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

components/workout/WorkoutDetailModal.tsx

@@ -46,7 +46,7 @@ interface WorkoutDetailModalProps {
 const SCREEN_HEIGHT = Dimensions.get('window').height;
 const SHEET_MAX_HEIGHT = SCREEN_HEIGHT * 0.9;
 
-const HEART_RATE_CHART_MAX_POINTS = 120;
+const HEART_RATE_CHART_MAX_POINTS = 80;
 
 export function WorkoutDetailModal({
   visible,
@@ -338,7 +338,7 @@ export function WorkoutDetailModal({
                           height={220}
                           fromZero={false}
                           yAxisSuffix="次/分"
-                          withInnerLines
+                          withInnerLines={false}
                           bezier
                           chartConfig={{
                             backgroundColor: '#FFFFFF',
@@ -352,11 +352,6 @@ export function WorkoutDetailModal({
                               strokeWidth: '2',
                               stroke: '#FFFFFF',
                             },
-                            propsForBackgroundLines: {
-                              strokeDasharray: '3,3',
-                              stroke: '#E3E6F4',
-                              strokeWidth: 1,
-                            },
                             fillShadowGradientFromOpacity: 0.1,
                             fillShadowGradientToOpacity: 0.02,
                           }}
@@ -475,14 +470,88 @@ function trimHeartRateSeries(series: WorkoutDetailMetrics['heartRateSeries']) {
     return series;
   }
 
-  const step = Math.ceil(series.length / HEART_RATE_CHART_MAX_POINTS);
-  const reduced = series.filter((_, index) => index % step === 0);
+  // 智能采样算法：保留重要特征点（峰值、谷值、变化率大的点）
+  const result: typeof series = [];
+  const n = series.length;
 
-  if (reduced[reduced.length - 1] !== series[series.length - 1]) {
-    reduced.push(series[series.length - 1]);
+  // 总是保留第一个和最后一个点
+  result.push(series[0]);
+
+  // 计算心率变化率
+  const changeRates: number[] = [];
+  for (let i = 1; i < n; i++) {
+    const prevValue = series[i - 1].value;
+    const currValue = series[i].value;
+    const prevTime = dayjs(series[i - 1].timestamp).valueOf();
+    const currTime = dayjs(series[i].timestamp).valueOf();
+    const timeDiff = Math.max(currTime - prevTime, 1000); // 至少1秒，避免除零
+    const valueDiff = Math.abs(currValue - prevValue);
+    changeRates.push(valueDiff / timeDiff * 1000); // 变化率：每秒变化量
   }
 
-  return reduced;
+  // 计算变化率的阈值（前75%的分位数）
+  const sortedRates = [...changeRates].sort((a, b) => a - b);
+  const thresholdIndex = Math.floor(sortedRates.length * 0.75);
+  const changeThreshold = sortedRates[thresholdIndex] || 0;
+
+  // 识别局部极值点
+  const isLocalExtremum = (index: number): boolean => {
+    if (index === 0 || index === n - 1) return false;
+
+    const prev = series[index - 1].value;
+    const curr = series[index].value;
+    const next = series[index + 1].value;
+
+    // 局部最大值
+    if (curr > prev && curr > next) return true;
+    // 局部最小值
+    if (curr < prev && curr < next) return true;
+
+    return false;
+  };
+
+  // 遍历所有点，选择重要点
+  let minDistance = Math.max(1, Math.floor(n / HEART_RATE_CHART_MAX_POINTS));
+
+  for (let i = 1; i < n - 1; i++) {
+    const shouldKeep =
+      // 1. 是局部极值点
+      isLocalExtremum(i) ||
+      // 2. 变化率超过阈值
+      (i > 0 && changeRates[i - 1] > changeThreshold) ||
+      // 3. 均匀分布的点（确保基本覆盖）
+      (i % minDistance === 0);
+
+    if (shouldKeep) {
+      // 检查与上一个选中点的距离，避免过于密集
+      const lastSelectedIndex = result.length > 0 ?
+        series.findIndex(p => p.timestamp === result[result.length - 1].timestamp) : 0;
+
+      if (i - lastSelectedIndex >= minDistance || isLocalExtremum(i)) {
+        result.push(series[i]);
+      }
+    }
+  }
+
+  // 确保最后一个点被包含
+  if (result[result.length - 1].timestamp !== series[n - 1].timestamp) {
+    result.push(series[n - 1]);
+  }
+
+  // 如果结果仍然太多，进行二次采样
+  if (result.length > HEART_RATE_CHART_MAX_POINTS) {
+    const finalStep = Math.ceil(result.length / HEART_RATE_CHART_MAX_POINTS);
+    const finalResult = result.filter((_, index) => index % finalStep === 0);
+
+    // 确保最后一个点被包含
+    if (finalResult[finalResult.length - 1] !== result[result.length - 1]) {
+      finalResult.push(result[result.length - 1]);
+    }
+
+    return finalResult;
+  }
+
+  return result;
 }
 
 function renderHeartRateZone(zone: HeartRateZoneStat) {
@@ -745,6 +814,7 @@ const styles = StyleSheet.create({
   },
   chartStyle: {
     marginLeft: -10,
+    marginRight: -10,
   },
   chartEmpty: {
     paddingVertical: 32,