feat(ios): 添加用药计划Widget小组件支持

- 创建medicineExtension小组件，支持iOS桌面显示用药计划
- 实现App Group数据共享机制，支持主应用与小组件数据同步
- 添加AppGroupUserDefaultsManager原生模块，提供跨应用数据访问能力
- 添加WidgetManager和WidgetCenterHelper，实现小组件刷新控制
- 在medications页面和Redux store中集成小组件数据同步逻辑
- 支持实时同步今日用药状态（待服用/已服用/已错过）到小组件
- 配置App Group entitlements (group.com.anonymous.digitalpilates)
- 更新Xcode项目配置，添加WidgetKit和SwiftUI框架支持

ios/WidgetManager.m

@@ -0,0 +1,55 @@
+//
+//  WidgetManager.m
+//  OutLive
+//
+//  Created by AI Assistant on 2025/11/13.
+//
+
+#import "WidgetManager.h"
+#import "OutLive-Swift.h"
+
+@implementation WidgetManager
+
+RCT_EXPORT_MODULE();
+
++ (BOOL)requiresMainQueueSetup {
+    return NO;
+}
+
+RCT_EXPORT_METHOD(reloadTimelines:(RCTPromiseResolveBlock)resolve 
+                  rejecter:(RCTPromiseRejectBlock)reject) {
+    
+    @try {
+        if (@available(iOS 14.0, *)) {
+            // 刷新所有小组件
+            [WidgetCenterHelper reloadAllTimelinesIfAvailable];
+            
+            // 也可以只刷新特定的medicine小组件
+            [WidgetCenterHelper reloadTimelinesIfAvailableOfKind:@"medicine"];
+            
+            resolve(@"Widget timelines reloaded successfully");
+        } else {
+            reject(@"IOS_VERSION_ERROR", @"WidgetKit is not available on this iOS version", nil);
+        }
+    } @catch (NSException *exception) {
+        reject(@"RELOAD_TIMELINES_ERROR", exception.reason, nil);
+    }
+}
+
+RCT_EXPORT_METHOD(reloadTimeline:(NSString *)widgetKind 
+                  resolver:(RCTPromiseResolveBlock)resolve 
+                  rejecter:(RCTPromiseRejectBlock)reject) {
+    
+    @try {
+        if (@available(iOS 14.0, *)) {
+            [WidgetCenterHelper reloadTimelinesIfAvailableOfKind:widgetKind];
+            resolve([NSString stringWithFormat:@"Widget timeline reloaded for kind: %@", widgetKind]);
+        } else {
+            reject(@"IOS_VERSION_ERROR", @"WidgetKit is not available on this iOS version", nil);
+        }
+    } @catch (NSException *exception) {
+        reject(@"RELOAD_TIMELINE_ERROR", exception.reason, nil);
+    }
+}
+
+@end