test(e2e): scope sentinel proposer-node assertion to selected slot

[AztecBot]

Summary

• Scope the online-validator sentinel assertion in multiple_validators_sentinel.parallel.test.ts to the selected first-node proposer slot.
• Keep the offline-validator assertion over the full post-stop window, since that is still the intended missed-activity coverage.
• Add an inline comment explaining why intermediate first-node proposer slots are not part of this assertion.

Analysis

Failed run: http://ci.aztec-labs.com/eb23494dc3ab7289

The failing test was e2e_p2p_multiple_validators_sentinel > collects attestations for validators in proposer node when block is not published. The assertion checked every online validator history entry in (initialSlot, slotForSentinel] and expected no attestation-missed, blocks-missed, or checkpoint-missed statuses.

In the failed run, the selected sentinel slot was 11 and the first-node proposer had the expected checkpoint-valid status at slot 11. The failure came from an earlier slot 10 history entry, blocks-missed, for that same validator. Since node 2 had already been stopped, an intermediate first-node proposer can legitimately fail quorum before the test reaches the selected slot. That makes the wide online-validator assertion stricter than the behavior this test is trying to prove.

The recent e2e fixes by spalladino point in the same direction: keep strict assertions tied to the selected slot/configuration after pipelining and warm-up effects are accounted for. In particular, #23573 already added the warm-up checkpoint wait here; this PR applies the remaining scoping fix for the second sentinel test.

Testing

• git diff --check
• yarn prettier --check end-to-end/src/e2e_p2p/multiple_validators_sentinel.parallel.test.ts could not run locally because this checkout has no Yarn node_modules state file (Couldn't find the node_modules state file).

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Created by claudebox · group: slackbot

[AztecBot]

Automatically closing this stale claudebox draft PR (no updates for 5+ days). Re-open if still needed.