Restructure omni services and add Chatwoot research snapshot

research/chatwoot/lib/llm/config.rb

@@ -0,0 +1,49 @@
+require 'ruby_llm'
+
+module Llm::Config
+  DEFAULT_MODEL = 'gpt-4.1-mini'.freeze
+
+  class << self
+    def initialized?
+      @initialized ||= false
+    end
+
+    def initialize!
+      return if @initialized
+
+      configure_ruby_llm
+      @initialized = true
+    end
+
+    def reset!
+      @initialized = false
+    end
+
+    def with_api_key(api_key, api_base: nil)
+      context = RubyLLM.context do |config|
+        config.openai_api_key = api_key
+        config.openai_api_base = api_base
+      end
+
+      yield context
+    end
+
+    private
+
+    def configure_ruby_llm
+      RubyLLM.configure do |config|
+        config.openai_api_key = system_api_key if system_api_key.present?
+        config.openai_api_base = openai_endpoint.chomp('/') if openai_endpoint.present?
+        config.logger = Rails.logger
+      end
+    end
+
+    def system_api_key
+      InstallationConfig.find_by(name: 'CAPTAIN_OPEN_AI_API_KEY')&.value
+    end
+
+    def openai_endpoint
+      InstallationConfig.find_by(name: 'CAPTAIN_OPEN_AI_ENDPOINT')&.value
+    end
+  end
+end