fix balance end

server.js

@@ -86,7 +86,17 @@ router.post("/clear-all-sms", (req, res) => {
 });
 
 // GET /balance - get account balance (SMSC API compatible)
-router.get("/balance", (req, res) => {
+router.get("/balance.php", (req, res) => {
+  const { login, psw } = req.query;
+
+  if (!login || !psw) {
+    return res.json({ error: "Отсутствуют обязательные параметры", error_code: 1 });
+  }
+
+  if (login !== AUTH_LOGIN || psw !== AUTH_PASSWORD) {
+    return res.json({ error: "Ошибка авторизации", error_code: 2 });
+  }
+
   res.json({ balance: "1000.00" });
 });