Added `tier = var.tier` to kubernetes_namespace labels in ~73 service
modules. This enables Kyverno to generate LimitRange defaults,
ResourceQuotas, and PriorityClass injection for all namespaces.
Previously only 11 namespaces had tier labels; now all 80 active
namespaces are labeled. All pods restarted in rolling waves to pick
up the new policies.
- Remove nginx-specific ingress variables (use_proxy_protocol, proxy_timeout, additional_configuration_snippet)
- Update ingress annotations to use Traefik middleware CRDs
- Delete nginx-ingress module (replaced by traefik)
- Add new traefik middleware.tf for shared middleware definitions
- Update service modules to work with new ingress_factory interface
