BUILD_RTI conditional fixes and Qt6 API updates

- cmake/FindRTI.cmake: Add INTERFACE placeholder targets when RTI not found
- cmake/FindRTI.cmake: Force BUILD_RTI=OFF when RTI not installed
- Lts/Common/LtsSession/CMakeLists.txt: Make LtsSessionDataDds conditional on BUILD_RTI
- Lts/Viewer/CMakeLists.txt: Make LtsDataView conditional on BUILD_RTI
- Lts/Plugins/*/CMakeLists.txt: 97 plugin files wrapped in BUILD_RTI conditionals
- cmake/NGLMacros.cmake: Fix NGL_ADD_BIG_RESOURCES macro (removed premature return())
- Multiple Qt6 API fixes: QLinkedList→std::list, QStringRef→QStringView, etc.
- BUILD_RTI_FIXES_SUMMARY.md: Comprehensive documentation of all fixes

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

qt6-after/qt6-migrated-legatus/include/AreaEffectSimulation/aes.hpp

@@ -1,74 +0,0 @@
-#pragma once
-// STUB-HEADER: Diese Datei wird normalerweise von DDS generiert
-// Für die Migration erstellen wir minimale Typ-Definitionen
-
-#include <QString>
-#include <QList>
-#include <QVector>
-
-namespace AreaEffectSimulation
-{
-
-// Forward declarations
-struct ExplosionSingle;
-struct EffectCluster;
-struct AirSupportImpact;
-struct OffRouteMine;
-struct TrajectoryAdler;
-
-// ExplosionSingle - Einzelne Explosion
-struct ExplosionSingle {
-  int id = 0;
-  double x = 0.0;
-  double y = 0.0;
-  double z = 0.0;
-  double radius = 0.0;
-  double damage = 0.0;
-  qint64 timestamp = 0;
-  QString type;
-};
-
-// EffectCluster - Gruppe von Effekten
-struct EffectCluster {
-  int id = 0;
-  QString name;
-  double x = 0.0;
-  double y = 0.0;
-  double z = 0.0;
-  QList<int> effectIds;
-  qint64 timestamp = 0;
-};
-
-// AirSupportImpact - Luftunterstützungseffekt
-struct AirSupportImpact {
-  int id = 0;
-  double x = 0.0;
-  double y = 0.0;
-  double z = 0.0;
-  QString aircraftType;
-  QString weaponType;
-  qint64 timestamp = 0;
-};
-
-// OffRouteMine - Abseits-Mine
-struct OffRouteMine {
-  int id = 0;
-  double x = 0.0;
-  double y = 0.0;
-  double z = 0.0;
-  bool active = true;
-  QString mineType;
-  qint64 timestamp = 0;
-};
-
-// TrajectoryAdler - Flugbahn für Adler
-struct TrajectoryAdler {
-  int id = 0;
-  QList<double> xPoints;
-  QList<double> yPoints;
-  QList<double> zPoints;
-  qint64 timestamp = 0;
-  QString trajectoryType;
-};
-
-} // namespace AreaEffectSimulation

qt6-after/qt6-migrated-legatus/include/AreaEffectSimulation/aes_enums.hpp

@@ -1,71 +0,0 @@
-#pragma once
-// STUB-HEADER: Diese Datei wird normalerweise von ddsdtc generiert
-// Für die Migration erstellen wir minimale Typ-Definitionen
-
-#include <QString>
-
-namespace AreaEffectSimulation
-{
-// Placeholder enums - werden durch echte DDS-Typen ersetzt
-enum class SymbolAppearance : int {
-  Solid = 0,
-  Dashed = 1,
-  Dotted = 2
-};
-
-enum class SymbolVisibility : int {
-  Visible = 0,
-  Hidden = 1
-};
-
-struct UnitSymbolPosition {
-  double x = 0.0;
-  double y = 0.0;
-  double z = 0.0;
-};
-
-// AesType - Arten von Area Effect Simulation Entities
-enum class AesType : int {
-  AtBCContamination = 0,
-  AtNContamination = 1,
-  AtDangerArea = 2,
-  AtMineArea = 3,
-  AtMineCorridor = 4,
-  AtExplosionSingle = 5,
-  AtExplosionArea = 6,
-  AtFunctionalArea = 7,
-  AtBorderline = 8,
-  AtMineAreaSingleMines = 9,
-  AtDusSingleMine = 10,
-  AtGasPipe = 11,
-  AtTechnicalArea = 12,
-  AtAirSupportImpact = 13,
-  AtUnknown = 99
-};
-
-// AesEffectState_def - Status eines AES Effekts (mit _def Suffix wie DDS generiert)
-enum class AesEffectState_def : int {
-  EsCreated = 0,
-  EsPrepared = 1,
-  EsFired = 2,
-  EsActivated = 3,
-  EsPaused = 4,
-  EsExpired = 5,
-  EsRemoved = 6,
-  EsUnknown = 99,
-  EsError = 100
-};
-
-// AesEffectState - Alias für AesEffectState_def (Backward Compatibility)
-using AesEffectState = AesEffectState_def;
-
-// EffectStateStruct - Filter-Struktur für Effect States
-struct EffectStateStruct {
-  bool showCreated = true;
-  bool showPrepared = true;
-  bool showActive = true;
-  bool showInactive = false;
-  bool showExpired = false;
-};
-
-} // namespace AreaEffectSimulation