feat: move controller to facebook

app/controllers/facebook/delete_controller.rb

@@ -1,7 +1,7 @@
-class Webhooks::FacebookController < ActionController::API
+class Facebook::DeleteController < ApplicationController
   class InvalidDigestError < StandardError; end
 
-  def process_deletion
+  def create
     signed_request = params['signed_request']
     payload = parse_fb_signed_request(signed_request)
     id_to_process = payload['user_id']

config/routes.rb

@@ -454,6 +454,11 @@ Rails.application.routes.draw do
     resource :callback, only: [:show]
   end
 
+  namespace :facebook do
+    resource :delete, only: [:create]
+    resource :confirm, only: [:show]
+  end
+
   namespace :linear do
     resource :callback, only: [:show]
   end