refactor: enhance localization and styling in account deletion flow

- Updated Chinese localization file to include a new "cancel" message for improved user experience during account deletion.
- Adjusted `DeleteAccountCard` footer styling for better alignment and spacing of buttons.
- Modified `auth.ts` to disable freshness check for user deletion, ensuring smoother account removal process.

messages/zh.json

@@ -360,7 +360,8 @@
               "fail": "删除账号失败"
             },
             "save": "保存",
-            "saving": "保存中..."
+            "saving": "保存中...",
+            "cancel": "取消"
           },
           "billing": {
             "title": "账单"

src/components/settings/account/delete-account-card.tsx

@@ -113,7 +113,7 @@ export function DeleteAccountCard() {
               {t('deleteAccount.confirmDescription')}
             </AlertDialogDescription>
           </AlertDialogHeader>
-          <AlertDialogFooter>
+          <AlertDialogFooter className="flex justify-end gap-3">
             <Button
               variant="outline"
               onClick={() => setShowConfirmation(false)}

src/lib/auth.ts

@@ -37,7 +37,9 @@ export const auth = betterAuth({
     expiresIn: 60 * 60 * 24 * 7,
     updateAge: 60 * 60 * 24,
     // https://www.better-auth.com/docs/concepts/session-management#session-freshness
-    freshAge: 60 * 60 * 24,
+    // https://www.better-auth.com/docs/concepts/users-accounts#authentication-requirements
+    // disable freshness check for user deletion
+    freshAge: 0 /* 60 * 60 * 24 */,
   },
   emailAndPassword: {
     enabled: true,