fix: Use docker run for oCIS init instead of docker_container module

The docker_container module with detach:false hangs indefinitely.
Use shell docker run --rm which handles exit codes properly.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

ansible/roles/owncloud/tasks/main.yml

@@ -40,24 +40,14 @@
   register: ocis_config
 
 - name: Initialize ownCloud Infinite Scale
-  community.docker.docker_container:
-    name: ocis-init
-    image: "owncloud/ocis:{{ owncloud_version }}"
-    command: init
-    env:
-      OCIS_CONFIG_DIR: /etc/ocis
-      IDM_ADMIN_PASSWORD: "{{ owncloud_admin_password }}"
-    volumes:
-      - "{{ owncloud_data_dir }}/config:/etc/ocis"
-    state: started
-    detach: false
-  register: ocis_init
-  when: not ocis_config.stat.exists
-
-- name: Remove init container
-  community.docker.docker_container:
-    name: ocis-init
-    state: absent
+  ansible.builtin.command:
+    cmd: >
+      docker run --rm
+      -e OCIS_CONFIG_DIR=/etc/ocis
+      -e IDM_ADMIN_PASSWORD={{ owncloud_admin_password }}
+      -v {{ owncloud_data_dir }}/config:/etc/ocis
+      owncloud/ocis:{{ owncloud_version }}
+      init
   when: not ocis_config.stat.exists
 
 - name: Start ownCloud via Docker Compose