Deferred listeners: an oversized deferred entry or webhook payload is dropped, not delivered #4707

Left open as an author decision on the development → beta release #4580 (review thread #4580 (comment)), with a recommendation from #4669. Tracked here so it outlives the release PR.

The decision

An entry larger than the job argument budget (lib/Service/Deferral/ListenerDeferralService.php:375) is skipped with one error log line: the notification, webhook or projection it carried never runs and nothing retries it. #4669 left it open: an oversized deferred entry or webhook payload is still dropped and logged. The spec makes the drop the requirement ("SHALL be left out and logged").

Suggested direction

Degrade instead of drop: store the payload separately, re-enqueue a reduced entry, or run that one entry inline; update the spec scenario "One entry too large for any job" to match. Done when DeferredChunksFitTheJobLimitTest::testAnEntryTooLargeForAnyJobIsNamedAndTheRestGo asserts the large entry is still delivered in some form.