g4a 0.4.4

fn main() {
    println!("g4a is the short-name companion of the gate4agent family.");
    println!(
        "The unified CLI will live here; today use gate4agent-node / gate4agent-c2ctl from this repo."
    );
    println!(
        "Harness operator CLIs (hatchery-harnessctl, …) ship from the hatchery repository."
    );
    println!("https://github.com/ZENG3LD/gate4agent");
}