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

public/admin/assets/css/intel.css

@@ -546,6 +546,58 @@
 
 .signal-regen-btn:hover { color: var(--foreground); background: var(--bg-subtle); }
 
+
+.signal-ref-event {
+  border-left: 2px solid var(--border);
+  padding: 2px 0 6px 8px;
+  margin-bottom: 8px;
+}
+
+.signal-ref-event-title {
+  font-size: 12px;
+  color: var(--foreground);
+  font-weight: 500;
+  display: flex;
+  justify-content: space-between;
+  gap: 8px;
+  align-items: baseline;
+}
+
+.signal-ref-articles {
+  padding-left: 14px;
+  margin: 4px 0 0;
+  font-size: 11.5px;
+  color: var(--muted);
+  line-height: 1.55;
+}
+
+.signal-ref-articles li {
+  margin-bottom: 2px;
+}
+
+.signal-ref-articles a {
+  color: var(--muted);
+  text-decoration: none;
+  border-bottom: 1px dashed var(--border);
+}
+
+.signal-ref-articles a:hover { color: var(--foreground); }
+
+.signal-ref-source {
+  margin-left: 6px;
+  font-size: 10.5px;
+  color: var(--muted-dark);
+  text-transform: uppercase;
+  letter-spacing: .04em;
+}
+
+.signal-ref-date {
+  font-size: 10.5px;
+  color: var(--muted-dark);
+  margin-left: 6px;
+  font-weight: 400;
+}
+
 .signal-empty {
   color: var(--muted-dark);
   font-size: 13px;