feat: add webauthn signal api serializers #720
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Target branch: 5.3.x
Resolves issue: n/a
The WebAuthn Signal API is a new extension to WebAuthn that allows servers and clients to exchange additional “signal” data in a privacy-preserving way, enabling scenarios such as passkey upgrade flows, security key cross-device operations, seamless migration, and more. See the W3C explainer and Chrome Developer Docs.
This pull request introduces new denormalizers and corresponding signal classes to support WebAuthn serialization for the Signal API. These changes handle three signals:
AllAcceptedCredentials
,CurrentUserDetails
, andUnknownCredential
.