Joseph Doherty
b298ca74be
Replaces the raw IllegalArgumentException thrown by GalaxyBrowseCommand for --depth < 0 with a CommandLine.ParameterException so picocli surfaces a clean single-line error instead of an unhandled stack trace. Adds an upper bound of 50 (matching the Python client) so --depth > 50 is also rejected cleanly. Emits a stderr warning when --parent 0 is supplied explicitly, matching Go/Rust client behaviour, because gobject id 0 is the server's root-walk sentinel and passing it via --parent is almost always a mistake. Adds three new tests: negative depth, depth > 50, and the --parent 0 warning path.