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

public/admin/pages/intelligence/signals.html

@@ -43,6 +43,62 @@
 
 </main>
 
+
+<!-- signal detail modal — two-column layout, opened via card click -->
+<div class="overlay" id="signalOverlay">
+  <div class="modal signal-modal">
+
+    <div class="signal-modal-head">
+      <div>
+        <div id="signal-modal-company" class="signal-modal-company"></div>
+        <div id="signal-modal-ticker"  class="signal-modal-ticker"></div>
+      </div>
+      <span id="signal-modal-badge" class="signal-badge"></span>
+    </div>
+
+    <div id="signal-modal-tags" class="signal-modal-tags"></div>
+
+    <div class="signal-modal-body">
+
+      <div class="signal-modal-col signal-modal-col-main">
+        <section class="signal-modal-section">
+          <div class="signal-detail-label">Summary</div>
+          <p id="signal-modal-summary"></p>
+        </section>
+
+        <section class="signal-modal-section" id="signal-modal-drivers-wrap">
+          <div class="signal-detail-label">Key drivers</div>
+          <ul id="signal-modal-drivers"></ul>
+        </section>
+
+        <section class="signal-modal-section" id="signal-modal-risks-wrap">
+          <div class="signal-detail-label">Risk factors</div>
+          <ul id="signal-modal-risks"></ul>
+        </section>
+
+        <section class="signal-modal-section signal-modal-meta-row">
+          <span id="signal-modal-datausage"></span>
+          <span>Generated <span id="signal-modal-ts"></span></span>
+        </section>
+      </div>
+
+      <div class="signal-modal-col signal-modal-col-refs">
+        <div class="signal-detail-label">References</div>
+        <div id="signal-modal-refs"><p style="color:var(--muted-dark)">Loading…</p></div>
+      </div>
+
+    </div>
+
+    <div class="modal-footer">
+      <button id="signalRegenBtn" class="danger">Regenerate</button>
+      <div style="flex:1"></div>
+      <button id="signalCloseBtn">Close</button>
+    </div>
+
+  </div>
+</div>
+
+
 <div id="toast"><span class="toast-dot"></span><span id="toast-msg"></span></div>
 
 <script src="/admin/assets/js/app.js"></script>