/**
 * Polyfill performance for the workflow isolate.
 *
 * OTel v2's browser platform accesses `performance` at module scope.
 * This file MUST have zero imports so webpack initializes it before any
 * OTel module that references `performance`.
 *
 * The guard uses two checks:
 * - `__webpack_module_cache__` on globalThis is a positive indicator of the
 *   workflow sandbox (set by the SDK's VM creators before the bundle evaluates).
 * - `performance` being undefined confirms polyfilling is needed. The polyfill
 *   reads workflow time from the activator so it is safe during preload.
 *
 * @module
 */
export {};