Update app.py

app.py

@@ -7,9 +7,8 @@ import os
 import requests
 
 # 환경변수에서 토큰 가져오기
-HF_API_TOKEN = os.getenv("HF_API_TOKEN")
-if not HF_API_TOKEN:
-    raise ValueError("HF_API_TOKEN not found in environment variables")
+HF_API_TOKEN = os.getenv("HF_API_TOKEN", "HF_API_TOKEN")
+headers = {"Authorization": f"Bearer {HF_API_TOKEN}"}
 
 # Inference API 설정
 API_URL = "https://api-inference.huggingface.co/models/stabilityai/stable-diffusion-xl-base-1.0"