Beta 1.0 requirements

• Everything needed for the first alpha #3
• Document installation on docs neos
• Re-add missing CI test runs which are run in mysql in the dev collection
• Fix and run Parallel tests in CI -> otherwise publishing under load is untested!
• Remove branches from previous sub-splits? E.g. 9.0 9.1
• Remove tags from previous sub-splits and update in packagist
• Determine min PostgreSQL version supported and add to CI
• Reintroduce storing DSPs as binary in the graph? https://github.com/neos/neos-development-collection/pull/5790#discussion_r3304309942

Copied from https://github.com/neos/neos-development-collection/pull/5751#issuecomment-3984678798

• Continue working on real world integration
• Check with demo site
• check performance
• check content migration postgres->postgres (8->9)

Later?

• Test with Neos-dev version nightly?
• Polish the code, Solve Todo's
• Improve projection integrity violation, like in m*sql add postgreSQL specific tests

No files or specific tests are named. Start by reviewing the checklist, issue #3, and the linked pull request, then inspect the CI, integration, demo, migration, and publishing checks mentioned there; done means the beta requirements are resolved and verified.