Qt6 Migration: Complete migration with DDS/RTI support and build validation

Major Changes:
- Merged latest Qt5 devel content from dlbo (292 files changed, 7 new dirs)
- Consolidated forward-declarations and include folders
- Removed unneeded modules per Niklas' repo check list

Build System Fixes:
- Fixed CMake VERSION_GREATER syntax in ParticipantManagement/CMakeLists.txt
- Added VLC packages (libvlc-dev, vlc-plugin-base) to docker_build.sh
- Added PostgreSQL dev packages (libpq-dev, postgresql-server-dev-all) to Dockerfile
- Fixed locale warnings (ANSI_X3.4-1968 → C.UTF-8)
- Fixed ArcGIS SDK path warnings when BUILD_ARCGIS=OFF

Code Generation Fixes:
- Fixed IDL enum collisions (PortType→CorePortType/DdsutPortType, PdmEventType)
- Fixed Grantlee template svc_translation.cpp.grantlee:
  - Changed {{ idl_enum.name }}_def:: to {{ idl_enum.name }}::
  - Fixed .underlying() calls for C++11 scoped enums (enum class)
- Removed generated files from repo (moc_*, *_dtc.h, *_ftc.h)

Validation:
- BUILD_RTI=ON: SUCCESS
- BUILD_RTI=OFF: SUCCESS
- C++17 standard maintained for RTI 7.7 compatibility
- Ubuntu 26.04 Docker environment verified

Remaining Warnings (expected):
- BgViewer, KDChart, KDReports, Poppler-Qt6 not found (optional features)

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

qt5-before/dlbo/Lts/Tools/SqlBrowser/Query.h

@@ -0,0 +1,105 @@
+#pragma once
+
+#include "DataModel.h"
+#include "AddModel.h"
+#include "AddLine.h"
+
+#include <QWidget>
+#include <QSortFilterProxyModel>
+#include <QList>
+#include <QSet>
+#include <QModelIndex>
+
+class QueryWorker;
+class QCheckBox;
+
+namespace Ui
+{
+class Query;
+}
+
+
+class Query: public QWidget
+{
+  Q_OBJECT
+  
+public:
+  explicit Query(QueryWorker* queryWorker, QWidget *parent = nullptr);
+  ~Query();
+  
+  void setTable(const QString& tableName); // get's data from specified table and shows it in the data view
+  
+  void setModel();
+  void refreshData(QVariant val, QModelIndex onThisPosition);
+  void handleError(const QString &errorText);
+  
+private:
+  Ui::Query* m_ui;
+  DataModel* m_model;
+  QSortFilterProxyModel m_sortModel;
+  QueryWorker* m_queryWorker;
+  AddLines* m_addLines; // need access to add lines for show/hide/close.....
+  QSet<QCheckBox *> m_checkboxes;
+  bool m_idInWhere;
+  
+  void setCustomQuery(); // cannot add/delete/reload
+  void setTableQuery(); // can add/delete/reload
+  
+  QStringList checkedColumnsNames() const;
+signals:
+  void signalShowWait(const QString &msg);
+  void signalHideWait();
+  
+private slots:
+  void slotExportCSV();
+  void onQueryDelete();
+  void onQueryInsert();
+  void onQueryUpdate();
+  
+// new architecture
+  
+// Delete Line(s)
+signals:
+  void signalDeleteLines(Query* caller, const QList<QModelIndex> &, DataModel*);
+  
+private slots:
+  void slotDeleteLine();
+  void slotDeleteLinesResult(Query* caller, int affectedRowsCount, QString errorText, const QList<QModelIndex> &affectedRowsList);
+  
+  
+// Custom Query  
+signals:
+  void signalCustomQuery(Query* caller, const QString &, DataModel*);
+  
+private slots:
+  void slotCustomQuery();
+  void slotCustomQueryResult(Query* caller, const QString &errorText);
+  
+
+// Table Query  
+signals:
+  void signalTableQuery(Query* caller, DataModel*);
+  
+private slots:
+  void slotTableQuery();
+  void slotTableQueryResult(Query* caller, const QString &errorText);
+  
+  
+// Add Line
+signals:
+  void signalAddLines(Query* caller, AddModel*);
+  
+private slots:
+  void slotStartAddLines();
+  void slotAddLines(AddModel*);
+  void slotAddLinesResult(Query* caller, int affectedRows, const QString &errorText);
+  
+  
+// Set Data
+signals:
+  void signalSetData(Query* caller, DataModel *model, const QModelIndex &index, const QVariant &val);
+  
+private slots:
+  void slotSetData(DataModel* model, const QModelIndex &index, const QVariant &val);
+  void slotSetDataResult(Query* caller, const QString &errorText);
+};