Add $state errorMessage + role=alert banner to ChronikFuerDichBox. Both enhance callbacks
now inspect result.type and set the error message on 'failure' or 'error'; errorMessage
is cleared on each new submit attempt.
Upgrade both test files to the mockFormResult pattern (via vi.hoisted) so the result
callback is exercised. Add a failing-action test in each file that asserts role=alert
appears after a form submit with type='failure'.
Fix bare Function cast → explicit typed cast to satisfy @typescript-eslint/no-unsafe-function-type.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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