fix(ui): preserve scroll position on customer profile feed

ui/operator/app.js

@@ -1,4 +1,4 @@
-const state = {
+const state = {
   user: 'admin',
   role: 'admin',
   token: null,
@@ -1235,7 +1235,18 @@ function renderCustomerSpotlight() {
     );
   }
   if (target && customer) {
+    const listEl = target.querySelector('.customer-history-list');
+    const scrollPos = listEl ? listEl.scrollTop : 0;
+    const h = target.offsetHeight;
+    if (h > 0) target.style.minHeight = h + 'px';
+
     target.innerHTML = customerSpotlightMarkup(customer);
+
+    if (h > 0) target.style.minHeight = '';
+    const newListEl = target.querySelector('.customer-history-list');
+    if (newListEl && scrollPos > 0) {
+      newListEl.scrollTop = scrollPos;
+    }
   }
   renderCustomerProfilePage();
 }
@@ -1277,7 +1288,22 @@ function renderCustomerProfilePage() {
       : `Клиент ${customer.customer_id} • омниканальный профиль`;
   }
 
+  const listEl = target.querySelector('.customer-history-list');
+  const scrollPos = listEl ? listEl.scrollTop : 0;
+  const pageScroll = window.scrollY || document.documentElement.scrollTop;
+  const h = target.offsetHeight;
+  if (h > 0) target.style.minHeight = h + 'px';
+
   target.innerHTML = customerSpotlightMarkup(customer, { pageView: true });
+
+  if (h > 0) target.style.minHeight = '';
+  const newListEl = target.querySelector('.customer-history-list');
+  if (newListEl && scrollPos > 0) {
+    newListEl.scrollTop = scrollPos;
+  }
+  if (pageScroll > 0 && pageScroll > window.scrollY) {
+    window.scrollTo(window.scrollX, pageScroll);
+  }
 }
 
 function syncCustomerFormUi() {