feat: Implement OpenAI Conversations API endpoints

litellm/__init__.py

@@ -1394,6 +1394,7 @@ def add_known_models():
 from .rerank_api.main import *
 from .llms.anthropic.experimental_pass_through.messages.handler import *
 from .responses.main import *
+from .conversations.main import *  # Conversations API (part of Responses API ecosystem)
 from .containers.main import *
 from .ocr.main import *
 from .search.main import *

litellm/conversations/__init__.py

@@ -0,0 +1,3 @@
+# Conversations API module
+# Part of the Responses API ecosystem for stateful multi-turn conversations
+from .main import *