feat(ops): 前端添加指标阈值类型定义和API

- 添加OpsMetricThresholds类型定义
- 新增getMetricThresholds和updateMetricThresholds API方法

frontend/src/api/admin/ops.ts

@@ -661,6 +661,14 @@ export interface EmailNotificationConfig {
   }
 }
 
+export interface OpsMetricThresholds {
+  sla_percent_min?: number | null                // SLA低于此值变红
+  latency_p99_ms_max?: number | null             // 延迟P99高于此值变红
+  ttft_p99_ms_max?: number | null                // TTFT P99高于此值变红
+  request_error_rate_percent_max?: number | null // 请求错误率高于此值变红
+  upstream_error_rate_percent_max?: number | null // 上游错误率高于此值变红
+}
+
 export interface OpsDistributedLockSettings {
   enabled: boolean
   key: string
@@ -681,6 +689,7 @@ export interface OpsAlertRuntimeSettings {
       reason: string
     }>
   }
+  thresholds: OpsMetricThresholds // 指标阈值配置
 }
 
 export interface OpsAdvancedSettings {
@@ -929,6 +938,17 @@ export async function updateAdvancedSettings(config: OpsAdvancedSettings): Promi
   return data
 }
 
+// ==================== Metric Thresholds ====================
+
+async function getMetricThresholds(): Promise<OpsMetricThresholds> {
+  const { data } = await apiClient.get<OpsMetricThresholds>('/admin/ops/settings/metric-thresholds')
+  return data
+}
+
+async function updateMetricThresholds(thresholds: OpsMetricThresholds): Promise<void> {
+  await apiClient.put('/admin/ops/settings/metric-thresholds', thresholds)
+}
+
 export const opsAPI = {
   getDashboardOverview,
   getThroughputTrend,
@@ -952,7 +972,9 @@ export const opsAPI = {
   getAlertRuntimeSettings,
   updateAlertRuntimeSettings,
   getAdvancedSettings,
-  updateAdvancedSettings
+  updateAdvancedSettings,
+  getMetricThresholds,
+  updateMetricThresholds
 }
 
 export default opsAPI

frontend/src/views/admin/ops/types.ts

@@ -14,6 +14,7 @@ export type {
   EmailNotificationConfig,
   OpsDistributedLockSettings,
   OpsAlertRuntimeSettings,
+  OpsMetricThresholds,
   OpsAdvancedSettings,
   OpsDataRetentionSettings,
   OpsAggregationSettings