updated the model weight path

app.py

@@ -33,7 +33,9 @@ if not os.path.exists(model_path):
     print("Model file not found! Downloading...")
     try:
         gdown.download(GDRIVE_URL, model_path, quiet=False, use_cookies=False)
-        print("Model downloaded successfully.")
+        if not os.path.exists(model_path):
+            raise Exception("Model download failed: File not found after download.")
+        print("✅ Model downloaded successfully.")
     except Exception as e:
         print(f"Failed to download model: {e}")