seperate server.js

backend/routes/version.js

@@ -0,0 +1,20 @@
+// backend/routes/version.js
+const express = require('express');
+const pino = require('pino');
+
+// Logger for this module
+const logger = pino({ level: process.env.LOG_LEVEL || 'info' });
+
+const router = express.Router();
+
+// Route handler for / (relative to /api/version)
+router.get('/', (req, res) => {
+    // Read commit SHA from environment variable (set during build/deploy)
+    const commitSha = process.env.GIT_COMMIT_SHA || 'unknown';
+    const requestIp = req.ip || req.socket.remoteAddress;
+
+    logger.info({ requestIp, commitSha }, 'Version request received');
+    res.json({ commitSha });
+});
+
+module.exports = router;