feat(deploy): 切换宁波单节点生产拓扑

移除已停用的香港 API、Web、Worker 和边缘 Service 渲染结果，将 Worker 与容量控制器固定到宁波单实例，并在发布成功后清理旧香港资源。\n\n容量控制器忽略最大副本为零的站点，集群环境允许不再声明香港主机；单节点 production acceptance 不再依赖香港 Service、Deployment 或 SSH 回退。\n\n验证：Go 全量测试与 go vet；迁移安全检查；Kustomize 单节点渲染；ShellCheck；cluster release、production acceptance 和 manual release 测试。

tests/release/cluster-release-helper-test.sh

@@ -41,7 +41,6 @@ kubectl=("$tmp/kubectl")
 NAMESPACE=easyai
 ACTIVE_RELEASE_SHA=aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
 AI_GATEWAY_WORKER_REPLICAS_NINGBO=1
-AI_GATEWAY_WORKER_REPLICAS_HONGKONG=1
 AI_GATEWAY_ASYNC_WORKER_INSTANCE_HARD_LIMIT=24
 AI_GATEWAY_ASYNC_WORKER_HARD_LIMIT=48
 AI_GATEWAY_ASYNC_WORKER_GLOBAL_HARD_LIMIT=48
@@ -55,9 +54,7 @@ AI_GATEWAY_MEDIA_MATERIALIZATION_CONCURRENCY=24
 AI_GATEWAY_MEDIA_REQUEST_CONCURRENCY=24
 AI_GATEWAY_WORKER_AUTOSCALING_ENABLED=false
 AI_GATEWAY_WORKER_MIN_REPLICAS_NINGBO=1
-AI_GATEWAY_WORKER_MIN_REPLICAS_HONGKONG=1
 AI_GATEWAY_WORKER_MAX_REPLICAS_NINGBO=1
-AI_GATEWAY_WORKER_MAX_REPLICAS_HONGKONG=1
 AI_GATEWAY_WORKER_TARGET_OUTSTANDING_PER_REPLICA=48
 AI_GATEWAY_WORKER_CPU_REQUEST_MILLICORES=500
 AI_GATEWAY_WORKER_MEMORY_REQUEST_MIB=512
@@ -66,7 +63,7 @@ grep -Fq "\"AI_GATEWAY_REVISION=\${ACTIVE_RELEASE_SHA:-}\"" "$helper"
 
 # activate_manifest invokes this function inside an && condition. A failed
 # rollout must still propagate instead of falling through to a stale Ready Pod.
-if rollout_worker_site hongkong 'registry.example.invalid/api@sha256:deadbeef' && true; then
+if rollout_worker_site ningbo 'registry.example.invalid/api@sha256:deadbeef' && true; then
   echo 'failed Worker rollout was reported as successful' >&2
   exit 1
 fi
@@ -80,16 +77,21 @@ deployment_strategy() {
   ' "$application"
 }
 
-for deployment in easyai-worker-ningbo easyai-worker-hongkong; do
-  strategy=$(deployment_strategy "$deployment")
-  grep -Fq '      maxSurge: 0' <<<"$strategy"
-  grep -Fq '      maxUnavailable: 1' <<<"$strategy"
-done
+strategy=$(deployment_strategy easyai-worker-ningbo)
+grep -Fq '      maxSurge: 0' <<<"$strategy"
+grep -Fq '      maxUnavailable: 1' <<<"$strategy"
 
-for deployment in easyai-api-ningbo easyai-api-hongkong; do
-  strategy=$(deployment_strategy "$deployment")
-  grep -Fq '      maxSurge: 1' <<<"$strategy"
-  grep -Fq '      maxUnavailable: 0' <<<"$strategy"
-done
+strategy=$(deployment_strategy easyai-api-ningbo)
+grep -Fq '      maxSurge: 1' <<<"$strategy"
+grep -Fq '      maxUnavailable: 0' <<<"$strategy"
+
+grep -Fq 'name: easyai-api-hongkong' "$root/deploy/kubernetes/production/kustomization.yaml"
+grep -Fq 'name: easyai-worker-hongkong' "$root/deploy/kubernetes/production/kustomization.yaml"
+grep -Fq 'name: easyai-web-hongkong' "$root/deploy/kubernetes/production/kustomization.yaml"
+if grep -Fq 'AI_GATEWAY_WORKER_REPLICAS_HONGKONG=' \
+  "$root/deploy/kubernetes/easyai-ai-gateway-cluster-release.conf.example"; then
+  echo 'Hong Kong Worker capacity remains in the single-node release environment' >&2
+  exit 1
+fi
 
 echo 'cluster_release_helper_tests=PASS'