tick-history: 2026-04-29T05:26Z — transient-flake recovery success (30 PRs total)

docs/hygiene-history/ticks/2026/04/29/0526Z.md

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+| 2026-04-29T05:26:19Z | claude-opus-4-7 | 26f978a2 | twenty-second tick — transient-flake recovery success. PR #788 (nineteenth tick / two-more-merges shard, after the GitHub-502-on-elan re-run) and PR #789 (twentieth tick / pure-CI-wait shard) both squash-merged onto main. 30 PRs total this session arc. The transient-CI-infrastructure-flake fix-class entered the catalog this session, was exercised once (the elan-toolchain 502), recovered cleanly via `gh run rerun --failed`, and the affected PR landed on the next CI cycle. The recovery pattern works. | [#788 merged](https://github.com/Lucent-Financial-Group/Zeta/pull/788), [#789 merged](https://github.com/Lucent-Financial-Group/Zeta/pull/789), [#790](https://github.com/Lucent-Financial-Group/Zeta/pull/790) | Trajectory observation: the transient-CI-flake class is now an exercised fix pattern in the recurring-fix-class catalog. The mechanical recovery (`gh run rerun --failed`) works without code changes — the flake was external, the substrate-correctness was already correct. This validates the "convergence on substrate-correctness; CI-infrastructure noise is now the noise floor" framing from last tick. The factory survives external flakes without rolling back substrate work. |