feat: 完善服务监控与下游重投

api/src/infrastructure-monitoring/infrastructure-monitoring.contracts.ts

@@ -12,6 +12,18 @@ export type InfrastructureServiceStatus = {
   status: 'healthy' | 'unhealthy' | 'unknown';
 };
 
+export type InfrastructureServiceMetricGroup = {
+  key: string;
+  name: string;
+  available: boolean;
+  metrics: Array<{
+    key: string;
+    label: string;
+    value: number | null;
+    unit: 'percent' | 'seconds' | 'count' | 'per_second' | 'bytes';
+  }>;
+};
+
 export type InfrastructureAlert = {
   fingerprint: string;
   name: string;
@@ -61,5 +73,6 @@ export type InfrastructureMonitoringOverview = {
     networkTransmitBytesPerSecond: InfrastructureMetricPoint[];
   };
   services: InfrastructureServiceStatus[];
+  serviceMetrics: InfrastructureServiceMetricGroup[];
   alerts: InfrastructureAlert[];
 };