feat(ui): 统一健康卡片标题图标并优化语音录音稳定性

- 为所有健康数据卡片添加对应功能图标，提升视觉一致性
- 将“小鱼干”文案统一为“能量值”，并更新获取说明
- 语音录音页面增加组件卸载保护、错误提示与资源清理逻辑
- 个人页支持毛玻璃按钮样式，默认用户名置空
- 新增血氧、饮食、心情、压力、睡眠、步数、体重等图标资源
- 升级 react-native-purchases 至 9.4.3
- 移除 useAuthGuard 调试日志

components/weight/WeightHistoryCard.tsx

@@ -6,6 +6,7 @@ import { useColorScheme } from '@/hooks/useColorScheme';
 import { fetchWeightHistory } from '@/store/userSlice';
 import { BMI_CATEGORIES } from '@/utils/bmi';
 import { Ionicons } from '@expo/vector-icons';
+import { Image } from 'expo-image';
 import { LinearGradient } from 'expo-linear-gradient';
 import React, { useEffect, useState } from 'react';
 import {
@@ -72,6 +73,10 @@ export function WeightHistoryCard() {
     return (
       <TouchableOpacity style={styles.card} onPress={navigateToWeightRecords} activeOpacity={0.8}>
         <View style={styles.cardHeader}>
+          <Image
+            source={require('@/assets/images/icons/icon-weight.png')}
+            style={styles.iconSquare}
+          />
           <Text style={styles.cardTitle}>体重记录</Text>
         </View>
 
@@ -156,6 +161,10 @@ export function WeightHistoryCard() {
   return (
     <TouchableOpacity style={styles.card} onPress={navigateToWeightRecords} activeOpacity={0.8}>
       <View style={styles.cardHeader}>
+        <Image
+          source={require('@/assets/images/icons/icon-weight.png')}
+          style={styles.iconSquare}
+        />
         <Text style={styles.cardTitle}>体重记录</Text>
         <TouchableOpacity
           style={styles.addButton}
@@ -345,17 +354,18 @@ const styles = StyleSheet.create({
     alignItems: 'center',
   },
   iconSquare: {
-    width: 30,
-    height: 30,
+    width: 14,
+    height: 14,
     borderRadius: 8,
     alignItems: 'center',
     justifyContent: 'center',
-    marginRight: 2,
+    marginRight: 4,
   },
   cardTitle: {
     fontSize: 14,
     color: '#192126',
     flex: 1,
+    fontWeight: '600'
   },
   headerButtons: {
     flexDirection: 'row',