zoo-devnet: trunk could not be applied without breaking the validator

Two ways origin/main disagreed with the live cluster, both of which only bite
on the next clean `apply -k`:

  NETWORK_HEALTH_MIN_CONN_PEERS was absent. A single-validator devnet has no
  peers, so luxd's default health gate (min 1 connected peer) holds the pod at
  0/1 forever. The LIVE StatefulSet already runs
  --network-health-min-conn-peers=0; trunk just had no way to reproduce it. The
  key went missing when HTTP_ALLOWED_HOSTS was added to this same `config:`
  block — the edit landed beside it and took its sibling with it.

  tag was pinned to 0.2.0 while the live node runs ghcr.io/zooai/node:0.2.2
  (the plugin-dir fix). Applying trunk downgraded the validator.

Neither showed up as an outage because nothing re-applies this overlay on a
schedule — no flux, no argo, no cronjob on zoo-k8s. It would have detonated
under whoever ran the next apply, which is the worst time to find it.

`kubectl kustomize k8s/zoo-devnet` now renders NETWORK_HEALTH_MIN_CONN_PEERS
"0" and tag 0.2.2, matching production.

Co-authored-by: Hanzo Dev <[email protected]>

k8s/zoo-devnet/network-patch.yaml

@@ -17,7 +17,7 @@ spec:
   # statefulset-patch.yaml (./luxd -> zood).
   image:
     repository: ghcr.io/zooai/node
-    tag: 0.2.0
+    tag: 0.2.2
     pullPolicy: IfNotPresent
   resources:
     cpuRequest: "200m"
@@ -37,6 +37,13 @@ spec:
     # explorer could reach the Service and still index nothing. The Service is
     # ClusterIP and devnet is not publicly routed.
     HTTP_ALLOWED_HOSTS: "*"
+    # Single-validator devnet has no peers, so the default network-health gate
+    # (min 1 connected peer) would hold the pod at 0/1 forever. 0 = healthy alone.
+    # The LIVE StatefulSet already runs --network-health-min-conn-peers=0; this
+    # key is what makes an apply of this overlay reproduce that rather than hang
+    # the validator. It went missing when HTTP_ALLOWED_HOSTS was added to this
+    # same block, so trunk drifted out of agreement with production.
+    NETWORK_HEALTH_MIN_CONN_PEERS: "0"
 ---
 apiVersion: zoo.network/v1alpha1
 kind: ZooChain