feat: Ability to improve drafts in the editor using GPT integration (#6957)

ref: https://github.com/chatwoot/chatwoot/issues/6436
fixes: https://linear.app/chatwoot/issue/CW-1552/ability-to-rephrase-text-in-the-editor-using-gpt-integration

---------

Co-authored-by: Sojan <sojan@pepalo.com>
Co-authored-by: Nithin David Thomas <1277421+nithindavid@users.noreply.github.com>

app/controllers/api/v1/accounts/integrations/hooks_controller.rb

@@ -1,5 +1,5 @@
 class Api::V1::Accounts::Integrations::HooksController < Api::V1::Accounts::BaseController
-  before_action :fetch_hook, only: [:update, :destroy]
+  before_action :fetch_hook, except: [:create]
   before_action :check_authorization
 
   def create
@@ -10,6 +10,10 @@ class Api::V1::Accounts::Integrations::HooksController < Api::V1::Accounts::Base
     @hook.update!(permitted_params.slice(:status, :settings))
   end
 
+  def process_event
+    render json: { message: @hook.process_event(params[:event]) }
+  end
+
   def destroy
     @hook.destroy!
     head :ok