feat(modal): add rollout telemetry foundation

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

assets/js/order-center.js

@@ -98,18 +98,28 @@
     function openDetail(orderNumber) {
         if (!detailModal || !detailBody) return;
         detailOrderNumber = orderNumber;
+        var telemetry = window.AksrtModalTelemetry;
+        var telemetryId = telemetry && typeof telemetry.start === "function" ? telemetry.start("orders") : "";
+        function telemetryMark(event) {
+            if (telemetry && telemetryId && typeof telemetry.mark === "function") telemetry.mark(telemetryId, event);
+        }
         detailBody.innerHTML = '<p class="muted-2-color">加载中…</p>';
         detailFooter.innerHTML = "";
         detailModal.hidden = false;
         document.documentElement.classList.add("aksrt-modal-open");
+        telemetryMark("shell");
         request(orderPath(orderNumber), undefined, "GET").then(function (result) {
             if (orderNumber !== detailOrderNumber) return;
             if (!result.success || !result.data) {
+                telemetryMark("error");
                 detailBody.innerHTML = '<p class="c-red">' + escapeHtml(result.message || "订单不存在") + "</p>";
                 return;
             }
+            telemetryMark("first-content");
             renderDetail(result.data);
+            telemetryMark("ready");
         }).catch(function () {
+            telemetryMark("error");
             detailBody.innerHTML = '<p class="c-red">网络错误，请稍后重试</p>';
         });
     }