feat(orders): embed My Orders inside user center (zibll-style)

Register UC panel tab=orders with full order list/actions UI; route
aksrt_get_orders_page_url and /orders template to profile?tab=orders;
enqueue order assets when the UC orders tab is active.

assets/css/routes/orders.css

@@ -498,3 +498,23 @@ html.dark .aksrt-orders-page__filter-chip.is-active {
     grid-template-columns: 1fr;
   }
 }
+
+/* User-center embedded orders panel */
+.uc-orders-panel.aksrt-orders-page {
+  padding: 0;
+}
+.uc-orders-panel .aksrt-orders-page__tab-badge {
+  display: inline-block;
+  min-width: 1.1em;
+  margin-left: 4px;
+  padding: 0 5px;
+  border-radius: 999px;
+  background: var(--color-danger, #e5484d);
+  color: #fff;
+  font-size: 11px;
+  line-height: 1.4;
+  vertical-align: middle;
+}
+.uc-orders-panel__head {
+  gap: 12px;
+}