Function markRecordingStart

e2e/src/timeline.ts:35–41

(runDir: string, window: TimelineWindow)

/** Record that `window`'s recording clock starts now. */
export const markRecordingStart = (runDir: string, window: TimelineWindow): void => {
  const timeline = read(runDir);
  write(runDir, {
    ...timeline,
    anchors: { ...timeline.anchors, [window]: Date.now() },
  });
};

/** Record that the scenario is acting on `window` (deduped per run). */
export const markFocus = (runDir: string, window: TimelineWindow): void => {