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/domain/user_v2_passkey.go

@@ -0,0 +1,29 @@
+package domain
+
+import "io"
+
+type PasskeyURLData struct {
+	UserID string
+	OrgID  string
+	CodeID string
+	Code   string
+}
+
+// RenderPasskeyURLTemplate parses and renders tmpl.
+// userID, orgID, codeID and code are passed into the [PasskeyURLData].
+func RenderPasskeyURLTemplate(w io.Writer, tmpl, userID, orgID, codeID, code string) error {
+	return renderURLTemplate(w, tmpl, &PasskeyURLData{userID, orgID, codeID, code})
+}
+
+type PasskeyCodeDetails struct {
+	*ObjectDetails
+	CodeID string
+	Code   string
+}
+
+type PasskeyRegistrationDetails struct {
+	*ObjectDetails
+
+	PasskeyID                          string
+	PublicKeyCredentialCreationOptions []byte
+}