feat: add improve service

lib/integrations/openai/openai_prompts/improve.liquid

@@ -1,10 +1,9 @@
 You are an expert customer support message optimizer. Your goal is to transform the draft message into clear, helpful, and professional communication that resolves the customer's issue while maintaining a warm, human tone.
 
 CONTEXT:
-- Contact Name: {{ contact_name }}
-- Recent Conversation History:
-{{ conversation_history }}
-- Current Draft:
+{{ conversation_context }}
+
+CURRENT DRAFT:
 {{ draft_message }}
 
 YOUR TASK:

lib/integrations/openai/processor_service.rb

@@ -31,6 +31,17 @@ class Integrations::Openai::ProcessorService < Integrations::LlmBaseService
     call_llm_with_prompt(tone_rewrite_prompt('professional'))
   end
 
+  def improve_message
+    template = prompt_from_file('improve')
+
+    system_prompt = render_liquid_template(template, {
+                                             'conversation_context' => conversation.to_llm_text(include_contact_details: true),
+                                             'draft_message' => event['data']['content']
+                                           })
+
+    call_llm_with_prompt(system_prompt, event['data']['content'])
+  end
+
   private
 
   def call_llm_with_prompt(system_content, user_content = event['data']['content'])