持仓卡与中控快照增加期权杠杆倍数展示。

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

lib/common/static/options_position_cards.js

@@ -88,6 +88,38 @@
     return "";
   }
 
+  function isCoinPos(p) {
+    const mode = String((p && p.margin_mode) || "").toLowerCase();
+    if (mode === "coin") return true;
+    if (mode === "usdc") return false;
+    const ccy = String((p && p.premium_ccy) || "").toUpperCase();
+    if (ccy === "USDC") return false;
+    if (ccy === "BTC" || ccy === "ETH") return true;
+    const inst = String((p && p.inst_id) || "");
+    return inst.indexOf("-USD-") >= 0 && inst.indexOf("_UM") < 0;
+  }
+
+  function calcPosLeverage(p) {
+    const direct = Number(p && (p.contract_leverage != null ? p.contract_leverage : p.leverage));
+    if (Number.isFinite(direct) && direct > 0) return direct;
+    const idx = Number(p && p.idx_px);
+    const amt = Number(p && p.eth_amount);
+    const prem = Number(p && p.premium_paid);
+    if (!Number.isFinite(idx) || !Number.isFinite(amt) || !Number.isFinite(prem) || amt <= 0 || prem <= 0) {
+      return null;
+    }
+    if (isCoinPos(p)) {
+      return Math.round((amt / prem) * 10) / 10;
+    }
+    return Math.round((idx * amt) / prem * 10) / 10;
+  }
+
+  function fmtPosLeverage(p) {
+    const lev = calcPosLeverage(p);
+    if (lev == null || Number.isNaN(Number(lev))) return "—";
+    return "约 " + Number(lev).toFixed(1) + "×";
+  }
+
   function fmtPxSz(px, sz, tickSz) {
     if (px === null || px === undefined || Number.isNaN(Number(px))) return "—";
     let price = fmtOptionPx(px, tickSz);
@@ -224,6 +256,7 @@
       '<span class="pos-meta-item">持仓来源: ' + sourceText(p) + "</span>" +
       '<span class="pos-meta-item">行权价: ' + fmt(p.strike, 0) + "</span>" +
       '<span class="pos-meta-item">张数: ' + fmt(p.pos, 0) + " · 币量 " + fmt(p.eth_amount, 4) + "</span>" +
+      '<span class="pos-meta-item" title="名义价值÷权利金,测算用">杠杆倍数: ' + fmtPosLeverage(p) + "</span>" +
       (expAttr
         ? '<span class="pos-meta-item">到期倒计时: ' + expiryCdHtml(expAttr) + "</span>"
         : "") +