Feat: Grundquellen-Verwaltung und Kundenquellen-Übersicht

- Neuer Tab "Quellen" mit Sub-Tabs "Grundquellen" und "Kundenquellen"
- Grundquellen: CRUD (Erstellen, Bearbeiten, Löschen) - gilt für alle Monitore
- Kundenquellen: Übersicht aller tenant-spezifischen Quellen mit Org-Zuordnung
- Kundenquellen können zu Grundquellen befördert werden
- Suche/Filter in beiden Ansichten
- Sources-Router mit vollständiger API

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

src/static/dashboard.html

@@ -22,6 +22,7 @@
       <button class="nav-tab active" data-section="dashboard">Dashboard</button>
       <button class="nav-tab" data-section="orgs">Organisationen</button>
       <button class="nav-tab" data-section="licenses">Lizenzen</button>
+      <button class="nav-tab" data-section="sources">Quellen</button>
     </nav>
 
     <!-- Dashboard Section -->
@@ -193,6 +194,72 @@
     </div>
   </main>
 
+
+    <!-- Sources Section -->
+    <div class="section" id="sec-sources">
+      <div class="nav-tabs" id="sourceSubTabs">
+        <button class="nav-tab active" data-subtab="global-sources">Grundquellen</button>
+        <button class="nav-tab" data-subtab="tenant-sources">Kundenquellen</button>
+      </div>
+
+      <!-- Grundquellen -->
+      <div class="section active" id="sub-global-sources">
+        <div class="action-bar">
+          <div style="display:flex;align-items:center;gap:12px;">
+            <input type="text" class="search-input" id="globalSourceSearch" placeholder="Grundquelle suchen...">
+            <span class="text-secondary" id="globalSourceCount"></span>
+          </div>
+          <button class="btn btn-primary" id="newGlobalSourceBtn">+ Neue Grundquelle</button>
+        </div>
+        <div class="card">
+          <div class="table-wrap">
+            <table>
+              <thead>
+                <tr>
+                  <th>Name</th>
+                  <th>URL</th>
+                  <th>Domain</th>
+                  <th>Typ</th>
+                  <th>Kategorie</th>
+                  <th>Status</th>
+                  <th>Aktionen</th>
+                </tr>
+              </thead>
+              <tbody id="globalSourceTable"></tbody>
+            </table>
+          </div>
+        </div>
+      </div>
+
+      <!-- Kundenquellen -->
+      <div class="section" id="sub-tenant-sources">
+        <div class="action-bar">
+          <div style="display:flex;align-items:center;gap:12px;">
+            <input type="text" class="search-input" id="tenantSourceSearch" placeholder="Kundenquelle suchen...">
+            <span class="text-secondary" id="tenantSourceCount"></span>
+          </div>
+        </div>
+        <div class="card">
+          <div class="table-wrap">
+            <table>
+              <thead>
+                <tr>
+                  <th>Name</th>
+                  <th>Domain</th>
+                  <th>Typ</th>
+                  <th>Kategorie</th>
+                  <th>Organisation</th>
+                  <th>Hinzugefuegt von</th>
+                  <th>Aktionen</th>
+                </tr>
+              </thead>
+              <tbody id="tenantSourceTable"></tbody>
+            </table>
+          </div>
+        </div>
+      </div>
+    </div>
+
   <!-- Modal: New Organization -->
   <div class="modal-overlay" id="modalNewOrg">
     <div class="modal">
@@ -286,6 +353,74 @@
     </div>
   </div>
 
+
+  <!-- Modal: Source (Create/Edit) -->
+  <div class="modal-overlay" id="modalSource">
+    <div class="modal">
+      <div class="modal-header">
+        <h3 id="sourceModalTitle">Neue Grundquelle</h3>
+        <button class="modal-close" onclick="closeModal('modalSource')">&times;</button>
+      </div>
+      <form id="sourceForm">
+        <div class="modal-body">
+          <div class="form-group">
+            <label for="sourceName">Name</label>
+            <input type="text" id="sourceName" required>
+          </div>
+          <div class="form-group">
+            <label for="sourceUrl">Feed-URL</label>
+            <input type="url" id="sourceUrl" placeholder="https://...">
+          </div>
+          <div class="form-group">
+            <label for="sourceDomain">Domain</label>
+            <input type="text" id="sourceDomain" placeholder="z.B. tagesschau.de">
+          </div>
+          <div style="display:grid;grid-template-columns:1fr 1fr;gap:12px;">
+            <div class="form-group">
+              <label for="sourceType">Typ</label>
+              <select id="sourceType">
+                <option value="rss_feed">RSS-Feed</option>
+                <option value="web_source">Webquelle</option>
+                <option value="excluded">Gesperrt</option>
+              </select>
+            </div>
+            <div class="form-group">
+              <label for="sourceCategory">Kategorie</label>
+              <select id="sourceCategory">
+                <option value="nachrichtenagentur">Nachrichtenagentur</option>
+                <option value="oeffentlich-rechtlich">Oeffentlich-Rechtlich</option>
+                <option value="qualitaetszeitung">Qualitaetszeitung</option>
+                <option value="behoerde">Behoerde</option>
+                <option value="fachmedien">Fachmedien</option>
+                <option value="think-tank">Think-Tank</option>
+                <option value="international">International</option>
+                <option value="regional">Regional</option>
+                <option value="boulevard">Boulevard</option>
+                <option value="sonstige" selected>Sonstige</option>
+              </select>
+            </div>
+          </div>
+          <div class="form-group">
+            <label for="sourceStatus">Status</label>
+            <select id="sourceStatus">
+              <option value="active">Aktiv</option>
+              <option value="inactive">Inaktiv</option>
+            </select>
+          </div>
+          <div class="form-group">
+            <label for="sourceNotes">Notizen</label>
+            <input type="text" id="sourceNotes" placeholder="Optional">
+          </div>
+          <div id="sourceError" class="error-msg" style="display:none"></div>
+        </div>
+        <div class="modal-footer">
+          <button type="button" class="btn btn-secondary" onclick="closeModal('modalSource')">Abbrechen</button>
+          <button type="submit" class="btn btn-primary">Speichern</button>
+        </div>
+      </form>
+    </div>
+  </div>
+
   <!-- Modal: Confirm -->
   <div class="modal-overlay" id="modalConfirm">
     <div class="modal" style="max-width: 400px;">
@@ -304,5 +439,6 @@
   </div>
 
   <script src="/static/js/app.js"></script>
+  <script src="/static/js/sources.js"></script>
 </body>
 </html>