[Part 4/6] feat(telemetry): add memory monitor with activity-aware recording and tests (#8122)

Co-authored-by: Jacob Richman <jacob314@gmail.com>

packages/core/src/utils/formatters.ts

@@ -4,13 +4,15 @@
  * SPDX-License-Identifier: Apache-2.0
  */
 
+export const bytesToMB = (bytes: number): number => bytes / (1024 * 1024);
+
 export const formatMemoryUsage = (bytes: number): string => {
   const gb = bytes / (1024 * 1024 * 1024);
   if (bytes < 1024 * 1024) {
     return `${(bytes / 1024).toFixed(1)} KB`;
   }
   if (bytes < 1024 * 1024 * 1024) {
-    return `${(bytes / (1024 * 1024)).toFixed(1)} MB`;
+    return `${bytesToMB(bytes).toFixed(1)} MB`;
   }
   return `${gb.toFixed(2)} GB`;
 };