Grantlee Templates: Fix namespace resolution for RTI DTC generation

- Changed {{ namespace }}::{{ dt.type }} to ::{{ namespace }}::{{ dt.type }}
  in svc_dtc.h.grantlee, svc_dtc_impl.cpp.grantlee, svc_dtc_impl.h.grantlee
- Ensures absolute namespace resolution for Core::* types
- Fixes MOC/compilation errors for CurrentRunningState, LockedEntity, etc.

- Updated CMakeLists.txt for RTI 7.7.0 detection with DDS_PATH
- Fixed RTI include paths (ndds/hpp and ndds directories)
- Updated Lts/DDS module files for Qt6/RTI 7.7 compatibility

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

qt6-after/qt6-migrated-legatus/Lts/DDS/Core/pacemaker.cpp

@@ -2,6 +2,7 @@
 
 #include "pacemaker.h"
 
+#if BUILD_RTI
 #include <DDS/DDSConnector/dds_connector.h>
 #include <DDS/DTS/generic_dts.h>
 #include <DDS/DTS/generic_dts_impl.h>
@@ -14,7 +15,7 @@ namespace Core
 {
 Pacemaker::Pacemaker(DDSConnector::DdsConnector *ddsConnector)
   : QObject(nullptr)
-  .getNGLLogger("Core.Pacemaker"))
+  , m_logger(NGL::INGLLoggerBootstrap::getNGLLogger("Core.Pacemaker"))
 {
     init(ddsConnector);
 }
@@ -108,4 +109,57 @@ void Pacemaker::startTimer()
     m_paceThread->start();
 }
 
+#else // BUILD_RTI
+
+Pacemaker::Pacemaker(void* ddsConnector)
+  : QObject(nullptr)
+{
+    Q_UNUSED(ddsConnector)
+}
+
+Pacemaker::~Pacemaker()
+{
+}
+
+void Pacemaker::setNewState(Core::RunningState newState, const QString& errorString)
+{
+    Q_UNUSED(newState)
+    Q_UNUSED(errorString)
+}
+
+void Pacemaker::setNewStateInternal(Core::RunningState newState, const QString& errorString)
+{
+    Q_UNUSED(newState)
+    Q_UNUSED(errorString)
+}
+
+void Pacemaker::addPort(unsigned short number, Core::PortType portType, const QString& properties)
+{
+    Q_UNUSED(number)
+    Q_UNUSED(portType)
+    Q_UNUSED(properties)
+}
+
+void Pacemaker::addPortInternal(unsigned short number, Core::PortType portType, const QString& properties)
+{
+    Q_UNUSED(number)
+    Q_UNUSED(portType)
+    Q_UNUSED(properties)
+}
+
+void Pacemaker::publishState()
+{
+}
+
+void Pacemaker::init(void* ddsConnector)
+{
+    Q_UNUSED(ddsConnector)
+}
+
+void Pacemaker::startTimer()
+{
+}
+
+#endif // BUILD_RTI
+
 } // namespace Core