/** * The pre-ceremony explanation. * * A biometric prompt with no context is the single biggest
source of confusion in a * passwordless app: people assume a password is being asked for, or that
the app is trying * to take their fingerprint. So every OS-level WebAuthn prompt in Sealed is
preceded by * this sheet, which answers three questions in plain language: what is about to appear,
* what it will be used for, and what we never do with it. * * The same component covers the passkey
case and the "this device cannot do that" case, * because the second one is not an error — it is a
legitimate configuration, and it should * read like an explanation rather than a failure. */