Ref:
- https://github.com/etkecc/baibot/pull/83
- 748d2b7fd4/CHANGELOG.md (2026-03-07-version-1150)
- 748d2b7fd4/docs/configuration/authentication.md

Fixes https://github.com/spantaleev/matrix-docker-ansible-deploy/issues/4445

Signed-off-by: Suguru Hirahara <acioustick@noreply.codeberg.org>

Signed-off-by: Suguru Hirahara <acioustick@noreply.codeberg.org>

This:

- brings consistency - no more mixing `_name_prefix` and `_registry_prefix`
- adds extensibility - a future patch will allow reconfiguring all registry prefixes for all roles in the playbook

We still have `_docker_` vs `_container_` inconsistencies.
These may be worked on later.

Related to https://github.com/spantaleev/matrix-docker-ansible-deploy/issues/3369