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/deploy/UserGroupsManager.tsx

@@ -8,6 +8,7 @@ import { Label } from '@/components/ui/label';
 import { toast } from 'sonner';
 import { useConfirm } from '@/components/ui/confirm-dialog';
 import { deployApi } from '@/api';
+import type { JsonData } from '@/types/common';
 
 interface Group {
   id: number; name: string; description: string;
@@ -35,7 +36,7 @@ export default function UserGroupsManager() {
 
   const loadGroups = async () => {
     setLoading(true);
-    try { const res = await deployApi.getGroups(); setGroups((res as Record<string, any>)?.list || []); }
+    try { const res = await deployApi.getGroups(); setGroups((res as JsonData)?.list || []); }
     catch { toast.error('加载失败'); }
     finally { setLoading(false); }
   };