refactor admin navigation; update links to ingest pages and improve loading of data in parallel

public/admin/pages/intelligence/graph.html

@@ -14,10 +14,9 @@
 <header class="app-header">
   <h1>Duriin <span>Admin</span></h1>
   <nav class="tabs">
-    <a href="/admin/articles">Articles</a>
-    <a href="/admin/events">Events</a>
-    <a href="/admin/stats">Stats</a>
+    <a href="/admin/ingest">Ingest</a>
     <a href="/admin/intelligence" class="active">Intelligence</a>
+    <a href="/admin/stats">Stats</a>
     <a href="/admin/sql">SQL</a>
   </nav>
 </header>
@@ -73,7 +72,7 @@
 
 <div id="toast"><span class="toast-dot"></span><span id="toast-msg"></span></div>
 
-<script src="https://cdn.jsdelivr.net/npm/d3@7/dist/d3.min.js"></script>
+<script src="/admin/assets/js/d3.min.js"></script>
 <script src="/admin/assets/js/app.js"></script>
 <script src="/admin/assets/js/intel-shared.js"></script>
 <script src="/admin/assets/js/intel-graph.js"></script>