Function looksLikeSSHAlias

src/utils/ssh-config-parser.ts:217–235

(host: string)

 * This is a heuristic to determine if we should look up the host in SSH config
 */
export function looksLikeSSHAlias(host: string): boolean {
  // If it contains dots, it's likely a domain or IP
  if (host.includes('.')) {
    return false;
  }

  // If it's all numbers (with possible colons for IPv6), it's likely an IP
  if (/^[\d:]+$/.test(host)) {
    return false;
  }

  // Check for IPv6 addresses with hex characters
  if (/^[0-9a-fA-F:]+$/.test(host) && host.includes(':')) {
    return false;
  }

  // Otherwise, treat it as a potential SSH alias
  return true;
}

/**
 * Validate a port number and throw an error if invalid