Fix controller stalls during large collection launches

src/lib/server/hosts/capacity.ts

@@ -1,6 +1,6 @@
 import { db } from '../db/index.js';
 import { listHosts, requireReadyHost } from './index.js';
-import { requireReadyLibrary } from '../game-files/index.js';
+import { assertReadyLibrary } from '../game-files/index.js';
 import type { Host } from '../../hosts.js';
 import { capacityCalibration } from './calibration.js';
 
@@ -101,7 +101,7 @@ export function choosePlacement(options: PlacementOptions): { host: Host; port:
     for (const host of listHosts().filter(host => !options.hostId || host.id === options.hostId)) {
         try {
             requireReadyHost(host.id, { image: options.image, requiredBytes: INSTANCE_STORAGE_BYTES });
-            requireReadyLibrary(host.id, options.libraryId);
+            assertReadyLibrary(host.id, options.libraryId);
             const port = availableHostPort(host, options);
             if (port === null) throw new Error('No available UDP/TCP game port.');
             const load = projectedLoad(host, options);