Joomla: Add LDAP autocreate plugin support

- Introduced autocreate_users feature flag in config/main.yml
- Added ldapautocreate.php and ldapautocreate.xml plugin files
- Implemented tasks/01_ldap_files.yml for plugin deployment
- Added tasks/05_ldap.yml to configure LDAP plugin and register ldapautocreate
- Renamed tasks for better structure (01→02, 02→03, etc.)
- Updated cli-ldap.php.j2 for clean parameter handling
- Mounted ldapautocreate plugin via docker-compose.yml.j2
- Extended vars/main.yml with LDAP autocreate configuration

Ref: https://chatgpt.com/share/68b0802f-bfd4-800f-b10a-57cf0c091f7e

roles/web-app-joomla/tasks/05_ldap.yml

@@ -0,0 +1,56 @@
+- name: "Configure LDAP plugin params via helper"
+  command: >
+    docker exec {{ JOOMLA_CONTAINER }}
+    sh -c 'test -f /var/www/html/cli/cli-ldap.php && php /var/www/html/cli/cli-ldap.php'
+  register: ldap_conf
+  changed_when: "'configured' in ldap_conf.stdout | lower"
+  async: "{{ ASYNC_TIME if ASYNC_ENABLED | bool else omit }}"
+  poll: "{{ ASYNC_POLL if ASYNC_ENABLED | bool else omit }}"
+  when: JOOMLA_LDAP_ENABLED | bool
+
+- name: "Register & enable ldapautocreate Joomla system plugin"
+  command: >
+    docker exec {{ JOOMLA_CONTAINER }}
+    sh -lc '
+      test -f /var/www/html/plugins/system/ldapautocreate/ldapautocreate.php ||
+        { echo "ERROR: plugin file missing"; exit 1; };
+      php -r "
+      define(\"_JEXEC\",1);
+      \$root=\"/var/www/html\";
+      require \$root.\"/includes/defines.php\";
+      require \$root.\"/includes/framework.php\";
+      \$dbo = Joomla\\CMS\\Factory::getDbo();
+      \$ext = \$dbo->setQuery(
+        \"SELECT * FROM #__extensions WHERE type=\\\"plugin\\\" AND folder=\\\"system\\\" AND element=\\\"ldapautocreate\\\"\"
+      )->loadObject();
+      if (!\$ext) {
+        \$row = (object)[
+          \"name\" => \"plg_system_ldapautocreate\",
+          \"type\" => \"plugin\",
+          \"element\" => \"ldapautocreate\",
+          \"folder\" => \"system\",
+          \"enabled\" => 1,
+          \"access\" => 1,
+          \"protected\" => 0,
+          \"manifest_cache\" => \"{}\",
+          \"params\" => \"{}\",
+          \"custom_data\" => \"{}\",
+          \"state\" => 0,
+          \"ordering\" => 0,
+          \"client_id\" => 0
+        ];
+        \$dbo->insertObject(\"#__extensions\", \$row);
+        echo \"Plugin registered + enabled\\n\";
+      } else {
+        \$ext->enabled = 1;
+        \$dbo->updateObject(\"#__extensions\", \$ext, \"extension_id\");
+        echo \"Plugin already exists, just enabled\\n\";
+      }
+      "
+    '
+  register: ldapautocreate_reg
+  changed_when: >
+    ('registered + enabled' in (ldapautocreate_reg.stdout | lower)) or
+    ('just enabled' in (ldapautocreate_reg.stdout | lower))
+  failed_when: ldapautocreate_reg.rc != 0
+  when: JOOMLA_LDAP_AUTO_CREATE_ENABLED | bool