feat: implement sync icon + pricelist badge UI improvements

- Replace text 'Online/Offline' with SVG icons in sync status
- Change sync button to circular arrow icon
- Add dropdown menu with push changes, full sync, and last sync status
- Add pricelist version badge to configuration page
- Load pricelist version via /api/pricelists/latest on DOMContentLoaded

This completes task 1 of Phase 2.5 (UI Improvements) as specified in CLAUDE.md

web/templates/base.html

@@ -60,6 +60,75 @@
             setTimeout(() => el.innerHTML = '', 3000);
         }
 
+        // Dropdown functionality
+        document.addEventListener('DOMContentLoaded', function() {
+            const dropdownButton = document.getElementById('sync-dropdown-button');
+            const dropdownMenu = document.getElementById('sync-dropdown-menu');
+
+            if (dropdownButton && dropdownMenu) {
+                dropdownButton.addEventListener('click', function(e) {
+                    e.stopPropagation();
+                    dropdownMenu.classList.toggle('hidden');
+                });
+
+                // Close dropdown when clicking outside
+                document.addEventListener('click', function(e) {
+                    if (!dropdownButton.contains(e.target) && !dropdownMenu.contains(e.target)) {
+                        dropdownMenu.classList.add('hidden');
+                    }
+                });
+            }
+
+            checkDbStatus();
+            checkWritePermission();
+        });
+
+        function pushPendingChanges() {
+            fetch('/api/sync/push', {
+                method: 'POST',
+                headers: {
+                    'Content-Type': 'application/json'
+                }
+            })
+            .then(response => response.json())
+            .then(data => {
+                if (data.success) {
+                    showToast('Синхронизировано: ' + data.synced + ' изменений', 'success');
+                } else {
+                    showToast('Ошибка: ' + (data.error || 'неизвестная ошибка'), 'error');
+                }
+                htmx.trigger('#sync-status', 'refresh');
+                document.getElementById('sync-dropdown-menu').classList.add('hidden');
+            })
+            .catch(error => {
+                showToast('Ошибка синхронизации: ' + error.message, 'error');
+                document.getElementById('sync-dropdown-menu').classList.add('hidden');
+            });
+        }
+
+        function fullSync() {
+            fetch('/api/sync/all', {
+                method: 'POST',
+                headers: {
+                    'Content-Type': 'application/json'
+                }
+            })
+            .then(response => response.json())
+            .then(data => {
+                if (data.success) {
+                    showToast('Полная синхронизация завершена', 'success');
+                } else {
+                    showToast('Ошибка: ' + (data.error || 'неизвестная ошибка'), 'error');
+                }
+                htmx.trigger('#sync-status', 'refresh');
+                document.getElementById('sync-dropdown-menu').classList.add('hidden');
+            })
+            .catch(error => {
+                showToast('Ошибка полной синхронизации: ' + error.message, 'error');
+                document.getElementById('sync-dropdown-menu').classList.add('hidden');
+            });
+        }
+
         async function checkDbStatus() {
             try {
                 const resp = await fetch('/api/db-status');
@@ -96,10 +165,24 @@
             }
         }
 
-        document.addEventListener('DOMContentLoaded', function() {
-            checkDbStatus();
-            checkWritePermission();
-        });
+        // Load last sync time for dropdown
+        async function loadLastSyncTime() {
+            try {
+                const resp = await fetch('/api/sync/status');
+                const data = await resp.json();
+                if (data.last_pricelist_sync) {
+                    const date = new Date(data.last_pricelist_sync);
+                    document.getElementById('last-sync-time').textContent = date.toLocaleString('ru-RU');
+                } else {
+                    document.getElementById('last-sync-time').textContent = 'Нет данных';
+                }
+            } catch(e) {
+                console.error('Failed to load last sync time:', e);
+            }
+        }
+
+        // Load last sync time when page loads
+        document.addEventListener('DOMContentLoaded', loadLastSyncTime);
     </script>
 </body>
 </html>

web/templates/configs.html

@@ -10,6 +10,15 @@
         </button>
     </div>
 
+    <div id="pricelist-badge" class="mt-4 text-sm text-gray-600 hidden">
+        <span class="bg-blue-100 text-blue-800 px-2 py-1 rounded-full">
+            <svg class="w-4 h-4 inline mr-1" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M9 12h6m-6 4h6m2 5H7a2 2 0 01-2-2V5a2 2 0 012-2h5.586a1 1 0 01.707.293l5.414 5.414a1 1 0 01.293.707V19a2 2 0 01-2 2z"></path>
+            </svg>
+            Активный прайслист: <span id="pricelist-version">-</span>
+        </span>
+    </div>
+
     <div id="configs-list">
         <div class="text-center py-8 text-gray-500">Загрузка...</div>
     </div>
@@ -398,7 +407,25 @@ async function loadConfigs() {
     }
 }
 
