fix: add Railtie for better Rails integration

- Add proper Rails integration with automatic GPT inflection
- Fix naming conventions for Rails applications
- Support chat_gpt file naming convention
- Make configuration work seamlessly in initializers

Fixes #13

Author: nagstler

lib/chatgpt.rb

@@ -6,6 +6,9 @@
 require_relative 'chatgpt/configuration'
 require_relative 'chatgpt/client'
 
+# Automatically load Railtie when used with Rails
+require_relative 'chatgpt/railtie' if defined?(Rails)
+
 module ChatGPT
   class << self
     def configuration

lib/chatgpt/railtie.rb

@@ -0,0 +1,11 @@
+# lib/chatgpt/railtie.rb
+module ChatGPT
+    class Railtie < Rails::Railtie
+      initializer "chatgpt.configure_rails_initialization" do
+        # Register inflection for Rails apps
+        ActiveSupport::Inflector.inflections(:en) do |inflect|
+          inflect.acronym 'GPT'
+        end
+      end
+    end
+end