feat: 更新应用名称及图标，新增HRV数据管理，优化营养记录展示

app/(tabs)/statistics.tsx

@@ -30,6 +30,7 @@ import { useSafeAreaInsets } from 'react-native-safe-area-context';
 export default function ExploreScreen() {
   const theme = (useColorScheme() ?? 'light') as 'light' | 'dark';
   const colorTokens = Colors[theme];
+
   const stepGoal = useAppSelector((s) => s.user.profile?.dailyStepsGoal) ?? 2000;
   const userProfile = useAppSelector((s) => s.user.profile);
 
@@ -68,6 +69,12 @@ export default function ExploreScreen() {
   // HealthKit: 每次页面聚焦都拉取今日数据
   const [stepCount, setStepCount] = useState<number | null>(null);
   const [activeCalories, setActiveCalories] = useState<number | null>(null);
+  // 睡眠时长（分钟）
+  const [sleepDuration, setSleepDuration] = useState<number | null>(null);
+  // HRV数据
+  const [hrvValue, setHrvValue] = useState<number>(69);
+  const [hrvStatus, setHrvStatus] = useState<'放松' | '正常' | '紧张'>('正常');
+
   const [isLoading, setIsLoading] = useState(false);
   // 用于触发动画重置的 token（当日期或数据变化时更新）
   const [animToken, setAnimToken] = useState(0);
@@ -108,6 +115,21 @@ export default function ExploreScreen() {
       if (latestRequestKeyRef.current === requestKey) {
         setStepCount(data.steps);
         setActiveCalories(Math.round(data.activeEnergyBurned));
+        setSleepDuration(data.sleepDuration);
+
+        // 模拟HRV数据（实际应用中应从HealthKit获取）
+        const simulatedHrv = Math.floor(Math.random() * 80) + 30; // 30-110ms范围
+        setHrvValue(simulatedHrv);
+
+        // 根据HRV值判断状态
+        if (simulatedHrv >= 70) {
+          setHrvStatus('放松');
+        } else if (simulatedHrv >= 40) {
+          setHrvStatus('正常');
+        } else {
+          setHrvStatus('紧张');
+        }
+
         setAnimToken((t) => t + 1);
       } else {
         console.log('忽略过期健康数据请求结果，key=', requestKey, '最新key=', latestRequestKeyRef.current);
@@ -187,6 +209,61 @@ export default function ExploreScreen() {
           <Text style={styles.sectionTitle}>健康数据</Text>
           <WeightHistoryCard />
 
