fixed endpoint issues

Author: Mesh-ach

src/webapp/routers/data.py

@@ -1375,8 +1375,9 @@ def get_model_cards(
 
     try:
         volume_path = f"/Volumes/staging_sst_01/{query_result[0][0].name}_gold/gold_volume/model-card-{model_name}.pdf"
-        with w.files.download(volume_path) as stream:
-            pdf_bytes = stream.read()
+        response = w.files.download(volume_path)
+        pdf_bytes = response.read()
+        
     except Exception as e:
         raise HTTPException(500, detail=f"Failed to fetch model card: {e}")