feat(i18n): 全面实现应用核心功能模块的国际化支持

- 新增 i18n 翻译资源，覆盖睡眠、饮水、体重、锻炼、用药 AI 识别、步数、健身圆环、基础代谢及设置等核心模块
- 重构相关页面及组件（如 SleepDetail, WaterDetail, WorkoutHistory 等）使用 `useI18n` 钩子替换硬编码文本
- 升级 `utils/date` 工具库与 `DateSelector` 组件，支持基于语言环境的日期格式化与显示
- 完善登录页、注销流程及权限申请弹窗的双语提示信息
- 优化部分页面的 UI 细节与字体样式以适配多语言显示

app/water/settings.tsx

@@ -21,9 +21,11 @@ import {
 } from 'react-native';
 
 import { HeaderBar } from '@/components/ui/HeaderBar';
+import { useI18n } from '@/hooks/useI18n';
 import { useSafeAreaTop } from '@/hooks/useSafeAreaWithPadding';
 
 const WaterSettings: React.FC = () => {
+  const { t } = useI18n();
   const safeAreaTop = useSafeAreaTop()
   const theme = (useColorScheme() ?? 'light') as 'light' | 'dark';
   const colorTokens = Colors[theme];
@@ -74,7 +76,10 @@ const WaterSettings: React.FC = () => {
     setGoalModalVisible(false);
 
     // 这里可以添加保存到本地存储或发送到后端的逻辑
-    Alert.alert('设置成功', `每日饮水目标已设置为 ${tempGoal}ml`);
+    Alert.alert(
+      t('waterSettings.alerts.goalSuccess.title'),
+      t('waterSettings.alerts.goalSuccess.message', { amount: tempGoal })
+    );
   };
 
   // 处理快速添加默认值确认
@@ -84,9 +89,15 @@ const WaterSettings: React.FC = () => {
 
     try {
       await setQuickWaterAmount(tempQuickAdd);
-      Alert.alert('设置成功', `快速添加默认值已设置为 ${tempQuickAdd}ml`);
+      Alert.alert(
+        t('waterSettings.alerts.quickAddSuccess.title'),
+        t('waterSettings.alerts.quickAddSuccess.message', { amount: tempQuickAdd })
+      );
     } catch {
-      Alert.alert('设置失败', '无法保存快速添加默认值，请重试');
+      Alert.alert(
+        t('waterSettings.alerts.quickAddFailed.title'),
+        t('waterSettings.alerts.quickAddFailed.message')
+      );
     }
   };
 
@@ -101,7 +112,7 @@ const WaterSettings: React.FC = () => {
       const reminderSettings = await getWaterReminderSettings();
       setWaterReminderSettings(reminderSettings);
     } catch (error) {
-      console.error('加载用户偏好设置失败:', error);
+      console.error('Failed to load user preferences:', error);
     }
   }, []);
 
@@ -132,7 +143,7 @@ const WaterSettings: React.FC = () => {
       <View style={styles.decorativeCircle2} />
 
