Remove non-functional Joomla LDAP integration

- Disabled LDAP feature flag (set to false by default, with comment)
- Removed ldapautocreate plugin (PHP + XML)
- Deleted LDAP helper tasks (01_ldap_files.yml, 05_ldap.yml, 07_diagnose.yml)
- Deleted LDAP CLI helper scripts (cli.php, diagnose.php, plugins.php, auth-trace.php)
- Removed LDAP configuration variables from vars/main.yml
- Removed LDAP environment variables from env.j2
- Removed LDAP-specific mounts from docker-compose.yml.j2
- Dropped php-ldap installation from Dockerfile
- Renamed task files for consistent numbering (02->01_install, 03->02_debug, 04->03_patch, 06->04_assert)

Reason: LDAP integration was removed because it was not functional.

Conversation: https://chatgpt.com/share/68b09373-7aa8-800f-8f2c-11e27123bad1

roles/web-app-joomla/templates/docker-compose.yml.j2

@@ -9,17 +9,6 @@
 {% include 'roles/docker-container/templates/base.yml.j2' %}
     volumes:
       - data:/var/www/html
-{% if JOOMLA_LDAP_ENABLED %}
-      - {{ JOOMLA_LDAP_CONF_FILE }}:/var/www/html/cli/cli-ldap.php:ro
-{% if JOOMLA_LDAP_AUTO_CREATE_ENABLED | bool %}
-      - {{ JOOMLA_LDAP_AUT_CRT_HOST_DIR }}:{{ JOOMLA_LDAP_AUT_CRT_DOCK_DIR }}:ro
-{% endif %}
-{% if MODE_DEBUG  | bool %}
-      - {{ JOOMLA_LDAP_DIAG_HOST_FILE }}:{{ JOOMLA_LDAP_DIAG_DOCK_FILE }}:ro
-      - {{ docker_compose.directories.volumes }}/cli-plugins.php:/var/www/html/cli/cli-plugins.php:ro
-      - {{ docker_compose.directories.volumes }}/cli-ldap-auth-trace.php:/var/www/html/cli/ldap-auth-trace.php:ro
-{% endif %}
-{% endif %}
     ports:
       - "127.0.0.1:{{ ports.localhost.http[application_id] }}:{{ container_port }}"
 {% include 'roles/docker-container/templates/healthcheck/curl.yml.j2' %}