The Dockerfile is now multi-stage: a Node stage runs `npm run build`, and the
PHP/Apache stage copies the result into public/. Apache + public/.htaccess route
/api* to the Slim front controller, serve real files, and fall back to
index.html for client-side routes.
docker-compose.yml loses the `web` service, its volume, and the source
bind-mount -- the image is the artifact now (rebuild to pick up changes).
Frontend dev moves to `npm run dev` on the host; APP_URL defaults to :8080 since
the one container serves both halves.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
aneurinandClaude Sonnet 5
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