Qt6 migration: Fix BUILD_RTI=OFF build errors in TrainingAreaBase

- training_area_telegrams.cpp: Fixed QJsonObject initializer syntax (Qt6 requires {{}} not ({}))
- training_area_telegrams.cpp: Fixed fromJson() methods to access m_* members directly
- training_area_telegrams.cpp: Fixed brace mismatches in multiple toJson() methods
- training_area_telegrams.h: Changed Header struct to public members for consistency
- tx_mixin.cpp: Fixed getEquipmentNumber() template for direct member access
- lts_coordinate.cpp: Added missing #include <iomanip>
- MIGRATION_STATUS.md: Added migration progress tracking document

C++17 constraint enforced due to RTI Connext DDS 7.7.0 incompatibility with C++20+

Build status: BUILD_RTI=OFF successful (0 errors, warnings only)

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

qt6-after/qt6-migrated-legatus/Lts/Plugins/TakeHomePackageManager/THP2/Common2/tpm_exported_scripts_model.cpp

@@ -6,14 +6,14 @@
 #include <NGLLogger/NGLLoggerBootstrap.h>
 #include <ngltools/ngltools_dtg.h>
 
-#include <QDateTime>
-#include <QDir>
-#include <QFile>
-#include <QFileInfo>
-#include <QJsonArray>
-#include <QJsonDocument>
-#include <QJsonObject>
-#include <QSaveFile>
+#include <QtCore/QDateTime>
+#include <QtCore/QDir>
+#include <QtCore/QFile>
+#include <QtCore/QFileInfo>
+#include <QtCore/QJsonArray>
+#include <QtCore/QJsonDocument>
+#include <QtCore/QJsonObject>
+#include <QtCore/QSaveFile>
 #include <QFileSystemWatcher>
 #include <QMutableVectorIterator>
 

qt6-after/qt6-migrated-legatus/Lts/Plugins/TakeHomePackageManager/THP2/Common2/tpm_exported_scripts_model.h

@@ -8,8 +8,8 @@
 #include "thp2common_export.h"
 #include <Common2Core/tpm_js_parser.h>
 
-#include <QDateTime>
-#include <QDir>
+#include <QtCore/QDateTime>
+#include <QtCore/QDir>
 
 
 class QFileSystemWatcher;

qt6-after/qt6-migrated-legatus/Lts/Plugins/TakeHomePackageManager/THP2/Common2/tpm_file_copy.cpp

@@ -6,24 +6,24 @@
 #include <Common2/tpm_process_dialog.h>
 #include <Common2Core/tpm_tools.h>
 
-#include <QDir>
-#include <QFile>
-#include <QTemporaryFile>
-#include <QTimer>
-#include <QFuture>
-#include <QFutureWatcher>
-#include <QString>
-#include <QFile>
-#include <QFileInfo>
+#include <QtCore/QDir>
+#include <QtCore/QFile>
+#include <QtCore/QTemporaryFile>
+#include <QtCore/QTimer>
+#include <QtCore/QFuture>
+#include <QtCore/QFutureWatcher>
+#include <QtCore/QString>
+#include <QtCore/QFile>
+#include <QtCore/QFileInfo>
 #include <QtConcurrent>
 #include <QDirIterator>
-#include <QFileDialog>
+#include <QtWidgets/QFileDialog>
 
 #ifdef Q_OS_UNIX
 #include <unistd.h>
 #endif
 
-#include <QDebug>
+#include <QtCore/QDebug>
 
 #ifdef Q_OS_UNIX
 #define _compiler_warning(x) _Pragma(#x)

qt6-after/qt6-migrated-legatus/Lts/Plugins/TakeHomePackageManager/THP2/Common2/tpm_file_copy.h

@@ -7,7 +7,7 @@
 #include <LtsWidgets/lts_dialog.h>
 
 #include <QFileInfoList>
-#include <QWidget>
+#include <QtWidgets/QWidget>
 
 
 namespace TakeHomePackageManager

qt6-after/qt6-migrated-legatus/Lts/Plugins/TakeHomePackageManager/THP2/Common2/tpm_process_dialog.cpp

@@ -13,7 +13,7 @@
 
 
 
-#include <QDebug>
+#include <QtCore/QDebug>
 
 
 

qt6-after/qt6-migrated-legatus/Lts/Plugins/TakeHomePackageManager/THP2/Common2/tpm_process_dialog.h

@@ -5,7 +5,7 @@
 
 #include "thp2common_export.h"
 
-#include <QWidget>
+#include <QtWidgets/QWidget>
 
 
 namespace Ui

qt6-after/qt6-migrated-legatus/Lts/Plugins/TakeHomePackageManager/THP2/Common2/tpm_topics_model.cpp

@@ -6,9 +6,9 @@
 #include <NGLLogger/NGLLoggerBootstrap.h>
 #include <TopicEditorBase/topic_editor_utils.h>
 
-#include <QJsonArray>
-#include <QJsonDocument>
-#include <QJsonObject>
+#include <QtCore/QJsonArray>
+#include <QtCore/QJsonDocument>
+#include <QtCore/QJsonObject>
 
 
 namespace TakeHomePackageManager