feat(acceptance): 建立同构验收与弹性容量体系

实现本地三节点 K3s 同构环境、脱敏生产快照、Gemini 图片和多参考图视频协议模拟、统一验收报告及故障注入。\n\n新增 Worker 容量控制器、资源与连接预算、任务恢复保护，并将生产验收拆分为 validation 执行和人工 CAS 放量。\n\n验证包括 Go 全量测试、PostgreSQL HTTP 集成测试、go vet、OpenAPI、ShellCheck、前端检查、迁移及发布脚本测试。

scripts/cluster/install-release-helper.sh

@@ -7,13 +7,19 @@ source "$script_dir/common.sh"
 load_cluster_env
 
 cluster_ssh "$CLUSTER_NINGBO_HOST" \
-  'install -d -m 0755 /usr/local/lib/easyai-ai-gateway-release /usr/local/share/easyai-ai-gateway-release'
+  'install -d -m 0755 /usr/local/lib/easyai-ai-gateway-release /usr/local/share/easyai-ai-gateway-release/production'
 cluster_scp "$cluster_root/deploy/kubernetes/easyai-ai-gateway-cluster-release" \
   "$CLUSTER_NINGBO_HOST:/usr/local/sbin/easyai-ai-gateway-cluster-release"
 cluster_scp "$cluster_root/deploy/kubernetes/easyai-ai-gateway-cluster-release.conf.example" \
   "$CLUSTER_NINGBO_HOST:/usr/local/share/easyai-ai-gateway-release/easyai-ai-gateway-cluster-release.conf.example"
 cluster_scp "$cluster_root/scripts/release-manifest.mjs" \
   "$CLUSTER_NINGBO_HOST:/usr/local/lib/easyai-ai-gateway-release/release-manifest.mjs"
+for desired_state_file in \
+  namespace.yaml service-account-rbac.yaml application-config.yaml application.yaml \
+  database.yaml network-policy.yaml kustomization.yaml; do
+  cluster_scp "$cluster_root/deploy/kubernetes/production/$desired_state_file" \
+    "$CLUSTER_NINGBO_HOST:/usr/local/share/easyai-ai-gateway-release/production/$desired_state_file"
+done
 cluster_ssh "$CLUSTER_NINGBO_HOST" 'bash -s' <<'REMOTE'
 set -euo pipefail
 if [[ ! -e /etc/easyai-ai-gateway-cluster-release.conf ]]; then
@@ -24,5 +30,6 @@ fi
 chmod 0750 /usr/local/sbin/easyai-ai-gateway-cluster-release
 chmod 0640 /etc/easyai-ai-gateway-cluster-release.conf
 chmod 0755 /usr/local/lib/easyai-ai-gateway-release/release-manifest.mjs
+find /usr/local/share/easyai-ai-gateway-release/production -type f -exec chmod 0644 {} +
 REMOTE
 echo 'cluster_release_helper_install=PASS'