Add live expiry countdown for options positions on instance page and trading hub.

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

manual_trading_hub/static/dashboard.js

@@ -118,6 +118,12 @@
     return chips;
   }
 
+  function dashOptionsExpiryCd(expMs) {
+    const ms = expMs != null && expMs !== "" ? String(expMs) : "";
+    if (!ms) return "—";
+    return `<span class="opt-expiry-cd" data-opt-exp-ms="${esc(ms)}">—</span>`;
+  }
+
   function renderDashboardOptionsTable(positions) {
     const pos = Array.isArray(positions) ? positions : [];
     if (!pos.length) return "";
@@ -132,6 +138,7 @@
         return `<tr>
           <td title="${esc(p.inst_id || "")}">${esc(shortDashInst(p.inst_id))}</td>
           <td>${esc(optType)}</td>
+          <td>${dashOptionsExpiryCd(p.exp_time_ms != null ? p.exp_time_ms : p.exp_time)}</td>
           <td>${p.idx_px != null ? fmt(p.idx_px, 0) : "—"}</td>
           <td>${p.expiry_be_px != null ? fmt(p.expiry_be_px, 0) : "—"}</td>
           <td>${p.close_be_px != null ? fmt(p.close_be_px, 0) : "—"}</td>
@@ -144,7 +151,7 @@
       <div class="dash-table-wrap dash-options-table-wrap">
         <table class="dash-table dash-options-table">
           <thead><tr>
-            <th>合约</th><th>类型</th><th>指数</th><th>到期平衡</th><th>平掉回本</th><th>浮盈</th>
+            <th>合约</th><th>类型</th><th>到期倒计时</th><th>指数</th><th>到期平衡</th><th>平掉回本</th><th>浮盈</th>
           </tr></thead>
           <tbody>${rows}</tbody>
         </table>
@@ -303,6 +310,9 @@
       })
       .join("");
     bindDashboardExpand();
+    if (window.OptionsExpiryCountdown && OptionsExpiryCountdown.ensureTimer) {
+      OptionsExpiryCountdown.ensureTimer();
+    }
   }
 
   function renderTrades(trades, accounts) {