fix: Update max_turns config (#12604)

Pass max_turns in the run config than during the initialization.

---------

Co-authored-by: Shivam Mishra <scm.mymail@gmail.com>

config/initializers/ai_agents.rb

@@ -15,7 +15,6 @@ Rails.application.config.after_initialize do
         config.openai_api_base = api_base
       end
       config.default_model = model
-      config.max_turns = 30
       config.debug = false
     end
   end

enterprise/app/services/captain/assistant/agent_runner_service.rb

@@ -23,7 +23,7 @@ class Captain::Assistant::AgentRunnerService
     message_to_process = extract_last_user_message(message_history)
     runner = Agents::Runner.with_agents(*agents)
     runner = add_callbacks_to_runner(runner) if @callbacks.any?
-    result = runner.run(message_to_process, context: context)
+    result = runner.run(message_to_process, context: context, max_turns: 100)
 
     process_agent_result(result)
   rescue StandardError => e

spec/enterprise/services/captain/assistant/agent_runner_service_spec.rb

@@ -90,7 +90,8 @@ RSpec.describe Captain::Assistant::AgentRunnerService do
 
       expect(mock_runner).to receive(:run).with(
         'I need help with my account',
-        context: expected_context
+        context: expected_context,
+        max_turns: 100
       )
 
       service.generate_response(message_history: message_history)