Fix options PnL backfill matching when the same contract is traded twice.

Match exchange history by sheets and open time so an earlier close is not overwritten with the later trade's PnL.

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

lib/hedge_plan/hedge_plan_settle_lib.py

@@ -109,7 +109,11 @@ def resolve_option_leg_realized_pnl(
         except Exception:
             rows = None
     if rows:
-        info = resolve_option_close_from_history(rows, open_ms=open_ms)
+        close_ms = _parse_opened_ms(leg.get("closed_at"))
+        sheets = _sf(leg.get("size")) or _sf(leg.get("sheets"))
+        info = resolve_option_close_from_history(
+            rows, open_ms=open_ms, close_ms=close_ms, sheets=sheets
+        )
         pnl = _sf((info or {}).get("realized_pnl")) if info else None
         if pnl is not None:
             return round(float(pnl), 4), "exchange"