align attacks_json serialization with filtered attack columns (#251)

Author: digitalghost-dev

card_data/pipelines/defs/extract/tcgdex/extract_cards.py

@@ -97,9 +97,8 @@ def create_card_dataframe(extract_card_info: list) -> pl.DataFrame:
         # Flatten types (list of strings)
         flat["types"] = ", ".join(card.get("types", []))
 
-        flat["attacks_json"] = json.dumps(card.get("attacks", []), ensure_ascii=False)
-
         attacks = [atk for atk in card.get("attacks", []) if atk.get("name")]
+        flat["attacks_json"] = json.dumps(attacks, ensure_ascii=False)
         for i, atk in enumerate(attacks):
             prefix = f"attack_{i + 1}"
             flat[f"{prefix}_name"] = atk.get("name")