fix(orchestrator): mint distinct message IDs for cancel re-publishes - #505
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## Summary ### Why? The cancel controller published its speculate hand-off with the bare batch ID as the message ID. The queue deduplicates on (topic, partition key, message ID) against every row it has not garbage-collected yet, consumed ones included, so a redelivery's re-publish for the same batch was a silent no-op — leaving a batch stuck Cancelling with nothing driving it to terminal. Same class of bug as b1f5795 in stovepipe. ### What? `publishBatchID` now goes through `submitqueue/core/publish`: `publish.UniqueID` mints a distinct message ID per publish (and documents the dedup rule once), and `publish.Message` owns the registry-lookup plumbing the controller previously hand-rolled. The batch-path test now asserts the payload still carries the batch ID while the message ID is distinct per publish, and the multi-batch tests assert on the payload's batch ID for the same reason. ## Test Plan ✅ `bazel test //submitqueue/orchestrator/controller/cancel/...`
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Summary
Why?
The cancel controller published its speculate hand-off with the bare batch ID as the message ID. The queue deduplicates on (topic, partition key, message ID) against every row it has not garbage-collected yet, consumed ones included, so a redelivery's re-publish for the same batch was a silent no-op — leaving a batch stuck Cancelling with nothing driving it to terminal. Same class of bug as b1f5795 in stovepipe.
What?
publishBatchIDnow goes throughsubmitqueue/core/publish:publish.UniqueIDmints a distinct message ID per publish (and documents the dedup rule once), andpublish.Messageowns the registry-lookup plumbing the controller previously hand-rolled. The batch-path test now asserts the payload still carries the batch ID while the message ID is distinct per publish, and the multi-batch tests assert on the payload's batch ID for the same reason.Test Plan
✅
bazel test //submitqueue/orchestrator/controller/cancel/...Stack