/**
 * Default the CLI console to `warn` when no log level is set, so routine `info`
 * output (extensions, diagnostics, etc.) does not clutter the terminal.
 * Opt in with `XOPC_LOG_LEVEL` or `--verbose` / `-v`.
 * This module must load before any import of `../utils/logger.js`.
 */
declare const env: NodeJS.ProcessEnv;