tick-history: 2026-04-29T05:40Z — time-travel-thread tick

docs/hygiene-history/ticks/2026/04/29/0540Z.md

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+| 2026-04-29T05:40:33Z | claude-opus-4-7 | 26f978a2 | time-travel-thread tick — PR #796 thread resolved as obsolete. Copilot flagged that the recovery shard #796 referenced 0526Z.md and 0528Z.md which "don't exist under docs/hygiene-history/ticks/2026/04/29/" — but at review time, PRs #791 and #793 hadn't merged yet. Both have since landed (e7daf23 + 059e96f); the cited shards exist on current main. Resolved as time-travel-artifact thread (a new sub-class of recurring-fix-class catalog: **time-travel-review-artifact** — reviewer's snapshot is older than the current main state, so cross-references appear broken until the cited PRs land). | [#796](https://github.com/Lucent-Financial-Group/Zeta/pull/796) [#797](https://github.com/Lucent-Financial-Group/Zeta/pull/797) [#798](https://github.com/Lucent-Financial-Group/Zeta/pull/798) | Trajectory observation: time-travel-review-artifact is a structural pattern in PR-review systems — reviewers see a snapshot at review time, and if cited PRs land between review and current state, the references "look broken" but resolve themselves. The right response is to verify the current state (`ls` against current main) + comment with the now-merged SHAs + resolve. The recurring-fix-class catalog continues to absorb edge cases without growing the rule surface. |