refactor(health): share health snapshot computation

ts/ui/server.ts

@@ -22,6 +22,7 @@ import { VERSION } from '../constants.ts';
 import type { ContainerManager } from '../containers/container-manager.ts';
 import type { ClusterManager } from '../cluster/cluster-manager.ts';
 import { GpuDetector } from '../hardware/gpu-detector.ts';
+import { buildHealthSnapshot } from '../helpers/health.ts';
 
 interface IBundledFile {
   path: string;
@@ -150,42 +151,13 @@ export class UiServer {
     const models = await this.containerManager.getAllAvailableModels();
     const gpus = await this.gpuDetector.detectGpus();
 
-    let status: 'ok' | 'degraded' | 'error' = 'ok';
-    const reasons = new Set<'unhealthy_container' | 'no_models_available' | 'gpu_detection_failed'>();
-    const containerHealth: Record<string, 'healthy' | 'unhealthy'> = {};
-    const gpuStatus: Record<string, 'available' | 'in_use' | 'error'> = {};
-
-    for (const [id, s] of statuses) {
-      if (s.running && s.health === 'healthy') {
-        containerHealth[id] = 'healthy';
-      } else {
-        containerHealth[id] = 'unhealthy';
-        status = 'degraded';
-        reasons.add('unhealthy_container');
-      }
-    }
-    for (const gpu of gpus) {
-      gpuStatus[gpu.id] = 'available';
-    }
-
-    if (models.size === 0) {
-      status = 'degraded';
-      reasons.add('no_models_available');
-    }
-
-    const health: IHealthResponse = {
-      status,
-      reasons: Array.from(reasons),
+    const health: IHealthResponse = buildHealthSnapshot({
+      statuses,
+      modelCount: models.size,
+      gpus,
+      startTime: this.startTime,
       version: VERSION,
-      uptime: Math.floor((Date.now() - this.startTime) / 1000),
-      containers: statuses.size,
-      models: models.size,
-      gpus: gpus.length,
-      details: {
-        containers: containerHealth,
-        gpus: gpuStatus,
-      },
-    };
+    });
 
     const clusterConfig = this.clusterManager.getConfig();