Fixing demo data load

Signed-off-by: Steve Springett <steve@springett.us>

Author: stevespringett

backend/package.json

@@ -9,7 +9,7 @@
   },
   "scripts": {
     "dev": "tsx watch src/index.ts",
-    "build": "tsc",
+    "build": "tsc && node scripts/copy-assets.mjs",
     "start": "node dist/index.js",
     "migrate": "tsx src/db/migrate.ts",
     "db:reset": "rm -rf data/pglite && echo 'Database reset. It will be recreated on next server start.'",