How is the Auditor app to use? I understand that I can use a second Android phone with the app installed to verify the integrity of my GrapheneOS installation. However, does the other phone get any identifiable, unique, trackable information from the pairing? What is the difference between the Auditor app and the Boot key? Is the Auditor app still required since we have the boot key check on newer Pixel devices? I never felt comfy with the Auditor app because the documentation doesn't show how a successful or failed pairing looks like.