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/YamlViewer.tsx

@@ -10,6 +10,7 @@ import { getYamlResourceConfig, yamlDownloadFilename } from './k8s-yaml-resource
 import { YamlEditorToolbar } from './YamlEditorToolbar';
 import { YamlCodeMirror } from './YamlCodeMirror';
 import { downloadYamlFile } from '@/utils/export';
+import type { JsonData } from '@/types/common';
 
 interface YamlViewerProps {
   clusterCode: string;
@@ -61,7 +62,7 @@ export function YamlViewer({
       setRawYaml(text);
       await applyStripped(text);
     } catch (e) {
-      toast({ title: '获取YAML失败', description: (e as Record<string, any>).message, variant: 'destructive' });
+      toast({ title: '获取YAML失败', description: (e as JsonData).message, variant: 'destructive' });
       const err = `# Error: ${(e as Error).message}`;
       setRawYaml(err);
       setDisplayYaml(err);