feat(ops): 集成运维监控设置对话框到仪表盘

- 在OpsDashboardHeader添加设置和警报规则按钮
- 在OpsDashboard集成OpsSettingsDialog组件
- 添加警报规则弹窗展示
- 添加高级设置API类型定义
- 支持从Header快速访问设置和规则管理

相关文件：
- frontend/src/api/admin/ops.ts
- frontend/src/views/admin/ops/types.ts
- frontend/src/views/admin/ops/OpsDashboard.vue
- frontend/src/views/admin/ops/components/OpsDashboardHeader.vue

frontend/src/api/admin/ops.ts

@@ -676,6 +676,23 @@ export interface OpsAlertRuntimeSettings {
   }
 }
 
+export interface OpsAdvancedSettings {
+  data_retention: OpsDataRetentionSettings
+  aggregation: OpsAggregationSettings
+}
+
+export interface OpsDataRetentionSettings {
+  cleanup_enabled: boolean
+  cleanup_schedule: string
+  error_log_retention_days: number
+  minute_metrics_retention_days: number
+  hourly_metrics_retention_days: number
+}
+
+export interface OpsAggregationSettings {
+  aggregation_enabled: boolean
+}
+
 export interface OpsErrorLog {
   id: number
   created_at: string
@@ -894,6 +911,17 @@ export async function updateAlertRuntimeSettings(config: OpsAlertRuntimeSettings
   return data
 }
 
+// Advanced settings (DB-backed)
+export async function getAdvancedSettings(): Promise<OpsAdvancedSettings> {
+  const { data } = await apiClient.get<OpsAdvancedSettings>('/admin/ops/advanced-settings')
+  return data
+}
+
+export async function updateAdvancedSettings(config: OpsAdvancedSettings): Promise<OpsAdvancedSettings> {
+  const { data } = await apiClient.put<OpsAdvancedSettings>('/admin/ops/advanced-settings', config)
+  return data
+}
+
 export const opsAPI = {
   getDashboardOverview,
   getThroughputTrend,
@@ -915,7 +943,9 @@ export const opsAPI = {
   getEmailNotificationConfig,
   updateEmailNotificationConfig,
   getAlertRuntimeSettings,
-  updateAlertRuntimeSettings
+  updateAlertRuntimeSettings,
+  getAdvancedSettings,
+  updateAdvancedSettings
 }
 
 export default opsAPI