Implement Passkey authentication

app/controllers/sessions_controller.rb

@@ -6,6 +6,8 @@ class SessionsController < ApplicationController
   layout "public"
 
   def new
+    @request_options = Identity::Credential.request_options
+    session[:webauthn_challenge] = @request_options.challenge
   end
 
   def create
@@ -67,4 +69,5 @@ class SessionsController < ApplicationController
         end
       end
     end
+
 end