fix: keyword arg for _cluster_is_within_age_window

news_mcp/jobs/poller.py

@@ -275,7 +275,7 @@ class ClusterPoller:
             return []
         lookback = max_age if max_age > 0 else 72
         all_recent = self.store.get_latest_clusters_all_topics(ttl_hours=lookback, limit=500)
-        recent = [c for c in all_recent if _cluster_is_within_age_window(c, max_age)]
+        recent = [c for c in all_recent if _cluster_is_within_age_window(c, max_age_hours=max_age)]
         self.logger.info("pre-seeded: existing_clusters=%d max_age_h=%.1f", len(recent), max_age)
         return recent