Dev 3c09155648 feat(01-06): implement FeatureViewModelBase with async/cancel/progress pattern ...

- Add ProgressUpdatedMessage ValueChangedMessage for StatusBar live updates
- Add FeatureViewModelBase with CancellationTokenSource lifecycle, IsRunning,
  IProgress<OperationProgress>, OperationCanceledException handling
- Add 6 unit tests covering lifecycle, progress, cancellation, error handling
  and CanExecute guard

2026-04-02 12:29:38 +02:00

3.7 KiB

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