add more error codes

server.js

@@ -43,16 +43,16 @@ function writeMessages(messages) {
 }
 
 // POST /send-msg - receive and log SMS
-router.post("/send-msg", (req, res) => {
+router.post("/send", (req, res) => {
   const { login, psw, phones, mes } = req.body;
 
   if (!login || !psw || !phones || !mes) {
-    return res.status(400).json({ error: "Missing required parameters" });
+    return res.json({ error: "Отсутствуют обязательные параметры", error_code: 1 });
   }
 
   // Validate credentials
   if (login !== AUTH_LOGIN || psw !== AUTH_PASSWORD) {
-    return res.status(401).json({ error: "Invalid credentials" });
+    return res.json({ error: "Ошибка авторизации", error_code: 2 });
   }
 
   const message = {
@@ -69,7 +69,7 @@ router.post("/send-msg", (req, res) => {
 
   console.log(`[${message.timestamp}] SMS to ${phones}: ${mes}`);
 
-  res.json({ status: "ok", id: message.id });
+  res.json({ id: message.id, cnt: 1 });
 });
 
 // GET /view-all-sms - view all logged messages