feat(sources): UI fuer Quellen-Klassifikation (Filter, Badges, Edit-Form)

- Quellen-Modal: 4 neue Filter (Politik, Medientyp, Reliability, Alignment).
- Edit-Form: Selects fuer political_orientation/media_type/reliability,
  Multi-Select-Chips fuer alignments, Toggle state_affiliated, Country-Code-Input.
- renderSourceGroup: Politik-Badge mit DACH-Farbskala (rot=L, blau=R),
  Reliability-Punkt (gruen→rot), Alignment-Tags, state-affiliated-Indikator.
  Tooltip um alle 4 Achsen erweitert.
- CSS-Block fuer alle neuen Badge-/Chip-Styles.

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

src/static/js/app.js

@@ -2750,6 +2750,10 @@ async handleRefresh() {
         // Filter anwenden
         const typeFilter = document.getElementById('sources-filter-type')?.value || '';
         const catFilter = document.getElementById('sources-filter-category')?.value || '';
+        const politicalFilter = document.getElementById('sources-filter-political')?.value || '';
+        const mediaTypeFilter = document.getElementById('sources-filter-mediatype')?.value || '';
+        const reliabilityFilter = document.getElementById('sources-filter-reliability')?.value || '';
+        const alignmentFilter = document.getElementById('sources-filter-alignment')?.value || '';
         const search = (document.getElementById('sources-search')?.value || '').toLowerCase();
 
         // Alle Quellen nach Domain gruppieren
@@ -2800,6 +2804,20 @@ async handleRefresh() {
                 if (!hasMatchingCat) continue;
             }
 
+            // Klassifikations-Filter
+            if (politicalFilter) {
+                if (!feeds.some(f => (f.political_orientation || 'na') === politicalFilter)) continue;
+            }
+            if (mediaTypeFilter) {
+                if (!feeds.some(f => (f.media_type || 'sonstige') === mediaTypeFilter)) continue;
+            }
+            if (reliabilityFilter) {
+                if (!feeds.some(f => (f.reliability || 'na') === reliabilityFilter)) continue;
+            }
+            if (alignmentFilter) {
+                if (!feeds.some(f => Array.isArray(f.alignments) && f.alignments.includes(alignmentFilter))) continue;
+            }
+
             // Suche
             if (search) {
                 const groupText = feeds.map(f =>
@@ -3054,6 +3072,13 @@ async handleRefresh() {
             document.getElementById('src-discover-btn').disabled = false;
             document.getElementById('src-discover-btn').textContent = 'Erkennen';
             document.getElementById('src-type-select').value = 'rss_feed';
+            // Klassifikations-Felder auf Default zurücksetzen
+            const polEl = document.getElementById('src-political'); if (polEl) polEl.value = 'na';
+            const mtEl = document.getElementById('src-mediatype'); if (mtEl) mtEl.value = 'sonstige';
+            const relEl = document.getElementById('src-reliability'); if (relEl) relEl.value = 'na';
+            const ccEl = document.getElementById('src-country'); if (ccEl) ccEl.value = '';
+            const saEl = document.getElementById('src-state-affiliated'); if (saEl) saEl.checked = false;
+            this._setAlignmentChips([]);
             // Save-Button Text zurücksetzen
             const saveBtn = document.querySelector('#src-discovery-result .sources-discovery-actions .btn-primary');
             if (saveBtn) saveBtn.textContent = 'Speichern';
@@ -3235,6 +3260,19 @@ async handleRefresh() {
             rss_url: source.url,
         };
 
+        // Klassifikations-Felder setzen
+        const polEl = document.getElementById('src-political');
+        if (polEl) polEl.value = source.political_orientation || 'na';
+        const mtEl = document.getElementById('src-mediatype');
+        if (mtEl) mtEl.value = source.media_type || 'sonstige';
+        const relEl = document.getElementById('src-reliability');
+        if (relEl) relEl.value = source.reliability || 'na';
+        const ccEl = document.getElementById('src-country');
+        if (ccEl) ccEl.value = source.country_code || '';
+        const saEl = document.getElementById('src-state-affiliated');
+        if (saEl) saEl.checked = !!source.state_affiliated;
+        this._setAlignmentChips(source.alignments || []);
+
         // Submit-Button-Text ändern
         const saveBtn = document.querySelector('#src-discovery-result .sources-discovery-actions .btn-primary');
         if (saveBtn) saveBtn.textContent = 'Quelle speichern';
@@ -3243,6 +3281,27 @@ async handleRefresh() {
         if (form) form.scrollIntoView({ behavior: 'smooth', block: 'start' });
     },
 
+    _setAlignmentChips(active) {
+        const chips = document.querySelectorAll('#src-alignments-chips .alignment-chip');
+        const set = new Set((active || []).map(a => (a || '').toLowerCase()));
+        chips.forEach(chip => {
+            if (set.has(chip.dataset.alignment)) chip.classList.add('active');
+            else chip.classList.remove('active');
+        });
+    },
+
+    _getAlignmentChips() {
+        return Array.from(document.querySelectorAll('#src-alignments-chips .alignment-chip.active'))
+            .map(chip => chip.dataset.alignment);
+    },
+
+    handleAlignmentChipClick(e) {
+        const chip = e.target.closest('.alignment-chip');
+        if (!chip) return;
+        e.preventDefault();
+        chip.classList.toggle('active');
+    },
+
     async saveSource() {
         const name = document.getElementById('src-name').value.trim();
         if (!name) {
@@ -3258,6 +3317,12 @@ async handleRefresh() {
             url: discovered.rss_url || (discovered.source_type === 'telegram_channel' ? (document.getElementById('src-domain').value || null) : null),
             domain: document.getElementById('src-domain').value.trim() || discovered.domain || null,
             notes: document.getElementById('src-notes').value.trim() || null,
+            political_orientation: document.getElementById('src-political')?.value || 'na',
+            media_type: document.getElementById('src-mediatype')?.value || 'sonstige',
+            reliability: document.getElementById('src-reliability')?.value || 'na',
+            country_code: (document.getElementById('src-country')?.value || '').trim().toUpperCase() || null,
+            state_affiliated: !!document.getElementById('src-state-affiliated')?.checked,
+            alignments: this._getAlignmentChips(),
         };
 
         if (!data.domain && discovered.domain) {