Full lab documentation and infrastructure as code

- Trino catalogs, Grafana, Spark jobs, LDAP LDIF, NPM compose
- Airflow DAG scripts, Proxmox VM inventory, network docs
- Ansible playbook, Gitea CI validate workflow
- Backup and health-check scripts, cron documentation
- Homepage DOCS tab with links to all documentation
- Extended collect-fleet-config.sh and populate-repo.py

config/ldap/base.ldif

@@ -0,0 +1,14 @@
+dn: dc=dell-atc,dc=lan
+objectClass: top
+objectClass: dcObject
+objectClass: organization
+o: Dell ATC Lab
+dc: dell-atc
+
+dn: ou=Users,dc=dell-atc,dc=lan
+objectClass: organizationalUnit
+ou: Users
+
+dn: ou=Groups,dc=dell-atc,dc=lan
+objectClass: organizationalUnit
+ou: Groups