feat(workout): 优化心率图表性能并移除每日总结通知功能

- 重构心率数据采样算法，采用智能采样保留峰值、谷值和变化率大的点
- 减少心率图表最大数据点数和查询限制，提升渲染性能
- 移除图表背景线样式，简化视觉呈现
- 完全移除每日总结通知功能相关代码和调用

app/_layout.tsx

@@ -17,7 +17,7 @@ import { store } from '@/store';
 import { fetchMyProfile, setPrivacyAgreed } from '@/store/userSlice';
 import { createWaterRecordAction } from '@/store/waterSlice';
 import { ensureHealthPermissions, initializeHealthPermissions } from '@/utils/health';
-import { DailySummaryNotificationHelpers, MoodNotificationHelpers, NutritionNotificationHelpers } from '@/utils/notificationHelpers';
+import { MoodNotificationHelpers, NutritionNotificationHelpers } from '@/utils/notificationHelpers';
 import { clearPendingWaterRecords, syncPendingWidgetChanges } from '@/utils/widgetDataSync';
 import React, { useEffect } from 'react';
 
@@ -93,8 +93,6 @@ function Bootstrapper({ children }: { children: React.ReactNode }) {
         await MoodNotificationHelpers.scheduleDailyMoodReminder(profile.name || '');
         console.log('心情提醒已注册');
 
-        await DailySummaryNotificationHelpers.scheduleDailySummaryNotification(profile.name || '')
-
 
         // 初始化快捷动作
         await setupQuickActions();