '../core/api.js'
 import { t } from '../core/i18n.js';
 import { lockBody, showToast, showConfirm, formatUptime } from '../core/ui.js';
 import { Modal } from '../core/modal.js';
+import { getValueSourceIcon } from './value-sources.js';
 
 class KCEditorModal extends Modal {
     constructor() {
@@ -81,7 +82,7 @@ export function createKCTargetCard(target, sourceMap, patternTemplateMap, valueS
                 <span class="stream-card-prop" title="${t('kc.pattern_template')}">📄 ${escapeHtml(patternName)}</span>
                 <span class="stream-card-prop">▭ ${rectCount} rect${rectCount !== 1 ? 's' : ''}</span>
                 <span class="stream-card-prop" title="${t('kc.fps')}">⚡ ${kcSettings.fps ?? 10}</span>
-                ${bvs ? `<span class="stream-card-prop stream-card-prop-full" title="${t('targets.brightness_vs')}">🔆 ${escapeHtml(bvs.name)}</span>` : ''}
+                ${bvs ? `<span class="stream-card-prop stream-card-prop-full" title="${t('targets.brightness_vs')}">${getValueSourceIcon(bvs.source_type)} ${escapeHtml(bvs.name)}</span>` : ''}
             </div>
             <div class="brightness-control" data-kc-brightness-wrap="${target.id}">
                 <input type="range" class="brightness-slider" min="0" max="255"
@@ -363,9 +364,10 @@ function _populateKCBrightnessVsDropdown(selectedId = '') {
     // Keep the first "None" option, remove the rest
     while (sel.options.length > 1) sel.remove(1);
     _cachedValueSources.forEach(vs => {
+        const icon = getValueSourceIcon(vs.source_type);
         const opt = document.createElement('option');
         opt.value = vs.id;
-        opt.textContent = `🔢 ${vs.name}`;
+        opt.textContent = `${icon} ${vs.name}`;
         sel.appendChild(opt);
     });
     sel.value = selectedId || '';