The ClickHouse log UI (logviewer) is being exposed at
https://logviewer.unkin.net behind oauth2-proxy in the logging namespace;
this adds the Authentik side as the prerequisite.
- Adds config/providers_oauth2/logviewer.yaml mirroring traefik: confidential
client, client_id logviewer, secret from Vault kv
kubernetes/namespace/logging/default/oauth-credentials,
openid/email/profile scopes (ak_groups is attached to every oauth2
provider by the module), strict redirect URI for the
logviewer oauth2 callback.
- Adds config/permissions/akP-logviewer-admin.yaml bound to the logviewer
application and nests it under akR-global-admin.
