feat: improve task handling, refactoring

src/NodeContext.cpp

@@ -1,14 +1,12 @@
 #include "NodeContext.h"
 
 NodeContext::NodeContext() {
-    scheduler = new Scheduler();
     udp = new WiFiUDP();
     memberList = new std::map<String, NodeInfo>();
     hostname = "";
 }
 
 NodeContext::~NodeContext() {
-    delete scheduler;
     delete udp;
     delete memberList;
 }