Budget for the pre-run liveness probe. A healthy CDP round-trip answers in single-digit ms even on a loaded runner, so this is generous headroom: if it elapses, the browser is dead (or wedged) and recovery relaunches a fresh one. Kept well under GROUP_TIMEOUT_MS so a doomed browser surfaces in seconds, not the 3-minute last-resort deadline.
import type * as Server from './server.ts'; const budgetMs: typeof Server.BROWSER_PROBE_TIMEOUT_MS = 3_000; // the probe's upper bound budgetMs; // 3000