Update app.py

app.py

@@ -15,7 +15,7 @@ from openai import OpenAI
 # Set up OpenAI client (Hugging Face Inference API)
 client = OpenAI(
     base_url="https://router.huggingface.co/featherless-ai/v1",
-    api_key=os.getenv("HF_API_KEY"),
+    api_key=os.getenv("HF_TOKEN"),
 )
 
 # Vectorstore setup (embedding + ChromaDB)