Write api key

app.py

@@ -216,7 +216,7 @@ def save_dataset_to_hub(df: pd.DataFrame, dataset_name: str) -> tuple[bool, str]
         dataset.push_to_hub(
             dataset_name,
             private=True,
-            token=os.getenv("HUGGINGFACE_API_KEY")
+            token=os.getenv("HUGGINGFACE_WRITE_API_KEY")
         )
         
         return True, f"Successfully saved {len(df_to_save)} steps to {dataset_name}"