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/EventsPage.tsx

@@ -9,6 +9,7 @@ import { RefreshCw, ChevronRight, Bell, AlertTriangle, X } from 'lucide-react';
 import { kubernetesApi } from '@/api';
 import { EventTable } from './EventTable';
 import { normalizeK8sEvent, formatEventRelative } from './k8s-event-utils';
+import type { JsonData } from '@/types/common';
 
 interface RankItem { name: string; count: number }
 
@@ -76,20 +77,20 @@ export default function EventsPage() {
   const { clusterCode } = useParams<{ clusterCode: string }>();
   const navigate = useNavigate();
   const [loading, setLoading] = useState(false);
-  const [events, setEvents] = useState<any[]>([]);
-  const [clusters, setClusters] = useState<any[]>([]);
+  const [events, setEvents] = useState<JsonData[]>([]);
+  const [clusters, setClusters] = useState<JsonData[]>([]);
   const [namespaces, setNamespaces] = useState<string[]>([]);
   const [selectedNs, setSelectedNs] = useState('all');
   const [filterType, setFilterType] = useState('all');
   const [timeWindow, setTimeWindow] = useState('0');
   const [activeCluster, setActiveCluster] = useState(clusterCode || '');
-  const [summary, setSummary] = useState<any>(null);
+  const [summary, setSummary] = useState<JsonData>(null);
   const [selectedReason, setSelectedReason] = useState('');
   const [selectedKind, setSelectedKind] = useState('');
 
 
   useEffect(() => {
-    kubernetesApi.getClusters().then((res: any) => {
+    kubernetesApi.getClusters().then((res: JsonData) => {
       const list = res?.list || [];
       setClusters(list);
       if (!activeCluster && list.length > 0) {
@@ -102,7 +103,7 @@ export default function EventsPage() {
 
   useEffect(() => {
     if (!activeCluster) return;
-    kubernetesApi.getNamespaces(activeCluster).then((res: any) => {
+    kubernetesApi.getNamespaces(activeCluster).then((res: JsonData) => {
       setNamespaces(Array.isArray(res) ? res : (res?.list || res?.data || []));
     }).catch(() => {});
   }, [activeCluster]);
@@ -113,7 +114,7 @@ export default function EventsPage() {
     try {
       const ns = selectedNs === 'all' ? undefined : selectedNs;
       const ft = filterType === 'all' ? undefined : filterType;
-      const res: Record<string, any> = await kubernetesApi.getEvents(activeCluster, ns, ft);
+      const res: JsonData = await kubernetesApi.getEvents(activeCluster, ns, ft);
       setEvents(Array.isArray(res) ? res : (res?.list || []));
     } catch { setEvents([]); } finally { setLoading(false); }
   }, [activeCluster, selectedNs, filterType]);
@@ -123,7 +124,7 @@ export default function EventsPage() {
     try {
       const ns = selectedNs === 'all' ? undefined : selectedNs;
       const hours = parseInt(timeWindow) || undefined;
-      const res: Record<string, any> = await kubernetesApi.getEventsSummary(activeCluster, ns, hours);
+      const res: JsonData = await kubernetesApi.getEventsSummary(activeCluster, ns, hours);
       setSummary(res || null);
     } catch { setSummary(null); }
   }, [activeCluster, selectedNs, timeWindow]);
@@ -151,15 +152,15 @@ export default function EventsPage() {
   const normalCount = useMemo(() => events.filter((e) => e.type === 'Normal').length, [events]);
 
   const reasonData = useMemo<RankItem[]>(() =>
-    (summary?.by_reason || []).map((r: any) => ({ name: r.reason || 'Unknown', count: r.count })),
+    (summary?.by_reason || []).map((r: JsonData) => ({ name: r.reason || 'Unknown', count: r.count })),
   [summary]);
 
   const nsData = useMemo<RankItem[]>(() =>
-    (summary?.by_namespace || []).map((n: any) => ({ name: n.namespace || '<cluster>', count: n.count })),
+    (summary?.by_namespace || []).map((n: JsonData) => ({ name: n.namespace || '<cluster>', count: n.count })),
   [summary]);
 
   const kindData = useMemo<RankItem[]>(() =>
-    (summary?.by_kind || []).map((k: any) => ({ name: k.kind || 'Unknown', count: k.count })),
+    (summary?.by_kind || []).map((k: JsonData) => ({ name: k.kind || 'Unknown', count: k.count })),
   [summary]);
 
   return (
@@ -185,7 +186,7 @@ export default function EventsPage() {
           <Select value={activeCluster} onValueChange={(v) => { setActiveCluster(v); navigate(`/kubernetes/${v}/events`); }}>
             <SelectTrigger className="w-40 h-8 text-xs"><SelectValue /></SelectTrigger>
             <SelectContent>
-              {clusters.map((c: any) => (
+              {clusters.map((c: JsonData) => (
                 <SelectItem key={c.id} value={c.code || String(c.id)} className="text-xs">{c.name || c.code}</SelectItem>
               ))}
             </SelectContent>
@@ -260,7 +261,7 @@ export default function EventsPage() {
               最新告警 ({summary.recent_warnings.length})
             </h3>
             <div className="space-y-1">
-              {summary.recent_warnings.map((w: any, i: number) => (
+              {summary.recent_warnings.map((w: JsonData, i: number) => (
                 <div key={i} className="text-xs py-1.5 px-2 rounded hover:bg-[var(--dg-bg-tertiary)]/50">
                   <div className="flex items-center gap-2 flex-wrap">
                     <span className="shrink-0 font-mono text-[var(--dg-warning)]">{w.reason}</span>