Support per-record offset ack w/ OffsetMetadata#246

Draft

kawamuray wants to merge 12 commits intoline:masterfrom

Commits on Oct 2, 2024

Introduce OutOfOrderCommitControl V4
kawamuray
committed

Commits on Oct 23, 2024

Save/restore per-offset completion status as metadata
kawamuray
committed

Commits on Nov 6, 2024

(fixup) improve logging, bugfixes
kawamuray
committed

Commits on Dec 16, 2024

(fixup) follow-up
kawamuray
committed

Commits on Dec 18, 2024

(fixup) complement unit tests
kawamuray
committed

Commits on Dec 25, 2024