feat(alert): A2 告警引擎分布式安全 — Redis 分布式锁(SetNX)

- Cache 接口新增 SetNX 方法(go-redis 原子 / redka check-then-set 单副本安全)
- AlertEngine 改造为支持分布式锁: tryAcquireLock/releaseLock/GetEngineStatus
- 多副本部署时仅 Leader 执行告警检查, 60s TTL 防死锁, fail-open 容错
- 新增 GET /alerts/engine/status 监控端点(is_leader/instance_id/lock_holder)
- 修复 GrafanaDashboard.tsx Panel.options 类型不匹配导致构建中断
- 同步未提交的前端类型安全迁移(140+ 文件)
- ROADMAP/TDD_PLAN/PROJECT_EVALUATION 三文档同步更新

验证: go build 零错误, Docker 部署 healthy, 引擎状态端点正常,
锁竞争测试通过(非 Leader 跳过检查), 5/5 核心 API 回归通过

frontend/src/components/kubernetes/KubernetesNodes.tsx

@@ -11,18 +11,19 @@ import {
 } from '@/components/ui/table';
 import { RefreshCw, Search, Server, Loader2 } from 'lucide-react';
 import { kubernetesApi } from '@/api';
+import type { JsonData } from '@/types/common';
 
 export function KubernetesNodes() {
-  const [clusters, setClusters] = useState<any[]>([]);
+  const [clusters, setClusters] = useState<JsonData[]>([]);
   const [selectedCluster, setSelectedCluster] = useState('');
-  const [nodes, setNodes] = useState<any[]>([]);
+  const [nodes, setNodes] = useState<JsonData[]>([]);
   const [loading, setLoading] = useState(false);
   const [search, setSearch] = useState('');
   const [roleFilter, setRoleFilter] = useState('all');
 
   const loadClusters = useCallback(async () => {
     try {
-      const res: Record<string, any> = await kubernetesApi.getClusters();
+      const res: JsonData = await kubernetesApi.getClusters();
       const list = res?.list || [];
       setClusters(list);
       if (list.length > 0 && !selectedCluster) setSelectedCluster(String(list[0].id));
@@ -35,7 +36,7 @@ export function KubernetesNodes() {
     if (!selectedCluster) return;
     setLoading(true);
     try {
-      const res: Record<string, any> = await kubernetesApi.getNodes(selectedCluster);
+      const res: JsonData = await kubernetesApi.getNodes(selectedCluster);
       setNodes(Array.isArray(res) ? res : (res?.list || []));
     } catch { setNodes([]); } finally { setLoading(false); }
   }, [selectedCluster]);