upgrades

static/js/graph.js

@@ -366,6 +366,14 @@ class GraphManager {
             };
         }
 
+        // Style based on certificate validity
+        if (node.has_valid_cert === true) {
+            processedNode.borderColor = '#00ff41'; // Green for valid cert
+        } else if (node.has_valid_cert === false) {
+            processedNode.borderColor = '#ff9900'; // Amber for expired/no cert
+            processedNode.borderDashes = [5, 5];
+        }
+
         return processedNode;
     }