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

.project-wiki/templates/change-request.md

@@ -0,0 +1,41 @@
+---
+id: CR-YYYYMMDD-001
+type: change-request
+status: active
+title: Short change title
+created: YYYY-MM-DD
+updated: YYYY-MM-DD
+tags: []
+related: []
+source_paths: []
+confidence: confirmed
+---
+
+# CR-YYYYMMDD-001 - Short Change Title
+
+## Summary
+
+TBD
+
+## Source
+
+- Meeting, document, chat note, or user request: TBD
+
+## What Changed
+
+TBD
+
+## Reason
+
+TBD
+
+## Impact
+
+- Requirements: TBD
+- Technical docs: TBD
+- Implementation: TBD
+- Tests: TBD
+
+## Follow-Up
+
+- TBD