Add parallel execution tests and improve cancellation handling in `CliRunner`
- Introduced new tests (`RunMultipleTimesTestProgram_CheckParalelWork` and `RunMultipleTimesTestProgram_CheckParalelWorkCumulative`) to verify parallel execution behavior.
- Enhanced `SendAsync` and `RunAndCaptureJsonAsync` methods in `CliRunner` with `CancellationToken` support for better task cancellation.
- Refactored process output handling for improved clarity and robustness.
- Added error handling during CLI logger initialization.
"Remove unused NfcHanler classes and utilities"
This commit deletes several obsolete and unused files from the NfcHanler directory, including utility classes, enums, and a large command handling class. This cleanup improves code maintainability by eliminating unnecessary dependencies and clutter.
