Reduce compiler warnings: replace qAsConst with std::as_const and update event localPos() to position()

Replaced deprecated qAsConst usages in built modules and updated QMouseEvent::localPos() to position() per Qt6 deprecation guidance.\n\nCo-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Z/src/tcpserver/tcpserver.cpp

@@ -184,7 +184,7 @@ void TcpServer::workerFinished()
 void TcpServer::shutdownRequest()
 {
   emit aboutToQuit(d->port);
-  for (WorkerBase *worker : qAsConst(d->workers))
+  for (WorkerBase *worker : std::as_const(d->workers))
   {
     WorkerInstance *wi = dynamic_cast<WorkerInstance *>(worker);
     if (wi)