fix: 后台定时清理refresh_token+清理payment.rs死代码

src/main.rs

@@ -270,6 +270,9 @@ async fn main() -> std::io::Result<()> {
 
             // 会员到期前 7 天提醒
             let _ = db::check_member_expiry_soon(&pool_clone).await;
+
+            // 清理过期的 refresh_token
+            let _ = db::cleanup_expired_refresh_tokens(&pool_clone).await;
         }
     });