Polish up Passkey interface

- Fix indentation
- Split awkward initializer into separate methods
- Rename credentials to passkeys
- Simplify authenticator registry loading
- Flatten nested errors under ActionPack::WebAuthn
- Set passkey current params only requests that use it
- Inline anemic methods
- Replace custom validation with ActiveModel::Validation
- Rename identity to holder in Passkey
- Rename credentials to passkeys in JS
- Extract framework library out of controllers
- Pass params hashes down to ActionPack
- Attempt to simplify public interface
- Push data decoding down to the classes representing the data
- Introduce has_passkeys
- Add CBOR bigint support
- Rename ActionPack::WebAuthn::Passkey to ActionPack::Passkey
- Add create_passkey_button helper
- Rename public-key to creation-options
- Add sign_in_with_passkey_button helper
- Dispatch events for the whole Passkey lifecycle
- Add ED25519 support
- Prevent crash on missing meta tag
- Validate resident key options
- Don't clobber existing ActionPack config options
- Validate cryptographic params
- Move CurrentWebAuthnRequest into ActionPack::Passkey
- Use ActiveModel::Attributes for Options objects
- Implement expiring challanges
- Add lifecycle events
- Extract param helpers into Request
- Add passkey_creation_options and passkey_request_options helpers
- Add create_passkey_challenge to make it easier to override the create method if needed
- Prefix all view helpers with passkey_
- Auto-include ActionPack::Passkey::Holder
- Make the passkey challange url configurable
- Add a reminder about Passkeys to the magic link email

test/controllers/my/passkeys_controller_test.rb

@@ -0,0 +1,26 @@
+require "test_helper"
+
+class My::PasskeysControllerTest < ActionDispatch::IntegrationTest
+  include WebauthnTestHelper
+
+  setup do
+    sign_in_as :kevin
+  end
+
+  test "index" do
+    get my_passkeys_path
+    assert_response :success
+  end
+
+  test "register a passkey" do
+    challenge = request_webauthn_challenge
+
+    assert_difference -> { identities(:kevin).passkeys.count }, 1 do
+      post my_passkeys_path, params: build_attestation_params(challenge: challenge)
+    end
+
+    passkey = identities(:kevin).passkeys.order(created_at: :desc).first
+    assert_redirected_to edit_my_passkey_path(passkey, created: true)
+    assert_equal [ "internal" ], passkey.transports
+  end
+end