feat: ensure HF_HOME env exist

app.py

@@ -8,6 +8,7 @@ REPO_DIR = '/data/repo/'
 USER = os.getenv('HF_USER')
 REPO_URL = os.getenv('HF_REPO_URL')
 ACCESS_TOKEN = os.getenv('HF_ACCESS_TOKEN')
+HF_HOME = os.getenv('HF_HOME')
 AUTH_REPO_URL = REPO_URL.replace('https://', f'https://{USER}:{ACCESS_TOKEN}@')