svc-db-openldap: make LDIF import idempotent, unify container var, and tidy role

- Add handlers/main.yml to load memberof/refint modules and import groups via docker exec
- Use OPENLDAP_CONTAINER consistently (replace OPENLDAP_NAME)
- Rename tasks/ldifs_creation.yml -> tasks/_ldifs_creation.yml and update includes
- Drop default param from get_app_conf calls; add explicit meta: flush_handlers
- docker-compose: honor OPENLDAP_NETWORK_EXPOSE_LOCAL | bool; minor formatting
- env template: formatting/comments consistency
- Remove unused 01_rbac_group.ldif.j2; rename 02_rbac_roles -> 01_rbac_roles and fix filter to LDAP
- vars: rename OPENLDAP_NAME -> OPENLDAP_CONTAINER; prune LDIF schema type

Conversation: https://chatgpt.com/share/68d1d25d-e788-800f-bfb6-13b1f5bc6121

roles/svc-db-openldap/templates/ldif/groups/01_rbac_group.ldif.j2

@@ -1,30 +0,0 @@
-{# 
-@todo: activate
-{% for dn, entry in (applications | build_ldap_role_entries(users, ldap)).items() %}
-
-dn: {{ dn }}
-{% for oc in entry.objectClass %}
-objectClass: {{ oc }}
-{% endfor %}
-{% if entry.ou is defined %}
-ou: {{ entry.ou }}
-{% else %}
-cn: {{ entry.cn }}
-{% endif %}
-{% if entry.gidNumber is defined %}
-gidNumber: {{ entry.gidNumber }}
-{% endif %}
-description: {{ entry.description }}
-{% if entry.memberUid is defined %}
-{% for uid in entry.memberUid %}
-memberUid: {{ uid }}
-{% endfor %}
-{% endif %}
-{% if entry.member is defined %}
-{% for m in entry.member %}
-member: {{ m }}
-{% endfor %}
-{% endif %}
-
-{% endfor %}
-#}

roles/svc-db-openldap/templates/ldif/groups/01_rbac_roles.ldif.j2

@@ -1,4 +1,4 @@
-{% for dn, entry in (applications | build_ldap_role_entries(users, ldap)).items() %}
+{% for dn, entry in (applications | build_ldap_role_entries(users, LDAP)).items() %}
 
 dn: {{ dn }}
 {% for oc in entry.objectClass %}