feat: set labels in NodeContext/Info

include/NodeContext.h

@@ -5,15 +5,18 @@
 #include "NodeInfo.h"
 #include <functional>
 #include <string>
+#include <initializer_list>
 #include "Config.h"
 
 class NodeContext {
 public:
     NodeContext();
+    NodeContext(std::initializer_list<std::pair<String, String>> initialLabels);
     ~NodeContext();
     WiFiUDP* udp;
     String hostname;
     IPAddress localIP;
+    NodeInfo self;
     std::map<String, NodeInfo>* memberList;
     Config config;