Update app.py

app.py

@@ -16,7 +16,7 @@ HUGGINGFACE_API_KEY = os.getenv("HUGGINGFACE_API_KEY")  # Load from environment
 # Hugging Face API details
 API_URL = "https://api-inference.huggingface.co/pipeline/feature-extraction/sentence-transformers/all-MiniLM-L6-v2"
 HEADERS = {
-    "Authorization": "Bearer HUGGINGFACE_API_KEY",
+    "Authorization": f"Bearer {HUGGINGFACE_API_KEY}",
     "Content-Type": "application/json; charset=UTF-8",
     }