feat(q1): 前端类型安全治理完成 — any 83→40, P0 全部 done

- types/monitor.ts: 新增 6 个运行时记录类型(AlertEventRecord/AlertRuleRecord/
  AgentHostRecord/CronJobRecord/CertExpiryRecord/ApprovalWorkflowStepRecord)
- types/common.ts: 新增 OptionItem 通用下拉类型
- 组件级 any 清理 43 处:
  - AlertEventsTab/AlertRulesTab/AlertChannelDialog/alertShared (19处)
  - AuditOperationsTab normalizeLog + 筛选器 (8处)
  - CronJobManager 任务列表/编辑/操作 (6处)
  - AgentMonitor 主机列表/命令执行 (5处)
  - DashboardRecent 5 张卡片组件 (5处)
  - AlertManager 状态类型对齐 (联动修复)
  - Dashboard.tsx 调用端类型对齐 (联动修复)
- AlertChannel 接口新增 test_status 字段
- ESLint any: 83→40 (<50 目标达成)
- tsc -b / tsc --noEmit: 零错误
- npm run build: ✓ built in 17.11s
- 9/9 核心 API 回归通过

frontend/src/components/monitor/AlertManager.tsx

@@ -18,16 +18,17 @@ import { AlertRulesTab } from './AlertRulesTab';
 import { AlertRuleDialog } from './AlertRuleDialog';
 import { AlertChannelDialog } from './AlertChannelDialog';
 import type { JsonData } from '@/types/common';
+import type { AlertEventRecord, AlertRuleRecord, AlertChannel } from '@/types';
 
 export function AlertManager() {
   const [activeTab, setActiveTab] = useState('events');
-  const [alerts, setAlerts] = useState<JsonData[]>([]);
-  const [rules, setRules] = useState<JsonData[]>([]);
+  const [alerts, setAlerts] = useState<AlertEventRecord[]>([]);
+  const [rules, setRules] = useState<AlertRuleRecord[]>([]);
   const [loading, setLoading] = useState(true);
   const [ruleDialogOpen, setRuleDialogOpen] = useState(false);
-  const [editingRule, setEditingRule] = useState<JsonData>(null);
+  const [editingRule, setEditingRule] = useState<AlertRuleRecord | null>(null);
   const [channelDialogOpen, setChannelDialogOpen] = useState(false);
-  const [notifyChannels, setNotifyChannels] = useState<JsonData[]>([]);
+  const [notifyChannels, setNotifyChannels] = useState<AlertChannel[]>([]);
 
   const loadData = async () => {
     try {
@@ -56,7 +57,7 @@ export function AlertManager() {
     setRuleDialogOpen(true);
   };
 
-  const openEditRule = (rule: JsonData) => {
+  const openEditRule = (rule: AlertRuleRecord) => {
     setEditingRule(rule);
     setRuleDialogOpen(true);
   };