feat: 优化统计和步数详情页面，添加活动等级计算和展示，更新压力计组件以支持HRV值直接显示

app/(tabs)/statistics.tsx

@@ -12,17 +12,14 @@ import { Colors } from '@/constants/Colors';
 import { getTabBarBottomPadding } from '@/constants/TabBar';
 import { useAppDispatch, useAppSelector } from '@/hooks/redux';
 import { useAuthGuard } from '@/hooks/useAuthGuard';
-import { notificationService } from '@/services/notifications';
 import { selectHealthDataByDate, setHealthData } from '@/store/healthSlice';
 import { fetchDailyMoodCheckins, selectLatestMoodRecordByDate } from '@/store/moodSlice';
 import { fetchDailyNutritionData, selectNutritionSummaryByDate } from '@/store/nutritionSlice';
 import { fetchTodayWaterStats, selectTodayStats } from '@/store/waterSlice';
 import { getMonthDaysZh, getTodayIndexInMonth } from '@/utils/date';
-import { ensureHealthPermissions, fetchHealthDataForDate, fetchRecentHRV } from '@/utils/health';
+import { ensureHealthPermissions, fetchHealthDataForDate } from '@/utils/health';
 import { getTestHealthData } from '@/utils/mockHealthData';
-import { WaterNotificationHelpers } from '@/utils/notificationHelpers';
 import { calculateNutritionGoals } from '@/utils/nutrition';
-import AsyncStorage from '@react-native-async-storage/async-storage';
 import { useBottomTabBarHeight } from '@react-navigation/bottom-tabs';
 import { useFocusEffect } from '@react-navigation/native';
 import dayjs from 'dayjs';
@@ -412,121 +409,6 @@ export default function ExploreScreen() {
     };
   }, [loadAllData, currentSelectedDate]);
 
-  // 检查压力水平并发送通知
-  const checkStressLevelAndNotify = React.useCallback(async () => {
-    try {
-      console.log('开始检查压力水平...');
-
-      // 确保有健康权限
-      const hasPermission = await ensureHealthPermissions();
-      if (!hasPermission) {
-        console.log('没有健康权限，跳过压力检查');
-        return;
-      }
-
-      // 获取最近2小时内的实时HRV数据
-      const recentHRV = await fetchRecentHRV(2);
-      console.log('获取到的最近2小时HRV值:', recentHRV);
-
-      if (recentHRV === null || recentHRV === undefined) {
-        console.log('没有最近的HRV数据，跳过压力检查');
-        return;
-      }
-
-      // 判断压力水平（HRV值低于60表示压力过大）
-      if (recentHRV < 60) {
-        console.log(`检测到压力过大，HRV值: ${recentHRV}，准备发送鼓励通知`);
-
-        // 检查是否在过去2小时内已经发送过压力提醒，避免重复打扰
-        const lastNotificationKey = '@last_stress_notification';
-        const lastNotificationTime = await AsyncStorage.getItem(lastNotificationKey);
-        const now = new Date().getTime();
-        const twoHoursAgo = now - (2 * 60 * 60 * 1000); // 2小时前
-
-        if (lastNotificationTime && parseInt(lastNotificationTime) > twoHoursAgo) {
-          console.log('2小时内已发送过压力提醒，跳过本次通知');
-          return;
-        }
-
-        // 随机选择一条鼓励性消息
-        const encouragingMessages = [
-          '放松一下吧 🌸\n检测到您的压力指数较高，不妨暂停一下，做几个深呼吸，或者来一段轻松的普拉提练习。您的健康最重要！',
-          '该休息一下了 🧘‍♀️\n您的身体在提醒您需要放松。试试冥想、散步或听听舒缓的音乐，让心情平静下来。',
-          '压力山大？我们来帮您 💆‍♀️\n高压力对健康不利，建议您做一些放松运动，比如瑜伽或普拉提，释放身心压力。',
-          '关爱自己，从现在开始 💝\n检测到您可能承受较大压力，记得给自己一些时间，做喜欢的事情，保持身心健康。',
-          '深呼吸，一切都会好的 🌈\n压力只是暂时的，试试腹式呼吸或简单的伸展运动，让身体和心灵都得到放松。'
-        ];
-
-        const randomMessage = encouragingMessages[Math.floor(Math.random() * encouragingMessages.length)];
-        const [title, body] = randomMessage.split('\n');
-
-        // 发送鼓励性推送通知
-        await notificationService.sendImmediateNotification({
-          title: title,
-          body: body,
-          data: {
-            type: 'stress_alert',
-            hrvValue: recentHRV,
-            timestamp: new Date().toISOString(),
-            url: '/mood/calendar' // 点击通知跳转到心情页面
-          },
-          sound: true,
-          priority: 'high'
-        });
-
-        // 记录通知发送时间
-        await AsyncStorage.setItem(lastNotificationKey, now.toString());
-
-        console.log('压力提醒通知已发送');
-      } else {
-        console.log(`压力水平正常，HRV值: ${recentHRV}`);
-      }
-    } catch (error) {
-      console.error('检查压力水平失败:', error);
-    }
-  }, []);
-
-  // 检查喝水目标并发送通知
-  const checkWaterGoalAndNotify = React.useCallback(async () => {
-    try {
-      console.log('开始检查喝水目标完成情况...');
-
-      // 获取最新的喝水统计数据
-      if (!todayWaterStats || !todayWaterStats.dailyGoal || todayWaterStats.dailyGoal <= 0) {
-        console.log('没有设置喝水目标或目标无效，跳过喝水检查');
-        return;
-      }
-
-      // 获取用户名
-      const userName = userProfile?.name || '朋友';
-      const currentHour = new Date().getHours();
-
-      // 构造今日统计数据
-      const waterStatsForCheck = {
-        totalAmount: todayWaterStats.totalAmount || 0,
-        dailyGoal: todayWaterStats.dailyGoal,
-        completionRate: todayWaterStats.completionRate || 0
-      };
-
-      // 调用喝水通知检查函数
-      const notificationSent = await WaterNotificationHelpers.checkWaterGoalAndNotify(
-        userName,
-        waterStatsForCheck,
-        currentHour
-      );
-
-      if (notificationSent) {
-        console.log('喝水提醒通知已发送');
-      } else {
-        console.log('无需发送喝水提醒通知');
-      }
-
-    } catch (error) {
-      console.error('检查喝水目标失败:', error);
-    }
-  }, [todayWaterStats, userProfile]);
-
-
 
   // 日期点击时，加载对应日期数据
   const onSelectDate = React.useCallback((index: number, date: Date) => {