Flux self-managed bootstrap files copied from ugok (controller images
already mirrored to cr.yandex), GitRepository/Kustomization pointed at
gitlab.sarex.io directly since the cluster has outbound internet access.
Starts with just flux-system + helm-repositories, infra/apps to be added
incrementally.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
