fix(k8s): Recreate singletons and trim requests for scheduler headroom

RollingUpdate with default maxSurge needs a spare pod the single node does not have (99% CPU requested), so multi-workload restarts end Pending and verify times out. Recreate on all replicas:1 Deployments (immich-server and bentopdf keep RollingUpdate at replicas 2). Also trims CPU/memory requests toward measured use (adguard, authentik, gitea, netbox, uptime-kuma, netbird-server) and gives traefik requests/limits so it is no longer BestEffort.

downtify/k8s/downtify.yaml

@@ -20,6 +20,8 @@ spec:
   selector:
     matchLabels:
       app: downtify
+  strategy:
+    type: Recreate
   template:
     metadata:
       labels: