Improve OKX options sizing, expiry sync, and multi-position accordion UI.

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

lib/exchange/okx_options_lib.py

@@ -644,6 +644,60 @@ def fetch_option_positions(ex: ccxt.okx) -> list[dict[str, Any]]:
         return []
 
 
+def fetch_option_position_history(
+    ex: ccxt.okx,
+    inst_id: str,
+    *,
+    limit: int = 20,
+) -> list[dict[str, Any]]:
+    """OKX 期权历史仓位(含到期结算/平仓)."""
+    inst_id = (inst_id or "").strip()
+    if not inst_id:
+        return []
+    try:
+        resp = ex.private_get_account_positions_history(
+            {
+                "instType": "OPTION",
+                "instId": inst_id,
+                "limit": str(max(1, min(int(limit), 100))),
+            }
+        )
+        rows = (resp or {}).get("data") or []
+        return [r for r in rows if isinstance(r, dict)]
+    except Exception:
+        return []
+
+
+def resolve_option_close_from_history(
+    hist_rows: list[dict[str, Any]],
+    *,
+    open_ms: int | None = None,
+) -> dict[str, Any] | None:
+    """从 positions-history 中选取最近一条有效平仓/结算记录."""
+    best: dict[str, Any] | None = None
+    best_utime = -1
+    for row in hist_rows:
+        u_ms = _safe_float(row.get("uTime"))
+        if u_ms is None or u_ms <= 0:
+            continue
+        if open_ms is not None and u_ms < int(open_ms) - 60_000:
+            continue
+        if u_ms > best_utime:
+            best = row
+            best_utime = int(u_ms)
+    if not best:
+        return None
+    realized = _safe_float(best.get("realizedPnl"))
+    if realized is None:
+        realized = _safe_float(best.get("pnl"))
+    return {
+        "close_quote": _safe_float(best.get("closeAvgPx")),
+        "realized_pnl": realized,
+        "close_ms": best_utime,
+        "pos_id": str(best.get("posId") or "").strip() or None,
+    }
+
+
 def fetch_options_unrealized_pnl_usdc(ex: ccxt.okx) -> float | None:
     """期权持仓未实现盈亏合计(USDC,统计口径与 USDT 1:1)."""
     total = 0.0