Fix container resource sampling and surface collection failures

src/lib/hosts.ts

@@ -69,6 +69,7 @@ export interface HostInventory {
     capabilities?: string[];
     agentUpdate?: HostAgentUpdate;
     instanceResources?: InstanceResources[];
+    instanceResourcesError?: string;
 }
 export interface InstanceResources {
     instanceId: string; generation: number; uptimeSeconds: number; cpuCores: number; memoryBytes: number;