The Quarkus project moves to apps/backend and the Express sources go.
The image is built from the repo root as before, with Temurin 25, and
runs as a non-root user on port 6000. Compose passes the database as a
JDBC URL with the same MANCALA_DB_PASSWORD.
- Apps and @mancala/core depend on the packages in this repo through
link: dependencies instead of the npm releases, so changes no longer
need a publish
- Root package.json gets a build:packages script that installs and
builds both packages
- Backend and frontend Docker images are built from the repo root so
they can include the packages; compose builds them that way
- Metro watches the packages folder and resolves their imports from the
app's node_modules
