feat: add CPL / Powerline node type with PlugZap icon

frontend/src/types/index.ts

@@ -12,6 +12,7 @@ export type NodeType =
   | 'camera'
   | 'printer'
   | 'computer'
+  | 'cpl'
   | 'generic'
 
 export type EdgeType = 'ethernet' | 'wifi' | 'iot' | 'vlan' | 'virtual' | 'cluster'
@@ -73,6 +74,7 @@ export const NODE_TYPE_LABELS: Record<NodeType, string> = {
   camera: 'Camera',
   printer: 'Printer',
   computer: 'Computer',
+  cpl: 'CPL / Powerline',
   generic: 'Generic Device',
 }