+          {/* HRV压力监测卡片 */}
+          <View style={[styles.hrvCard, { backgroundColor: '#F0F7FF' }]}>
+            <View style={styles.hrvHeader}>
+              <View style={styles.hrvIconContainer}>
+                <Ionicons name="heart" size={24} color="#3B82F6" />
+              </View>
+              <Text style={styles.hrvTitle}>压力监测</Text>
+            </View>
+
+            <View style={styles.hrvContent}>
+              <View style={styles.hrvValueContainer}>
+                <Text style={styles.hrvValue}>{hrvValue}</Text>
+                <Text style={styles.hrvUnit}>毫秒</Text>
+              </View>
+
+              <View style={[styles.hrvStatus,
+              hrvStatus === '放松' ? { backgroundColor: '#DCFCE7' } :
+                hrvStatus === '正常' ? { backgroundColor: '#FEF3C7' } :
+                  { backgroundColor: '#FEE2E2' }
+              ]}>
+                <Text style={[styles.hrvStatusText,
+                hrvStatus === '放松' ? { color: '#166534' } :
+                  hrvStatus === '正常' ? { color: '#92400E' } :
+                    { color: '#991B1B' }
+                ]}>{hrvStatus}</Text>
+                <Text style={styles.hrvEmoji}>
+                  {hrvStatus === '放松' ? '😌' :
+                    hrvStatus === '正常' ? '😊' :
+                      '😰'}
+                </Text>
+              </View>
+            </View>
+
+            <View style={styles.hrvSliderContainer}>
+              <View style={styles.hrvSliderTrack}>
+                <View style={[styles.hrvSliderProgress, {
+                  width: `${Math.min(100, Math.max(0, (hrvValue / 150) * 100))}%`,
+                  backgroundColor: hrvStatus === '放松' ? '#10B981' :
+                    hrvStatus === '正常' ? '#F59E0B' : '#EF4444'
+                }]} />
+              </View>
+              <View style={styles.hrvLabels}>
+                <Text style={styles.hrvLabel}>放松</Text>
+                <Text style={styles.hrvLabel}>正常</Text>
+                <Text style={styles.hrvLabel}>紧张</Text>
+              </View>
+            </View>
+          </View>
+
+          {/* 查看更多 */}
+          <View style={styles.viewMoreContainer}>
+            <Text style={styles.viewMoreText}>查看更多</Text>
+            <Ionicons name="chevron-forward" size={16} color="#192126" style={styles.viewMoreIcon} />
+          </View>
+
           {/* 标题与日期选择 */}
           <Text style={styles.monthTitle}>{monthTitle}</Text>
           <ScrollView
@@ -549,4 +626,114 @@ const styles = StyleSheet.create({
     padding: 4,
     marginLeft: 8,
   },
+  viewMoreContainer: {
+    flexDirection: 'row',
+    alignItems: 'center',
+    justifyContent: 'center',
+    marginBottom: 16,
+  },
+  viewMoreText: {
+    fontSize: 14,
+    color: '#192126',
+  },
+  viewMoreIcon: {
+    fontSize: 16,
+    color: '#192126',
+    marginLeft: 4,
+  },
+  hrvCard: {
+    backgroundColor: '#F0F7FF',
+    borderRadius: 22,
+    padding: 20,
+    marginBottom: 16,
+    shadowColor: '#000',
+    shadowOffset: {
+      width: 0,
+      height: 2,
+    },
+    shadowOpacity: 0.1,
+    shadowRadius: 8,
+    elevation: 5,
+  },
+  hrvHeader: {
+    flexDirection: 'row',
+    alignItems: 'center',
+    marginBottom: 16,
+  },
+  hrvIconContainer: {
+    width: 40,
+    height: 40,
+    borderRadius: 12,
+    backgroundColor: '#DBEAFE',
+    alignItems: 'center',
+    justifyContent: 'center',
+    marginRight: 12,
+  },
+  hrvTitle: {
+    fontSize: 18,
+    fontWeight: '800',
+    color: '#1E293B',
+  },
+  hrvContent: {
+    flexDirection: 'row',
+    alignItems: 'center',
+    justifyContent: 'space-between',
+    marginBottom: 20,
+  },
+  hrvValueContainer: {
+    flexDirection: 'row',
+    alignItems: 'baseline',
+  },
+  hrvValue: {
+    fontSize: 36,
+    fontWeight: '800',
+    color: '#1E293B',
+    marginRight: 4,
+  },
+  hrvUnit: {
+    fontSize: 16,
+    fontWeight: '600',
+    color: '#64748B',
+  },
+  hrvStatus: {
+    flexDirection: 'row',
+    alignItems: 'center',
+    backgroundColor: '#DCFCE7',
+    paddingHorizontal: 12,
+    paddingVertical: 6,
+    borderRadius: 20,
+  },
+  hrvStatusText: {
+    fontSize: 14,
+    fontWeight: '600',
+    color: '#166534',
+    marginRight: 4,
+  },
+  hrvEmoji: {
+    fontSize: 16,
+  },
+  hrvSliderContainer: {
+    marginTop: 8,
+  },
+  hrvSliderTrack: {
+    height: 8,
+    backgroundColor: '#E2E8F0',
+    borderRadius: 4,
+    marginBottom: 8,
+    overflow: 'hidden',
+  },
+  hrvSliderProgress: {
+    height: '100%',
+    backgroundColor: '#3B82F6',
+    borderRadius: 4,
+  },
+  hrvLabels: {
+    flexDirection: 'row',
+    justifyContent: 'space-between',
+  },
+  hrvLabel: {
+    fontSize: 12,
+    fontWeight: '500',
+    color: '#64748B',
+  },
 });