Fix invalidateFilter() deprecated API and add ImmutablePart includes

- terrain_profile_processor.cpp: Add ImmutablePart.h and ImmutablePartCollection.h includes for Qt6 ArcGIS SDK v300
- base_symbol_model.cpp: Replace 4x invalidateFilter() with beginFilterChange()/endFilterChange() for Qt6 QSortFilterProxyModel compatibility

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

qt6-after/qt6-migrated-legatus/Lts/Viewer/SituationMap/MapImpl/terrain_profile_processor.cpp

@@ -24,6 +24,8 @@
 #include <Polyline.h>
 #include <Part.h>
 #include <Multipart.h>
+#include <ImmutablePart.h>
+#include <ImmutablePartCollection.h>
 #include <LinearUnit.h>
 #include <AngularUnit.h>
 

qt6-after/qt6-migrated-legatus/Lts/Viewer/SituationMap/SymbologyImpl/base_symbol_model.cpp

@@ -997,33 +997,37 @@ QSet<QString> BaseSymbolProxyModel::validBaseSymbolCodes() const
 
 void BaseSymbolProxyModel::setValidBaseSymbolCodes(const QSet<QString> &validBaseSymbolCodes)
 {
+  beginFilterChange();
   m_validBaseSymbolCodes = validBaseSymbolCodes;
-  invalidateFilter();
+  endFilterChange();
 }
 
 void BaseSymbolProxyModel::onFilterPoints(bool on)
 {
+  beginFilterChange();
   if (on)
     m_geometrySet.insert(AdvancedSymbology::GeometryType::Point);
   else
     m_geometrySet.remove(AdvancedSymbology::GeometryType::Point);
-  invalidateFilter();
+  endFilterChange();
 }
 void BaseSymbolProxyModel::onFilterLines(bool on)
 {
+  beginFilterChange();
   if (on)
     m_geometrySet.insert(AdvancedSymbology::GeometryType::Polyline);
   else
     m_geometrySet.remove(AdvancedSymbology::GeometryType::Polyline);
-  invalidateFilter();
+  endFilterChange();
 }
 void BaseSymbolProxyModel::onFilterAreas(bool on)
 {
+  beginFilterChange();
   if (on)
     m_geometrySet.insert(AdvancedSymbology::GeometryType::Polygon);
   else
     m_geometrySet.remove(AdvancedSymbology::GeometryType::Polygon);
-  invalidateFilter();
+  endFilterChange();
 }
 
 bool BaseSymbolProxyModel::filterAcceptsRow(int source_row, const QModelIndex &source_parent) const