- useTaskHandlers: deletes `handleSubtaskTasksCreated delegates with addToast`
and its `onSubtaskTasksCreated` fixture field. FN-074 removed task splitting;
grep confirms no production reference to either symbol remains, so the case
was asserting a deleted contract.
- settings-default-descriptions: records `githubStarPromptDismissedAt` as
internal bookkeeping written by useGitHubStarPrompt rather than a rendered
Settings field, which is what that guard requires of every settings key.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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