Fix kea CrashLoopBackOff: drop DHCP ntp hostnames, bump to v0.1.1 (#338)

kea-0/kea-1 crash-looped after the dhcp-system deploy. Two root causes:

1. **kea-dhcp4** rejected the `ntp-servers` option (DHCP code 42) because that option carries IPv4 addresses only, but the KeaCluster supplied rotating `pool.ntp.org` hostnames (`DHCP4_CONFIG_LOAD_FAIL ... Failed to convert string to address '0.au.pool.ntp.org'`).
2. **kea-ctrl-agent/dhcp4** rejected the `/run/kea` unix socket path — kea 2.6.5 permits only `/var/run/kea` (exact-string check). Fixed in kea-operator v0.1.1 (`RunDir=/var/run/kea`).

- Remove `ntpServers` from the KeaCluster (not representable via DHCP option 42; add concrete NTP server IPs if ever needed).
- Bump kea-operator, kea, and kea-api images v0.1.0 -> v0.1.1 (socket-path fix).

kubeconform + pre-commit green.

https://claude.ai/code/session_01JUoARVdmhxKQHyyyp1pxeT
---------

Co-authored-by: Ben Vincent <neotheo@gmail.com>
Reviewed-on: #338
Co-authored-by: Ben Vincent <ben@unkin.net>
Co-committed-by: Ben Vincent <ben@unkin.net>

apps/base/dhcp-system/cr/keaapi.yaml

@@ -11,7 +11,7 @@ metadata:
     argocd.argoproj.io/sync-wave: "1"
 spec:
   replicas: 1
-  image: git.unkin.net/unkin/kea-api:v0.1.0
+  image: git.unkin.net/unkin/kea-api:v0.1.1
   tokenSecretName: kea-api-token
   service:
     type: ClusterIP

apps/base/dhcp-system/cr/keacluster.yaml

@@ -11,15 +11,13 @@ metadata:
     argocd.argoproj.io/sync-wave: "1"
 spec:
   replicas: 2
-  image: git.unkin.net/unkin/kea:v0.1.0
+  image: git.unkin.net/unkin/kea:v0.1.1
   domainName: main.unkin.net
   defaultLeaseTime: 1200
   maxLeaseTime: 86400
-  ntpServers:
-    - 0.au.pool.ntp.org
-    - 1.au.pool.ntp.org
-    - 2.au.pool.ntp.org
-    - 3.au.pool.ntp.org
+  # No ntpServers: DHCP option 42 (ntp-servers) carries IPv4 addresses only, so
+  # the rotating AU pool.ntp.org hostnames cannot be delivered this way (kea
+  # rejects them at config load). Add concrete NTP server IPs here if needed.
   ha:
     mode: hot-standby
   service:

apps/base/dhcp-system/deployment.yaml

@@ -21,7 +21,7 @@ spec:
         runAsNonRoot: true
       containers:
         - name: operator
-          image: git.unkin.net/unkin/kea-operator:v0.1.0
+          image: git.unkin.net/unkin/kea-operator:v0.1.1
           args:
             - --metrics-bind-address=:8080
             - --health-probe-bind-address=:8081