Entrypoint now runs as root, fixes ownership of /app/data to nextjs:nodejs
(uid 1001), then drops privileges via su before starting the app.
This fixes 'unable to open database file' when the host data/ directory
is created by Docker as root and is not writable by the nextjs user.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
achmad