Add continuwuity support (#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

roles/custom/matrix-continuwuity/tasks/validate_config.yml

@@ -0,0 +1,15 @@
+# SPDX-FileCopyrightText: 2025 MDAD project contributors
+#
+# SPDX-License-Identifier: AGPL-3.0-or-later
+
+---
+
+- name: Fail if required continuwuity settings not defined
+  ansible.builtin.fail:
+    msg: >-
+      You need to define a required configuration setting (`{{ item.name }}`).
+  when: "item.when | bool and vars[item.name] == ''"
+  with_items:
+    - {'name': 'matrix_continuwuity_hostname', when: true}
+    - {'name': 'matrix_continuwuity_container_network', when: true}
+    - {'name': 'matrix_continuwuity_container_labels_internal_client_api_traefik_entrypoints', when: "{{ matrix_continuwuity_container_labels_internal_client_api_enabled }}"}