Cardano Updates

Refactored `run_command` to stream stdout and stderr concurrently using
threads, allowing for proper separation of output streams.
Updated shell script logging to capture stderr while still displaying
both outputs in real time. Improves error handling and log clarity for
CLI operations.

Refactored `run_command` to stream stdout and stderr concurrently using
threads, allowing for proper separation of output streams.
Updated shell script logging to capture stderr while still displaying
both outputs in real time. Improves error handling and log clarity for
CLI operations.

Refactored `run_command` to stream stdout and stderr concurrently using
threads, allowing for proper separation of output streams.
Updated shell script logging to capture stderr while still displaying
both outputs in real time. Improves error handling and log clarity for
CLI operations.