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/requirements/functional/INDEX.md

@@ -0,0 +1,15 @@
+# Functional Requirements
+
+This index routes to functional requirement topics; atomic REQ records live only in linked topic files.
+
+## When To Read
+
+- Work with product capabilities, workflows, integrations, or other functional behavior.
+
+## Key Files
+
+- [Host lifecycle operations](./host-lifecycle-operations.md) - REQ-001..REQ-006 (provisioning, docker, monitoring, updates, hawser, ssh keys)
+
+## Placeholders Or Stale Areas
+
+- None.