Stage 2 of REFACTOR_PLAN.md. Repo had no CI or local validation tooling at
all. Tuned rules to match this repo's existing conventions (no trailing
newline on hand-written manifests, aligned comment blocks) rather than
rewriting hundreds of pre-existing files to satisfy defaults.
Baseline is clean: yamllint reports 0 issues repo-wide, kubeconform validates
117 manifests + 20 Argo CD Applications, and all Ansible playbooks pass
--syntax-check.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
