feat: wrap HuggingFaceEndpoint in ChatHuggingFace to enable tool support

app.py

@@ -38,11 +38,12 @@ if IS_LOCAL:
         temperature=0,
     )
 else:
-    # When on Hugging Face, use a remote endpoint
-    llm = HuggingFaceEndpoint(
+    # When on Hugging Face, use a remote endpoint wrapped in ChatHuggingFace for tool support
+    llm_base = HuggingFaceEndpoint(
         repo_id = "Qwen/Qwen2.5-Coder-32B-Instruct",
         huggingfacehub_api_token=os.environ.get("HUGGINGFACEHUB_API_TOKEN")
     )
+    llm = ChatHuggingFace(llm=llm_base)
 
 system_prompt = """You are an AI assistant taking the GAIA benchmark. You must output ONLY the final answer. Do not include any explanations, conversational text or formatting. If the answer is a number, output just the number. If it is a list, output a comma-separated list."""