feat(provider): 添加 Langfuse 观测平台的集成支持

feat(provider): 添加 Langfuse 观测平台的集成支持

nanobot/providers/openai_compat_provider.py

@@ -4,6 +4,7 @@ from __future__ import annotations
 
 import asyncio
 import hashlib
+import importlib
 import os
 import secrets
 import string
@@ -12,7 +13,15 @@ from collections.abc import Awaitable, Callable
 from typing import TYPE_CHECKING, Any
 
 import json_repair
-from openai import AsyncOpenAI
+
+if os.environ.get("LANGFUSE_SECRET_KEY"):
+    LANGFUSE_AVAILABLE  = importlib.util.find_spec("langfuse") is not None
+    if not LANGFUSE_AVAILABLE:
+        raise ImportError("Langfuse is not available; please install it with `pip install langfuse`")
+
+    from langfuse.openai import AsyncOpenAI
+else:
+    from openai import AsyncOpenAI
 
 from nanobot.providers.base import LLMProvider, LLMResponse, ToolCallRequest