fix: keep only project subdirectory files

server.js

@@ -0,0 +1,6 @@
+import express from 'express';
+const app = express();
+const PORT = Number(process.env.PORT || 8080);
+app.use(express.static('public'));
+app.get('/healthz', (_req, res) => res.json({ ok: true }));
+app.listen(PORT, '0.0.0.0', () => console.log(`tetris-web listening on :${PORT}`));