日线表格末尾追加次日预测行，展示振幅阈值供交易参考

ft-app/app/routers/contracts.py

@@ -1,4 +1,4 @@
-from datetime import date
+from datetime import date, timedelta
 from fastapi import APIRouter, Depends, Request
 from fastapi.responses import HTMLResponse
 from sqlalchemy.orm import Session
@@ -80,10 +80,15 @@ def contract_detail(request: Request, contract: str, db: Session = Depends(get_d
     latest = bars[0] if bars else None
 
     # 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
+    if next_date and next_date.weekday() >= 5:
+        next_date += timedelta(days=7 - next_date.weekday())
+
+    # Predict next trading day amplitude
     next_amp = None
     if len(bars) >= 5:
         next_amp = round(sum(b.diff for b in bars[:5]) / 5)
-
     template = request.app.state.templates.get_template("contract.html")
     return HTMLResponse(
         template.render(
@@ -94,6 +99,8 @@ def contract_detail(request: Request, contract: str, db: Session = Depends(get_d
             rows=rows,
             latest=latest,
             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 "",
             row_count=len(rows),
         )
     )