feat: 新增短链接工具，优化日历提醒功能

1. 新增完整短链接工具服务，包括前端页面、后端API与数据库支持
2. 新增移动端日历提醒工具与鉴权配置
3. 优化日历事件编辑与展示：
   - 添加事件循环重复设置
   - 新增全天事件支持
   - 时间选择器自动对齐15分钟间隔
   - 保存状态加载动画
   - 事件卡片显示重复规则
4. 更新API基础地址与路由配置
5. 新增SSL证书文件与相关工具静态资源

apps/app_calendar_reminder/screens/CalendarScreen.tsx

@@ -28,6 +28,7 @@ export default function CalendarScreen() {
   const [selectedDate, setSelectedDate] = useState<Date | null>(null);
   const [modalVisible, setModalVisible] = useState(false);
   const [selectedEvent, setSelectedEvent] = useState<Event | null>(null);
+  const [saving, setSaving] = useState(false);
 
   const loadEvents = useCallback(async () => {
     try {
@@ -139,10 +140,13 @@ export default function CalendarScreen() {
 
   const handleToggleComplete = async (event: Event) => {
     try {
+      setSaving(true);
       await eventApi.updateEvent(event.id, { completed: !event.completed });
       await loadEvents();
     } catch (error) {
       showError('更新失败', error);
+    } finally {
+      setSaving(false);
     }
   };
 
@@ -170,6 +174,7 @@ export default function CalendarScreen() {
 
   const handleSaveEvent = async (eventData: Partial<Event>) => {
     try {
+      setSaving(true);
       if (selectedEvent) {
         await eventApi.updateEvent(selectedEvent.id, eventData);
       } else {
@@ -184,6 +189,8 @@ export default function CalendarScreen() {
       await loadEvents();
     } catch (error) {
       showError('保存失败', error);
+    } finally {
+      setSaving(false);
     }
   };