/**
 * The single, fail-closed answer to "is this production?" shared by every
 * Basalt package that changes a security default on `NODE_ENV`.
 *
 * Only an EXPLICIT `NODE_ENV=development` or `NODE_ENV=test` counts as a
 * non-production environment. Unset, empty, `staging`, a typo of
 * `production`, … are all treated as production, so a deploy that forgets
 * `NODE_ENV` gets the strict defaults (strong secrets, `Secure` cookies,
 * redacted logs) instead of the development ones.
 *
 * Vitest sets `NODE_ENV=test` when it is unset, so test suites keep the
 * development defaults without extra configuration.
 */
export declare function isProductionEnvironment(nodeEnv?: string | undefined): boolean;