Show option bid as price/size and option leverage on plan and trades.

Co-authored-by: Cursor <cursoragent@cursor.com>

backend/app/api/trades.py

@@ -101,6 +101,36 @@ def _move_points(g: dict, fills: list) -> float | None:
     return round(float(close_px) - e, 2)
 
 
+def _option_entry_px(fills: list) -> float | None:
+    for row in fills:
+        f = dict(row) if not isinstance(row, dict) else row
+        if str(f.get("leg") or "") != "option" or str(f.get("action") or "") != "open":
+            continue
+        try:
+            v = float(f.get("fill_px") or 0)
+            if v > 0:
+                return v
+        except (TypeError, ValueError):
+            pass
+        break
+    return None
+
+
+def _option_leverage(g: dict, fills: list) -> float | None:
+    """开仓期权杠杆 = 开仓指数 ÷ 期权开仓均价（与选约门限口径一致）。"""
+    from ..strategy.selection import option_leverage
+
+    try:
+        entry = float(g.get("entry_index_px") or 0)
+    except (TypeError, ValueError):
+        return None
+    opt_px = _option_entry_px(fills)
+    if entry <= 0 or opt_px is None:
+        return None
+    lev = option_leverage(entry, opt_px)
+    return round(float(lev), 1) if lev is not None else None
+
+
 def _enrich_group(g: dict, fills: list) -> dict:
     summary = summarize_fills_pnl(fills)
     # LIVE：优先 groups.realized_pnl（已按交易所回写，含资金费）
@@ -124,6 +154,7 @@ def _enrich_group(g: dict, fills: list) -> dict:
     mp = _move_points(g, fills)
     g["move_points"] = mp
     g["close_index_px"] = _close_index_px(g, fills)
+    g["option_leverage"] = _option_leverage(g, fills)
     return g