持仓排名多空增加增减合计行

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

ft-app/app/routers/contracts.py

@@ -164,6 +164,13 @@ def contract_detail(
                 "change": r.change,
             })
 
+        pos_totals = {
+            "long": sum(r.change for r in rankings if r.data_type == "long"),
+            "short": sum(r.change for r in rankings if r.data_type == "short"),
+        }
+    else:
+        pos_totals = {"long": 0, "short": 0}
+
     # Predict next trading day amplitude: mean of latest 5 diffs
     # Compute next trading date
     next_date = latest.date + timedelta(days=1) if latest else None
@@ -186,6 +193,7 @@ def contract_detail(
             pos_dates=pos_dates,
             selected_pos_date=selected_date,
             pos_data=pos_data,
+            pos_totals=pos_totals,
             next_amp=next_amp,
             next_date=next_date.strftime("%Y/%-m/%-d") if next_date else None,
             next_weekday=WEEKDAY_ZH.get(next_date.weekday(), "") if next_date else "",