rename dmc12 inventory to cloudlorean and vault admin_password

- replace inventory/dmc12.yml with cloudlorean.yml (+ group_vars) and update
  all README/AGENTS call examples and the inventory table
- move admin_password hash into encrypted vault.yml; remove plaintext copies
  from roles/bootstrap/defaults and group_vars/external.yml
- bootstrap.yml loads vault.yml via vars_files (same pattern as monitoring)
- monitoring: PSK config/registration updates, docker role defaults,
  os-updates logging/reboot refinements, ansible.cfg/execute.sh tweaks
- add .project-wiki knowledge base and .github agent instructions

roles/os-updates/defaults/main.yml

@@ -1,6 +1,7 @@
 # Standardwerte, die überschrieben werden können
 os_update_auto_upgrade: true
 os_also_update_mirror: false
+os_update_reboot_on_proxmox: false
 
 # Logging of OS update runs (preflight package count/list, updated packages, duration)
 os_update_logging_enabled: true
@@ -16,4 +17,4 @@ os_update_debian_codenames:
   # Only these suites are considered Debian codenames and will be rewritten in sources.list.d
   - trixie
   - bookworm
-  - bullseye
+  - bullseye