f8b73cc3d7
- Added `args` field to ShellResult to capture the executed command. - Added `exit_code` property to ShellResult as an alias for `returncode`. - Added `check_returncode()` method to ShellResult to raise CalledProcessError on non-zero exit codes. - Renamed `code` field to `returncode` in ShellResult with backward-compatible `code` property. - Updated `run()` command documentation to clarify available ShellResult fields.