FIX: start zeitwerk structure

lib/discourse_ai/engine.rb

@@ -4,5 +4,6 @@ module ::DiscourseAi
   class Engine < ::Rails::Engine
     engine_name PLUGIN_NAME
     isolate_namespace DiscourseAi
+    config.autoload_paths << File.join(config.root, "lib")
   end
 end

plugin.rb

@@ -58,7 +58,6 @@ after_initialize do
   require_relative "lib/modules/ai_helper/entry_point"
   require_relative "lib/modules/embeddings/entry_point"
   require_relative "lib/modules/summarization/entry_point"
-  require_relative "lib/modules/ai_bot/entry_point"
   require_relative "lib/discourse_automation/llm_triage"
 
   [