Merge origin/feature/migrate-and-test-DDS-targets into feature/qt6-migration-basis-modules

Resolve merge conflicts between Qt6 migration basis modules and DDS test/target migration:

- codegen_simple.py: Keep Qt6 includes (generic_dtc_impl.h, service header)
- svc_ftc_impl.cpp.grantlee: Adopt DDS branch conditional logic ({% if ft.isCoreFt %})
- generic_dtc.h/.impl.h (include/ and Lts/): Keep Qt6 full-path includes, explicit wrapper methods for consistency
- connext.h: Add logger initialization for Requester/Replier (DDS branch enhancement)
- new_docker_build.sh:
  - Add GROUP4_TARGETS for DDS tests
  - Smart DOCKER_IMAGE selection (prebuilt vs ubuntu:26.04)
  - Add BUILD_TESTING=ON to cmake
  - Add Group 4 (DDS Tests) build step

Strategy: Preserve Qt6 migration decisions while incorporating DDS test/target changes.

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

qt6-after/qt6-migrated-legatus/include/DDS/DTC/generic_dtc_impl.h

@@ -16,6 +16,7 @@
 #include <DDS/Generic/generic_data_reader.h>
 #include <DDS/Generic/subscriber_listener.h>
 #include <DDS/Generic/generic_logger.h>
+
 #include <dds/core/cond/StatusCondition.hpp>
 #include <dds/core/cond/WaitSet.hpp>
 

qt6-after/qt6-migrated-legatus/include/DDS/Generic/generic_data_reader.h

@@ -8,45 +8,23 @@
  * when BUILD_RTI=ON, or provides stub implementation when BUILD_RTI=OFF.
  */
 
-#include <dds/sub/subfwd.hpp>
+#include <functional>
+#include <string>
+
+#ifdef BUILD_RTI
+// RTI DDS is available - include full implementation from Lts
+// MUST be included BEFORE namespace DDSGeneric to avoid namespace pollution
+#include <Lts/DDS/Generic/dynamic_data_reader.h>
+#include <Lts/DDS/Generic/generic_data_reader.h>
 
 namespace DDSGeneric
 {
-
-#ifdef BUILD_RTI
-// RTI DDS is available - include full DynamicDataReader implementation
-#include <Lts/DDS/Generic/dynamic_data_reader.h>
-
-// Forward declaration stub for DataReader
-// RTI 7.7 signature: template <typename T, template <typename Q> class DELEGATE = dds::sub::detail::DataReaderImpl>
-template<typename T>
-class GenericDataReader {
-public:
-    using DataType = T;
-    using ReaderType = dds::sub::DataReader<T>;
-    
-    // Minimal interface - extend as needed
-    bool has_data() const { return false; }
-    T read_data() { return T{}; }
-    void cleanup() {}
-    
-    // Access to underlying RTI reader if needed
-    ReaderType& reader() { return m_reader; }
-    const ReaderType& reader() const { return m_reader; }
-    
-private:
-    ReaderType m_reader;
-};
-
-template<typename T>
-class GenericDataReaderContentFilter {
-public:
-    using DataType = T;
-    // Minimal stub - extend as needed
-};
+// Full implementation is in Lts/DDS/Generic/generic_data_reader.h
+// This file just provides the include path redirection
+} // namespace DDSGeneric
 
 #else
-// BUILD_RTI=OFF: Provide minimal stub definitions
+// BUILD_RTI=OFF: Provide minimal stub definitions for RTI types
 
 namespace dds {
 namespace sub {
@@ -73,16 +51,95 @@ public:
 } // namespace sub
 } // namespace dds
 
-// GenericDataReader stub template
+namespace DDSGeneric
+{
+
+// GenericDataReader stub template (only when BUILD_RTI=OFF)
 template<typename T>
 class GenericDataReader {
 public:
-    using DataType = T;
+    using TopicType = T;
+    using TopicTypeRead = T;
+    using DataReader = void*;
+    using DataTopic = void*;
+    using DataReaderQos = void*;
+    using SubscriberCallback = std::function<void(const TopicTypeRead&, int)>;
+    using SubscriberCallbackWithSampleInfo = std::function<void(const TopicTypeRead&, const void*)>;
     
-    // Minimal stub methods - extend as needed
-    bool has_data() const { return false; }
-    T read_data() { return T{}; }
-    void cleanup() {}
+    GenericDataReader()
+        : m_dataReader(nullptr), m_ddsTopic(nullptr), m_bHaveSubscriberCallback(false)
+    {
+    }
+    
+    virtual ~GenericDataReader()
+    {
+        m_ddsTopic = nullptr;
+        m_dataReader = nullptr;
+    }
+    
+    DataReader getDataReader() const
+    {
+        return m_dataReader;
+    }
+    
+    bool create(const void* domainParticipant, const void* ddsSubscriber,
+                const std::string& topicName = std::string(),
+                bool bCreateDataReader = true)
+    {
+        return false;
+    }
+    
+    bool hasSamples() const
+    {
+        return false;
+    }
+    
+    void* readAlive(bool& bSeenNewSamples)
+    {
+        bSeenNewSamples = false;
+        return nullptr;
+    }
+    
+    void* takeAlive(bool& bSeenNewSamples)
+    {
+        bSeenNewSamples = false;
+        return nullptr;
+    }
+    
+    void* takeDisposed()
+    {
+        return nullptr;
+    }
+    
+    template <typename C> bool read(C callbackFunc)
+    {
+        return false;
+    }
+    
+    void setHaveSubscriberCallback(bool bHave)
+    {
+        m_bHaveSubscriberCallback = bHave;
+    }
+    
+    std::string topicName() const
+    {
+        return std::string();
+    }
+    
+    DataReader dataReader() const
+    {
+        return m_dataReader;
+    }
+    
+    virtual void recreateReader()
+    {
+    }
+    
+protected:
+    DataReader m_dataReader;
+    DataReaderQos m_dataReaderQos;
+    DataTopic m_ddsTopic;
+    bool m_bHaveSubscriberCallback;
 };
 
 template<typename T>
@@ -111,6 +168,6 @@ public:
     bool hasSamples() const { return false; }
 };
 
-#endif // BUILD_RTI
+} // namespace DDSGeneric
 
-} // namespace DDSGeneric
+#endif // BUILD_RTI