fix hf tag

engine.py

@@ -439,10 +439,10 @@ class FunctionGemmaEngine:
                 token=oauth_token
             )
             tags = ["functiongemma", "functiongemma-tuning-lab"]
-            if (info.card_data) {
+            if info.card_data.tags:
                 tags = info.card_data.tags
                 tags.append("functiongemma-tuning-lab")
-            }
+
             metadata_update(repo_id, {"tags": tags}, overwrite=True, token=oauth_token)
 
             return f"✅ Success! Model uploaded to: {repo_url}"