-document.addEventListener('DOMContentLoaded', loadConfigs);
+document.addEventListener('DOMContentLoaded', function() {
+    loadConfigs();
+
+    // Load latest pricelist version for badge
+    loadLatestPricelistVersion();
+});
+
+async function loadLatestPricelistVersion() {
+    try {
+        const resp = await fetch('/api/pricelists/latest');
+        if (resp.ok) {
+            const pricelist = await resp.json();
+            document.getElementById('pricelist-version').textContent = pricelist.version;
+            document.getElementById('pricelist-badge').classList.remove('hidden');
+        }
+    } catch(e) {
+        console.error('Failed to load pricelist version:', e);
+    }
+}
 </script>
 {{end}}
 

web/templates/partials/sync_status.html

@@ -1,37 +1,58 @@
 {{define "sync_status"}}
-<div class="flex items-center gap-2">
+<div class="flex items-center gap-2 relative">
     {{if .IsOffline}}
     <span class="flex items-center gap-1 text-red-600" title="Offline">
-        <span class="w-2 h-2 bg-red-500 rounded-full"></span>
-        <span class="text-xs">Offline</span>
+        <svg class="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+            <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M12 9v2m0 4h.01m-6.938 4h13.856c1.54 0 2.502-1.667 1.732-3L13.732 4c-.77-1.333-2.694-1.333-3.464 0L3.34 16c-.77 1.333.192 3 1.732 3z"></path>
+        </svg>
     </span>
     {{else}}
     <span class="flex items-center gap-1 text-green-600" title="Online">
-        <span class="w-2 h-2 bg-green-500 rounded-full"></span>
-        <span class="text-xs">Online</span>
+        <svg class="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+            <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M9 12l2 2 4-4m6 2a9 9 0 11-18 0 9 9 0 0118 0z"></path>
+        </svg>
     </span>
     {{end}}
 
     {{if gt .PendingCount 0}}
-    <span class="bg-yellow-100 text-yellow-800 px-2 py-0.5 rounded-full text-xs font-medium">
-        {{.PendingCount}} pending
+    <span class="bg-yellow-100 text-yellow-800 px-2 py-0.5 rounded-full text-xs font-medium flex items-center gap-1">
+        <svg class="w-3 h-3" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+            <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M12 9v2m0 4h.01m-6.938 4h13.856c1.54 0 2.502-1.667 1.732-3L13.732 4c-.77-1.333-2.694-1.333-3.464 0L3.34 16c-.77 1.333.192 3 1.732 3z"></path>
+        </svg>
+        {{.PendingCount}}
     </span>
-    <button hx-post="/api/sync/push"
-            hx-swap="none"
-            hx-on::after-request="
-                if(event.detail.successful) {
-                    const resp = JSON.parse(event.detail.xhr.response);
-                    if(resp.success) {
-                        showToast('Синхронизировано: ' + resp.synced + ' изменений', 'success');
-                    } else {
-                        showToast('Ошибка: ' + (resp.error || 'неизвестная ошибка'), 'error');
-                    }
-                    htmx.trigger('#sync-status', 'refresh');
-                }
-            "
-            class="text-blue-600 hover:text-blue-800 text-xs underline cursor-pointer">
-        Sync
-    </button>
     {{end}}
+
+    <!-- Dropdown button for sync actions -->
+    <div class="relative">
+        <button id="sync-dropdown-button" class="text-gray-600 hover:text-gray-800 text-xs flex items-center gap-1">
+            <svg class="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M4 4v5h.582m15.356 2A8.001 8.001 0 004.582 9m0 0H9m11 11v-5h-.581m0 0a8.003 8.003 0 01-15.357-2m15.357 2H15"></path>
+            </svg>
+        </button>
+
+        <!-- Dropdown menu -->
+        <div id="sync-dropdown-menu" class="absolute right-0 mt-2 w-48 bg-white rounded-md shadow-lg py-1 hidden z-10">
+            <button onclick="pushPendingChanges()" class="block px-4 py-2 text-sm text-gray-700 hover:bg-gray-100 w-full text-left">
+                <svg class="w-4 h-4 inline mr-2" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                    <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M4 4v5h.582m15.356 2A8.001 8.001 0 004.582 9m0 0H9m11 11v-5h-.581m0 0a8.003 8.003 0 01-15.357-2m15.357 2H15"></path>
+                </svg>
+                Push changes
+            </button>
+            <button onclick="fullSync()" class="block px-4 py-2 text-sm text-gray-700 hover:bg-gray-100 w-full text-left">
+                <svg class="w-4 h-4 inline mr-2" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                    <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M4 4v5h.582m15.356 2A8.001 8.001 0 004.582 9m0 0H9m11 11v-5h-.581m0 0a8.003 8.003 0 01-15.357-2m15.357 2H15"></path>
+                </svg>
+                Full sync
+            </button>
+            <div class="border-t border-gray-100 my-1"></div>
+            <div class="px-4 py-2 text-xs text-gray-500">
+                <svg class="w-4 h-4 inline mr-2" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                    <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M12 8v4l3 3m6-3a9 9 0 11-18 0 9 9 0 0118 0z"></path>
+                </svg>
+                Последняя синхронизация: <span id="last-sync-time">-</span>
+            </div>
+        </div>
+    </div>
 </div>
 {{end}}