Show running instances on host pages

src/lib/server/hosts/instances.ts

@@ -0,0 +1,15 @@
+import type { ServerObservation } from '../../server-observation.js';
+import { db } from '../db/index.js';
+import type { ServerRow } from '../fleet/servers.js';
+import { observationReader } from '../fleet/status.js';
+
+/** Current instances remain visible when their host or game stops reporting. */
+export function hostInstances(hostId: string): ServerObservation[] {
+    const servers = db().prepare(`SELECT s.* FROM servers s
+        JOIN native_instances i ON i.server = s.name
+        WHERE i.host_id = ? AND i.retired_at IS NULL AND s.destroyed_at IS NULL
+        ORDER BY s.name`).all(hostId) as ServerRow[];
+    if (!servers.length) return [];
+    const observe = observationReader();
+    return servers.map(observe);
+}