Refactor async execution handling across LDAP and Nextcloud roles

- Introduce global async configuration in group_vars/all/00_general.yml:
  - ASYNC_ENABLED (disabled in debug mode)
  - ASYNC_TIME (default 300s, omitted if async disabled)
  - ASYNC_POLL (0 for async fire-and-forget, 10 for sync mode)
- Replace hardcoded async/poll values with global vars in:
  - svc-db-openldap (03_users.yml, 04_update.yml)
  - web-app-mig (02_build_data.yml)
  - web-app-nextcloud (03_admin.yml, 04_system_config.yml, 05_plugin.yml,
    06_plugin_routines.yml, 07_plugin_enable_and_configure.yml)
- Guard changed_when and failed_when conditions to only evaluate in synchronous
  mode to avoid accessing undefined rc/stdout/stderr in async runs

  https://chatgpt.com/share/689cd8cc-7fbc-800f-bd06-a667561573bf

roles/web-app-nextcloud/tasks/03_admin.yml

@@ -3,9 +3,12 @@
     docker exec -u {{ nextcloud_docker_user }} {{ nextcloud_container }}
     php occ group:adduser admin {{ nextcloud_administrator_username }}
   register: add_admin_to_group
-  changed_when: "'Added user' in (add_admin_to_group.stdout | default(''))"
+  changed_when: "not ASYNC_ENABLED and 'Added user' in (add_admin_to_group.stdout | default(''))"
   failed_when: >
+    not ASYNC_ENABLED and
     (add_admin_to_group.rc != 0) and
     ("is already a member of" not in (
       (add_admin_to_group.stderr | default('')) ~ (add_admin_to_group.stdout | default(''))
-    ))
+    ))
+  async: "{{ ASYNC_TIME if ASYNC_ENABLED else omit }}"
+  poll:  "{{ ASYNC_POLL if ASYNC_ENABLED else omit }}"

roles/web-app-nextcloud/tasks/04_system_config.yml

@@ -14,6 +14,9 @@
     executable: /bin/bash
   register: syscfg_shell
   changed_when: >
+    not ASYNC_ENABLED and
     ( ((syscfg_shell.stdout | default('')) ~ (syscfg_shell.stderr | default(''))) 
       is search(' set to ') )
-  failed_when: syscfg_shell.rc != 0
+  failed_when: not ASYNC_ENABLED and syscfg_shell.rc != 0
+  async: "{{ ASYNC_TIME if ASYNC_ENABLED else omit }}"
+  poll:  "{{ ASYNC_POLL if ASYNC_ENABLED else omit }}"

roles/web-app-nextcloud/tasks/05_plugin.yml

@@ -5,10 +5,10 @@
 - name: disable {{ plugin_key }} nextcloud plugin
   command: "{{ nextcloud_docker_exec_occ }} app:disable {{ plugin_key }}"
   register: disable_result
-  failed_when: >
-    (disable_result.rc | int != 0)
-    and ('No such app enabled' not in (disable_result.stdout | default('') ~ disable_result.stderr | default('')))
   changed_when: >
+    not ASYNC_ENABLED and
     ((disable_result.stdout | default('') ~ disable_result.stderr | default('')) is search('disabled'))
     and (((disable_result.stdout | default('') ~ disable_result.stderr | default('')) is not search('already disabled')))
   when: not (plugin_value.enabled | bool)
+  async: "{{ ASYNC_TIME if ASYNC_ENABLED else omit }}"
+  poll:  "{{ ASYNC_POLL if ASYNC_ENABLED else omit }}"

roles/web-app-nextcloud/tasks/06_plugin_routines.yml

@@ -18,6 +18,8 @@
         is not search('already disabled'))
     )
   failed_when: false
+  async: "{{ ASYNC_TIME if ASYNC_ENABLED else omit }}"
+  poll:  "{{ ASYNC_POLL if ASYNC_ENABLED else omit }}"
 
 - name: install {{ plugin_key }} nextcloud plugin
   command: "{{ nextcloud_docker_exec_occ }} app:install {{ plugin_key }}"

roles/web-app-nextcloud/tasks/07_plugin_enable_and_configure.yml

@@ -29,8 +29,11 @@
   when: plugin_vars_file.stat.exists
   register: config_set_shell
   changed_when: >
+    not ASYNC_ENABLED and
     (config_set_shell.stdout | default('')) is search(' set to ')
-  failed_when: config_set_shell.rc != 0
+  failed_when: not ASYNC_ENABLED and config_set_shell.rc != 0
+  async: "{{ ASYNC_TIME if ASYNC_ENABLED else omit }}"
+  poll:  "{{ ASYNC_POLL if ASYNC_ENABLED else omit }}"
 
 - name: Check if {{nextcloud_control_node_plugin_tasks_directory}}{{ plugin_key }}.yml exists
   stat: