refactoring

LocalizationWorker.cpp

@@ -3,6 +3,8 @@
 
 #include <vtkImageData.h>
 
+#include <QString>
+
 LocalizationWorker::LocalizationWorker(QObject* parent)
     : QObject(parent)
 {
@@ -32,9 +34,8 @@ void LocalizationWorker::run(vtkImageData* volume, LocalizationParams params)
 
         emit finished(std::move(markers));
     } catch (const std::exception& e) {
-        // Keep behavior consistent with legacy code: treat as aborted.
-        // (UI can be extended to show the exception message.)
-        (void)e;
-        emit aborted();
+        emit failed(QString::fromUtf8(e.what()));
+    } catch (...) {
+        emit failed(QStringLiteral("Unknown error in localization"));
     }
 }