db00a5d4b5
The 1258-line main.rs is split into: - main.rs: mod declarations, async fn main + panics_on_duplicate_agent_names test (894 lines) - cli.rs: CliArgs struct, parse_cli_args, print_help, resolve_path_arg + their tests (372 lines) main.rs cannot itself become a directory (binary crate must have main.rs at the crate root); cli.rs is a sibling module. No behaviour change. All cli tests pass; full suite green.