CompletedUpload

A completed destination result supplied to a consume callback.

The framework still owns result while the callback is running. Returning Consume removes the entry without calling destination cleanup and transfers responsibility for the result to application code. Returning Postpone leaves the entry and result framework-owned, so a later cancellation, disallow, component removal, or socket shutdown may discard it. If a consume callback fails, that entry remains tracked; batch consumption is sequential rather than transactional, so entries consumed by earlier callbacks remain consumed if a later callback fails.