Initial backend upload

index.js

@@ -0,0 +1,14 @@
+const express = require("express");
+const cors = require("cors");
+
+const app = express();
+app.use(cors());
+
+app.get("/api/hello", (req, res) => {
+  res.json({ message: "مرحبا من السيرفر 🚀" });
+});
+
+// مهم: 0.0.0.0 مش localhost
+app.listen(3000, "0.0.0.0", () => {
+  console.log("Backend running on port 3000");
+});