add passkey support

src/domain.rs

@@ -21,6 +21,15 @@ pub struct User {
     pub display_name: String,
 }
 
+#[derive(Clone, Debug)]
+pub struct Passkey {
+    pub id: i64,
+    pub user_id: i64,
+    pub credential_id: String,
+    pub credential: String,
+    pub counter: i64,
+}
+
 #[derive(Clone, Debug)]
 pub struct SessionUser {
     pub user: User,