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

docker/Dockerfile

@@ -14,6 +14,9 @@ RUN apt update && apt install -y --no-install-recommends \
     tzdata \
     openssh-client \
     iputils-ping \
+    vim \
+    less \
+    && apt clean \
     && rm -rf /var/lib/apt/lists/*
 
 RUN mkdir -p /etc/ssh/ssh_config.d \

docker/requirements.yml

@@ -4,4 +4,6 @@ collections:
   - name: community.general
     version: 13.0.1
   - name: community.docker
-    version: 5.2.0
+    version: 5.2.0
+  - name: community.zabbix
+    version: 4.2.0