Add host capacity sample viewer with filtering and pagination

src/lib/hosts.ts

@@ -79,6 +79,13 @@ export interface ResourceAllowance {
     samples: number; observedAt: string | null;
 }
 export interface CapacityCalibration { running: ResourceAllowance; startup: ResourceAllowance }
+export interface CapacitySample {
+    hostId: string; hostName: string | null; instanceId: string; server: string | null;
+    generation: number; phase: 'startup' | 'running'; timestamp: string; cpuCores: number; memoryBytes: number;
+}
+export interface CapacitySamplePage {
+    samples: CapacitySample[]; total: number; page: number; pageSize: number;
+}
 export interface Host {
     id: string; name: string; hostname: string; mode: HostMode; portMin: number; portMax: number;
     bindAddress: string; publicAddress: string; minimumFreeBytes: number; createdAt: string;