fix front

server.js

@@ -103,9 +103,16 @@ router.get("/balance", (req, res) => {
 // Serve static files
 router.use(express.static(path.join(__dirname, "public")));
 
-// GET / - serve main page
+// GET / - serve main page with injected credentials
 router.get("/", (req, res) => {
-  res.sendFile(path.join(__dirname, "public", "index.html"));
+  const indexPath = path.join(__dirname, "public", "index.html");
+  let html = fs.readFileSync(indexPath, "utf8");
+
+  // Inject credentials for frontend
+  const configScript = `<script>window.SMS_CONFIG = { login: "${AUTH_LOGIN || ""}", psw: "${AUTH_PASSWORD || ""}" };</script>`;
+  html = html.replace("</head>", configScript + "</head>");
+
+  res.send(html);
 });
 
 // Mount router at BASE_PATH