Update ui.py

ui.py

@@ -213,7 +213,7 @@ def ui_serve(campaign_id: str, hour: int, segment: str):
     ctx = {"hour": int(hour), "segment": (segment or "").strip() or None}
     m = _seasonal(campaign_id)
     bandit = ThompsonBandit(campaign_id)
-    vid, _ = bandit.sample_arm(ctx, seasonal_fn=m.expected_ctr)
+    vid, _ = bandit.sample_arm(ctx, m.expected_ctr)
     if not vid:
         raise gr.Error("配信可能なバリアントがありません。まずは Generate してください。")