Auto-size hub order popup iframe so trade form shows without scrollbars.

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

manual_trading_hub/static/app.js

@@ -458,12 +458,30 @@
     modal.classList.toggle("is-loading", !!loading);
   }
 
+  function applyOrderPopupFrameHeight(height) {
+    const frame = document.getElementById("order-popup-frame");
+    const wrap = document.querySelector(".order-popup-frame-wrap");
+    if (!frame || !wrap) return;
+    const maxH = Math.max(320, window.innerHeight - 96);
+    const h = Math.min(Math.max(Number(height) || 0, 320), maxH);
+    frame.style.height = h + "px";
+    wrap.style.height = h + "px";
+  }
+
+  function resetOrderPopupFrameHeight() {
+    const frame = document.getElementById("order-popup-frame");
+    const wrap = document.querySelector(".order-popup-frame-wrap");
+    if (frame) frame.style.height = "";
+    if (wrap) wrap.style.height = "";
+  }
+
   function closeOrderPopup() {
     const modal = document.getElementById("order-popup-modal");
     const frame = document.getElementById("order-popup-frame");
     orderPopupUrl = "";
     orderPopupCtx = null;
     if (frame) frame.src = "about:blank";
+    resetOrderPopupFrameHeight();
     if (modal) {
       modal.classList.add("hidden");
       modal.setAttribute("aria-hidden", "true");
@@ -556,7 +574,13 @@
       window.__hubOrderPopupMsgBound = true;
       window.addEventListener("message", (ev) => {
         const d = ev.data;
-        if (!d || d.type !== "hub-order-popup-done") return;
+        if (!d || typeof d !== "object") return;
+        if (d.type === "hub-order-popup-resize") {
+          applyOrderPopupFrameHeight(d.height);
+          setOrderPopupLoading(false);
+          return;
+        }
+        if (d.type !== "hub-order-popup-done") return;
         refreshMonitorBoardNow();
         showToast(
           d.message || (d.ok ? "开仓请求已提交，请查看监控区" : "开仓提交可能失败，请查看表单提示"),