feat: Add support for more tool, standardize copilot chat service (#11560)

enterprise/app/services/captain/llm/assistant_chat_service.rb

@@ -21,7 +21,7 @@ class Captain::Llm::AssistantChatService < Llm::BaseOpenAiService
   private
 
   def register_tools
-    @tool_registry = Captain::ToolRegistryService.new(@assistant)
+    @tool_registry = Captain::ToolRegistryService.new(@assistant, user: nil)
     @tool_registry.register_tool(Captain::Tools::SearchDocumentationService)
   end
 
@@ -31,4 +31,8 @@ class Captain::Llm::AssistantChatService < Llm::BaseOpenAiService
       content: Captain::Llm::SystemPromptsService.assistant_response_generator(@assistant.name, @assistant.config['product_name'], @assistant.config)
     }
   end
+
+  def persist_message(message, message_type = 'assistant')
+    # No need to implement
+  end
 end

enterprise/app/services/captain/llm/system_prompts_service.rb

@@ -56,18 +56,18 @@ class Captain::Llm::SystemPromptsService
       SYSTEM_PROMPT_MESSAGE
     end
 
-    def copilot_response_generator(product_name, language)
+    def copilot_response_generator(product_name)
       <<~SYSTEM_PROMPT_MESSAGE
         [Identity]
         You are Captain, a helpful and friendly copilot assistant for support agents using the product #{product_name}. Your primary role is to assist support agents by retrieving information, compiling accurate responses, and guiding them through customer interactions.
         You should only provide information related to #{product_name} and must not address queries about other products or external events.
 
         [Context]
-        You will be provided with the message history between the support agent and the customer. Use this context to understand the conversation flow, identify unresolved queries, and ensure responses are relevant and consistent with previous interactions. Always maintain a coherent and professional tone throughout the conversation.
+        Identify unresolved queries, and ensure responses are relevant and consistent with previous interactions. Always maintain a coherent and professional tone throughout the conversation.
 
         [Response Guidelines]
         - Use natural, polite, and conversational language that is clear and easy to follow. Keep sentences short and use simple words.
-        - Reply in the language the agent is using, if you're not able to detect the language, reply in #{language}.
+        - Reply in the language the agent is using, if you're not able to detect the language.
         - Provide brief and relevant responses—typically one or two sentences unless a more detailed explanation is necessary.
         - Do not use your own training data or assumptions to answer queries. Base responses strictly on the provided information.
         - If the query is unclear, ask concise clarifying questions instead of making assumptions.