feat: sample backend package w/ express

apps/vdb-backend/src/index.ts

@@ -0,0 +1,15 @@
+import { SAMPLE } from "@repo/common/sample";
+import express from "express";
+
+const PORT = 1224;
+
+const app = express();
+
+app.get("/sample", (_req, res) => {
+	res.status(200).send(SAMPLE);
+});
+
+app.listen(PORT, () => {
+	console.log(`Backend started @ http://localhost:${PORT} !`);
+	console.log(SAMPLE);
+});