(feat): filter and sort portalUrls by numeric blogId

Author: hnccox

Diff for: src/Base/Models/PortalLinkGenerator.php

@@ -65,6 +65,16 @@ private function getShowOnPortalURL(): string
             return '';
         }
 
+		// Filter out terms where slug is not numeric
+		$terms = array_filter($terms, function($term) {
+			return is_numeric($term->slug);
+		});
+
+		// Sort terms by slug (blog ID)
+		usort($terms, function($a, $b) {
+			return intval($a->slug) <=> intval($b->slug);
+		});
+
         $portalURL = reset($terms);
 
         if (isset($_GET['source'])) {