ATM panel: show ask/bid by position state and live option leverage.

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

frontend/src/pages/Plan.tsx

@@ -22,6 +22,24 @@ function fmtBidLiq(px: number | null | undefined, sz: number | null | undefined)
   return `${fmt(px)}/${s}`;
 }
 
+/** 期权杠杆 = 标的 ÷ 权利金 */
+function optionLevLabel(
+  underlying: number | null | undefined,
+  premium: number | null | undefined,
+) {
+  if (
+    underlying == null ||
+    premium == null ||
+    !Number.isFinite(underlying) ||
+    !Number.isFinite(premium) ||
+    underlying <= 0 ||
+    premium <= 0
+  ) {
+    return "—";
+  }
+  return `${(underlying / premium).toFixed(0)}x`;
+}
+
 function pnlClass(n: number | null | undefined) {
   if (n == null || Number.isNaN(n) || n === 0) return "";
   return n > 0 ? "pos-pnl-profit" : "pos-pnl-loss";
@@ -731,20 +749,58 @@ export default function PlanPage() {
               {open ? "持仓期权" : "期权 ATM"}
               {snap?.pair ? ` @ ${snap.pair.strike}` : ""}
             </h3>
-            <div className="kv">
-              <span>Call 卖一/买一</span>
-              <span className="mono">
-                {fmtTop(snap?.call?.ask, snap?.call?.ask_sz)} /{" "}
-                {fmtTop(snap?.call?.bid, snap?.call?.bid_sz)}
-              </span>
-            </div>
-            <div className="kv">
-              <span>Put 卖一/买一</span>
-              <span className="mono">
-                {fmtTop(snap?.put?.ask, snap?.put?.ask_sz)} /{" "}
-                {fmtTop(snap?.put?.bid, snap?.put?.bid_sz)}
-              </span>
-            </div>
+            {(() => {
+              const under =
+                snap?.index_px ??
+                (snap?.perp?.bid != null && snap?.perp?.ask != null
+                  ? (snap.perp.bid + snap.perp.ask) / 2
+                  : snap?.perp?.mark_px ?? null);
+              const callPx = open ? snap?.call?.bid : snap?.call?.ask;
+              const callSz = open ? snap?.call?.bid_sz : snap?.call?.ask_sz;
+              const putPx = open ? snap?.put?.bid : snap?.put?.ask;
+              const putSz = open ? snap?.put?.bid_sz : snap?.put?.ask_sz;
+              const sideLabel = open ? "买一/流动性" : "卖一/流动性";
+              const callLev = optionLevLabel(under, callPx);
+              const putLev = optionLevLabel(under, putPx);
+              const heldSide = String(pos?.option_side || "").toLowerCase();
+              const heldLev =
+                open && pos?.option_leverage != null
+                  ? `${fmt(pos.option_leverage, 0)}x`
+                  : open && heldSide === "call"
+                    ? callLev
+                    : open && heldSide === "put"
+                      ? putLev
+                      : null;
+              return (
+                <>
+                  <div className="kv">
+                    <span>Call {sideLabel}</span>
+                    <span className="mono">
+                      {fmtTop(callPx, callSz)}
+                      {!open ? ` · 杠杆 ${callLev}` : ""}
+                    </span>
+                  </div>
+                  <div className="kv">
+                    <span>Put {sideLabel}</span>
+                    <span className="mono">
+                      {fmtTop(putPx, putSz)}
+                      {!open ? ` · 杠杆 ${putLev}` : ""}
+                    </span>
+                  </div>
+                  <div className="kv">
+                    <span>实际杠杆</span>
+                    <span className="mono">
+                      {open
+                        ? heldLev ||
+                          (heldSide
+                            ? "—"
+                            : `Call ${callLev} · Put ${putLev}`)
+                        : `Call ${callLev} · Put ${putLev}`}
+                    </span>
+                  </div>
+                </>
+              );
+            })()}
             <div className="kv">
               <span>距现价</span>
               <span className="mono">