Dual-write ENC data into encapi alongside Cobbler

Seed encapi (statuses, roles, prodnxsr node assignments) and make the
instance module also create an encapi_node for every VM, so the k8s
puppetserver ENC can cut over from Cobbler. Cobbler/puppetca/puppetdb
resources are left untouched.

- Add config/encapi leaf + modules/encapi driving statuses/roles/nodes
  from YAML (3 statuses, 51 roles, 13 prodnxsr physical nodes).
- Add encapi_node to modules/instance (certname, role, environment).
- Wire encapi provider into root.hcl required_providers and the module
  providers; plumb ENCAPI_WRITE_TOKEN via Makefile vault_env.

config/encapi/roles.yaml

@@ -0,0 +1,55 @@
+# encapi roles: every distinct Puppet role class used across
+# config/instances/*/config.yaml (cobbler_mgmt_classes[0]) PLUS the roles
+# run by the 13 prodnxsr physical nodes (from PuppetDB enc_role fact).
+# Values are empty maps; add description/default_params here when needed.
+roles::apps::jupyter::hub: {}
+roles::apps::media::jellyfin: {}
+roles::apps::media::lidarr: {}
+roles::apps::media::nzbget: {}
+roles::apps::media::prowlarr: {}
+roles::apps::media::radarr: {}
+roles::apps::media::readarr: {}
+roles::apps::media::sonarr: {}
+roles::apps::music::gonic: {}
+roles::base: {}
+roles::infra::auth::glauth: {}
+roles::infra::ceph::rgw: {}
+roles::infra::cobbler::server: {}
+roles::infra::dhcp::server: {}
+roles::infra::dns::externaldns: {}
+roles::infra::dns::master: {}
+roles::infra::dns::resolver: {}
+roles::infra::git::redis: {}
+roles::infra::git::runner: {}
+roles::infra::git::server: {}
+roles::infra::halb::haproxy2: {}
+roles::infra::incus::imagehost: {}
+roles::infra::incus::node: {}
+roles::infra::k8s::compute: {}
+roles::infra::k8s::control: {}
+roles::infra::logs::vlagent: {}
+roles::infra::logs::vlinsert: {}
+roles::infra::logs::vlselect: {}
+roles::infra::logs::vlstorage: {}
+roles::infra::mail::backend: {}
+roles::infra::mail::gateway: {}
+roles::infra::metrics::grafana: {}
+roles::infra::metrics::prometheus: {}
+roles::infra::metrics::vmagent: {}
+roles::infra::metrics::vminsert: {}
+roles::infra::metrics::vmselect: {}
+roles::infra::metrics::vmstorage: {}
+roles::infra::nomad::agentv2: {}
+roles::infra::nomad::server: {}
+roles::infra::pki::certbot: {}
+roles::infra::proxy::jumphost: {}
+roles::infra::puppetboard::server: {}
+roles::infra::puppetdb::api: {}
+roles::infra::puppetdb::sql: {}
+roles::infra::puppet::master: {}
+roles::infra::reposync::repo: {}
+roles::infra::reposync::syncer: {}
+roles::infra::sql::shared: {}
+roles::infra::storage::consul: {}
+roles::infra::storage::edgecache: {}
+roles::infra::storage::vault: {}