qwen-code Adds Two Review Lenses Built From a Post-Mortem of a Defect Four Review Rounds Missed

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PR #9708, merged 2026-08-22 and shipped in the 08-23 and 08-24 nightlies, adds a temporal-reachability lens and an incident-replay lens to qwen-code's `/review` agent briefs. The first asks whether a value exists at the moment its consumer needs it, with findings formatted as "produced at X, needed at Y, Y precedes X"; the second treats the failure story in a PR description as a spec and requires walking the incident step by step to name where the change alters the outcome. Both came from PR #9655, where a human found the one blocking defect eleven minutes after the final automated LGTM, having survived four review rounds, a three-stage triage pass and an autofix takeover.