Session 022: Migrate Lts/Tools (72 submodules) to Qt6

- Copied complete Lts/Tools directory from qt5-before to qt6-after
- Updated 32 CMakeLists.txt files (Qt5:: → Qt6::)
- Tools subdirectory already included in parent Lts/CMakeLists.txt
- All 72 tool submodules now present in qt6-migrated-legatus
- Includes: Adler, ArAssets, ConfigX, DBAdministration, DBUpdate,
  DdsView, InfrastructureManagement, and 67 more tools
- C++17 standard (RTI 7.7.0 compatibility maintained)
- Tests deferred until final validation phase

Migration progress:
✅ Lts/Application (68 files)
✅ Lts/DDS (verified Qt6-ready)
✅ Lts/Plugins (60 submodules, verified)
✅ Lts/Projects (5 submodules, verified)
✅ Lts/Proxies (13 submodules, verified)
✅ Lts/Services (47 submodules, verified)
✅ Lts/Tools (72 submodules, copied + CMake updated)
✅ Lts/Viewer (LtsFileDialog, LtsReportDisplay, SituationMap)
🟡 TetraIF (partial)
🟡 Z (partial: nglwidgets, QtSingleApplication, qsql_informix, WMS_Interface)

qt6-after/qt6-migrated-legatus/Lts/Tools/SqlBrowser/PresetManager.h

@@ -0,0 +1,43 @@
+#pragma once
+
+#include <QFile>
+#include <QtCore/QVector>
+
+struct LoginData
+{
+  QString database;
+  QString username;
+  QString password;
+  QString hostname;
+  QString filename;
+  QString driver;
+
+  int port = - 1; // no unsigned short (must contain -1 as default port)
+};
+
+struct Preset
+{
+  QString name;
+  LoginData loginData;
+};
+
+
+class PresetManager : public QObject
+{
+  Q_OBJECT
+public:
+  using PresetList = QVector<Preset>;
+
+  PresetManager();
+  const PresetList &getPresetList() const;
+  void savePreset(const LoginData &loginData, QWidget *parent);
+
+private:
+  QFile file;
+  PresetList presetList;
+
+  void createFile();
+  void savePresets();
+  void addDefaultPreset();
+
+};