Synchronize pair cast metadata

row_normalization.py

@@ -142,11 +142,36 @@ def synchronize_pair_side_metadata(pair: dict[str, Any]) -> dict[str, Any]:
     return pair
 
 
+def synchronize_pair_cast_metadata(pair: dict[str, Any]) -> dict[str, Any]:
+    descriptors = pair.get("shared_cast_descriptors")
+    if isinstance(descriptors, list):
+        descriptor_list = [str(item).strip() for item in descriptors if str(item or "").strip()]
+        descriptor_text = "; ".join(descriptor_list)
+    else:
+        descriptor_text = str(descriptors or "").strip()
+        descriptor_list = [descriptor_text] if descriptor_text else []
+    if not descriptor_text:
+        return pair
+
+    options = pair.get("options") if isinstance(pair.get("options"), dict) else {}
+    row_keys = ["hardcore_row"]
+    if options.get("softcore_cast") == "same_as_hardcore":
+        row_keys.append("softcore_row")
+    for row_key in row_keys:
+        row = pair.get(row_key)
+        if not isinstance(row, dict):
+            continue
+        row["cast_descriptor_text"] = descriptor_text
+        row["cast_descriptors"] = list(descriptor_list)
+    return pair
+
+
 def normalize_pair_metadata(pair: dict[str, Any], *, active_trigger: str = "") -> dict[str, Any]:
     trigger = str(active_trigger or "").strip()
     triggers = _trigger_tuple(trigger)
     synchronize_pair_row_outputs(pair)
     synchronize_pair_side_metadata(pair)
+    synchronize_pair_cast_metadata(pair)
     for key in ("softcore_prompt", "hardcore_prompt"):
         if key in pair:
             pair[key] = sanitize_prompt_text(pair.get(key, ""), triggers=triggers)