Delegate to close(), awaiting the same cleanup on scope exit.
Cancel active work, await cleanup and permanently close this instance. Idempotent.
Copy within this storage instance, replacing the destination and preserving metadata.
Deleting a missing object succeeds.
A missing object throws StorageError with code not_found.
Stable URL only when a public base URL was explicitly configured.
Only a confirmed missing object returns undefined; other failures throw.
S3 protocol adapter for custom endpoints, with bounded uploads and owned streams.