feat(i18n): 实现应用国际化支持，添加中英文翻译

- 为所有UI组件添加国际化支持，替换硬编码文本
- 新增useI18n钩子函数统一管理翻译
- 完善中英文翻译资源，覆盖统计、用药、通知设置等模块
- 优化Tab布局使用翻译键值替代静态文本
- 更新药品管理、个人资料编辑等页面的多语言支持

components/WorkoutSummaryCard.tsx

@@ -3,6 +3,7 @@ import dayjs from 'dayjs';
 import { Image } from 'expo-image';
 import { useRouter } from 'expo-router';
 import React, { useCallback, useEffect, useMemo, useRef, useState } from 'react';
+import { useTranslation } from 'react-i18next';
 import { ActivityIndicator, StyleSheet, Text, TouchableOpacity, View, ViewStyle } from 'react-native';
 
 import { AnimatedNumber } from '@/components/AnimatedNumber';
@@ -40,6 +41,7 @@ const DEFAULT_SUMMARY: WorkoutSummary = {
 
 
 export const WorkoutSummaryCard: React.FC<WorkoutSummaryCardProps> = ({ date, style }) => {
+  const { t } = useTranslation();
   const router = useRouter();
   const [summary, setSummary] = useState<WorkoutSummary>(DEFAULT_SUMMARY);
   const [isLoading, setIsLoading] = useState(false);
@@ -145,13 +147,13 @@ export const WorkoutSummaryCard: React.FC<WorkoutSummaryCardProps> = ({ date, st
 
     const label = lastWorkout
       ? getWorkoutTypeDisplayName(lastWorkout.workoutActivityType)
-      : '尚无锻炼数据';
+      : t('statistics.components.workout.noData');
 
     const time = lastWorkout
-      ? `${dayjs(lastWorkout.endDate || lastWorkout.startDate).format('HH:mm')} 更新`
-      : '等待同步';
+      ? `${dayjs(lastWorkout.endDate || lastWorkout.startDate).format('HH:mm')} ${t('statistics.components.workout.updated')}`
+      : t('statistics.components.workout.syncing');
 
-    let source = '来源：等待同步';
+    let source = t('statistics.components.workout.sourceWaiting');
     if (hasWorkouts) {
       const sourceNames = summary.workouts
         .map((workout) => workout.source?.name?.trim() || workout.source?.bundleIdentifier?.trim())
@@ -160,9 +162,11 @@ export const WorkoutSummaryCard: React.FC<WorkoutSummaryCardProps> = ({ date, st
       if (sourceNames.length) {
         const uniqueNames = Array.from(new Set(sourceNames));
         const displayNames = uniqueNames.slice(0, 2).join('、');
-        source = uniqueNames.length > 2 ? `来源：${displayNames} 等` : `来源：${displayNames}`;
+        source = uniqueNames.length > 2 
+          ? t('statistics.components.workout.sourceFormatMultiple', { source: displayNames })
+          : t('statistics.components.workout.sourceFormat', { source: displayNames });
       } else {
-        source = '来源：未知';
+        source = t('statistics.components.workout.sourceUnknown');
       }
     }
 
@@ -184,7 +188,7 @@ export const WorkoutSummaryCard: React.FC<WorkoutSummaryCardProps> = ({ date, st
       source,
       badges: uniqueBadges,
     };
-  }, [summary]);
+  }, [summary, t]);
 
   return (
     <TouchableOpacity
@@ -195,18 +199,18 @@ export const WorkoutSummaryCard: React.FC<WorkoutSummaryCardProps> = ({ date, st
       <View style={styles.headerRow}>
         <View style={styles.titleRow}>
           <Image source={require('@/assets/images/icons/icon-fitness.png')} style={styles.titleIcon} />
-          <Text style={styles.titleText}>近期锻炼</Text>
+          <Text style={styles.titleText}>{t('statistics.components.workout.title')}</Text>
         </View>
       </View>
 
       <View style={styles.metricsRow}>
         <View style={styles.metricItem}>
           <AnimatedNumber value={summary.totalMinutes} resetToken={resetToken} style={styles.metricValue} />
-          <Text style={styles.metricLabel}>分钟</Text>
+          <Text style={styles.metricLabel}>{t('statistics.components.workout.minutes')}</Text>
         </View>
         <View style={styles.metricItem}>
           <AnimatedNumber value={summary.totalCalories} resetToken={resetToken} style={styles.metricValue} />
-          <Text style={styles.metricLabel}>千卡</Text>
+          <Text style={styles.metricLabel}>{t('statistics.components.workout.kcal')}</Text>
         </View>
       </View>