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/dashboard/Dashboard.tsx

@@ -14,6 +14,7 @@ import {
   KubernetesClusterCard,
 } from './DashboardRecent';
 import { SkeletonDashboard } from '@/components/layout/SkeletonCard';
+import type { JsonData } from '@/types/common';
 
 /**
  * Dashboard - 优化后的仪表盘页面
@@ -30,13 +31,13 @@ export function Dashboard() {
   const navigate = useNavigate();
   const [initialLoading, setInitialLoading] = useState(true);
   const [refreshing, setRefreshing] = useState(false);
-  const [stats, setStats] = useState<any>(null);
-  const [servers, setServers] = useState<any[]>([]);
-  const [clusters, setClusters] = useState<any[]>([]);
-  const [alerts, setAlerts] = useState<any[]>([]);
-  const [releases, setReleases] = useState<any[]>([]);
-  const [expCerts, setExpCerts] = useState<any[]>([]);
-  const [metrics, setMetrics] = useState<any[]>([]);
+  const [stats, setStats] = useState<JsonData>(null);
+  const [servers, setServers] = useState<JsonData[]>([]);
+  const [clusters, setClusters] = useState<JsonData[]>([]);
+  const [alerts, setAlerts] = useState<JsonData[]>([]);
+  const [releases, setReleases] = useState<JsonData[]>([]);
+  const [expCerts, setExpCerts] = useState<JsonData[]>([]);
+  const [metrics, setMetrics] = useState<JsonData[]>([]);
 
   const refreshData = useCallback(async () => {
     setRefreshing(true);

frontend/src/components/dashboard/DashboardCharts.tsx

@@ -16,6 +16,7 @@ import {
 } from 'recharts';
 import { Cpu, HardDrive, Activity, MemoryStick, Database } from 'lucide-react';
 import { cn } from '@/lib/utils';
+import type { JsonData } from '@/types/common';
 
 // Cloud platform color mapping (theme-aware)
 const CLOUD_COLORS: Record<string, string> = {
@@ -32,7 +33,7 @@ const CLOUD_COLORS: Record<string, string> = {
 };
 const FALLBACK_CLOUD_COLORS = ['#ff6a00', '#ff9900', '#006eff', '#ff0000', '#0078d4', '#10b981', '#a855f7', '#ec4899'];
 
-export function computeMonthChange( monthTrend: any[]): {
+export function computeMonthChange( monthTrend: JsonData[]): {
   pct: number;
   label: string;
   direction: 'up' | 'down' | 'neutral';
@@ -65,7 +66,7 @@ function generateMetricsData(avgCpu: number, avgMemory: number, avgDisk: number,
   return data;
 }
 
-function buildMetricsFromReal( metrics: any[], avgDisk: number) {
+function buildMetricsFromReal( metrics: JsonData[], avgDisk: number) {
   if (!metrics || metrics.length === 0) return [];
   const buckets: Record<string, { cpu?: number; memory?: number }> = {};
   for (const m of metrics) {
@@ -88,12 +89,12 @@ function buildMetricsFromReal( metrics: any[], avgDisk: number) {
 }
 
 // Custom tooltip for charts (theme-aware)
-function CustomTooltip({ active, payload, label }: any) {
+function CustomTooltip({ active, payload, label }: JsonData) {
   if (!active || !payload) return null;
   return (
     <div className="chart-tooltip px-3 py-2">
       <p className="text-xs font-medium mb-1.5" style={{ color: 'var(--dg-text-secondary)' }}>{label}</p>
-      {payload.map(( entry: any, index: number) => (
+      {payload.map((entry: JsonData, index: number) => (
         <div key={index} className="flex items-center gap-2 text-xs">
           <span className="w-2 h-2 rounded-full" style={{ backgroundColor: entry.color }} />
           <span style={{ color: 'var(--dg-text-muted)' }}>{entry.name}:</span>
@@ -106,9 +107,9 @@ function CustomTooltip({ active, payload, label }: any) {
   );
 }
 
-export function CostOverviewCard({ costStats }: { costStats: Record<string, any> }) {
-  const cloudCosts: Record<string, any>[] = costStats?.cloud_costs ?? [];
-  const monthTrend: Record<string, any>[] = costStats?.month_trend ?? [];
+export function CostOverviewCard({ costStats }: { costStats: JsonData }) {
+  const cloudCosts: JsonData[] = costStats?.cloud_costs ?? [];
+  const monthTrend: JsonData[] = costStats?.month_trend ?? [];
 
   const costData = cloudCosts.map((c, i) => ({
     name: c.cloud,
@@ -201,12 +202,12 @@ export function CostOverviewCard({ costStats }: { costStats: Record<string, any>
   );
 }
 
-export function TopResourceUsageCard({ topUsage }: { topUsage: any}) {
+export function TopResourceUsageCard({ topUsage }: { topUsage: JsonData}) {
   const topCpuServers = (topUsage?.cpu ?? []).slice(0, 5);
   const topMemoryServers = (topUsage?.memory ?? []).slice(0, 5);
   const topDiskServers = (topUsage?.disk ?? []).slice(0, 5);
 
-  const renderList = ( items: any[],
+  const renderList = ( items: JsonData[],
     color: string,
     BarColor: string,
     icon: React.ReactNode,
@@ -280,7 +281,7 @@ export function ResourceUsageCard({
   avgCpu: number;
   avgMemory: number;
   avgDisk: number;
-  metrics?: any[];
+  metrics?: JsonData[];
 }) {
   const realData = buildMetricsFromReal(metrics ?? [], avgDisk);
   const data = realData.length > 0 ? realData : generateMetricsData(avgCpu, avgMemory, avgDisk, 24);