fix: Add cache_folder and token to SentenceTransformer

app.py

@@ -30,7 +30,8 @@ print("✅ Successfully connected to MongoDB Atlas.")
 
 print("Loading embedding model (this may take a while)...")
 embedding_model = SentenceTransformer('all-MiniLM-L6-v2',
-                                      cache_folder='/tmp/model_cache')
+                                      cache_folder='/tmp/model_cache',
+                                      token= hf_token)
 print("✅ Embedding model ('all-MiniLM-L6-v2') has been successfully loaded.")
 
 # --- KODE BARU UNTUK KONEKSI HOSTING (CloudClient) ---