Fix INGLLogger initialization for BUILD_RTI=OFF compatibility

- Replace NGL::NGLLoggerBootstrap::getNGLRootLogger() with NGL::getMemoryLogger()
  in all VideoOverlayManagement handler classes
- Fix Qt6 signal syntax in avs_interface.cpp (error → errorOccurred)
- Ensures compatibility with BUILD_RTI=OFF builds
- Affected files:
  * logger.cpp - Added BUILD_RTI guards, use NGL::getMemoryLogger()
  * avs_interface.cpp - Logger init + Qt6 signal fix
  * main_handler.cpp - Logger init fix
  * handler_overlays.cpp - Logger init fix
  * handler_infrastructure_data.cpp - Logger init fix
  * handler_participant_data.cpp - Logger init fix

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

qt6-after/qt6-migrated-legatus/Lts/Services/VideoOverlayManagement/avs_interface.cpp

@@ -25,7 +25,7 @@ AvsInterface::AvsInterface(bool enableTryReconnect, QObject *parent) : QObject(p
   , m_keepAliveTime(Settings::getAvsKeepAliveTime())
   , m_avsIfConnectionState(AvsIfConnectionState::Undefined)
   , m_socket(nullptr),
-    m_logger(NGL::NGLLoggerBootstrap::getNGLRootLogger()) {
+    m_logger(NGL::getMemoryLogger()) {
   doConnect();
 
   connect(m_avsKeepAliveTimer, &QTimer::timeout,
@@ -54,7 +54,7 @@ void AvsInterface::doConnect()
           this, &AvsInterface::onConnected);
   connect(m_socket, &QTcpSocket::disconnected,
           this, &AvsInterface::onDisonnected);
-  connect(m_socket, QOverload<QAbstractSocket::SocketError>::of(&QTcpSocket::error),
+  connect(m_socket, QOverload<QAbstractSocket::SocketError>::of(&QTcpSocket::errorOccurred),
           this, &AvsInterface::onError);
   connect(m_socket, &QTcpSocket::readyRead,
           this, &AvsInterface::onReadyRead);