refactor(DomainsNewManager): integrate LastSaved component and streamline button placement for improved UI consistency and user experience

frontend/src/DomainsNewManager.jsx

@@ -47,6 +47,7 @@ import FormField from './components/FormField.jsx';
 import Tooltip from './components/Tooltip.jsx';
 import Pagination from './components/Pagination.jsx';
 import AddItemModal from './components/AddItemModal.jsx';
+import LastSaved from './components/LastSaved.jsx';
 import { useToast } from './components/ToastContainer.jsx';
 
 const API_URL = '/api';
@@ -514,47 +515,39 @@ function DomainsNewManager() {
 
       <PageHeader
         title="Домены"
+        meta={<LastSaved timestamp={lastModified} variant="compact" />}
         actions={(
-          <div className="d-flex align-items-center gap-2">
-            <button
-              className="btn btn-primary"
-              onClick={() => setAddModalOpen(true)}
-              title="Добавить новый домен"
-            >
-              <IconPlus className="me-1" size={18} />
-              Добавить
-            </button>
-            <PageHeaderActions
-              loading={loading}
-              onPreview={handlePreviewDiff}
-              disablePreview={loading || items.length === 0}
-              onRefresh={fetchItems}
-              disableRefresh={loading}
-              onImport={handleImport}
-              onExport={handleExport}
-              disableExport={items.length === 0}
-              onClear={clearInvalid}
-              disableClear={items.length === 0}
-              onClearCommunities={() => { if (!filterCommunity) { setError('Выберите community в фильтре для очистки'); return; } setClearCommunitiesOpen(true); }}
-              disableClearCommunities={items.length === 0 || !filterCommunity}
-              onSave={handleSaveChanges}
-              disableSave={loading}
-              onHistory={() => setHistoryOpen(true)}
-              onOnlineUpdate={() => setWsOpen(true)}
-              onBackgroundUpdate={async () => {
-                try {
-                  const res = await fetch('/api/update-bgp/background', { method: 'POST' });
-                  const data = await res.json().catch(() => ({}));
-                  if (!res.ok || data.ok === false) {
-                    throw new Error(data?.message || `HTTP ${res.status}`);
-                  }
-                  notifyMutationSuccess('Фоновое обновление запущено', data);
-                } catch (e) {
-                  window.notify?.error('Не удалось запустить фоновое обновление', String(e));
+          <PageHeaderActions
+            loading={loading}
+            onPreview={handlePreviewDiff}
+            disablePreview={loading || items.length === 0}
+            onRefresh={fetchItems}
+            disableRefresh={loading}
+            onImport={handleImport}
+            onExport={handleExport}
+            disableExport={items.length === 0}
+            onClear={clearInvalid}
+            disableClear={items.length === 0}
+            onClearCommunities={() => { if (!filterCommunity) { setError('Выберите community в фильтре для очистки'); return; } setClearCommunitiesOpen(true); }}
+            disableClearCommunities={items.length === 0 || !filterCommunity}
+            onSave={handleSaveChanges}
+            disableSave={loading}
+            onHistory={() => setHistoryOpen(true)}
+            lastModified={lastModified}
+            onOnlineUpdate={() => setWsOpen(true)}
+            onBackgroundUpdate={async () => {
+              try {
+                const res = await fetch('/api/update-bgp/background', { method: 'POST' });
+                const data = await res.json().catch(() => ({}));
+                if (!res.ok || data.ok === false) {
+                  throw new Error(data?.message || `HTTP ${res.status}`);
                 }
-              }}
+                notifyMutationSuccess('Фоновое обновление запущено', data);
+              } catch (e) {
+                window.notify?.error('Не удалось запустить фоновое обновление', String(e));
+              }
+            }}
           />
-          </div>
         )}
       />
 
@@ -669,6 +662,16 @@ function DomainsNewManager() {
                     </div>
                   </div>
                 </div>
+                <div className="col-auto">
+                  <button
+                    className="btn btn-primary"
+                    onClick={() => setAddModalOpen(true)}
+                    title="Добавить новый домен"
+                  >
+                    <IconPlus className="me-1" size={18} />
+                    Добавить
+                  </button>
+                </div>
               </div>
             </div>
           </div>