feat: unify sync functionality with event-driven UI updates

- Refactored navbar sync button to dispatch 'sync-completed' event
- Configs page: removed duplicate 'Импорт с сервера' button, added auto-refresh on sync
- Projects page: wrapped initialization in DOMContentLoaded, added auto-refresh on sync
- Pricelists page: added auto-refresh on sync completion
- Consistent UX: all lists update automatically after 'Синхронизация' button click
- Removed code duplication: importConfigsFromServer() function no longer needed
- Event-driven architecture enables easy extension to other pages

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>

web/templates/configs.html

@@ -4,13 +4,10 @@
 <div class="space-y-4">
     <h1 class="text-2xl font-bold">Мои конфигурации</h1>
 
-    <div id="action-buttons" class="mt-4 grid grid-cols-1 sm:grid-cols-2 gap-3">
-        <button onclick="openCreateModal()" class="py-3 bg-blue-600 text-white rounded-lg hover:bg-blue-700 font-medium">
+    <div id="action-buttons" class="mt-4">
+        <button onclick="openCreateModal()" class="w-full sm:w-auto py-3 px-6 bg-blue-600 text-white rounded-lg hover:bg-blue-700 font-medium">
             + Создать новую конфигурацию
         </button>
-        <button id="import-configs-btn" onclick="importConfigsFromServer()" class="py-3 bg-emerald-600 text-white rounded-lg hover:bg-emerald-700 font-medium">
-            Импорт с сервера
-        </button>
     </div>
 
     <div class="mt-4 inline-flex rounded-lg border border-gray-200 overflow-hidden">
@@ -785,44 +782,19 @@ async function loadConfigs() {
     }
 }
 
-async function importConfigsFromServer() {
-    const button = document.getElementById('import-configs-btn');
-    const originalText = button.textContent;
-    button.disabled = true;
-    button.textContent = 'Импорт...';
-
-    try {
-        const resp = await fetch('/api/configs/import', { method: 'POST' });
-        const data = await resp.json();
-
-        if (!resp.ok) {
-            alert('Ошибка импорта: ' + (data.error || 'неизвестная ошибка'));
-            return;
-        }
-
-        alert(
-            'Импорт завершен:\n' +
-            '- Новых: ' + (data.imported || 0) + '\n' +
-            '- Обновлено: ' + (data.updated || 0) + '\n' +
-            '- Пропущено (локальные изменения): ' + (data.skipped || 0)
-        );
-
-        currentPage = 1;
-        await loadConfigs();
-    } catch (e) {
-        alert('Ошибка импорта с сервера');
-    } finally {
-        button.disabled = false;
-        button.textContent = originalText;
-    }
-}
-
 document.addEventListener('DOMContentLoaded', function() {
     applyStatusModeUI();
     loadProjectsForConfigUI().then(loadConfigs);
 
     // Load latest pricelist version for badge
     loadLatestPricelistVersion();
+
+    // Listen for sync completion events from navbar
+    window.addEventListener('sync-completed', function(e) {
+        // Reset pagination and reload configurations list
+        currentPage = 1;
+        loadConfigs();
+    });
 });
 
 document.getElementById('configs-search').addEventListener('input', function(e) {