Function install_managed_agent

src/agents/kiro.rs:396–423

Create or refresh the tracedecay-owned Kiro agent. Returns true when tracedecay owns the resulting agent file. A pre-existing user-managed `tracedecay.json` is preserved and returns false so the default agent selector is not pointed at a file whose policy tracedecay does not own.

(
    path: &Path,
    tracedecay_bin: &str,
    steering_path: &Path,
    profile_home: &Path,
    managed_skill_index_path: Option<&Path>,
)

/// user-managed `tracedecay.json` is preserved and returns false so the default
/// agent selector is not pointed at a file whose policy tracedecay does not own.
fn install_managed_agent(
    path: &Path,
    tracedecay_bin: &str,
    steering_path: &Path,
    profile_home: &Path,
    managed_skill_index_path: Option<&Path>,
) -> Result<bool> {
    if path.exists() && !is_owned_agent_file(path) {
        eprintln!(
            "  {} already exists and is user-managed, leaving unchanged",
            path.display()
        );
        return Ok(false);
    }

    let managed_skill_index_path = match managed_skill_index_path {
        Some(index_path) => install_kiro_managed_skill_index(profile_home, index_path)?,
        None => None,
    };
    let backup = backup_config_file(path)?;
    let config = managed_agent_config(tracedecay_bin, steering_path, managed_skill_index_path);
    safe_write_json_file(path, &config, backup.as_deref())?;
    eprintln!(
        "\x1b[32m✔\x1b[0m Wrote tracedecay Kiro agent to {}",
        path.display()
    );
    Ok(true)
}

fn install_kiro_managed_skill_index<'a>(
    home: &Path,