fix: 对接退出登录

app/(tabs)/my.tsx

@@ -16,6 +16,8 @@ import { useTranslation } from 'react-i18next'
 import { PointsIcon, SearchIcon, SettingsIcon } from '@/components/icon'
 import EditProfileDrawer from '@/components/drawer/EditProfileDrawer'
 import Dropdown from '@/components/ui/dropdown'
+import Toast from '@/components/ui/Toast'
+import { signOut } from '@/lib/auth'
 
 const { width: screenWidth } = Dimensions.get('window')
 const GALLERY_GAP = 2
@@ -53,13 +55,44 @@ export default function My() {
     const [profileName, setProfileName] = useState('乔乔乔乔')
 
     // 处理设置菜单选择
-    const handleSettingsSelect = (value: string) => {
+    const handleSettingsSelect = async (value: string) => {
         if (value === 'changePassword') {
             router.push('/changePassword' as any)
         } else if (value === 'language') {
             // 切换语言
             const newLang = i18n.language === 'zh-CN' ? 'en-US' : 'zh-CN'
             i18n.changeLanguage(newLang)
+        } else if (value === 'logout') {
+            // 退出登录
+            console.log('🚪 点击退出登录')
+            const confirmText = i18n.language === 'zh-CN' ? '确定' : 'OK'
+            const cancelText = i18n.language === 'zh-CN' ? '取消' : 'Cancel'
+            const message = i18n.language === 'zh-CN' ? '确定要退出登录吗？' : 'Are you sure you want to logout?'
+
+            Toast.showActionSheet({
+                itemList: [message, confirmText, cancelText]
+            }).then(async (index) => {
+                // index 1 是确定按钮
+                if (index === 1) {
+                    console.log('🚪 开始执行退出登录')
+                    try {
+                        Toast.showLoading({ title: i18n.language === 'zh-CN' ? '退出中...' : 'Logging out...' })
+                        // 调用 better-auth 的 signOut 方法
+                        await signOut()
+                        Toast.hideLoading()
+                        console.log('✅ 退出登录成功，跳转到登录页')
+                        Toast.show(i18n.language === 'zh-CN' ? '退出登录成功' : 'Logged out successfully')
+                        // 跳转到登录页面（注意：路由是 /auth 不是 /login）
+                        router.replace('/auth')
+                    } catch (error) {
+                        Toast.hideLoading()
+                        console.error('❌ 退出登录失败:', error)
+                        Toast.show(i18n.language === 'zh-CN' ? '退出登录失败，请稍后重试' : 'Failed to logout, please try again later')
+                    }
+                }
+            }).catch(() => {
+                console.log('❌ 取消退出登录')
+            })
         }
     }
 
@@ -75,6 +108,7 @@ export default function My() {
     const settingsOptions = [
         { label: t('my.changePassword'), value: 'changePassword' },
         { label: getLanguageLabel(), value: 'language' },
+        { label: t('my.logout'), value: 'logout' },
     ]
 
     return (