BUILD_RTI guards for DDS/Routing modules + logger init fixes

- Lts/DDS: Add BUILD_RTI guards to pacemaker.h, dds_connector.h,
  generic_fts_* files, generic_base.h, routing_plugin.h
- Lts/Services/RoutingServiceNG: Add BUILD_RTI guards to session.h/cpp,
  connection.h/cpp, data_writer_task.h/cpp
- Fix C++23 reference member initialization: use getLogger() instead of
  getNGLLogger() in constructor initializer lists
- Root CMakeLists.txt: Add Lts/DDS to include_directories
- Fix export header generation order (GENERATE_EXPORT_HEADER before
  TARGET_INCLUDE_DIRECTORIES)
- Remove auto-generated stub files (external deps collected separately)

qt6-after/qt6-migrated-legatus/Lts/DDS/Routing/routing_plugin.h

@@ -3,6 +3,8 @@
 #include <DDS/Generic/generic_base.h>
 #include <DDS/QosProfile/DDS_DefaultQos.h>
 #include <NGLLogger/INGLLogger.h>
+
+#if BUILD_RTI
 #include <dds/pub/DataWriter.hpp>
 #include <dds/pub/discovery.hpp>
 #include <dds/sub/DataReader.hpp>
@@ -333,3 +335,99 @@ class FunctionTopicRequestDispatcher final : public TopicDispatcher<typename FTC
 };
 
 } // namespace RoutingService
+
+#else // BUILD_RTI=OFF - Stub declarations
+
+namespace RoutingService
+{
+// Stub interfaces when BUILD_RTI=OFF
+class SampleWriterInterface
+{
+  public:
+    SampleWriterInterface() = default;
+    virtual ~SampleWriterInterface() = default;
+    virtual void writeSamples() = 0;
+    virtual NGL::INGLLogger& logger() = 0;
+};
+
+class DataWriterTaskInterface
+{
+  public:
+    DataWriterTaskInterface() = default;
+    virtual ~DataWriterTaskInterface() = default;
+    virtual void enqueue(SampleWriterInterface* /*swi*/) = 0;
+};
+
+class TopicDispatcherInterface
+{
+  public:
+    TopicDispatcherInterface() = default;
+    virtual ~TopicDispatcherInterface() = default;
+    virtual bool init(DataWriterTaskInterface* /*dwt*/, void* /*dpIn*/, void* /*subIn*/, void* /*dpOut*/,
+                      void* /*pubOut*/) = 0;
+    virtual void shutdown() = 0;
+};
+
+// Stub template classes when BUILD_RTI=OFF
+template <typename TOPIC> class SampleWriter final : public SampleWriterInterface
+{
+  public:
+    SampleWriter(void* /*samples*/, void* /*dataWriter*/, bool /*bWithOriginalIdentity*/, NGL::INGLLogger& /*logger*/)
+    {
+    }
+    void writeSamples() override {}
+    NGL::INGLLogger& logger() override
+    {
+        static NGL::INGLLogger dummyLogger;
+        return dummyLogger;
+    }
+
+  private:
+    NGL::INGLLogger& m_logger;
+};
+
+template <typename TOPIC> class TopicDispatcher : public TopicDispatcherInterface
+{
+  protected:
+    explicit TopicDispatcher(NGL::INGLLogger& /*logger*/, const std::string& /*topicName*/, int /*topicType*/) {}
+    ~TopicDispatcher() { shutdown(); }
+    bool init(DataWriterTaskInterface* /*dwt*/, void* /*dpIn*/, void* /*subIn*/, void* /*dpOut*/,
+              void* /*pubOut*/) override
+    {
+        return false;
+    }
+    void shutdown() override {}
+
+  private:
+    NGL::INGLLogger& m_logger;
+};
+
+template <typename TOPIC> class DataTopicDispatcher final : public TopicDispatcher<TOPIC>
+{
+  public:
+    explicit DataTopicDispatcher(NGL::INGLLogger& logger) : TopicDispatcher<TOPIC>(logger, "", 0) {}
+};
+
+template <typename FTS_TOPIC>
+class FunctionTopicReplyDispatcher final : public TopicDispatcher<typename FTS_TOPIC::ReplyTopic>
+{
+  public:
+    explicit FunctionTopicReplyDispatcher(NGL::INGLLogger& logger)
+        : TopicDispatcher<typename FTS_TOPIC::ReplyTopic>(logger, "", 0)
+    {
+    }
+};
+
+template <typename FTC_TOPIC>
+class FunctionTopicRequestDispatcher final : public TopicDispatcher<typename FTC_TOPIC::RequestTopic>
+{
+  public:
+    explicit FunctionTopicRequestDispatcher(NGL::INGLLogger& logger)
+        : TopicDispatcher<typename FTC_TOPIC::RequestTopic>(logger, "", 0)
+    {
+    }
+};
+
+} // namespace RoutingService
+
+#endif // BUILD_RTI