refactor: make provisioning own instance lifecycle operations

src/lib/server/provisioning/index.ts

@@ -0,0 +1,7 @@
+// Request/observation boundary used by APIs, campaigns, beta tests, and schedules.
+// Execution is driven exclusively by the provisioning worker.
+export { requestLifecycle, requestRestart, provisioningOperation, cancelProvisioning, releaseRestartRequest } from './requests.js';
+export type { LifecycleOperation, RestartSource } from './requests.js';
+export { queueCreateServer, destroyServer, previewCreation, creationQueue, nextAvailablePort, nextLobbyNumber } from './instances.js';
+export { getDeployment, listDeployments, resumeVerification, resumeCleanup, resumeRebuild, cancelRemoval } from './history.js';
+export { restartSettling, restartRecoveryPending } from './restarts.js';