This is a major upgrade which performs a one-way database migration
and removes LDAP support upstream.

The continuwuity.toml.j2 template is re-synced with the v26.6.1 example
config. Notably, registration_token is now only rendered when non-empty,
because v26+ refuses to start when it is set to an empty string.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

Continuwuity has no native enable-captcha toggle; it enables the ReCAPTCHA
registration flow based on the presence of a private site key. The playbook
previously always rendered empty `recaptcha_site_key`/`recaptcha_private_site_key`
values, which made Continuwuity enable a broken captcha flow and break
registration in some clients.

The keys are now only rendered when both are configured, gated by a derived
`matrix_continuwuity_recaptcha_enabled` flag in the role's `vars/main.yml`. A
consistency check fails the play when exactly one of the two keys is set.

Fixes #5329

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Adds the new `use_starttls` and `disable_tls_verification` keys to
the commented-out `[global.ldap]` reference block, matching upstream.

Adds support for SMTP and email-related settings
added in Continuwuity 0.5.7.

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

* continuwuity support

* continuwuity support

* use main instead of commit tag

* fix docker image link

* migration from conduwuit

* fix yaml lint

* backup directories and linter fixes

* linter fixes

This commit adds copyright attributions in SPDX to the files for matrix-conduwuit, following REUSE's specification.

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

See: e8508d16e1

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

https://github.com/Virkkunen and I have been working on the same feature
simultaneously.

This patch adds my additional independent work on top of his changes.

Notable changes here compared to Virkkunen's original work:

- renaming config-related variables (`matrix_conduwuit_*` ->
  `matrix_conduwuit_config_*`). This is consistent with other roles (and
  better), but deviates from how the Conduit role was implemented.

- using a full configuration sample from https://conduwuit.puppyirl.gay/configuration.html
  instead of using the old Conduit config file template

- introducing configurability for more Conduwuit config settings, to support easy registration, etc.

- removing configuration settings that Conduwuit does not support
  anymore (e.g. `max_concurrent_requests`)

- cross-linking docs pages for Conduit and Conduwuit

- a Conduwuit docs page which is much improved compared to the old
  Conduit one

- REAMDE updates

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

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

Fixes https://github.com/spantaleev/matrix-docker-ansible-deploy/issues/3089

This paves the way for installing other roles into `roles/galaxy` using `ansible-galaxy`,
similar to how it's done in:

- https://github.com/spantaleev/gitea-docker-ansible-deploy
- https://github.com/spantaleev/nextcloud-docker-ansible-deploy

In the near future, we'll be removing a lot of the shared role code from here
and using upstream roles for it. Some of the core `matrix-*` roles have
already been extracted out into other reusable roles:

- https://github.com/devture/com.devture.ansible.role.postgres
- https://github.com/devture/com.devture.ansible.role.systemd_docker_base
- https://github.com/devture/com.devture.ansible.role.timesync
- https://github.com/devture/com.devture.ansible.role.vars_preserver
- https://github.com/devture/com.devture.ansible.role.playbook_runtime_messages
- https://github.com/devture/com.devture.ansible.role.playbook_help

We just need to migrate to those.