Show option/perp PnL and fee-deducted net in trade details.

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

backend/app/sim/matcher.py

@@ -483,6 +483,17 @@ class Matcher:
         )
 
         net = perp_pnl + opt_pnl - pf.fee - of.fee
+        # 组已累计开仓手续费；实现净盈亏扣开+平全部手续费
+        open_fees = float(
+            (
+                self.db.fetchone(
+                    "SELECT fees FROM groups WHERE group_id=?", (group_id,)
+                )
+                or {"fees": 0}
+            )["fees"]
+            or 0
+        )
+        net_after_all_fees = perp_pnl + opt_pnl - open_fees - pf.fee - of.fee
 
         now = int(time.time() * 1000)
         with self.db._lock:
@@ -535,7 +546,7 @@ class Matcher:
             self.db._conn.execute(
                 """UPDATE groups SET status=?, close_at_ms=?, close_reason=?, realized_pnl=?,
                    fees=?, slip_cost=?, note=NULL WHERE group_id=?""",
-                ("closed", now, reason, net, fees, slip, group_id),
+                ("closed", now, reason, net_after_all_fees, fees, slip, group_id),
             )
             self.db._conn.execute(
                 """UPDATE positions SET
@@ -554,7 +565,9 @@ class Matcher:
                 "reason": reason,
                 "perp_pnl": perp_pnl,
                 "option_pnl": opt_pnl,
-                "net": net,
+                "net": net_after_all_fees,
+                "fees_open": open_fees,
+                "fees_close": pf.fee + of.fee,
                 "close_sequence": ["option", "perp"],
                 "cash_delta": opt_cash + perp_pnl - pf.fee,
                 "option_close_bid": float(close_bid),