feat(sources): Quellenuebersicht nach Quellentyp filterbar

Der Typ-Filter im Quellen-Modal kennt jetzt auch podcast_feed, damit
alle Quellentypen (RSS, Web, Telegram, X, Podcast) filterbar sind.
Zusaetzlich zeigt jede Quelle ein korrektes Typ-Badge -- vorher zeigten
Telegram, X und Podcast faelschlich "Web".

- podcast_feed im sources-filter-type-Dropdown
- _sourceTypeLabel-Helfer, korrekte Typ-Badges im Gruppen-Header und in
  den Feed-Zeilen, x_account im Info-Tooltip-typeMap

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/static/dashboard.html

@@ -492,6 +492,7 @@
                             <option value="web_source">Web-Quelle</option>
                             <option value="telegram_channel">Telegram</option>
                             <option value="x_account">X (Twitter)</option>
+                            <option value="podcast_feed">Podcast</option>
                             <option value="excluded">Von mir ausgeschlossen</option>
                         </select>
                         <label for="sources-filter-category" class="sr-only" data-i18n="sources_modal.filter.category">Kategorie filtern</label>
@@ -806,7 +807,7 @@
     <script src="/static/js/i18n.js?v=20260513a"></script>
     <script src="/static/js/api.js?v=20260423a"></script>
     <script src="/static/js/ws.js?v=20260316b"></script>
-    <script src="/static/js/components.js?v=20260522a"></script>
+    <script src="/static/js/components.js?v=20260522b"></script>
     <script src="/static/js/layout.js?v=20260513f"></script>
     <script src="/static/js/pipeline.js?v=20260513d"></script>
     <script src="/static/js/app.js?v=20260522a"></script>

src/static/js/components.js

@@ -1210,6 +1210,10 @@ const UI = {
     /**
      * Domain-Gruppe rendern (aufklappbar mit Feeds).
      */
+    _sourceTypeLabel(type) {
+        return ({ rss_feed: 'RSS', web_source: 'Web', telegram_channel: 'Telegram', x_account: 'X', podcast_feed: 'Podcast', excluded: 'Ausgeschlossen' })[type] || 'Web';
+    },
+
     renderSourceGroup(domain, feeds, isExcluded, excludedNotes, isGlobal) {
         const catLabel = this._categoryLabels[feeds[0]?.category] || feeds[0]?.category || '';
         const feedCount = feeds.filter(f => f.source_type !== 'excluded').length;
@@ -1244,7 +1248,7 @@ const UI = {
             realFeeds.forEach((feed, i) => {
                 const isLast = i === realFeeds.length - 1;
                 const connector = isLast ? '\u2514\u2500' : '\u251C\u2500';
-                const typeLabel = feed.source_type === 'rss_feed' ? 'RSS' : 'Web';
+                const typeLabel = this._sourceTypeLabel(feed.source_type);
                 const urlDisplay = feed.url ? this._shortenUrl(feed.url) : '';
                 feedRows += `<div class="source-feed-row">
                     <span class="source-feed-connector">${connector}</span>
@@ -1273,7 +1277,7 @@ const UI = {
             || firstFeed.country_code
             || (Array.isArray(firstFeed.alignments) && firstFeed.alignments.length > 0);
         if (hasInfo) {
-            const typeMap = { rss_feed: 'RSS-Feed', web_source: 'Web-Quelle', telegram_channel: 'Telegram-Kanal', podcast_feed: 'Podcast' };
+            const typeMap = { rss_feed: 'RSS-Feed', web_source: 'Web-Quelle', telegram_channel: 'Telegram-Kanal', x_account: 'X (Twitter)', podcast_feed: 'Podcast' };
             const lines = [];
             lines.push('Typ: ' + (typeMap[firstFeed.source_type] || firstFeed.source_type || 'Unbekannt'));
             if (firstFeed.language) lines.push('Sprache: ' + firstFeed.language);
@@ -1314,6 +1318,7 @@ const UI = {
                 <div class="source-group-info">
                     <span class="source-group-name">${this.escape(displayName)}</span>${infoButtonHtml}
                 </div>
+                ${!hasMultiple ? `<span class="source-type-badge type-${feeds[0]?.source_type || ''}">${this._sourceTypeLabel(feeds[0]?.source_type)}</span>` : ''}
                 <span class="source-category-badge cat-${feeds[0]?.category || 'sonstige'}">${catLabel}</span>
                 ${classificationBadges ? `<span class="source-classification-badges">${classificationBadges}</span>` : ''}
                 ${feedCountBadge}