fix crash when clicking site compound nodes on network map

Site compound nodes have IDs like "site_<uuid>" which can't be cast to
binary_id in Ecto queries. Add guard clause to get_node_detail/2 and
skip node_clicked events for site nodes in Cytoscape hook.

assets/js/app.ts

@@ -867,11 +867,14 @@ const NetworkMap = {
       wheelSensitivity: 1
     })
 
-    // Add click handler for nodes
+    // Add click handler for nodes (skip site compound nodes)
     this.cy.on('tap', 'node', (evt: any) => {
       const node = evt.target
       const nodeData = node.data()
 
+      // Don't open detail panel for site group nodes
+      if (nodeData.type === 'site') return
+
       // Push event to LiveView to open detail panel
       this.pushEvent("node_clicked", {
         node_id: nodeData.id,

lib/towerops/topology.ex

@@ -530,6 +530,8 @@ defmodule Towerops.Topology do
     end
   end
 
+  def get_node_detail("site_" <> _rest, _organization_id), do: nil
+
   def get_node_detail(device_id, organization_id) do
     device =
       Repo.one(

test/towerops/topology_test.exs

@@ -1362,6 +1362,12 @@ defmodule Towerops.TopologyTest do
       result = Topology.get_node_detail(Ecto.UUID.generate(), org.id)
       assert result == nil
     end
+
+    test "returns nil for site compound node IDs",
+         %{organization: org, site: site} do
+      result = Topology.get_node_detail("site_#{site.id}", org.id)
+      assert result == nil
+    end
   end
 
   describe "list_connected_devices/1" do