The deploy.sh script is now re-added to the entrypoint.sh script
to ensure it runs only during first container startup.
A flag file (/flags/.deployed) is now created after a successful deployment.
The deploy.sh script checks for this flag and will not re-run
deployment steps unless FORCE_DEPLOY is set to true. This prevents
unnecessary re-runs of migrations, collectstatic, etc., on subsequent
container starts within the same deployment.
Corrected permissions for `/app/.cursor-server` and created a `/flags`
directory with appropriate permissions in the `Dockerfile`. Added
ENV DJANGO_SETTINGS_MODULE with default value to `Dockerfile`.
