[ci skip] Add tier labels to all namespace resources for Kyverno resource governance

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.

modules/kubernetes/freshrss/main.tf

@@ -10,6 +10,9 @@ module "tls_secret" {
 resource "kubernetes_namespace" "immich" {
   metadata {
     name = "freshrss"
+    labels = {
+      tier = var.tier
+    }
   }
 }