Restructure into one folder per private repo/host, not a flat Docker/ dump

rocky-docker-lxc/, caddy-vm/, monitoring-vm/ (was missing entirely -
Grafana+Loki+Prometheus stack, refreshed and CA mount stripped same as
everything else), and automation/{ansible,automation-vm,iac}/ for the
three repos that live on the automation VM. Hawser is genuinely
deployed on all three of caddy-vm/monitoring-vm/automation-vm so it's
duplicated in each rather than picking one canonical home.

Old Ansible/ and "Infrastrucutre as Code/" content moved under
automation/ansible/old-playbooks and automation/iac/old-content as-is
for now - contents still need refreshing against the current repos and
a per-folder README, that's the next pass.

automation/iac/old-content/Ansible/roles/cis_hardening/banners/tasks/main.yml

@@ -0,0 +1,26 @@
+---
+# Login banners for /etc/motd, /etc/issue, /etc/issue.net
+
+- name: Ensure /etc/motd contains standard CIS banner
+  ansible.builtin.copy:
+    dest: /etc/motd
+    owner: root
+    group: root
+    mode: "0644"
+    content: "{{ cis_motd_banner }}"
+
+- name: Ensure /etc/issue contains standard CIS banner
+  ansible.builtin.copy:
+    dest: /etc/issue
+    owner: root
+    group: root
+    mode: "0644"
+    content: "{{ cis_motd_banner }}"
+
+- name: Ensure /etc/issue.net contains standard CIS banner
+  ansible.builtin.copy:
+    dest: /etc/issue.net
+    owner: root
+    group: root
+    mode: "0644"
+    content: "{{ cis_banner }}"