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/approval/ApprovalProcessTab.tsx

@@ -19,6 +19,7 @@ import {
   getApprovalTypeIcon,
   getInstanceType,
 } from './helpers';
+import type { JsonData } from '@/types/common';
 
 // 状态标签页定义
 const STATUS_TABS = [
@@ -69,16 +70,16 @@ function getStatusBadge(status: string) {
 }
 
 interface ApprovalProcessTabProps {
-  processes: any[];
-  filteredInstances: any[];
+  processes: JsonData[];
+  filteredInstances: JsonData[];
   loading: boolean;
   searchQuery: string;
   setSearchQuery: (v: string) => void;
   statusFilter: string;
   setStatusFilter: (v: string) => void;
-  onView: ( instance: any) => void;
-  onApprove: ( instance: any) => void;
-  onReject: ( instance: any) => void;
+  onView: (instance: JsonData) => void;
+  onApprove: (instance: JsonData) => void;
+  onReject: (instance: JsonData) => void;
 }
 
 export function ApprovalProcessTab({