       <HeaderBar
-        title="饮水设置"
+        title={t('waterSettings.title')}
         onBack={() => {
           router.back();
         }}
@@ -156,8 +167,8 @@ const WaterSettings: React.FC = () => {
                     <Ionicons name="flag-outline" size={20} color="#9370DB" />
                   </View>
                   <View style={styles.settingsMenuItemContent}>
-                    <Text style={[styles.settingsMenuItemTitle, { color: colorTokens.text }]}>每日饮水目标</Text>
-                    <Text style={[styles.settingsMenuItemValue, { color: colorTokens.textSecondary }]}>{currentWaterGoal}ml</Text>
+                    <Text style={[styles.settingsMenuItemTitle, { color: colorTokens.text }]}>{t('waterSettings.sections.dailyGoal')}</Text>
+                    <Text style={[styles.settingsMenuItemValue, { color: colorTokens.textSecondary }]}>{currentWaterGoal}{t('waterSettings.labels.ml')}</Text>
                   </View>
                 </View>
                 <Ionicons name="chevron-forward" size={20} color="#CCCCCC" />
@@ -169,11 +180,11 @@ const WaterSettings: React.FC = () => {
                     <Ionicons name="add-outline" size={20} color="#9370DB" />
                   </View>
                   <View style={styles.settingsMenuItemContent}>
-                    <Text style={[styles.settingsMenuItemTitle, { color: colorTokens.text }]}>快速添加默认值</Text>
+                    <Text style={[styles.settingsMenuItemTitle, { color: colorTokens.text }]}>{t('waterSettings.sections.quickAdd')}</Text>
                     <Text style={[styles.settingsMenuItemSubtitle, { color: colorTokens.textSecondary }]}>
-                      设置点击"+"按钮时添加的默认饮水量
+                      {t('waterSettings.descriptions.quickAdd')}
                     </Text>
-                    <Text style={[styles.settingsMenuItemValue, { color: colorTokens.textSecondary }]}>{quickAddAmount}ml</Text>
+                    <Text style={[styles.settingsMenuItemValue, { color: colorTokens.textSecondary }]}>{quickAddAmount}{t('waterSettings.labels.ml')}</Text>
                   </View>
                 </View>
                 <Ionicons name="chevron-forward" size={20} color="#CCCCCC" />
@@ -185,12 +196,19 @@ const WaterSettings: React.FC = () => {
                     <Ionicons name="notifications-outline" size={20} color="#3498DB" />
                   </View>
                   <View style={styles.settingsMenuItemContent}>
-                    <Text style={[styles.settingsMenuItemTitle, { color: colorTokens.text }]}>喝水提醒</Text>
+                    <Text style={[styles.settingsMenuItemTitle, { color: colorTokens.text }]}>{t('waterSettings.sections.reminder')}</Text>
                     <Text style={[styles.settingsMenuItemSubtitle, { color: colorTokens.textSecondary }]}>
-                      设置定时提醒您补充水分
+                      {t('waterSettings.descriptions.reminder')}
                     </Text>
                     <Text style={[styles.settingsMenuItemValue, { color: colorTokens.textSecondary }]}>
-                      {waterReminderSettings.enabled ? `${waterReminderSettings.startTime}-${waterReminderSettings.endTime}, 每${waterReminderSettings.interval}分钟` : '已关闭'}
+                      {waterReminderSettings.enabled
+                        ? t('waterSettings.status.reminderEnabled', {
+                            startTime: waterReminderSettings.startTime,
+                            endTime: waterReminderSettings.endTime,
+                            interval: waterReminderSettings.interval
+                          })
+                        : t('waterSettings.labels.disabled')
+                      }
                     </Text>
                   </View>
                 </View>
@@ -211,7 +229,7 @@ const WaterSettings: React.FC = () => {
         <Pressable style={styles.modalBackdrop} onPress={() => setGoalModalVisible(false)} />
         <View style={styles.modalSheet}>
           <View style={styles.modalHandle} />
-          <Text style={[styles.modalTitle, { color: colorTokens.text }]}>每日饮水目标</Text>
+          <Text style={[styles.modalTitle, { color: colorTokens.text }]}>{t('waterSettings.sections.dailyGoal')}</Text>
           <View style={styles.pickerContainer}>
             <Picker
               selectedValue={tempGoal}
@@ -219,7 +237,7 @@ const WaterSettings: React.FC = () => {
               style={styles.picker}
             >
               {Array.from({ length: 96 }, (_, i) => 500 + i * 100).map(goal => (
-                <Picker.Item key={goal} label={`${goal}ml`} value={goal} />
+                <Picker.Item key={goal} label={`${goal}${t('waterSettings.labels.ml')}`} value={goal} />
               ))}
             </Picker>
           </View>
@@ -228,13 +246,13 @@ const WaterSettings: React.FC = () => {
               onPress={() => setGoalModalVisible(false)}
               style={[styles.modalBtn, { backgroundColor: colorTokens.pageBackgroundEmphasis }]}
             >
-              <Text style={[styles.modalBtnText, { color: colorTokens.text }]}>取消</Text>
+              <Text style={[styles.modalBtnText, { color: colorTokens.text }]}>{t('waterSettings.buttons.cancel')}</Text>
             </Pressable>
             <Pressable
               onPress={handleGoalConfirm}
               style={[styles.modalBtn, styles.modalBtnPrimary, { backgroundColor: colorTokens.primary }]}
             >
-              <Text style={[styles.modalBtnText, styles.modalBtnTextPrimary, { color: colorTokens.onPrimary }]}>确定</Text>
+              <Text style={[styles.modalBtnText, styles.modalBtnTextPrimary, { color: colorTokens.onPrimary }]}>{t('waterSettings.buttons.confirm')}</Text>
             </Pressable>
           </View>
         </View>
@@ -250,7 +268,7 @@ const WaterSettings: React.FC = () => {
         <Pressable style={styles.modalBackdrop} onPress={() => setQuickAddModalVisible(false)} />
         <View style={styles.modalSheet}>
           <View style={styles.modalHandle} />
-          <Text style={[styles.modalTitle, { color: colorTokens.text }]}>快速添加默认值</Text>
+          <Text style={[styles.modalTitle, { color: colorTokens.text }]}>{t('waterSettings.sections.quickAdd')}</Text>
           <View style={styles.pickerContainer}>
             <Picker
               selectedValue={tempQuickAdd}
@@ -258,7 +276,7 @@ const WaterSettings: React.FC = () => {
               style={styles.picker}
             >
               {Array.from({ length: 41 }, (_, i) => 50 + i * 10).map(amount => (
-                <Picker.Item key={amount} label={`${amount}ml`} value={amount} />
+                <Picker.Item key={amount} label={`${amount}${t('waterSettings.labels.ml')}`} value={amount} />
               ))}
             </Picker>
           </View>
@@ -267,13 +285,13 @@ const WaterSettings: React.FC = () => {
               onPress={() => setQuickAddModalVisible(false)}
               style={[styles.modalBtn, { backgroundColor: colorTokens.pageBackgroundEmphasis }]}
             >
-              <Text style={[styles.modalBtnText, { color: colorTokens.text }]}>取消</Text>
+              <Text style={[styles.modalBtnText, { color: colorTokens.text }]}>{t('waterSettings.buttons.cancel')}</Text>
             </Pressable>
             <Pressable
               onPress={handleQuickAddConfirm}
               style={[styles.modalBtn, styles.modalBtnPrimary, { backgroundColor: colorTokens.primary }]}
             >
-              <Text style={[styles.modalBtnText, styles.modalBtnTextPrimary, { color: colorTokens.onPrimary }]}>确定</Text>
+              <Text style={[styles.modalBtnText, styles.modalBtnTextPrimary, { color: colorTokens.onPrimary }]}>{t('waterSettings.buttons.confirm')}</Text>
             </Pressable>
           </View>
         </View>