feat(template): add openBIS scaffolding for data projects
Adds three new blueprint files and a README section so projects generated from this template have a working openBIS integration out of the box:
- openbis/docker-compose.yml — three-service local stack (postgres, openbis-app, haproxy)
- pipeline/scripts/openbis_setup_schema.py — idempotent schema setup with cookiecutter vars
- pipeline/scripts/register_in_openbis.py — FAIR provenance registration with staging workaround
README gains a "Registering results in openBIS" section explaining the properties-vs-attached-files design rule and the four reproduction questions.