feat: implement register Passkey user API v2 (#5873)

* command/crypto: DRY the code

- reuse the the algorithm switch to create a secret generator
- add a verifyCryptoCode function

* command: crypto code tests

* migrate webauthn package

* finish integration tests with webauthn mock client

internal/command/user_human_webauthn_model.go

@@ -512,6 +512,9 @@ func (wm *HumanPasswordlessInitCodeWriteModel) appendRequestedEvent(e *user.Huma
 	wm.CryptoCode = e.Code
 	wm.Expiration = e.Expiry
 	wm.State = domain.PasswordlessInitCodeStateRequested
+	if e.CodeReturned {
+		wm.State = domain.PasswordlessInitCodeStateActive
+	}
 }
 
 func (wm *HumanPasswordlessInitCodeWriteModel) appendCheckFailedEvent(e *user.HumanPasswordlessInitCodeCheckFailedEvent) {