Qt6 migration fixes: RTI DDS alias targets, ErrorMessage namespace, DDS header include path

qt6-after/qt6-migrated-legatus/include/ExerciseManagement/exm_exercise.h

@@ -15,15 +15,18 @@ namespace ExerciseManagement
 struct EXMCOMMON_EXPORT Exercise
 {
     int id = 0;
-    QString name;
+    QString m_name;
+    int phase = 0;  // Exercise phase ID
     SymbolAppearance symbolAppearance = SymbolAppearance::Solid;
     SymbolVisibility symbolVisibility = SymbolVisibility::Visible;
+    
+    [[nodiscard]] std::string name() const { return m_name.toStdString(); }
     // Weitere Felder werden bei Bedarf ergänzt
 };
 
 // Stream operator for logging
 inline std::ostream& operator<<(std::ostream& os, const Exercise& ex) {
-    os << "Exercise(id=" << ex.id << ", name=" << ex.name.toStdString() << ")";
+    os << "Exercise(id=" << ex.id << ", name=" << ex.m_name.toStdString() << ")";
     return os;
 }