feat: 优化后台任务管理，添加系统权限和用户偏好的完整检查，增强通知功能

app/(tabs)/statistics.tsx

@@ -15,6 +15,7 @@ import { useAppDispatch, useAppSelector } from '@/hooks/redux';
 import { useAuthGuard } from '@/hooks/useAuthGuard';
 import { useBackgroundTasks } from '@/hooks/useBackgroundTasks';
 import { notificationService } from '@/services/notifications';
+import { backgroundTaskManager } from '@/services/backgroundTaskManager';
 import { selectHealthDataByDate, setHealthData } from '@/store/healthSlice';
 import { fetchDailyMoodCheckins, selectLatestMoodRecordByDate } from '@/store/moodSlice';
 import { fetchDailyNutritionData, selectNutritionSummaryByDate } from '@/store/nutritionSlice';
@@ -37,7 +38,8 @@ import {
   ScrollView,
   StyleSheet,
   Text,
-  View
+  View,
+  TouchableOpacity
 } from 'react-native';
 import { useSafeAreaInsets } from 'react-native-safe-area-context';
 
@@ -618,6 +620,19 @@ export default function ExploreScreen() {
             <View style={styles.headerTextContainer}>
               <Text style={styles.headerTitle}>海豹健康</Text>
             </View>
+
+            {/* 开发环境调试按钮 */}
+            {__DEV__ && (
+              <TouchableOpacity
+                style={styles.debugButton}
+                onPress={async () => {
+                  console.log('🔧 手动触发后台任务测试...');
+                  await backgroundTaskManager.debugExecuteBackgroundTask();
+                }}
+              >
+                <Text style={styles.debugButtonText}>🔧</Text>
+              </TouchableOpacity>
+            )}
           </View>
         </View>
 
@@ -813,6 +828,25 @@ const styles = StyleSheet.create({
     fontWeight: '500',
     color: '#192126',
   },
+  debugButton: {
+    width: 32,
+    height: 32,
+    borderRadius: 16,
+    backgroundColor: '#FF6B6B',
+    alignItems: 'center',
+    justifyContent: 'center',
+    shadowColor: '#000',
+    shadowOffset: {
+      width: 0,
+      height: 2,
+    },
+    shadowOpacity: 0.1,
+    shadowRadius: 4,
+    elevation: 3,
+  },
+  debugButtonText: {
+    fontSize: 12,
+  },
 
 
   sectionTitle: {