Replaces `community.docker.docker_image` with the modern
`docker_image_pull` and `docker_image_build` split modules. Drops the
`ansible_version` compatibility ladder and the now-redundant
`_container_image_force_pull` variable (the new pull module handles
registry refresh natively via `pull: always`). Also registers
`_container_image_build_result` so that a self-build rebuild correctly
triggers a service restart.

Related to https://github.com/spantaleev/matrix-docker-ansible-deploy/issues/5191.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

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

For each of the 34 roles (3 clients, 9 bots, 22 bridges), this commit:
- Adds `_restart_necessary: false` default variable
- Adds `register:` directives to config/image/systemd tasks
- Computes `_restart_necessary` via set_fact (OR of all .changed results)
- Wires `(_restart_necessary | bool)` in group_vars/matrix_servers

This allows the systemd service manager to skip unnecessary restarts
when running install-* tags and nothing actually changed.

Service roles and complex multi-service roles will follow separately.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Ref: https://openai.com/index/introducing-gpt-5/

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

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

Ref: 91986a129c/CHANGELOG.md (2025-05-11-version-172)

Ref:

- d2660be33c/CHANGELOG.md (2025-05-10-version-170)
- https://openai.com/index/image-generation-api/

Ref: d2660be33c/CHANGELOG.md (2025-05-10-version-170)

Ref: https://openai.com/index/gpt-4-1/

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

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

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

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

The new baibot version (v1.5.0) supports the new Claude Sonnet 3.7
model, which is supposedly improved and priced the same way, so it makes
sense to upgrade to it in our static definitions.

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