Adds the bind-operator and the three BindClusters that replace the
Puppet-managed BIND estate (authoritative / resolver / external-dns).
- add apps/base/bind-system: 9 CRDs, operator Deployment, RBAC (ns bind-system)
- add apps/base/binddns-auth: authoritative BindCluster + catalog zone + TSIG key
- add apps/base/binddns-resolver: recursive-resolver BindCluster with forwarders
- add apps/base/binddns-externaldns: dynamic (RFC2136) BindCluster + TSIG key
- add au-syd1 overlays for all four apps
- register the four apps in the platform ApplicationSet
- add binddns-* namespaces to the platform AppProject destinations
- add schemas/bind.unkin.net/*.json so kubeconform validates the new CRs
DNS Services are LoadBalancer via PureLB. TSIG key material is generated by
the operator into Secrets at runtime (no plain Secrets in git).
## Summary
- New `ci/generate-schemas.sh` script that generates JSON schemas from three sources:
1. Live cluster CRDs via `kubectl get crds`
2. Offline CRD manifests (ArgoCD v3.3.2, Gateway API v1.5.1)
3. Kubernetes v1.33.7 swagger spec for native types
- Schemas follow Datree catalog convention (`<group>/<Kind>_<version>.json`)
- `validate-apps.sh` and `validate-clusters.sh` check local schemas first, falling back to remote
- Fixes TLSRoute (and other CRD) schema validation failures in kubeconform
## Sources
- ArgoCD: `artifactapi.../argoproj/argo-cd/refs/tags/v3.3.2/manifests/ha/install.yaml`
- Gateway API: `artifactapi.../kubernetes-sigs/gateway-api/releases/download/v1.5.1/standard-install.yaml`
- Kubernetes: `artifactapi.../kubernetes/kubernetes/refs/tags/v1.33.7/api/openapi-spec/swagger.json`
Reviewed-on: #212
Co-authored-by: Ben Vincent <ben@unkin.net>
Co-committed-by: Ben Vincent <ben@unkin.net>
unkinben