claude went crazy

server/server.js

@@ -0,0 +1,33 @@
+import express from 'express';
+import { fileURLToPath } from 'url';
+import { dirname, join } from 'path';
+import { router } from './routes.js';
+
+const __dirname = dirname(fileURLToPath(import.meta.url));
+const PORT = process.env.PORT ?? 3000;
+
+export const app = express();
+
+app.use(express.json());
+
+// API
+app.use('/api', router);
+
+// Static files
+app.use(express.static(join(__dirname, '..')));
+
+// SPA fallback — all non-API, non-asset routes serve index.html
+app.get('*', (req, res) => {
+  res.sendFile(join(__dirname, '../index.html'));
+});
+
+// Error handler
+app.use((err, _req, res, _next) => {
+  console.error(err);
+  res.status(500).json({ error: 'internal server error' });
+});
+
+// Boot — only when run directly, not when imported by tests
+if (process.argv[1] === fileURLToPath(import.meta.url)) {
+  app.listen(PORT, () => console.log(`catalyst on :${PORT}`));
+}