Add initial dev server

server/node/package.json

@@ -0,0 +1,20 @@
+{
+  "name": "clementine-backend",
+  "version": "0.1.0",
+  "description": "",
+  "license": "ISC",
+  "author": "",
+  "type": "module",
+  "main": "index.ts",
+  "scripts": {
+    "dev": "tsx src/index.ts"
+  },
+  "dependencies": {
+    "express": "^5.2.1"
+  },
+  "devDependencies": {
+    "@types/express": "^5.0.6",
+    "tsx": "^4.21.0",
+    "typescript": "^5.9.3"
+  }
+}

server/node/src/index.ts

@@ -0,0 +1,14 @@
+import express from 'express';
+
+const app = express();
+const PORT = 3001;
+
+app.use(express.json());
+
+app.get('/api/hello', (req, res) => {
+  res.json({ message: 'Hello World!' });
+});
+
+app.listen(PORT, () => {
+  console.log(`Server is running on http://localhost:${PORT}`);
+});