We create the `matrix` user as a system user (smaller uid), so it makes
sense to do the same for the `matrix` group.

This defaults to `true`, as before.

* migration ownership fix

* lint fix

* lint fixes

This should allow roles for other forks (like Tuwunel) to use similar tags.

Related to https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/4267

Related to https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/4267

Related to https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/4267

* 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

Ref:

- 33f3ccd6ae/CHANGELOG.md (L134-L136)
- 7165d3fa58/appservice/registration.go (L30)

Intentionally not removing the old configuration setting yet, as some bridges may/do not support
the new setting name. It's likely just bridgev2 mautrix bridges that have been updated and support both right now.

Since mautrix-whatsapp v0.12.0, the bridge deals with more than just phone numbers now,
so it sometimes tries to manage users with Matrix IDs like: `@whatsapp_lid-123456789:example.com`

Ref:

- https://github.com/mautrix/whatsapp/releases/tag/v0.12.0
- https://mau.fi/blog/2025-04-mautrix-release/

Signed-off-by: HarHarLinks <2803622+HarHarLinks@users.noreply.github.com>

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

* Add matrix_bridges_msc4190_enabled flag for using msc4190 on supported mautrix bridges.

* Apply to_json to msc4190 in mautrix configs

* Add | to_json to mautrix bridge registration io.element.msc4190.

* require matrix_synapse_experimental_features_msc3202_device_masquerading_enabled for matrix_bridges_msc4190_enabled

* Also add msc4190 support for mautrix-telegram

Fix single typo Rraefik --> Traefik