Go Live Checklist + Version Endpoint

- Go Live Checklist for LandveX Internal Pilot deployment
- Version endpoint: /version returns environment, version, commit, build
- Ready for Internal Pilot deployment

Next: Deploy with Docker Compose

packages/api/src/routes/version.ts

@@ -0,0 +1,23 @@
+/**
+ * Version endpoint
+ *
+ * Returns current version, commit SHA, and build info.
+ * Used by Readiness Dashboard and debugging.
+ */
+
+import { Router } from 'express';
+
+const router = Router();
+
+const VERSION = {
+  environment: process.env.NODE_ENV || 'development',
+  version: process.env.npm_package_version || '0.1.0',
+  commit: process.env.GIT_COMMIT || 'unknown',
+  build: new Date().toISOString(),
+};
+
+router.get('/', (_req, res) => {
+  res.json(VERSION);
+});
+
+export default router;