feat: hand off if captain limits are reached

enterprise/app/jobs/captain/conversation/response_builder_job.rb

@@ -3,8 +3,12 @@ class Captain::Conversation::ResponseBuilderJob < ApplicationJob
 
   def perform(conversation, assistant)
     @conversation = conversation
+    @inbox = conversation.inbox
     @assistant = assistant
 
+    # this ensures that the conversation is not processed if the assistant limits are reached
+    return ActiveRecord::Base.transaction { process_action('handoff') } unless @inbox.captain_active?
+
     ActiveRecord::Base.transaction do
       generate_and_process_response
     end

enterprise/app/services/enterprise/message_templates/hook_execution_service.rb

@@ -10,6 +10,9 @@ module Enterprise::MessageTemplates::HookExecutionService
   end
 
   def should_process_captain_response?
-    conversation.pending? && message.incoming? && inbox.captain_active?
+    # we don't check the captain usage limits here intentionally
+    # as the usage limits are checked in the job itself
+    # this is to ensure that the handoff can be done there if it's required
+    conversation.pending? && message.incoming? && inbox.captain_assistant.present?
   end
 end